U.S. patent application number 15/575875 was filed with the patent office on 2019-12-26 for display device and terminal for controlling the same.
The applicant listed for this patent is LG ELECTRONIS INC.. Invention is credited to Sunho HWANG, Kwangseob JEONG, Sijin KIM, Eunjung LEE, Sangrok LEE.
Application Number | 20190391632 15/575875 |
Document ID | / |
Family ID | 65720244 |
Filed Date | 2019-12-26 |
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United States Patent
Application |
20190391632 |
Kind Code |
A1 |
LEE; Sangrok ; et
al. |
December 26, 2019 |
DISPLAY DEVICE AND TERMINAL FOR CONTROLLING THE SAME
Abstract
Provided is a display device. The display device includes a
wireless communication unit configured to transmit/receive a packet
according to a wireless communication manner, a storage unit
configured to store information of at least one wake-up
registration device, and a controller configured to allow the
wireless communication unit to operate in a wake-up mode when power
of the display device is turned off. The wireless communication
unit outputs a first packet including information of the display
device as operating in the wake-up mode, receives a second packet
corresponding to a response of the outputted first packet, and
turns on the power of the display device on the basis of the
received second packet.
Inventors: |
LEE; Sangrok; (Seoul,
KR) ; HWANG; Sunho; (Seoul, KR) ; JEONG;
Kwangseob; (Seoul, KR) ; KIM; Sijin; (Seoul,
KR) ; LEE; Eunjung; (Seoul, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
LG ELECTRONIS INC. |
Seoul |
|
KR |
|
|
Family ID: |
65720244 |
Appl. No.: |
15/575875 |
Filed: |
September 19, 2017 |
PCT Filed: |
September 19, 2017 |
PCT NO: |
PCT/KR2017/010265 |
371 Date: |
November 21, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04M 2250/02 20130101;
H04N 21/4436 20130101; G09G 2330/021 20130101; G06F 3/0346
20130101; H04W 52/028 20130101; H04M 1/72533 20130101; H04N 21/6543
20130101; H04W 52/0229 20130101; G06F 1/3265 20130101 |
International
Class: |
G06F 1/3234 20060101
G06F001/3234; H04N 21/443 20060101 H04N021/443 |
Claims
1. A display device comprising: a wireless communication unit
configured to wirelessly transmit a packet or wirelessly receive a
packet; a memory configured to store information of at least one
registered wake-up device; and a controller configured to control
the wireless communication unit, wherein when power of the display
device is turned off, the controller to control the wireless
communication device to operate in a wake-up mode, wherein when the
wireless communication unit is operating in the wake-up mode, the
wireless communication unit is to output a first packet including
information of the display device, wherein the wireless
communication unit to receive a second packet in response to the
outputted first packet, and the controller to turn on the power of
the display device based on the received second packet.
2. The display device according to claim 1, wherein in response to
receiving the second packet, the wireless communication unit to
identify a terminal that provides the second packet, and wherein
when the controller determines that the identified terminal
corresponds to the at least one registered wake-up device, the
power of the display device is turned on.
3. The display device according to claim 2, wherein the information
of the at least one registered wake-up device includes a media
access control (MAC) address of the at least one registered wake-up
device or a Bluetooth device address of the at least one registered
wake-up device, and the wireless communication unit is configured
to identify the terminal that provides the second packet based on
the MAC address of the terminal or the Bluetooth device address of
the terminal, which is provided in the second packet.
4. The display device according to claim 3, wherein the wireless
communication unit is configured to identify the terminal that
provides the second packet when information of the display device
is provided in the second packet.
5. (canceled)
6. The display device according to claim 1, wherein in response to
receiving the second packet, the wireless communication unit to
identify a terminal that provides the second packet based on
information within the second packet, and the wireless
communication unit is to transmit, to the controller, a trigger
signal to turn on the power of the display device based on the
received second packet.
7. The display device according to claim 1, comprising a power
supply to supply power to the display device, wherein the wireless
communication unit is configured to control the power supply to
turn on the power of the display device based on the received
second packet.
8. The display device according to claim 1, wherein the second
packet includes information regarding a specific function of the
display device or an application execution request of the display
device, and wherein when the power of the display device is turned
on, the controller is to execute the specific function or the
application.
9. The display device according to claim 8, comprising a display,
wherein the second packet includes a screen mirroring execution
request, and wherein when the controller receives, from the
terminal providing the second packet, image data corresponding to a
screen displayed on the terminal when the power of the display
device is turned on, the controller is to control the display to
display a mirroring screen based on the received image data.
10. The display device according to claim 1, wherein the first
packet includes encoding information, and the wireless
communication unit is configured to decode information of the
received second packet based on the encoding information and turn
on the power of the display device based on the decoded information
of the received second packet.
11. The display device according to claim 10, wherein when the
wireless communication unit is operating in the wake-up mode, the
wireless communication unit is to periodically output the first
packet including the encoding information, and the outputted
encoding information is to change each time the first packet is
outputted from the wireless communication unit.
12. The display device according to claim 11, wherein the wireless
communication unit is configured to decode the received second
packet based on a plurality of encoding information within a
plurality of first packets.
13. The display device according to claim 1, wherein the wireless
communication unit includes a Bluetooth module configured to
support Bluetooth low energy (BLE), and the first packet
corresponds to an advertising packet of the BLE, and the second
packet corresponds to an advertising packet of the BLE.
14. A terminal comprising: a wireless communication unit configured
to receive a first packet from a display device, wherein the
display device is to provide the first packet when power to the
display device is turned off; a memory configured to store
information of at least one wake-up enabled device; and a
controller configured to identify the display device based on the
received first packet, wherein when the information of the at least
one wake-up enabled device corresponds to information of the
identified display device, the controller to provide a second
packet including the information of the terminal, and the
controller to control the wireless communication unit to output the
second packet.
15. The terminal according to claim 14, further comprising a
display, wherein when the information of the at least one wake-up
enabled device corresponds to the information of the identified
display device, the controller is to control the display to display
a wake-up list including the information of the display device, and
wherein the controller to receive a wake-up request from the
display device, from among at least one device within the displayed
wake-up list, the controller is to provide the second packet
including information of the received wake-up request.
16. The terminal according to claim 15, wherein the second packet
includes information regarding a specific function of the display
device or an application execution request of the display
device.
17. The terminal according to claim 16, wherein the second packet
includes a screen mirroring execution request, and when the
terminal is connected to the display device via wireless
communication and after the terminal transmits the second packet,
the controller is to transmit, to the display device, image data
corresponding to a screen displayed on the display.
18. The terminal according to claim 14, wherein the first packet
includes the information of the display device, and wherein when
the information of the display device includes a media access
control (MAC) address of the display device or a Bluetooth device
address of the display device.
19. The terminal according to claim 18, wherein the second packet
includes at least one of a MAC address of the terminal, the MAC
address of the display device, and a Bluetooth device address of
the terminal.
20. The terminal according to claim 14, wherein the first packet
includes encoding information, and the controller is configured to
provide a second packet that is encoded based on the encoding
information.
21. The display device according to claim 12, wherein the Bluetooth
module to continuously operate.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present application claims the benefit of an earlier
filing date and right of priority to PCT Application No.
PCT/KR2017/010265, filed on Sep. 19, 2017, the content of which is
herein incorporated by reference in its entirety.
TECHNICAL FIELD
[0002] The present disclosure relates to a display device and a
terminal for controlling the same, and more particularly, to a
display device of which power is turned on by a packet outputted
from a terminal in a state in which the power is turned off or
which is capable of performing a specific operation while turning
on the power, and a terminal that is capable of controlling the
display device so that the power of the display device is turned
on, or the display device performs a specific operation while
turning on the power.
BACKGROUND
[0003] Display devices are devices having functions of receiving,
processing, and displaying an image to be viewed to a user. For
example, such a display device receives a broadcast signal selected
by a user from broadcast signals transmitted from the broadcasting
station, separates an image signal from the received signal, and
displays the separated image signal on a display.
[0004] In recent years, due to development of broadcasting
technologies and network technologies, display devices have been
considerably diversified in function and thus improved in
performance. That is, display devices have been developed to
provide various other contents as well as just broadcasted contents
to a user. For example, display devices may provide game play,
music appreciation, internet shopping, and user-customized
information by various applications as well as programs received
from the broadcasting stations. To perform such an extended
function, display devices may be basically connected to other
devices or networks by using various communication protocols and
provide ubiquitous computing to the user. That is, display devices
have evolved into smart devices that enable connectivity to
networks and ubiquitous computing.
[0005] In a state in which power of such a display device is turned
off, there is a method of turning on the power of the display
device through a terminal (for example, a smart phone). For
example, when the terminal includes an infrared transceiver, the
terminal may transmits an infrared signal to the display device to
turn on the power of the display device. Alternatively, when the
terminal and the display device are connected to each other through
the network, a signal for turning on the power of the display
device may be transmitted through the network.
[0006] However, in the methods according to the related art, there
is an inefficient aspect that the terminal has to include the
infrared transceiver or to be previously connected to the display
device through the network. A vehicle typically includes a power
source, such as an internal combustion engine vehicle, an external
combustion engine vehicle, a gas turbine vehicle, an electric
vehicle, etc. according to a type of motor used.
[0007] An electric vehicle typically utilizes an electric motor
using electric energy and includes a pure electric vehicle, a
hybrid electric vehicle (HEV), a plug-in hybrid electric vehicle
(PHEV), a fuel cell electric vehicle (FCEV), etc.
[0008] Recently, intelligent vehicles have been actively developed
for safety or convenience of a driver or pedestrian.
[0009] An intelligent vehicle is an advanced vehicle implementing
information technology (IT) and is sometimes referred to as a
"smart vehicle." Some intelligent vehicles provide improved traffic
efficiency by implementing an advanced vehicle system and via
association with an intelligent traffic system (ITS).
[0010] In addition, research into sensors mounted in such an
intelligent vehicle has been actively conducted. Such sensors
typically include, for example, a camera, an infrared sensor, a
radar, a global positioning system (GPS), a Lidar, or a gyroscope.
In particular, a camera is often an important sensor playing the
role of human eyes.
SUMMARY
[0011] Embodiments provide a display device that is capable of
receiving a packet outputted from a terminal when power is turned
off to turn on the power or perform a specific operation even
though the display device is not connected to the terminal through
a network, and the terminal.
[0012] In one embodiment, a display device includes: a wireless
communication unit configured to transmit/receive a packet
according to a wireless communication scheme; a storage unit
configured to store information of at least one wake-up
registration device; and a controller configured to allow the
wireless communication unit to operate in a wake-up mode when power
of the display device is turned off, wherein the wireless
communication unit outputs a first packet including information of
the display device as operating in the wake-up mode, receives a
second packet corresponding to a response of the outputted first
packet, and turns on the power of the display device on the basis
of the received second packet.
[0013] The wireless communication unit may identify a terminal that
outputs the second packet on the basis of the received second
packet, and when the identified terminal corresponds to the at
least one wake-up registration device, the power of the display
device may be turned on.
[0014] The information of the at least one wake-up registration
device may include a MAC address or a Bluetooth device address of
the at least one wake-up registration device, and the wireless
communication unit may identify the terminal on the basis of the
MAC address of the terminal or the Bluetooth device address of the
terminal, which is contained in the second packet.
[0015] The wireless communication unit may identify the terminal
when the information of the display device is contained in the
second packet.
[0016] If the information of the at least one wake-up registration
device exists in the storage unit, the controller may control the
wireless communication unit to operate in the wake-up mode when the
power of the display device is turned off.
[0017] The wireless communication unit may transmit a trigger
signal for turning on the power of the display device to the
controller on the basis of the received second packet.
[0018] The display device may further include a power supply unit
configured to supply power to the display device, wherein the
wireless communication unit may control the power supply unit to
turn on the power of the display device on the basis of the
received second packet.
[0019] The second packet may further include a specific function or
application execution request of the display device, and the
controller may execute the specific function or the application
when the power of the display device is turned on.
[0020] The display device may further include a display unit,
wherein the second packet may further include a screen mirroring
execution request, and the controller may receive image data
corresponding to a screen displayed on the terminal from the
terminal transmitting the second packet when the power of the
display device is turned on and control the display unit to display
a mirroring screen through the display unit on the basis of the
received image data.
[0021] The first packet may further include encoding information,
and the wireless communication unit may decode the received second
packet on the basis of the encoding information and turn on the
power of the display device on the basis of the decoded second
packet.
[0022] The wireless communication unit may periodically output the
first packet including the encoding information as operating in the
wake-up mode, and the encoding information may be changed every
time the first packet is outputted.
[0023] The wireless communication unit may decode the received
second packet on basis of a plurality of pieces of encoding
information contained in a plurality of first packets that are
outputted between a time point before a reference time from the
current time point and the current time point.
[0024] The wireless communication unit may include a Bluetooth
module configured to support Bluetooth low energy (BLE), and each
of the first packet and the second packet may correspond to an
advertising packet of the BLE.
[0025] In another embodiment, a terminal includes: a wireless
communication unit configured to receive a first packet outputted
from a display device of which power is turned off; a storage unit
configured to store information of at least one wake-up enabled
device; and a controller configured to identify the display device
on the basis of the received first packet, generate a second packet
including information of the terminal when the information of the
at least one wake-up enabled device includes the information of the
identified display device, and control the wireless communication
unit to output the generated second packet.
[0026] The details of one or more implementations are set forth in
the accompanying drawings and the description below. Other features
will be apparent from the description and drawings, and from the
claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0027] FIG. 1 is a block diagram illustrating a configuration of a
display device according to an embodiment.
[0028] FIG. 2 is a block diagram illustrating a remote control
device according to an embodiment.
[0029] FIG. 3 is a view illustrating an actual configuration of the
remote control device according to an embodiment.
[0030] FIG. 4 is a view of utilizing the remote control device
according to an embodiment.
[0031] FIG. 5 is a block diagram illustrating a configuration of a
terminal that is capable of being connected to the display device
of FIG. 1.
[0032] FIG. 6 is a block diagram illustrating an example of a
Bluetooth module of constituents of a communication unit provided
in the display device of FIG. 1.
[0033] FIG. 7 is a view for explaining a protocol structure in a
Bluetooth low energy technology applied to the display device
according to an embodiment.
[0034] FIG. 8 is a flowchart for explaining an example of an
operation of a display system provided in the display device of
FIG. 1.
[0035] FIG. 9 is a view illustrating an example of a structure of a
second packet outputted from a terminal of FIG. 8.
[0036] FIG. 10 is a flowchart for explaining an example of an
operation of the display system.
[0037] FIG. 11 is a view illustrating an example of a structure of
a first packet of FIG. 10, and FIG. 12 is a view illustrating an
example of a structure of a second packet of FIG. 10.
[0038] FIG. 13 is a flowchart for explaining an operation of a
controller of a Bluetooth module provided in the display device in
more detail in connection with the embodiment of FIG. 8 or 10.
[0039] FIGS. 14 and 15 are views illustrating an example of a
process in which the terminal provided in the display system is
registered as a wake-up device of the display device according to
an embodiment.
[0040] FIGS. 16 and 17 are views illustrating an example of an
operation in which the display device performs a screen mirroring
function while being woken up by the terminal provided in the
display system.
[0041] FIGS. 18 and 19 are views illustrating an example of an
operation in which the display device executes a music application
while being woken up by the terminal provided in the display
system.is a diagram illustrating an example of an outer appearance
of a vehicle having a parking assistance apparatus according to an
implementation;
DETAILED DESCRIPTION
[0042] Hereinafter, embodiments relating to the present disclosure
will be described in detail with reference to the accompanying
drawings. The suffixes "module" and "unit" for components used in
the description below are assigned or mixed in consideration of
easiness in writing the specification and do not have distinctive
meanings or roles by themselves.
[0043] A display device according to an embodiment, for example, as
an artificial display device that adds a computer supporting
function to a broadcast receiving function, may have an easy-to-use
interface such as a writing input device, a touch screen, or a
spatial remote controller as an internet function is added while
fulfilling the broadcast receiving function. Then, with the support
of a wired or wireless internet function, it is possible to perform
an e-mail, web browsing, banking, or game function in access to
internet and computers. In order for such various functions,
standardized general purpose OS may be used.
[0044] Accordingly, since various applications are freely added or
deleted on a general purpose OS kernel, a display device described
in this embodiment, for example, may perform various user-friendly
functions. The display device, in more detail, may be network TV,
HBBTV, smart TV, LED TV, OLED TV, and so on and in some cases, may
be applied to a smartphone.
[0045] FIG. 1 is a block diagram illustrating a configuration of a
display device according to an embodiment.
[0046] Referring to FIG. 1, a display device 100 may include a
broadcast reception unit 130, an external device interface unit
135, a storage unit 140, a user input interface unit 150, a
controller 170, a wireless communication unit 173, a display unit
180, an audio output unit 185, and a power supply unit 190.
[0047] The broadcast reception unit 130 may include a tuner 131, a
demodulation unit 132, and a network interface unit 133.
[0048] The tuner 131 may select a specific broadcast channel
according to a channel selection command. The tuner 131 may receive
broadcast signals for the selected specific broadcast channel.
[0049] The demodulation unit 132 may divide the received broadcast
signals into video signals, audio signals, and broadcast program
related data signals and restore the divided video signals, audio
signals, and data signals to an output available form.
[0050] The external device interface unit 135 may receive an
application or an application list in an adjacent external device
and deliver it to the controller 170 or the storage unit 140.
[0051] The external device interface unit 135 may provide a
connection path between the display device 100 and an external
device. The external device interface unit 135 may receive at least
one of image and audio output from an external device that is
wirelessly or wiredly connected to the display device 100 and
deliver it to the controller. The external device interface unit
135 may include a plurality of external input terminals. The
plurality of external input terminals may include an RGB terminal,
at least one High Definition Multimedia Interface (HDMI) terminal,
and a component terminal.
[0052] An image signal of an external device inputted through the
external device interface unit 135 may be output through the
display unit 180. A sound signal of an external device inputted
through the external device interface unit 135 may be output
through the audio output unit 185.
[0053] An external device connectable to the external device
interface unit 135 may be one of a set-top box, a Blu-ray player, a
DVD player, a game console, a sound bar, a smartphone, a PC, a USB
Memory, and a home theater system but this is just exemplary.
[0054] The network interface unit 133 may provide an interface for
connecting the display device 100 to a wired/wireless network
including internet network. The network interface unit 133 may
transmit or receive data to or from another user or another
electronic device through an accessed network or another network
linked to the accessed network.
[0055] Additionally, some content data stored in the display device
100 may be transmitted to a user or an electronic device, which is
selected from other users or other electronic devices
pre-registered in the display device 100.
[0056] The network interface unit 133 may access a predetermined
webpage through an accessed network or another network linked to
the accessed network. That is, it may transmit or receive data to
or from a corresponding server by accessing a predetermined webpage
through network.
[0057] Then, the network interface unit 133 may receive contents or
data provided from a content provider or a network operator. That
is, the network interface unit 133 may receive contents such as
movies, advertisements, games, VODs, and broadcast signals, which
are provided from a content provider or a network provider, through
network and information relating thereto.
[0058] Additionally, the network interface unit 133 may receive
firmware update information and update files provided from a
network operator and transmit data to an internet or content
provider or a network operator.
[0059] The network interface unit 133 may select and receive a
desired application among applications open to the air, through
network.
[0060] The storage unit 140 may store signal-processed image,
voice, or data signals stored by a program in order for each signal
processing and control in the controller 170.
[0061] Additionally, the storage unit 140 may perform a function
for temporarily store image, voice, or data signals output from the
external device interface unit 135 or the network interface unit
133 and may store information on a predetermined image through a
channel memory function.
[0062] The storage unit 140 may store an application or an
application list inputted from the external device interface unit
135 or the network interface unit 133.
[0063] The display device 100 may play content files (for example,
video files, still image files, music files, document files,
application files, and so on) stored in the storage unit 140 and
provide them to a user.
[0064] The user input interface unit 150 may deliver signals
inputted from a user to the controller 170 or deliver signals from
the controller 170 to a user. For example, the user input interface
unit 150 may receive or process control signals such as power
on/off, channel selection, and screen setting from the remote
control device 200 or transmit control signals from the controller
170 to the remote control device 200 according to various
communication methods such as Bluetooth, Ultra Wideband (UWB),
ZigBee, Radio Frequency (RF), and IR.
[0065] Additionally, the user input interface unit 150 may deliver,
to the controller 170, control signals inputted from local keys
(not shown) such as a power key, a channel key, a volume key, and a
setting key.
[0066] Image signals that are image-processed in the controller 170
may be inputted to the display unit 180 and displayed as an image
corresponding to corresponding image signals. Additionally, image
signals that are image-processed in the controller 170 may be
inputted to an external output device through the external device
interface unit 135.
[0067] Voice signals processed in the controller 170 may be output
to the audio output unit 185. Additionally, voice signals processed
in the controller 170 may be inputted to an external output device
through the external device interface unit 135.
[0068] Besides that, the controller 170 may control overall
operations in the display device 100.
[0069] Additionally, the controller 170 may control the display
device 100 by a user command or internal program inputted through
the user input interface unit 150 and download a desired
application or application list into the display device 100 in
access to network.
[0070] The controller 170 may output channel information selected
by a user together with processed image or voice signals through
the display unit 180 or the audio output unit 185.
[0071] Additionally, according to an external device image playback
command received through the user input interface unit 150, the
controller 170 may output image signals or voice signals of an
external device such as a camera or a camcorder, which are inputted
through the external device interface unit 135, through the display
unit 180 or the audio output unit 185.
[0072] Moreover, the controller 170 may control the display unit
180 to display images and control broadcast images inputted through
the tuner 131, external input images inputted through the external
device interface unit 135, images inputted through the network
interface unit, or images stored in the storage unit 140 to be
displayed on the display unit 180. In this case, an image displayed
on the display unit 180 may be a still image or video and also may
be a 2D image or a 3D image.
[0073] Additionally, the controller 170 may play content stored in
the display device 100, received broadcast content, and external
input content inputted from the outside, and the content may be in
various formats such as broadcast images, external input images,
audio files, still images, accessed web screens, and document
files.
[0074] The display unit 180 may convert image signals, data
signals, or OSD signals, which are processed in the controller 170,
or images signals or data signals, which are received in the
external device interface unit 135, into R, G, and B signals to
generate driving signals.
[0075] Furthermore, the display device 100 shown in FIG. 1 is just
one embodiment and thus, some of the components shown may be
integrated, added, or omitted according to the specification of the
actually implemented display device 100.
[0076] That is, if necessary, two or more components may be
integrated into one component or one component may be divided into
two or more components and configured. Additionally, a function
performed by each block is to describe an embodiment and its
specific operation or device does not limit the scope of the
present disclosure.
[0077] According to another embodiment, unlike FIG. 1, the display
device 100 may receive images through the network interface unit
133 or the external device interface unit 135 and play them without
including the tuner 131 and the demodulation unit 132.
[0078] For example, the display device 100 may be divided into an
image processing device such as a set-top box for receiving
broadcast signals or contents according to various network services
and a content playback device for playing contents inputted from
the image processing device.
[0079] In this case, an operating method of a display device
according to an embodiment described below may be performed by one
of the display device described with reference to FIG. 1, an image
processing device such as the separated set-top box, and a content
playback device including the display unit 180 and the audio output
unit 185.
[0080] Then, referring to FIGS. 2 and 3, a remote control device is
described according to an embodiment.
[0081] FIG. 2 is a block diagram illustrating a remote control
device according to an embodiment and FIG. 3 is a view illustrating
an actual configuration of a remote control device according to an
embodiment.
[0082] First, referring to FIG. 2, a remote control device 200 may
include a fingerprint recognition unit 210, a wireless
communication unit 220, a user input unit 230, a sensor unit 240,
an output unit 250, a power supply unit 260, a storage unit 270, a
controller 280, and a voice acquisition unit 290.
[0083] Referring to FIG. 2, the wireless communication unit 225
transmits/receives signals to/from an arbitrary any one of display
devices according to the above-mentioned embodiments.
[0084] The remote control device 200 may include an RF module 221
for transmitting/receiving signals to/from the display device 100
according to the RF communication standards and an IR module 223
for transmitting/receiving signals to/from the display device 100
according to the IR communication standards. Additionally, the
remote control device 200 may include a Bluetooth module 225 for
transmitting/receiving signals to/from the display device 100
according to the Bluetooth communication standards. Additionally,
the remote control device 200 may include an NFC module 227 for
transmitting/receiving signals to/from the display device 100
according to the Near Field Communication (NFC) communication
standards and a WLAN module 229 for transmitting/receiving signals
to/from the display device 100 according to the Wireless LAN (WLAN)
communication standards
[0085] Additionally, the remote control device 200 may transmit
signals containing information on a movement of the remote control
device 200 to the display device 100 through the wireless
communication unit 220.
[0086] Moreover, the remote control device 200 may receive signals
transmitted from the display device 100 through the RF module 221
and if necessary, may transmit a command on power on/off, channel
change, and volume change to the display device 100 through the IR
module 223.
[0087] The user input unit 230 may be configured with a keypad
button, a touch pad, or a touch screen. A user may manipulate the
user input unit 230 to input a command relating to the display
device 100 to the remote control device 200. If the user input unit
230 includes a hard key button, a user may input a command relating
to the display device 100 to the remote control device 200 through
the push operation of the hard key button. This will be described
with reference to FIG. 3.
[0088] Referring to FIG. 3, the remote control device 200 may
include a plurality of buttons. The plurality of buttons may
include a fingerprint recognition button 212, a power button 231, a
home button 232, a live button 233, an external input button 234, a
voice adjustment button 235, a voice recognition button 236, a
channel change button 237, a check button 238, and a back button
239.
[0089] The fingerprint recognition button 212 may be a button for
recognizing a user's fingerprint. According to an embodiment, the
fingerprint recognition button 212 may perform a push operation and
receive a push operation and a fingerprint recognition operation.
The power button 231 may be button for turning on/off the power of
the display device 100. The power button 232 may be button for
moving to the home screen of the display device 100. The live
button 233 may be a button for displaying live broadcast programs.
The external input button 234 may be button for receiving an
external input connected to the display device 100. The voice
adjustment button 235 may be button for adjusting the size of a
volume output from the display device 100. The voice recognition
button 236 may be a button for receiving user's voice and
recognizing the received voice. The channel change button 237 may
be a button for receiving broadcast signals of a specific broadcast
channel. The check button 238 may be a button for selecting a
specific function and the back button 239 may be a button for
returning to a previous screen.
[0090] Again, FIG. 2 is described.
[0091] If the user input unit 230 includes a touch screen, a user
may touch a soft key of the touch screen to input a command
relating to the display device 100 to the remote control device
200. Additionally, the user input unit 230 may include various
kinds of input means manipulated by a user, for example, a scroll
key and a jog key, and this embodiment does not limit the scope of
the present disclosure.
[0092] The sensor unit 240 may include a gyro sensor 241 or an
acceleration sensor 243 and the gyro sensor 241 may sense
information on a movement of the remote control device 200.
[0093] For example, the gyro sensor 241 may sense information on an
operation of the remote control device 200 on the basis of x, y,
and z axes and the acceleration sensor 243 may sense information on
a movement speed of the remote control device 200. Moreover, the
remote control device 200 may further include a distance
measurement sensor and sense a distance with respect to the display
unit 180 of the display device 100.
[0094] The output unit 250 may output image or voice signals
corresponding to a manipulation of the user input unit 230 or
corresponding to signals transmitted from the display device 100. A
user may recognize whether the user input unit 230 is manipulated
or the display device 100 is controlled through the output unit
250.
[0095] For example, the output unit 250 may include an LED module
251 for flashing, a vibration module 253 for generating vibration,
a sound output module 255 for outputting sound, or a display module
257 for outputting an image, if the user input unit 230 is
manipulated or signals are transmitted/received to/from the display
device 100 through the wireless communication unit 225.
[0096] Additionally, the power supply unit 260 supplies power to
the remote control device 200 and if the remote control device 200
does not move for a predetermined time, stops the power supply, so
that power waste may be reduced. The power supply unit 260 may
resume the power supply if a predetermined key provided at the
remote control device 200 is manipulated.
[0097] The storage unit 270 may store various kinds of programs and
application data necessary for a control or operation of the remote
control device 200. If the remote control device 200
transmits/receives signals wirelessly through the display device
100 and the RF module 221, the remote control device 200 and the
display device 100 transmits/receives signals through a
predetermined frequency band.
[0098] The controller 280 of the remote control device 200 may
store, in the storage unit 270, information on a frequency band for
transmitting/receiving signals to/from the display device 100
paired with the remote control device 200 and refer to it.
[0099] The controller 280 controls general matters relating to a
control of the remote control device 200. The controller 280 may
transmit a signal corresponding to a predetermined key manipulation
of the user input unit 230 or a signal corresponding to a movement
of the remote control device 200 sensed by the sensor unit 240 to
the display device 100 through the wireless communication unit
225.
[0100] Additionally, the voice acquisition unit 290 of the remote
control device 200 may obtain voice.
[0101] The voice acquisition unit 290 may include at least one
microphone 291 and obtain voice through the microphone 291.
[0102] Then, FIG. 4 is described.
[0103] FIG. 4 is a view of utilizing a remote control device
according to an embodiment.
[0104] FIG. 4A illustrates that a pointer 205 corresponding to the
remote control device 200 is displayed on the display unit 180.
[0105] A user may move or rotate the remote control device 200
vertically or horizontally. The pointer 205 displayed on the
display unit 180 of the display device 100 corresponds to a
movement of the remote control device 200. Since the corresponding
pointer 205 is moved and displayed according to a movement on a 3D
space as show in the drawing, the remote control device 200 may be
referred to as a spatial remote controller.
[0106] FIG. 4B illustrates that if a user moves the remote control
device 200, the pointer 205 displayed on the display unit 180 of
the display device 100 is moved to the left in correspondence
thereto.
[0107] Information on a movement of the remote control device 200
detected through a sensor of the remote control device 200 is
transmitted to the display device 100. The display device 100 may
calculate the coordinates of the pointer 205 from the information
on the movement of the remote control device 200. The display
device 100 may display the pointer 205 to match the calculated
coordinates.
[0108] FIG. 4C illustrates that while a specific button in the
remote control device 200 is pressed, a user moves the remote
control device 200 away from the display unit 180. Thus, a
selection area in the display unit 180 corresponding to the pointer
205 may be zoomed in and displayed largely.
[0109] On the other hand, if a user moves the remote control device
200 close to the display unit 180, a selection area in the display
unit 180 corresponding to the pointer 205 may be zoomed out and
displayed reduced.
[0110] On the other hand, if the remote control device 200 is away
from the display unit 180, a selection area may be zoomed out and
if the remote control device 200 is close to the display unit 180,
a selection area may be zoomed in.
[0111] Additionally, if a specific button in the remote control
device 200 is pressed, the recognition of a vertical or horizontal
movement may be excluded. That is, if the remote control device 200
is moved away from or close to the display unit 180, the up, down,
left, or right movement may not be recognized and only the back and
fourth movement may be recognized. While a specific button in the
remote control device 200 is not pressed, only the pointer 205 is
moved according to the up, down, left or right movement of the
remote control device 200.
[0112] Moreover, the moving speed or moving direction of the
pointer 205 may correspond to the moving speed or moving direction
of the remote control device 200.
[0113] Furthermore, a pointer in this specification means an object
displayed on the display unit 180 in correspondence to an operation
of the remote control device 200. Accordingly, besides an arrow
form displayed as the pointer 205 in the drawing, various forms of
objects are possible. For example, the above concept includes a
point, a cursor, a prompt, and a thick outline. Then, the pointer
205 may be displayed in correspondence to one point of a horizontal
axis and a vertical axis on the display unit 180 and also may be
displayed in correspondence to a plurality of points such as a line
and a surface.
[0114] FIG. 5 is a block diagram illustrating a configuration of a
terminal that is capable of being connected to the display device
of FIG. 1.
[0115] Terminals presented herein may be implemented using a
variety of different types of terminals. Examples of such terminals
include cellular phones, smart phones, laptop computers, digital
broadcast terminals, personal digital assistants (PDAs), portable
multimedia players (PMPs), navigators, slate PCs, tablet PCs, ultra
books, wearable devices (for example, smart watches, smart glasses,
head mounted displays (HMDs)), internet of things (IoT) terminal,
and the like.
[0116] By way of non-limiting example only, further description
will be made with reference to particular types of mobile
terminals. However, such teachings apply equally to other types of
terminals, such as those types noted above. In addition, these
teachings may also be applied to stationary terminals such as
desktop computers, and the like.
[0117] Referring to FIG. 5, the terminal 300 is shown having
components such as a communication unit 310, an input unit 320, a
sensing unit 340, an output unit 350, an interface unit 360, a
memory 370, a controller 380, and a power supply unit 390. It is
understood that implementing all of the illustrated components is
not a requirement, and that greater or fewer components may
alternatively be implemented.
[0118] The communication unit 310 typically includes one or more
modules which permit communications such as wireless communications
between the terminal 300 and a wireless communication system,
communications between the terminal 300 and another terminal,
communications between the terminal 300 and an external server.
Further, the communication unit 310 typically includes one or more
modules which connect the terminal 300 to one or more networks. To
facilitate such communications, the communication unit 310 includes
one or more of a broadcast receiving module 311, a mobile
communication module 312, a wireless Internet module 313, a
short-range communication module 314, and a location information
module 315.
[0119] Among these, the short-range communication module 314 is
configured to facilitate short-range communications. Suitable
technologies for implementing such short-range communications
include Bluetooth.TM., Radio Frequency IDentification (RFID),
Infrared Data Association (IrDA), Ultra-WideBand (UWB), ZigBee,
Near Field Communication (NFC), Wireless-Fidelity (Wi-Fi), Wi-Fi
Direct, Wireless USB (Wireless Universal Serial Bus), and the like.
The short-range communication module 314 in general supports
wireless communications between the terminal 300 and a wireless
communication system, communications between the terminal 300 and
another terminal 300, or communications between the terminal and a
network where another terminal 300 (or an external server) is
located, via wireless area networks. One example of the wireless
area networks is a wireless personal area networks.
[0120] Particularly, the short-range communication module 314
provided in the terminal 300 according to an embodiment may support
a Bluetooth low energy (BLE) scheme. Since the basic contents of
the BLE scheme are well known, detailed descriptions thereof will
be omitted.
[0121] The input unit 320 includes a camera 321 for obtaining
images or video, a microphone 322, which is one type of audio input
device for inputting an audio signal, and a user input unit 323
(for example, a touch key, a push key, a mechanical key, a soft
key, and the like) for allowing a user to input information. Data
(for example, audio, video, image, and the like) is obtained by the
input unit 320 and may be analyzed and processed by controller 380
according to device parameters, user commands, and combinations
thereof.
[0122] The sensing unit 340 is typically implemented using one or
more sensors configured to sense internal information of the mobile
terminal, the surrounding environment of the mobile terminal, user
information, and the like. For example, the sensing unit 340 may
include at least one of a proximity sensor 341, illumination sensor
342, a touch sensor, an acceleration sensor, a magnetic sensor, a
G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an
infrared (IR) sensor, a finger scan sensor, a ultrasonic sensor, an
optical sensor (for example, camera 321), a microphone 322, a
battery gauge, an environment sensor (for example, a barometer, a
hygrometer, a thermometer, a radiation detection sensor, a thermal
sensor, and a gas sensor, among others), and a chemical sensor (for
example, an electronic nose, a health care sensor, a biometric
sensor, and the like). The terminal 300 may be configured to
utilize information obtained from sensing unit 340, and in
particular, information obtained from one or more sensors of the
sensing unit 340, and combinations thereof.
[0123] The output unit 350 is typically configured to output
various types of information, such as audio, video, tactile output,
and the like. The output unit 350 is shown having a display unit
351, an audio output module 352, a haptic module 353, and an
optical output module 354.
[0124] The display unit 351 may have an inter-layered structure or
an integrated structure with a touch sensor in order to facilitate
a touch screen. The touch screen may provide an output interface
between the terminal 300 and a user, as well as function as the
user input unit 323 which provides an input interface between the
terminal 300 and the user.
[0125] The interface unit 360 serves as an interface with various
types of external devices that may be coupled to the terminal 300.
The interface unit 360, for example, may include any of wired or
wireless ports, external power supply ports, wired or wireless data
ports, memory card ports, ports for connecting a device having an
identification module, audio input/output (I/O) ports, video I/O
ports, earphone ports, and the like. In some cases, the terminal
300 may perform assorted control functions associated with a
connected external device, in response to the external device being
connected to the interface unit 360.
[0126] The memory 370 is typically implemented to store data to
support various functions or features of the terminal 300. For
instance, the memory 370 may be configured to store application
programs executed in the terminal 300, data or instructions for
operations of the terminal 300, and the like. Some of these
application programs may be downloaded from an external server via
wireless communication. Other application programs may be installed
within the terminal 300 at time of manufacturing or shipping, which
is typically the case for basic functions of the terminal 300 (for
example, receiving a call, placing a call, receiving a message,
sending a message, and the like). It is common for application
programs to be stored in the memory 370, installed in the terminal
300, and executed by the controller 380 to perform an operation (or
function) for the terminal 300.
[0127] The controller 380 typically functions to control overall
operation of the terminal 300, in addition to the operations
associated with the application programs. The controller 380 may
provide or process information or functions appropriate for a user
by processing signals, data, information and the like, which are
input or output by the various components depicted in FIG. 5, or
activating application programs stored in the memory 370. As one
example, the controller 380 controls some or all of the components
illustrated in FIG. 5 according to the execution of an application
program that have been stored in the memory 370.
[0128] The power supply unit 390 may be configured to receive
external power or provide internal power in order to supply
appropriate power required for operating elements and components
included in the terminal 300. The power supply unit 390 may include
a battery, and the battery may be configured to be embedded in the
terminal body, or configured to be detachable from the terminal
body.
[0129] FIG. 6 is a block diagram illustrating an example of a
Bluetooth module of constituents of the communication unit provided
in the display device of FIG. 1, and FIG. 7 is a view for
explaining a protocol structure in a Bluetooth low energy
technology applied to the display device according to an
embodiment.
[0130] Referring to FIG. 6, a communication unit 160 of the display
device 100 may include a Bluetooth module 162 which supports a
Bluetooth communication technology. That is, the communication unit
160 according to an embodiment may correspond to a wireless
communication unit.
[0131] The Bluetooth module 162 may include an RF transceiver 163,
a memory, and a controller 165. Since the components of the
Bluetooth module 162 of FIG. 6 are not limited thereto, the
Bluetooth module 162 may further include more components according
to an embodiment.
[0132] The RF transceiver 163 may transmit a signal according to
the Bluetooth communication scheme or receive a signal from the
outside.
[0133] The memory 164 may store data, information, and/or firmware
that are required for an operation of the Bluetooth module 162. The
memory 164 of FIG. 6 may be understood as including an internal
memory of the controller 165.
[0134] The controller 165 may control an overall operation of the
Bluetooth module 162. The controller 165 may be connected to the
controller 170 of the display device 100 through a host controller
interface (HCI) 161 to transmit/receive various signals and/or a
variety of information.
[0135] Particularly, according to an embodiment, the Bluetooth
module 162 may operate after the power of the display device 100 is
turned off. The controller 170 of the display device 100 may
control the Bluetooth module 162 so that the Bluetooth module 162
is switched to operate in a wake-up mode when the power of the
display device 100 is turned off. The wake-up mode of the Bluetooth
module 162 will be described later in more detail with reference to
FIG. 13.
[0136] The Bluetooth module 162 provided in the display device 100
may support a BLE technology.
[0137] Referring to FIG. 7, a host may correspond to the controller
170 of the display device 100, and the controller may correspond to
the Bluetooth module 162.
[0138] For compatibility with the existing Bluetooth technology, an
RF, a host controller interface (HCI), and a logical link control
and adaptation protocol (L2CAP) layer may be the same as existing
ones, and some functions for low energy technology may be added.
For example, the RF may correspond to the RF transceiver 163 of
FIG. 6.
[0139] The link layer (LL) may be composed of a combination of
hardware and software. For example, the LL may correspond to a
combination of the controller 165 and the firmware. The LL may
serve as a baseband (BB) and a link manager (LM) of the existing
Bluetooth.
[0140] Particularly, according to an embodiment, the LL may perform
an overall operation for the wake-up mode.
[0141] Although a security function is performed in a generic
access profile (GAP) layer in the existing Bluetooth, the security
function may be strengthened by forming a security manager (SM) in
the low energy technology. In wireless communication environments,
a distribution key scheme is used for identification and encoding,
and security capability of a key depends on performance of an
algorithm in a distributing device.
[0142] The GAP layer may be a layer that is newly implemented for a
BLE technology different from the existing Bluetooth. The GAP layer
is used to control how role selection and multi-profile operations
occur for communication between the low energy devices and also is
mainly used for device search, connection occurrence, and security
procedures.
[0143] There is an attribute protocol as a newly added layer. The
attribute protocol is used to communicate with a server and a
client and has an attribute handle that is used by the client to
access attributes in the server. For example, protocol operation
commands include "request", "response", "command", "notification",
and the like. A genetic attribute profile (GATT) layer is also a
newly added layer. The GATT layer uses an attribute protocol to
define service frameworks, service formats, and procedures. The
procedures define setting of discovering, reading, writing, notify,
and indicating characteristics.
[0144] In this embodiment, when the power of the display device 100
is turned off, the controller 170 may control the Bluetooth module
162 so that the Bluetooth module 162 operates in the wake-up mode.
In this case, the Bluetooth module 162 may continuously operate
even when the power of the display device 100 is turned off. That
is, in the protocol structure of FIG. 7, when the power of the
display device 100 is turned off, the controller may continuously
operate.
[0145] Hereinafter, specific embodiments of the present disclosure
will be described.
[0146] FIG. 8 is a flowchart for explaining an example of an
operation of the display system provided in the display device of
FIG. 1.
[0147] In the following descriptions of this specification, the
packet outputted by the display device 100 and the terminal 300 may
correspond to an advertising packet by the BLE technology. In
general, the advertising packet may be used to notify that a device
for outputting the advertising packet exists to other peripheral
devices so as to connect the device to the other peripheral
devices. The advertising packet may be broadcasted to the periphery
thereof to allow a plurality of peripheral devices disposed around
the corresponding device to receive the advertising packet.
[0148] However, the packet outputted according to an embodiment is
not limited to only the advertising packet by the BLE technology,
but may include various kinds of packets having similar uses.
[0149] Referring to FIG. 8, when the power of the display device
100 is turned off (S100), the display device 100 may output a first
packet (S101).
[0150] Particularly, when the power of the display device 100 is
turned off, the controller 170 of the display device 100 may
control the Bluetooth module 162 so that the Bluetooth module 162
is switched in operation mode to operate in the wake-up mode. The
wake-up mode may represent a mode in which the Bluetooth module 162
periodically broadcasts the advertising packet and receives a
packet outputted in response to a wake-up request of the display
device 100 from a specific terminal receiving the broadcasted
advertising packet to turn on (wake up) the power of the display
device 100.
[0151] According to an embodiment, the controller 170 may determine
whether the wake-up mode is switched based on whether a registered
(or permitted) wake-up registration device exists to turn on the
power of the display device 100. For example, when information of
the terminal, which is registered to turn on the power of the
display device 100, does not exist, the controller 170 may not
switch the operation mode of the Bluetooth module 162 into the
wake-up mode even though the power of the display device 100 is
turned off. The information of the registered terminal may include
at least one of a MAC address and a Bluetooth device address of the
terminal.
[0152] The first packet may include a variety of information for
identification of the display device 100. For example, the first
packet may include the MAC address and/or the Bluetooth device
address of the display device 100.
[0153] The controller 165 of the Bluetooth module 162 may control
the RF transceiver 163 to broadcast the first packet. A
transmission distance of the first packet broadcasted by the RF
transceiver 163 may be within about 40 m, but this is not limited
thereto.
[0154] The terminal 300 may receive the first packet outputted
(broadcasted) from the display device 100 (S102). For example, when
a distance between the terminal 300 and the display device 100 is
less than the transmission distance of the first packet, the
terminal 300 may receive the first packet.
[0155] The terminal 300 may identify the display device 100 on the
basis of the received first packet (S103).
[0156] Particularly, the terminal 300 may identify the display
device 100 by using the MAC address or the Bluetooth device address
of the display device 100, which are included in the first
packet.
[0157] The terminal 300 may determine whether the identified
display device 100 is a wake-up enabled device (S104).
[0158] The wake-up enabled device represents a device that is
registered in the terminal 300 so that a specific packet is
outputted to turn on the power even though the terminal 300 is not
connected. The terminal 300 may store information of at least one
wake-up enabled device. The information of the at least one wake-up
enabled device may include a MAC address and/or a Bluetooth device
address of the corresponding device.
[0159] When the identified display device 100 corresponds to the
wake-up enabled device, the terminal 300 may display a wake-up list
including the information of the display device 100 on the display
unit 351 (S105).
[0160] The wake-up list may include information of at least one
device corresponding to a wake-up enabled device of a plurality of
devices existing within a predetermined distance from the terminal
300. The plurality of devices existing within the predetermined
distance may represent that the first packet outputted from each of
the plurality of devices is received to the terminal 300.
[0161] The terminal 300 may receive a wake-up request about the
display device 100 on the basis of the displayed wake-up list
(S106).
[0162] For example, the controller 380 of the terminal 300 may
receive an input for selecting at least one device included in the
wake-up list displayed through the display unit 351 to wake up the
display device 100, thereby receiving the wake-up request.
[0163] According to an embodiment, the controller 380 may receive a
request for executing a specific function (or a specific
application, and the like) of the display device 100 together with
the wake-up of the display device 100. For example, the controller
380 may receive a request for executing the wake-up and the screen
mirroring of the display device 100. Related examples will be
described in more detail with reference to FIGS. 16 to 19.
[0164] The terminal 300 may generate a second packet in response to
the received wake-up request to output the generated second packet
(S107).
[0165] For example, the second packet may include at least one of a
MAC address of the terminal 300, a Bluetooth device address of the
display device 100, and a Bluetooth device address of the terminal
300.
[0166] According to an embodiment, when the terminal 300 receives
the wake-up and screen mirroring execution request, the second
packet may further include information corresponding to the screen
mirroring execution request.
[0167] The second packet may also correspond to an advertising
packet, but is not limited thereto.
[0168] The display device 100 may receive the second packet
outputted from the terminal 300 (S108) to identify the terminal 300
on the basis of the received second packet (S109).
[0169] When the Bluetooth device address of the display device 100
is included in the second packet received through the RF
transceiver 163, the controller 165 may identify the terminal 300
on the basis of the MAC address or the Bluetooth device address of
the terminal 300, which are included in the second packet.
[0170] When the identified terminal 300 corresponds to the wake-up
registration device (YES in operation S110), the power of the
display device 100 may be turned on (woken up) (S111).
[0171] When the identified terminal 300 is the wake-up registration
device, the controller 165 may transmit a signal to the controller
170 or the power supply unit 190 to turn on the power of the
display device 100.
[0172] According to an embodiment, when the information about the
screen mirroring execution request is further included in the
second packet, the display device 100 may execute the screen
mirroring without a separate additional input after the power of
the display device 100 is turned on.
[0173] FIG. 9 is a view illustrating an example of a structure of
the second packet outputted from the terminal of FIG. 8.
[0174] Referring to FIG. 9, when the second packet corresponds to
the advertising packet of the BLE technology, a protocol data unit
(PDU) included in the second packet may have a structure as
illustrated in FIG. 9.
[0175] A head H of the PDU may include information about a type of
second packet (connectability and whether the packet is to be
received) and a length of a payload. An advertising address
ADV_ADDR may include the MAC address of the device that has output
the second packet, i.e., the terminal 300.
[0176] Advertising data ADV_DATA included in the PDU of the second
packet may include information about a Bluetooth device address
BD_ADDR1 of the display device 100 that outputs the first packet, a
Bluetooth device address BD_ADDR2 of the terminal 300 that outputs
the second packet, and a request (or a command) received in the
operation S106 of FIG. 8.
[0177] When the Bluetooth device address BD_ADDR1 of the display
device 100 is included in the second packet, the display device 100
receiving the second packet may identify the terminal 300, which
outputs the second packet, on the basis of at least one of the
advertising data ADV_DATA and the Bluetooth device address
BD_ADDR2.
[0178] When the identified terminal 300 corresponds to the wake-up
registration device, the display device 100 may perform an
operation corresponding to a request CMD included in the second
packet. For example, when the request CMD is the wake-up request,
the power of the display device 100 may be turned on. For another
example, when the request CMD is the wake-up and screen mirroring
execution request, the screen mirroring function may be executed
while the power of the display device 100 is turned on.
[0179] According to the embodiment described with reference to
FIGS. 8 and 9, the display device 100 may receive the wake-up
request from the peripheral terminal 300 through the BLE technology
even though the power of the display device 100 is turned off and
may turn on the power of the display device 100 in response to the
received request. Thus, the user may conveniently turn on the
display device 100 to utilize a desired function or application
through the terminal 300.
[0180] According to the embodiment described with reference to
FIGS. 8 and 9, since the second packet outputted from the terminal
300 is broadcasted, other device except for the display device 100
may receive the second packet. In this case, the other device
receiving the second packet may reproduce the second packet as it
is to output the reproduced second packet, and the display device
100 may receive the second packet outputted from the other device
to mistakenly recognize the second packet as the packet outputted
from the terminal 300 that is the wake-up registration device and
thereby to cause a mistake such as the turn-on of the display
device 100.
[0181] An additional embodiment for solving the above-described
mistake will be described with reference to FIGS. 10 to 12.
[0182] FIG. 10 is a flowchart for explaining an example of an
operation of the display system. FIG. 11 is a view illustrating an
example of a structure of the first packet of FIG. 10, and FIG. 12
is a view illustrating an example of a structure of the second
packet of FIG. 10.
[0183] Referring to FIG. 10, when the power of the display device
100 is turned off (S200), the display device 100 may output
(broadcast) a first packet including encoding information
(S201).
[0184] Unlike the first packet of FIG. 8, the first packet of FIG.
10 may include the encoding information. For example, the encoding
information may correspond to information (e.g., a link key and the
like) that is preset between the display device 100 and the
terminal 300 or predefined information and may include a specific
time-variable value.
[0185] Referring to FIG. 11, a Bluetooth device address BD_ADDR1
and encoding information ENC_INFO of the display device 100 may be
included in the advertising data ADV_DATA of the PDU of the first
packet. The encoding information ENC_INFO may include a value that
changes every time the first packet is transmitted or may include
information (e.g., the link key and the like) that is preset
between the display device 100 and the terminal 300. The link key
may be information set between the display device 100 and the
terminal 300 as information used in an authentication process when
the display device 100 is connected to the terminal 300.
[0186] According to an embodiment, the advertising data ADV_DATA of
the first packet may further include additional information such as
a power state of the display device 100 and information about a
supportable function or application.
[0187] The description will be made again with reference to FIG.
10.
[0188] Since the operations S202 to S206 are substantially the same
as the operations S102 to S106, their detailed descriptions will be
omitted.
[0189] When the wake-up request about the display device 100 is
received, the terminal 300 may generate a second packet, of which
at least a portion is encoded, by using encoding information
(S207).
[0190] That is, unlike the second packet of FIGS. 8 and 9, at least
a portion of the second packet of FIG. 10 may have been encoded.
The encoding may represent a case in which some field values of the
second packet are encoded by using the encoding information or a
case in which at least a portion of the second packet is changed by
a predetermined encoding method such as a case in which the
encoding information is inserted between some field values of the
second packet to change the second packet.
[0191] Referring to FIG. 12, the terminal 300 may generate the
second packet in which at least one of the Bluetooth device address
of the display device 100, the Bluetooth device address of the
terminal 300, and the request (or the command) is encoded based on
the encoding information. Referring to FIG. 12, the advertising
data ADV_DATA may include at least one of the encoded Bluetooth
device address ENC_BD_ADDR1 of the display device 100, the encoded
Bluetooth device address ENC_BD_ADDR2 of the terminal 300, and the
encoded request (or command) ENC_CMD.
[0192] The encoding may represent a case in which at least a
portion of the advertising data ADV_DATA is encoded (e.g., an XOR
operation, etc.) by using the encoding information. Alternatively,
the encoding may represent a case in which at least a portion of
the encoding information is inserted in a predetermined position of
the advertising data ADV_DATA. That is, the encoding represents
that at least a portion of the advertising data ADV_DATA is
changed. Since the encoding method is defined between the display
device 100 and the terminal 300 that is the wake-up registration
device of the display device 100, other devices may not have
information about the encoding method. Thus, security for the
second packet outputted by the terminal 300 may be improved.
[0193] Referring again to FIG. 10, the display device 100 may
receive the second packet outputted from the terminal (S209),
decode the received second packet, and identify the terminal 300 on
the basis of the decoded second packet (S210).
[0194] The display device 100 may decode the second packet on the
basis of the encoding information included in the first packet
outputted in the operation S201. According to an embodiment, when
the first packet is periodically outputted, and the encoding
information is changed every time the first packet is outputted,
the display device 100 may perform the decoding by using each of a
plurality of pieces of encoding information included in the
plurality of first packets outputted between a time point before a
reference time from the current time point and the current time
point.
[0195] Since the operations S211 and S212 are substantially the
same as the operations S110 to S111, their detailed descriptions
will be omitted.
[0196] According to the embodiment described with reference to
FIGS. 10 to 12, since the second packet outputted from the terminal
300 is encoded according to the encoding method that is set between
the display device 100 and the terminal 300, even though the other
device receives the second packet, data included in the second
packet may not be accurately acquired. Thus, the security between
the display device 100 and the terminal 300 may be improved.
[0197] FIG. 13 is a flowchart for explaining an operation of the
controller of the Bluetooth module provided in the display device
in more detail in connection with the embodiment of FIG. 8 or
10.
[0198] Referring to FIG. 13, the controller 165 of the Bluetooth
module 162 may switch the operation mode of the Bluetooth module
162 into the wake-up mode when the power of the display device 100
is turned off (S401) and control the RF transceiver 163 to
periodically output the first packet (S402). As described above,
the wake-up mode represents a mode in which the Bluetooth module
162 periodically broadcasts the advertising packet even though the
power of the display device 100 is turned off, receives a packet
corresponding to a response of the broadcasted advertising packet
to identify a transmission device of the received packet, and turns
on the power of the display device 100 on the basis of the
identified transmission device.
[0199] The display device 100 may receive a second packet
corresponding to a response of the outputted first packet to
identify the terminal 300 on the basis of the received second
packet (S403 & S404).
[0200] When the identified terminal 300 corresponds to the wake-up
registration device of the display device (YES in operation S405),
the controller 165 may transmit a trigger signal for the wake-up
(turn-on) of the display device 100 to the controller 170. The
trigger signal may be transmitted to the controller 170 through the
HCI 161 of FIG. 6. According to an embodiment, the controller 165
may transmit a signal for controlling the power supply unit 190 of
the display device 100 to the power supply unit 190.
[0201] According to the above-described embodiments, when the power
of the display device 100 is turned off, the wake-up request of the
display device 100 may be received from an external terminal while
minimizing power consumption by using the Bluetooth module 162
supporting the BLE technology. The display device 100 may be
conveniently turned on by using the portable terminal 300 without
having a separate remote controller.
[0202] FIGS. 14 and 15 are views illustrating an example of a
process in which the terminal provided in the display system is
registered as the wake-up device of the display device according to
an embodiment.
[0203] Referring to FIG. 14, when the display device 100 is
initially connected to the terminal 300 or when a user of the
terminal 300 intends to register the terminal 300 as the wake-up
registration device of the display device 100, the controller 170
of the display device 100 may display a confirmation window 410
indicating whether to register the terminal 300 as the wake-up
registration device through the display unit 180.
[0204] When the user selects the accept button 411 provided on the
confirmation window 410, the display device 100 may register the
terminal 300 as the wake-up registration device and store
identification information (e.g., the MAC address and the like) of
the terminal 300 in the storage unit 140.
[0205] Referring to FIG. 15, a setting screen 430, which is related
to the wake-up mode, of setting screens of the display device 100
may be displayed. The setting screen 430 may include a Bluetooth
access setting item 431 for setting whether the display device 100
is accessible through Bluetooth, e.g., the BLE technology, a button
432 for activating/inactivating the Bluetooth access setting item
431, and a reset item 433 for deleting the information of the
wake-up registration device. When the button 432 is selected, the
activation/inactivation of the Bluetooth access setting item 431
may be switched. When the reset item 433 is included, the
controller 170 may delete the information of the wake-up
registration device, which is stored in the storage unit 140.
[0206] Hereinafter, embodiments in which an additional function or
applicator is executed while the power of the display device 100 is
turned on by the second packet outputted from the terminal 300 will
be described with reference to FIGS. 16 to 19.
[0207] FIGS. 16 and 17 are views illustrating an example of an
operation in which the display device performs the screen mirroring
function while being woken up by the terminal provided in the
display system.
[0208] Referring to FIG. 16, the display device 100 of which the
power is turned off may periodically output a first packet P1
through the Bluetooth module 162. The first packet P1 may
correspond to the first packet that is described with reference to
FIG. 8 or 10.
[0209] The terminal 300 may receive the first packet to identify
the display device 100. Here, when the identified display device
100 is the wake-up enabled device, the terminal 300 may display a
wake-up list including the information of the display device
100.
[0210] The terminal 300 may receive a wake-up and screen mirroring
execution request of the display device 100 from the user. The
screen mirroring function represents a function of display a screen
500, which is displayed on the display unit 351 of the terminal
300, on a display unit 180 of the display device 100 in the same
manner.
[0211] The terminal 300 may output a second packet P2 including
information about the wake-up and mirroring execution request. The
second packet P2 may correspond to the second packet that is
described with reference to FIG. 9 or 12.
[0212] Referring to FIG. 17, the display device 100 may receive the
second packet P2 outputted from the terminal 300 to identify the
terminal 300 on the basis of the received second packet P2. When
the identified terminal 300 corresponds to the wake-up registration
device, the display device 100 may execute the screen mirroring
while the power of the display device 100 is turned on (woken up).
As the screen mirroring is executed, a mirroring screen 501 that is
the same as the screen 500 displayed on the terminal 300 may be
displayed on the display unit 180. For this, the display unit 100
and the terminal 300 may be connected to each other in a separate
wireless communication scheme (e.g., Wi-Fi direction, etc.). The
display device 100 may receive image data corresponding to the
screen 500 displayed on the terminal 300 from the terminal 300 to
display the mirroring screen 501 on the basis of the received image
data.
[0213] FIGS. 18 and 19 are views illustrating an example of an
operation in which the display device executes a music application
while being woken up by the terminal provided in the display
system.
[0214] Referring to FIG. 18, the terminal 300 may receive a wake-up
and music application execution request of the display device 100
from the user. The music application execution request may
correspond to a request for executing a music application of the
display device 100 so that the same music as the music being
executed and played back by the terminal 300 is played.
[0215] The terminal 300 may output a second packet P2 including
information about the received wake-up and music application
execution request.
[0216] Referring to FIG. 19, the display device 100 may receive the
second packet P2 to identify the terminal 300 on the basis of the
received second packet P2. When the identified terminal 300
corresponds to the wake-up registration device, the display device
100 may execute the music application while the power of the
display device 100 is turned on (woken up). According to an
embodiment, when the power of the display device 100 is turned on,
the display device 100 may display an execution screen 511 of the
music application on a screen 512 of a channel that is being
watched recently. As the music application is executed, the display
device 100 may play the same music as the music being played back
by the terminal 300.
[0217] Although not shown, when the terminal 300 receives the first
packet from the display device 100, an installation screen of an
application related to the display device 100 may be automatically
displayed, or a registration process between the application and
the display device 100 may be automatically executed.
[0218] Alternatively, when the terminal 300 receives the first
packet from the display device 100 at the same time as an alarm
time set in the terminal 300 or within a reference range, the
terminal 300 may automatically output the second packet including
the wake-up request without receiving the wake-up request of the
display device 100 from the user.
[0219] That is, the terminal 300 may conveniently turn on the power
of the display device 100 through a short-range wireless
communication scheme such as the BLE technology and also control
the display device 100 to additionally execute a desired function
or application while turning on the power of the display device
100, thereby simplifying the procedure for executing the
corresponding function or application. Therefore, user's
convenience may be improved.
[0220] According to the embodiment, event through the power of the
display device is turned off, since the user is capable of turning
on the power of the display device through the terminal, which is
hold at any time by the user, the use convenience of the display
device may be improved.
[0221] Also, since the user is capable of turning on the power of
the display device and also requesting the additional function or
the execution of the application at one time, the number of
manipulation performed by the user may be reduced to improve the
convenience.
[0222] In addition, when the power of the display device is turned
on, since the power of the display device is turned on by receiving
the wake-up request from the terminal through the Bluetooth
technology, the power consumption of the display device may be
reduced.
[0223] Also, since the terminal outputs the second packet that is
encoded based on the encoding information included in the first
packet outputted from the display device, the security between the
display device and the terminal may be improved.
[0224] The above-described embodiments may be implemented as a
computer-readable code on a computer-readable medium in which a
program is stored. The computer readable recording medium includes
all types of recording devices in which data readable by a computer
system is stored. Examples of the computer-readable recording
medium include hard disk drives (HDD), solid state disks (SSD),
silicon disk drives (SDD), read only memories (ROMs), random access
memories (RAMs), compact disc read only memories (CD-ROMs),
magnetic tapes, floppy discs, and optical data storage devices.
Also, the computer may include a controller of the display device.
Thus, the detailed description is intended to be illustrative, but
not limiting in all aspects. It is intended that the scope of the
present invention should be determined by the rational
interpretation of the claims as set forth, and the modifications
and variations of the present invention come within the scope of
the appended claims and their equivalents.
* * * * *