U.S. patent application number 10/364794 was filed with the patent office on 2005-04-28 for communication system for vehicle.
This patent application is currently assigned to Johnson Controls Technology Company. Invention is credited to Buege, Robert F., Dykema, Kurt A., Geerlings, Steven L., Witkowski, Todd R., Zeinstra, Mark L..
Application Number | 20050090279 10/364794 |
Document ID | / |
Family ID | 22470673 |
Filed Date | 2005-04-28 |
United States Patent
Application |
20050090279 |
Kind Code |
A9 |
Witkowski, Todd R. ; et
al. |
April 28, 2005 |
Communication system for vehicle
Abstract
A system for communicating information includes a transceiver
provided within a vehicle that is configured for wireless
communication with a cellular phone and with a portable computing
device. The wireless communication between the transceiver and the
cellular phone utilizes a Bluetooth communications protocol.
Inventors: |
Witkowski, Todd R.;
(Zeeland, MI) ; Dykema, Kurt A.; (Holland, MI)
; Geerlings, Steven L.; (Zeeland, MI) ; Zeinstra,
Mark L.; (Holland, MI) ; Buege, Robert F.;
(Lowell, MI) |
Correspondence
Address: |
FOLEY & LARDNER
777 EAST WISCONSIN AVENUE
SUITE 3800
MILWAUKEE
WI
53202-5308
US
|
Assignee: |
Johnson Controls Technology
Company
|
Prior
Publication: |
|
Document Identifier |
Publication Date |
|
US 0228879 A1 |
December 11, 2003 |
|
|
Family ID: |
22470673 |
Appl. No.: |
10/364794 |
Filed: |
February 11, 2003 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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10364794 |
Feb 11, 2003 |
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10127982 |
Apr 23, 2002 |
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10127982 |
Apr 23, 2002 |
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09979199 |
Apr 29, 2002 |
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09979199 |
Apr 29, 2002 |
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PCT/US00/14692 |
May 26, 2000 |
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60135979 |
May 26, 1999 |
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Current U.S.
Class: |
455/550.1 ;
455/575.9; 455/90.2 |
Current CPC
Class: |
H04B 1/3822 20130101;
H04L 67/14 20130101; G07C 5/008 20130101; H04M 1/6041 20130101;
H04M 2250/02 20130101; H04W 84/18 20130101; H04W 4/48 20180201;
H04W 4/44 20180201; H04W 88/04 20130101; H04B 7/2609 20130101; H04L
67/12 20130101; H04B 7/26 20130101; G06K 7/10386 20130101; H04M
1/6091 20130101; H04L 29/06 20130101; H04W 88/06 20130101; H04L
69/329 20130101; H04W 4/80 20180201 |
Class at
Publication: |
455/550.1 ;
455/575.9; 455/090.2 |
International
Class: |
H04M 001/00 |
Claims
What is claimed is:
1. A system for communicating information comprising: a transceiver
provided within a vehicle and configured for wireless communication
with a cellular phone and with a portable computing device; wherein
the wireless communication between the transceiver and the cellular
phone utilizes a Bluetooth communications protocol.
2. The system of claim 1, wherein the transceiver is coupled to at
least a portion of a vehicle.
3. The system of claim 1, wherein information is communicated from
the cellular phone to the transceiver and the transceiver
communicates at least a portion of the information to the portable
computing device.
4. The system of claim 3, wherein the information comprises at
least one of a facsimile transmission and an electronic mail
message.
5. The system of claim 1, wherein information is transmitted from
the computing device to the transceiver.
6. The system of claim 5, at least a portion of the information is
transmitted from the transceiver to the cellular phone.
7. The system of claim 5, wherein the information comprises a phone
number.
8. The system of claim 1, wherein the wireless communication
between the transceiver and the portable computing device utilizes
a Bluetooth communications protocol.
9. The system of claim 1, wherein the wireless communication
between the transceiver and the portable computing device utilizes
an infrared communications link.
10. The system of claim 1, wherein the portable computing device is
a laptop computer.
11. The system of claim 1, wherein the portable computing device is
a hand-held computing device.
12. The system of claim 1, wherein a communications link is
automatically established when the cellular phone comes within a
predetermined distance of the transceiver.
13. The system of claim 1, further comprising a microphone coupled
to the transceiver, wherein sounds input at the microphone may be
transmitted from the transceiver to the cellular phone.
14. The system of claim 1, wherein the transceiver is a trainable
transceiver.
15. A wireless communications system for use in a vehicle
comprising: a transceiver provided within a vehicle; a cellular
phone in wireless communication with the transceiver, the wireless
communication utilizing a Bluetooth communications protocol; and a
computing device in wireless communication with the transceiver;
wherein information received by the cellular phone is communicated
to the transceiver and at least a portion of the information is
communicated from the transceiver to the computing device.
16. The communications system of claim 15, wherein the computing
device is at least one of a laptop computer and a hand-held
computing device.
17. The communications system of claim 15, wherein the information
is selected from a facsimile transmission and an electronic mail
message.
18. The communications system of claim 15, wherein the computing
device communicates with the transceiver using a Bluetooth
communications protocol.
19. The communications system of claim 15, wherein the computing
device communicates with the transceiver using an infrared
communications link.
20. The communications system of claim 15, wherein the transceiver
is a trainable transceiver configured to interface with a garage
door opener system.
21. A communications system for a vehicle, the communications
system comprising: means for receiving signals transmitted by a
cellular phone, the signals being transmitted in accordance with a
Bluetooth communications standard and including information; and
means for transmitting signals wirelessly to a computing device;
wherein the signals transmitted to the computing device include at
least a portion of the information; and wherein at least one of the
means for receiving signals and the means for transmitting signals
are provided within a vehicle.
22. The communications system of claim 21, wherein the means for
receiving signals and the means for transmitting signals are
included in a transceiver coupled to a vehicle.
23. The communications system of claim 21, wherein the means for
transmitting signals communicates with the computing device using a
Bluetooth communications protocol.
24. The communications system of claim 21, wherein the means for
transmitting signals communicates with the computing device using
an infrared communications link.
25. The communications system of claim 21, wherein the information
comprises at least one of a facsimile transmission and an
electronic mail message.
26. The communications system of claim 21, further comprising means
for receiving information from the computing device and means for
transmitting at least a portion of the information received from
the computing device to the cellular phone.
27. The communications system of claim 26, wherein the computing
device is one of a laptop computer and a hand-held computing
device.
28. A method of transferring information to a computing device
comprising: receiving information at a transceiver provided in a
vehicle, the information transmitted from a cellular phone using a
Bluetooth communications protocol; and communicating at least a
portion of the information from the transceiver to the computing
device using a wireless communications link.
29. The method of claim 28, wherein the step of receiving
information at the transceiver comprises receiving at least one of
a facsimile transmission and an electronic mail message.
30. The method of claim 28, wherein the computing device is at
least one of a laptop computer and a hand-held computing
device.
31. The method of claim 28, wherein the wireless communications
link is an infrared communications link.
32. The method of claim 28, wherein the wireless communications
link utilizes a Bluetooth communications protocol.
33. The method of claim 28, wherein the transceiver is a trainable
transceiver that is also configured to transmit signals to at least
one of a garage door opener system and a home security system.
Description
CROSS-REFERENCE TO RELATED PATENT APPLICATIONS
[0001] This application is a continuation of U.S. patent
application Ser. No. 10/127,982, filed Apr. 23, 2002, which is a
continuation of U.S. patent application Ser. No. 09/979,199, filed
Nov. 20, 2001, which was the National Stage of International
Application No. PCT/US00/14692, filed May 26, 2000, which claims
the benefit of U.S. Provisional Application No. 60/135,979, filed
May 26, 1999.
FIELD
[0002] The present invention relates to communication of
information between electronic devices. More specifically, the
present invention relates to the transmission of information
between a cellular phone, a transceiver, and a computing device
utilizing a Bluetooth communications protocol.
BACKGROUND
[0003] With the increasing popularity of various personal
electronic information and computing devices, there has been an
increasing need to conveniently integrate the operation, and more
specifically the transfer of information, between one or more of
such devices. These electronic devices may include notebook
computers, desktop computers, hand-held computing/organizer devices
often termed "personal digital assistants" ("PDAs"), cellular
phones, pagers, audio systems, display devices, cordless headsets,
digital cameras and virtually any other electronic or
electromechanical device that uses electronic information for its
operation.
[0004] In many environments, such as within an automobile, it would
be desirable to be able to communicate voice and/or data in
wireless fashion between various subsystems of the vehicle, such as
an overhead display subsystem of the vehicle, a cellular phone,
notebook computer, PDA, pager or other personal electronic device
which is carried on the person of an individual. The ability to
transfer information between various subsystems of the vehicle and
the user's personal electronic devices, in wireless fashion, would
increase the ease and convenience of use of such personal devices
when travelling in the vehicle.
[0005] Until the present, transferring information between one or
more of these devices has most often required that cabling be
connected between the devices. Usually the cabling is "application
specific", meaning that the cabling used to connect, for example, a
notebook computer and a hand-held PDA, is specifically designed for
only these two components. Thus, the same communications cabling
needed for connecting two specific electronic components often can
only be used to connect those two components, and not to connect
different combinations of other electronic components. Thus,
interconnecting different combinations of electronic devices for
intercommunication is often possible only with specific and often
expensive cabling.
[0006] Communication between more than two electronic devices at
one time via cabling presents even greater difficulty. Usually some
form of hub or "T" connector, together with a mechanical switch and
a suitable plurality of external cables is needed. Thus, the user
often has very limited flexibility in linking more than two
electronic devices together for communication.
[0007] In certain environments, such as within an automobile, it is
often impractical for the user to manually connect and disconnect
cabling between two or more electronic devices, especially when the
electronic devices are portable devices which the user desires to
carry when leaving the vehicle. Additionally, it would be
impractical to attempt to connect such personal electronic devices
to existing subsystems of a vehicle, such as an overhead display
console, with physical cables that would be loose within the
vehicle. Such cabling could easily interfere with the driver's
convenient operation of the various controls of the vehicle or with
the comfort and convenience of other passengers in the vehicle.
[0008] In some instances wireless communications, such as by
infrared or radio frequency (RF) signals, have been used to permit
communications and information sharing between two electronic
devices. However, previously developed implementations of these
methods of information transfer have suffered from significant
drawbacks. For example, infrared data transmission requires a "line
of sight" between the communicating sensors of the two devices.
Such a line of sight is often not practical and/or difficult to
maintain in certain operating environments, such as while
travelling in an automobile. This also constrains the use of
portable electronic devices to positions where the sensor on the
portable device is in the line of sight of the other device with
which the portable device is communicating.
[0009] Radio frequency data communication has traditionally been
hampered by the lack of a standard communications protocol for data
transfer which permits data to be transmitted between two or more
independent electronic devices. A further limitation with RF data
transfer systems has been the lack of a low cost, low power RF
transceiver able to be inexpensively integrated with compact,
portable electronic devices such as notebook computers, cellular
telephones, hand-held PDAs, pagers, etc., to enable convenient RF
information transfer between two or more of such devices over short
distances of up to, for example, about ten meters.
[0010] Still another limitation with traditional methods for
transmitting data between electronic devices has been the lack of
an "automatic" or "unconscious" connection when the devices are in
proximity with one another. By "automatic" or "unconscious" it is
meant an immediate communications link which is established between
two or more electronic devices as soon as the devices are within a
certain range, for example, ten meters, of each other without any
command being input to any of the devices by the user. This
limitation has up until the present required the user to provide
one or more commands to at least one of the electronic devices to
begin the process of transferring data between the two devices.
[0011] In view of the foregoing, it would therefore be desirable to
provide a wireless communications system adapted for use in
automotive applications to permit the wireless exchange of voice
and/or data between various portable electronic devices and various
electronic subsystems of a motor vehicle. Such a system would
preferably include a first electronic component which could be
readily integrated with a wide variety of electronic devices such
as notebook computers, pagers, PDAs, cellular phones, etc., and a
second component which could easily be integrated with various
electronic subsystems of a motor vehicle such as an audio system,
microphone, in-dash or overhead display system, on-board navigation
system, etc. The first and second components would also preferably
be extremely compact, lightweight, have low power requirements, and
would therefore be very easily integrated into the various portable
electronic devices described above, as well as into the various
electronic subsystems of the vehicle. The components would
preferably be able to automatically establish a wireless
communications link as soon as the electronic device incorporating
the first component comes into proximity with the vehicle, where
the vehicle incorporates the second component. Such a system may
obviate the need for any external cables to be attached between the
electronic device(s) and the subsystem(s) of the vehicle.
[0012] Another example of an application where such a system would
be highly useful is in the manufacturing of an automobile. If
pertinent information concerning one or more of the vehicle's
components or electronic subsystems could be quickly and
automatically accessed and transmitted, via a high speed wireless
communications link, to an electronic diagnostic/verification test
system stationed along side an assembly line on which the vehicle
is moving, then real time verification tests could be performed on
the various electronic subsystems of the vehicle as it being
manufactured. Such automatically created wireless communications
links would significantly enhance a wide range of other
applications.
[0013] Yet another example of an application where such a system
would be useful is in servicing a vehicle. For example, a high
speed wireless communications link could be established between a
vehicle and an electronic device located in a service area (e.g.,
at an auto dealership, a service station, etc.), such that
information relating to the operational status of any of a variety
of electronic substations of the vehicle would be automatically
transmitted to the electronic device. The information could be
transmitted upon arrival of the vehicle within the service area and
could also be transmitted while other operations are being
performed on a vehicle (e.g., oil change, etc.). Transmission of
vehicle diagnostic information using a wireless communications link
may reduce the amount of time necessary to diagnose problems with a
vehicle and increase the efficiency of providing service for a
vehicle.
[0014] It would also be desirable to provide a system that allows
for communication of information received by a cellular phone to a
computing device using a transceiver provided within a vehicle. It
would further be desirable to provide a system that establishes an
automatic or unconscious communications link between a cellular
phone and a transceiver or other device provided within a vehicle.
It would further be desirable to provide a system that allows for
the communication of facsimile transmissions and electronic mail
messages to a computing device from a cellular phone.
[0015] Furthermore, it would be desirable if such a wireless
communications system could be provided which does not add
appreciably to the overall costs of such portable electronic
devices or to the costs of various electronic subsystems of the
vehicle. Preferably, the system would provide a manner of
transmission that also ensures very secure wireless transmissions
to limit the possibility of the devices being susceptible to
electronic "eavesdropping" or the data being intercepted by other
RF devices operating in the same frequency spectrum.
SUMMARY
[0016] In one preferred embodiment, a Bluetooth communications
standard is utilized for establishing a wireless communications
link between two devices, where each device is equipped with a RF
transceiver operating in accordance with the Bluetooth
communications standard. This enables two or more devices to be
connected via high speed, wireless communications links to permit
voice and/or data information to be exchanged between the various
devices. The devices communicate on the 2.4 GHz ISM frequency band
and employ encryption and authentication schemes, in addition to
frequency hopping, to provide a high measure of security to the
transmission of data between the devices. Advantageously, the
wireless communications link is created automatically as soon as
the two devices come into proximity with each other.
[0017] In various preferred and exemplary embodiments, the RF
transceivers each comprise low power components providing a limited
range of up to about 100 meters. Each RF transceiver has a
negligible power consumption, as compared with the device with
which it is integrated. Each RF transceiver can automatically form
ad hoc communications links with other RF transceivers passing
within the predetermined transmission range.
[0018] The various preferred and exemplary embodiments enable voice
and/or data information to be transmitted between a wide variety of
devices without any command or intervention by the user. The
preferred embodiments lend themselves especially well to
applications involving the transfer of information between various
portable electronic devices and the various electronic subsystems
of a motor vehicle. The preferred embodiments further enable the
transfer of information between a motor vehicle and other
electronic systems outside of the vehicle, which makes these
embodiments ideally suited to applications involving assembly of
the vehicle, assisting in transmitting diagnostic information to
and from a vehicle, and a wide variety of other applications where
it is desirable to transmit information to a user traveling in a
motor vehicle.
[0019] The various preferred embodiments are also ideally suited to
establishing wireless communications links for a wide variety of
other home, business, and commercial applications. A wide variety
of electronic devices can thus be networked together for
information sharing.
[0020] A more specific exemplary embodiment relates to a system
communicating information. The system includes a transceiver
provided within a vehicle and configured for wireless communication
with a cellular phone and with a portable computing device. The
wireless communication between the transceiver and the cellular
phone utilizes a Bluetooth communications protocol.
[0021] Another exemplary embodiment relates to a wireless
communications system for use in a vehicle. The communications
system includes a transceiver provided within a vehicle. The
communication system also includes a cellular phone in wireless
communication with the transceiver, the wireless communication
utilizing a Bluetooth communications protocol. The communications
system further includes a computing device in wireless
communication with the transceiver. Information received by the
cellular phone is communicated to the transceiver and at least a
portion of the information is communicated from the transceiver to
the computing device.
[0022] A further exemplary embodiment relates to a communications
system for a vehicle. The communications system includes means for
receiving signals transmitted by a cellular phone, the signals
being transmitted in accordance with a Bluetooth communications
standard and including information. The communications system also
includes means for transmitting signals wirelessly to a computing
device. The signals transmitted to the computing device include at
least a portion of the information, and at least one of the means
for receiving signals and the means for transmitting signals are
provided within a vehicle.
[0023] A further exemplary embodiment relates to a method of
transferring information to a computing device. The method includes
receiving information at a transceiver provided in a vehicle. The
information is transmitted from a cellular phone using a Bluetooth
communications protocol. The method also includes communicating at
least a portion of the information from the transceiver to the
computing device using a wireless communications link.
[0024] The various preferred and exemplary embodiments are also
ideally suited to establishing wireless communications links for a
wide variety of other home, business, and commercial applications.
A wide variety of electronic devices can thus be networked together
for information sharing.
BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The various advantages of the present inventions will become
apparent to one skilled in the art by reading the following
specification and by referencing the following drawings in
which:
[0026] FIG. 1 is a block diagram drawing of a wireless
communications system in accordance with an exemplary embodiment
being used to transfer information between an electronic device of
the user and an audio system and a display system of a motor
vehicle;
[0027] FIG. 2 is a block diagram illustrating a wireless
communications system being used to perform vehicle diagnostics on
a motor vehicle by creating a wireless communications link between
a notebook computer running diagnostics software and a vehicle
interface circuit associated with a motor vehicle;
[0028] FIG. 3 is a block diagram of a wireless communications
system being used in an assembly operation in which information is
transmitted from RF transceivers located in each vehicle to an
assembly line monitoring system such that information needed for
the manufacture of each vehicle can be requested in advance and
thereafter made ready as needed during assembly of the vehicle;
[0029] FIG. 4 is a block diagram of a wireless communications
system being used to create a high speed data link between a
drive-through restaurant menu and the various electronic subsystems
of the motor vehicle to enable information from the drive-through
menu to be broadcast and/or displayed by the vehicle's electronic
subsystems;
[0030] FIG. 5 is a block diagram of a wireless communications
system being used in connection with a key fob to enable data to be
transmitted from the key fob to a vehicle bus interface of a motor
vehicle to control various subsystems of the vehicle;
[0031] FIG. 5A is a block diagram of the major components of the
key fob of FIG. 5;
[0032] FIG. 6 is a block diagram drawing illustrating a wireless
communications link created between a key fob carried by the user
and a work PC to enable data files to be transmitted in wireless
fashion between the PC and the key fob;
[0033] FIG. 7 is a block diagram of the key fob of FIGS. 5 and 5A
being used to transmit files in wireless fashion from the key fob
to a home PC;
[0034] FIG. 8 is a block diagram of an exemplary embodiment being
used to create a wireless communications link between a cellular
phone and a proprietary voice recording/playback system
manufactured by the assignee of the present application and
presently used on motor vehicles;
[0035] FIG. 9 is a block diagram of a wireless communications
system being used to create a wireless data link between a home PC
linked to the Internet and various electronic subsystems of a motor
vehicle to thereby enable information from the Internet to be
transmitted to the subsystems of the vehicle automatically;
[0036] FIG. 10 is a block diagram of a wireless communications
system being used to establish a wireless communications link
between a cellular phone and various electronic subsystems of a
motor vehicle after the cellular phone has linked with a wireless
service organization;
[0037] FIG. 11 is a block diagram of a wireless communications
system being used to establish a wireless data link between a
cellular phone of a user and one or more subsystems of a vehicle,
where the cellular phone is linked with a wireless service
organization so that "push" services from an Internet service
provider can be used to provide personalized traffic, weather or
other information automatically from the Internet to the user as
the user travels in the vehicle;
[0038] FIG. 12 is a block diagram of the wireless communications
system being used to create a wireless data link between a gas pump
kiosk of a service station and the subsystems of a vehicle, where
the gas pump is linked to the Internet, such that information from
the Internet can be transmitted in wireless fashion to one or more
electronic subsystems of the vehicle while the vehicle is parked
near the gas pump;
[0039] FIG. 13 is a block diagram of a wireless communications
system being used to create a wireless data link for downloading
map directions downloaded onto a home PC off of the Internet
directly to one or more electronic subsystems of the vehicle while
the vehicle is in close proximity to the home PC; and
[0040] FIG. 14 is a block diagram of a wireless communications
system being used to transmit corporate information or messages
from a wireless service organization to a fleet vehicle, where the
information is provided over the Internet from a corporate computer
system, and such that the information can be provided via a
wireless data link directly to the various subsystems of a fleet
vehicle.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0041] The various preferred and exemplary embodiments disclosed
herein are directed broadly to a wireless communications system and
method for transmitting information between two or more electronic
devices. In one embodiment a transceiver provided within a vehicle
is configured for wireless communication with a cellular phone and
with a portable computing device. The wireless communication
between the transceiver and the cellular phone utilizes a Bluetooth
communications protocol. The wireless communications link is
established automatically when the devices come within a
predetermined proximity to each other.
[0042] Referring to FIG. 1, a wireless communications system 10 in
accordance with an exemplary embodiment is illustrated. The various
preferred and exemplary embodiments are broadly directed to a
wireless communications system 10 in which at least one pair of RF
transceivers 10a and 10b are used to create a wireless
communications link between at least two independent electronic
devices. Each RF transceiver 10a and 10b operates in accordance
with a suitable wireless communications protocol or standard to
enable wireless communications between the transceivers 10a and
10b. The specific protocol or standard used also preferably enables
the wireless communications link to be established automatically
when the two RF transceivers come into proximity with each other.
The specific protocol or standard may be the Bluetooth
communications standard or the Shared Wireless Access
Protocol-Cordless Access (SWAP-CA) specification, or any other
suitable wireless communications specification that enables voice
and/or data information to be transmitted between the two RF
transceivers 10a and 10b.
[0043] The Bluetooth communications standard was established for
creating small form factor, low-cost, short range RF links between
mobile telephones, notebook computers, PDAs and other portable
electronic devices. It is the result of a joint effort between
several major commercial organizations to develop a RF
communications standard for creating secure, wireless
communications links between portable electronic devices such as
cellular phones, PDAs, computers and other electronic devices. The
Bluetooth communications standard is presently an "open" standard
that enables short range, secure, RF transmission of voice and/or
data information between such portable electronic devices to thus
eliminate the need for physical cables for interconnecting the
devices. Its implementation is based on a high performance, but low
cost, integrated RF transceiver chip set. The Bluetooth standard
further provides the potential for automatic and rapid "ad hoc"
wireless connections when two or more devices equipped with RF
transceivers operating in accordance with the Bluetooth standard
come into proximity with each other.
[0044] The Bluetooth standard makes use of the free, universal 2.4
GHz Industrial, Scientific, and Medical (ISM) band and a frequency
hopping scheme using 1600 hops/second. Encryption and
authentication are built into the Bluetooth standard along with an
automatic "output power adaption" feature that automatically
reduces the output power of the RF transceiver to only (and
exactly) that amount of power which is needed to accomplish the
data transmission.
[0045] The Bluetooth standard specifies a minimum RF receiver
sensitivity of -70 dBm and the nominal output power is specified as
0 dBm (i.e., 1 mW), which eliminates the need for an off-chip power
amplifier. With a 0 dBm transmit power, the typical range for the
RF transceiver is up to about 10 meters. The range can be extended
to about 100 meters by augmenting the RF transceiver chip set with
an external power amplifier to increase the transmit power to a
maximum of 20 dBm. The maximum data transfer rate between two
Bluetooth transceivers is slightly under 1 Mbits/sec. The data rate
for a voice channel is 64 kbits/sec (GSM-13 kbits/sec). A suitable
RF transceiver for use with the Bluetooth standard can be formed
relatively inexpensively as a single CMOS integrated chip. As such,
the RF transceiver can be manufactured sufficiently small such that
it can be readily incorporated into virtually all portable
electronic devices without adding appreciably to the size, cost,
weight and power consumption of such devices. Additional
information on the Bluetooth standard can be obtained at URL
address www.bluetooth.com.
[0046] Advantageously, the Bluetooth standard presently supports
wireless communications networks termed "piconets" of between two
to eight devices actively communicating with each other. Additional
devices can be "parked" and accessed as needed. Within a piconet,
one of the devices acts as the "master" device, which determines
the frequency hopping pattern, packet timing, and which coordinates
transmissions to the other "slave" devices. The slave devices can
also be members of more than one piconet at a time, thus forming an
ad hoc arrangement of multiple piconets termed a "scatternet".
Thus, networked communication of notebook computers, PDAs, mobile
phones, and other devices are provided for with the Bluetooth
standard.
[0047] The SWAP-CA specification is another wireless communications
standard that potentially could be employed by the RF transceivers
10a and 10b. The SWAP-CA specification also is intended to use
integrated transceivers on a 2.4 GHz frequency hopping scheme for
wireless communications between various products and appliances
used in homes. With this standard, the data transfer rate for
information is 2 Mbits/sec.
[0048] Accordingly, while the Bluetooth or SWAP-CA specifications
may be referenced throughout the discussion of the various
preferred embodiments, it should be understood that the claims
appended hereto should be not be limited to the use of one or the
other of these specifications, or necessarily to any specific
communications specification.
[0049] In FIG. 1, one RF transceiver 10a is integrated into a first
electronic device 12 while the other RF transceiver 10b is disposed
within a motor vehicle 14. The electronic device 12 may comprise a
notebook computer, a hand-held PDA, a cellular phone, a pager, or
any other portable electronic component. The first RF transceiver
10a includes an antenna 16 for enabling two way communications with
the RF transceiver 10a. Likewise, the second RF transceiver 10b
also includes its own antenna 18 for enabling two way
communications. The vehicle 14 typically includes an audio system
20 and a display system 22. The display system 22 may be mounted-in
a dashboard or instrument panel, an overhead console, a floor
mounted console, a visor, a rear view mirror or at a wide variety
of other locations inside the vehicle 14. The display 22 may
comprise a small cathode ray tube ("CRT"), a liquid crystal display
("LCD") or various other forms of displays which are easily visible
in daytime as well as nighttime driving conditions.
[0050] Each of the RF transceivers 10a and 10b are preferably
formed as integrated circuit components which have an extremely low
power consumption relative to the device with which they are
integrated. Accordingly, the RF transceivers 10a and 10b can be
maintained in an "on" state even when the electronic device with
which it is associated is turned off. The RF transceivers 10a and
10b are further extremely compact and relatively inexpensive such
that the overall dimensions of the electronic device are not
appreciably increased by the inclusion of one of the transceivers
10a or 10b, and further such that the overall cost of the
electronic device does not increase appreciably.
[0051] In FIG. 1, when the electronic device 12 comes into the
vicinity of the vehicle 14, a high speed, automatic, wireless data
link is created between the two RF transceivers 10a and 10b. The
required proximity will vary depending upon the power output of
each transceiver 10a and 10b. For a 0 dBm (1 mW) power output, a
transmission range of up to about 10 meters is provided. Providing
a suitable external amplifier to increase the output power of each
RF transceiver 10a or 10b to a maximum of 20 dBm will increase the
transmission range up to about 100 meters. It will be appreciated,
however, that with even greater power amplifiers an even greater
transmission range can be expected. Currently, the Bluetooth
standard identifies a 20 dBm maximum power output.
[0052] Once the wireless communications link is established between
the two RF transceivers 10a and 10b, information from the
electronic device 12 can be transmitted to transceiver 10b and then
output to the vehicle's audio system 20 and/or to the display
system 22. Thus, the user is not required to type in or otherwise
give any commands to the electronic device 12 before the wireless
communications link is established. Once established, the
communications link enables information from the electronic device
12 to be automatically transmitted via RF transceiver 10a to the
receiving RF transceiver 10b. In this manner, a wide variety of
useful information such as personal calendars, e-mail messages,
telephone directories, and virtually any other form of text
information can be displayed on the vehicle's display system 22. If
an external "text-to-speech" module is incorporated for operation
with the second RF transceiver 10b, then text information can be
converted into audio before being transmitted to the vehicle's
audio system 20 for playback. Thus, if the electronic device 12
comprises a notebook computer with a CD player, any information
available on the CD can potentially be converted to speech via the
external text-to-speech module and the vehicle's audio system 20.
Thus, a wide variety of CD-based or Internet-based audio material
such as books, educational materials, etc. could be played over the
vehicle's audio system 20 while the user is in the vehicle 14.
[0053] Referring to FIG. 2, another implementation of a wireless
communications system 10 is shown. This implementation is used to
facilitate performing diagnostics on a motor vehicle 14 via the
electronic device 12. In this example, the electronic device may
comprise a notebook computer or other electronic instrument loaded
with diagnostic software specifically suited to the vehicle being
tested. The first RF transceiver 10a is integrated into the
electronic device 12 and the second RF transceiver 10b is
integrated for communications with a vehicle interface system 24.
The vehicle interface system 24 is in turn coupled for two way
communications via a data bus 26 with various electronic subsystems
of the vehicle 14 such as the vehicle's Electronic Control Module
(ECM) 28, a fuel sensor 30, an exhaust sensor 32, a wheel speed
sensor 34 or virtually any other form of sensor which provides an
electronic output signal related to its operation. Other
nonexclusive examples of the types of sensors that may provide an
electronic output signal include oxygen sensors, fluid temperature
sensors (e.g., engine coolant, fuel, oil), exhaust and emission
sensors, oil pressure sensors, transmission sensors, engine timing
sensors, or any other type of sensor that may provide signals to an
on-board diagnostic module (e.g., OBD II, etc.) or other vehicle
system. Further, any of a variety of conditions of the vehicle
electronic subsystems may be monitored by such sensors (e.g., high
voltage, low voltage, temperature, pressure, malfunctions, and a
variety of others), and signals representative of any of the
variety of functions and operations may be output by the
sensors.
[0054] The wireless data link may be created automatically as soon
as the vehicle 14 enters a service bay or other designated service
area. The first RF transceiver 10a automatically begins
transmitting diagnostics information stored in an associated memory
(not shown) to the second RF transceiver 10b to begin the
diagnostics testing. Information is transmitted back to the first
transceiver 10a by the second transceiver 10b as information is
received from the vehicle interface 24 from each of the
sensors/components 28-34 under test. This information is then used
by service personnel to determine the operational status of each of
the sensors/components 28-34 on-board the vehicle 14. While the
electronic device 12 has been described as a notebook computer, it
will also be appreciated that the device 12 could just as readily
comprise a personal computer or other form of computer adapted to
run the diagnostics software.
[0055] It will be appreciated that the automatic wireless
communications link enables various diagnostics to be performed on
a motor vehicle even while other operations, for example, an oil
change, are being performed simultaneously with the running of the
diagnostics. This implementation can significantly reduce the
manpower required to perform various service-related operations on
a motor vehicle as well as decrease the length of time needed to
perform a full service checkup/tune-up on a vehicle when the
vehicle is brought in for routine maintenance such as oil changes,
wheel alignments, air and fuel filter changes, wheel balancing,
etc.
[0056] Referring now to FIG. 3, an implementation of the wireless
communications system 10 is shown being used in the assembly
process of a motor vehicle. In this implementation, the first RF
transceiver 10a of the system 10 is integrated with an assembly
line computer/monitoring system 36. Each one of a plurality of
vehicles 14.sub.1-14.sub.n, traveling on assembly line conveyor 38
includes a module 40 having the second RF transceiver 10b
integrated therewith. The module 40 can be programmed to include
information regarding the specific options that its associated
vehicle 14 is to include. Such options could comprise the type of
interior, audio system options, interior trim package, powertrain
options or any other equipment that will be needed to complete the
manufacture of that particular vehicle 14.
[0057] As each vehicle 14.sub.1-14.sub.n, moves along the assembly
line conveyor 38 into proximity with the computer/monitoring system
36, an automatic wireless communications link is established
between each RF transceiver 10b, one at a time, and the RF
transceiver 10a of the computer monitoring system 36. Information
regarding the options that each particular vehicle
14.sub.1-14.sub.n, is then transmitted via the wireless
communications link to the computer/monitoring system 36, which in
turn is transmitted over a communications link 42 to an inventory
management computer 44. It will be appreciated that the
communications link 42 could be a wire-based link or could even be
formed by an additional pair of RF transceivers to form a second
wireless link. The only limitation here would be the distance to
the inventory computer system 44 from the assembly/monitoring
computer system 36.
[0058] The above-described implementation enables the wireless
communications system 10 to thus be used to synchronize the supply
of needed equipment and materials to each vehicle 14.sub.1-14.sub.n
moving on the assembly line conveyor 38 to ensure that exactly the
proper equipment is provided for each vehicle.
[0059] It will also be appreciated that the implementations
described in connection with FIGS. 2 and 3 could be combined to
enable various electronic modules and subsystems of the vehicle to
be tested immediately as the vehicle moves along the assembly line
conveyor 38. This feature would enable a vehicle diagnostics
computer located adjacent to the assembly line conveyor 38 to run
tests on the vehicle's modules and electronic subsystems to detect
defective components before the vehicle proceeds to the next step
of the assembly process. This feature would save the significant
costs associated with manually removing various electronic modules
and components from the vehicle for testing and repair when a
defective component is detected after assembly of the vehicle is
complete.
[0060] Referring now to FIG. 4, yet another implementation of the
wireless communications system 10 is illustrated. This
implementation is in connection with a retail transaction in which
a drive-through menu board 46 has a first RF transceiver 10a of the
wireless communications system 10, in addition to a secure
transaction RF transceiver 48, integrated therewith. The vehicle
includes the second RF transceiver 10b in addition to a secure
transaction transceiver 50. As the vehicle 14 approaches the
drive-through menu board 46, the RF transceivers 10a and 10b
automatically establish a high-speed wireless communications link.
A secure datalink is established between transceivers 48 and 50 by
which electronic payment can be authorized by the driver of the
vehicle 14. Menu information is then automatically downloaded over
the high-speed communications link between the RF transceivers 10a
and 10b onto a system control device 50. The system control device
50 acts as an interface to transmit the information to the
vehicle's display system 22 and/or the vehicle's audio system 20
for playback. If a suitable microphone 58 is provided in the
vehicle 14, authorization for the transaction may be provided
verbally by the driver and transmitted via the communications link
between the secure transaction transceivers 48 and 50 back to the
drive-through menu board 46.
[0061] It will be appreciated that the above-described
implementation could be modified to enable drive-through banking
transactions, drive-through prescription ordering-or a wide variety
of other retail transactions made from within a vehicle without the
need for the driver to leave the vehicle 14 to effect the
transaction. Other applications could include toll collecting, fuel
purchases at service stations and other transactions that could
potentially be made more conveniently and more quickly by the use
of the wireless communications system 10.
[0062] Referring to FIG. 5, an implementation involving a
programmable key fob 60 is illustrated for setting and adjusting
various components of the vehicle 14. The key fob 60 is shown in
greater detail in FIG. 5A and includes the first RF transceiver 10a
of the wireless communications system 10, the antenna 16, a
suitable battery 62 for providing power and a suitable memory 64.
The second RF transceiver 10b of the system 10 is integrated into
the vehicle electronics to communicate with the vehicle bus
interface 24 via the vehicle bus 26, and further with various
modules 66-72 for controlling various components of the vehicle
14.
[0063] As the user approaches the vehicle 14 when carrying the key
fob 60, a high speed, wireless communications link is automatically
established between the two RF transceivers 10a and 10b.
Information stored in the memory 64 of the key fob 60 is then
transmitted to the second transceiver 10b and used to control
various modules of the vehicle 14 in accordance with preprogrammed
settings by the user. Thus, information relating to the precise
position of a power seat, volume and channel information of the
radio 72, climate control information for the HVAC 70, rearview
mirror or external mirror position information, etc., can all be
stored in the memory 64 and automatically transmitted to the
vehicle 14 as the user approaches the vehicle. The seats of the
vehicle 14, climate control settings, radio channel and volume
settings, mirror positions, etc. can all be automatically adjusted
by suitable vehicle electronics even before the user enters the
vehicle 14.
[0064] Referring to FIG. 6, another implementation of the wireless
communications system 10 using the programmable key fob 60 is
illustrated. In this implementation the key fob 60 is used to
interrogate a PC 74 at the user's place of business. Selected files
stored on the hard drive or in random access memory (RAM) of the PC
74 can be transmitted via a wireless communications link
established between the RF transceiver 10a of the key fob 60 and
the second RF transceiver 10b, which is integrated with the work PC
74. The information is stored in the memory of the key fob 60
before the user leaves his/her place of business.
[0065] Referring to FIG. 7, as the user arrives at his/her home, a
home PC 76 is automatically linked with the key fob 60 by the RF
transceiver 10a of the key fob 60 and a second RF transceiver 10b
integrated with the home PC 76. The automatically created wireless
communications link is used to transmit information stored in the
memory 64 (FIG. 5a) of the key fob 60 to the individual's home PC
76.
[0066] Referring now to FIG. 8, yet another implementation of a
wireless communications system 10 is shown in which a cellular
phone 78 is linked with a proprietary speech recording/playback
system 80 available commercially from the assignee of the present
application and marketed under the trademark "Travelnote.RTM.". The
Travelnote.RTM. system enables the driver or other vehicle occupant
to speak directly into a microphone 82 to record any notes or other
information which the user would otherwise write down on paper, but
which cannot be accomplished easily while driving the vehicle 14.
The notes or other information can be played back from the
Travelnote.RTM. recording/playback system 80 over a speaker 84 once
the user reaches his/her destination and prior to exiting the
vehicle 14. The Travelnote.RTM. recording/playback system 80 is
described in detail in 5,810,420, the disclosure of which is hereby
incorporated by reference.
[0067] In this implementation, the RF transceiver 10a is integrated
with the cellular phone 78 and the second RF transceiver 10b is
integrated with the Travelnote.RTM. recording/playback system 80.
The Travelnote.RTM. recording/playback system 80 may be located
within a visor or rear view mirror 86. Alternatively, it may be
located on the dashboard, overhead console, or any other convenient
location within the vehicle 14. The wireless communications system
10 provides a high-speed, wireless communications link between the
cellular phone 78 and the Travelnote.RTM. recording/playback system
80 to enable "hands free" use of the cellular phone 78. Thus, the
user need not hold the cellular phone 78 in one hand while driving;
the phone 78 can be placed on a console or seat 82 adjacent to the
user while the user carries on a hands-free conversation via the
microphone 82 and speaker 84 of the Travelnote.RTM.
playback/recording system 80.
[0068] A further advantage is that the wireless communications link
between the RF transceivers 10a and 10b is created automatically
when the cellular phone 78 comes into proximity with the second RF
transceiver 10b within the vehicle 14. Thus, the user need only
dial a number from the cellular phone 78 to place a call and the
conversation thereafter can be conducted via the Travelnote.RTM.
system 80. Alternatively, a call could even be placed via commands
and numbers spoken into the microphone 82 and transmitted via the
wireless communications link to the cellular phone 78. Useful
information received by the cellular phone 78 could even be
displayed on a small portion of a rearview mirror. Such information
could include auxiliary phone annunciators, a "low battery" warning
indicating a low battery power condition for the cellular phone 78
or other incoming call information received via the phone 78.
[0069] A modification of this implementation involves modifying the
above-described Travelnote.RTM. system to send and/or receive
digital information such that the Travelnote.RTM. system can be
used to pass digital information to and from a computing device 79
such as a hand-held computing device or a laptop computer. With
this capability, the Travelnote.RTM. system could be used to
transmit information received by a facsimile transmission or email
communications to the computing device. This digital information
would be first received by the user's cellular phone 78.
Preferably, an infrared communications link 79a is also established
by suitable hardware between the cellular phone 78 and the
computing device 79. The infrared link is used to transmit digital
information between the computing device 79 and the cellular phone
78. Preferably, an infrared link 79b is also established between
the Travelnote.RTM. system and the computing device 79 so that
digital information can just as easily be transmitted directly
between the computing device 79 and the Travelnote.RTM. system.
Messages sent to the Travelnote.RTM. system could be stored therein
for future downloading to another computer. The computing device 79
could also send stored phone numbers stored to the Travelnote.RTM.
system to simplify the dialing of phone numbers.
[0070] As will be appreciated, other implementations of the various
exemplary embodiments could be made in connection with a home
and/or vehicle. For example, RF transceiver 10a could be disposed
in a cellular phone while RF transceiver 10b is disposed in a
Homelink.RTM. system which is proprietary to the assignee of the
present application. The Homelink.RTM. system can be programmed to
interface with, for example, a garage door opener to open the
garage door when a control unit of the Homelink.RTM. system is
actuated by a user. By incorporating RF transceiver 10b into the
Homelink.RTM. system, the user could enter a predetermined code in
the cellular phone which is received by the Homelink.RTM. system
and which causes the Homelink.RTM. system to open the garage door.
In this manner, if an individual was not in his/her car or vehicle
as he/she approached their house, the garage door could still be
easily opened without the user having the garage door opener
unit.
[0071] In another implementation, one or more RF transceivers 10a
are used in connection with various devices in a home. A second RF
transceiver 10b is placed in a garage. The second transducer 10b
serves as a portal from the user's car to those devices in the home
that are equipped with RF transceivers 10a. The garage-based RF
transceiver 10b is able to interface and interact with those
devices incorporating a RF transceiver 10a, such as a home PC,
appliances, etc.
[0072] In still another implementation, one RF transceiver 10a
could be located within a vehicle while a second RF transceiver 10b
could be associated with a computer located either at a vehicle
dealership or at a home. When a vehicle is manufactured, all parts
could be tagged in the plant so it is known which specific parts
are installed on the vehicle. This information could be stored in a
database stored in a memory device in the car. In addition,
warranty information for those parts, as well as for the car as a
whole, could be stored in this database.
[0073] When the vehicle is in proximity to the first RF transceiver
10a while the vehicle is being serviced at a dealership, service
personnel could easily access information stored in the memory
device via the wireless link between RF transceivers 10a and 10b.
This would provide immediate access to information on the various
components of the vehicle, as well as warranty information.
[0074] In yet another implementation similar to that described
immediately above, only the Vehicle Identification Number ("VIN")
is delivered to the computer from the RF transceiver 10b located in
the vehicle. The VIN is then used by the computer to access a
database which is remote from the vehicle to obtain warranty and
part information. It will be appreciated that this information
could also be accessed through a web site of the manufacturer of
the vehicle.
[0075] In still another variation of the above-described
implementation, if a cellular telephone is located in the vehicle,
and the telephone is equipped with an RF transceiver 10b, then any
vehicle malfunctions could be reported to the vehicle manufacturer
or dealer via a wireless link established between the computer and
the cellular phone. This information can be used to facilitate
repair of the vehicle or the tracking of warranty information
pertaining to the vehicle.
[0076] The computer could also be used to personalize the vehicle
operation. For example, the vehicle owner could access a
manufacturer's website to select the desired operating parameters
for the vehicle. These parameters could include selecting a 12 hour
or 24 hour clock time display, establishing station pre-selects for
the vehicle radio operation, selecting parameters related to the
operation of the vehicle lights, enabling voice interactive
messages generated by the vehicle, or a variety of other vehicle
operating parameters. Once the operating parameters are selected by
the vehicle owner, the website could cause the owner's home
computer (which is equipped with RF transceiver 10a) to generate an
RF signal that is sensed by the vehicle causing the parameters to
be stored in a memory device in the vehicle. Alternatively, a
compact disc could be provided to the vehicle owner upon purchase
of the vehicle, which can be used with the individual's home
computer to personalize the vehicle's functions. This information
can then be transferred from the home computer to the vehicle via a
wireless link between the two RF transceivers 10a and 10b.
[0077] Referring to FIG. 9, another implementation of the wireless
communications system 10 is shown in which the system 10 includes
the first RF transceiver 10a in communication with a user interface
circuit 88. The user interface circuit 88 is in turn linked for
communication via a suitable bus 90 with a display system 22 and/or
an audio system 20 of the vehicle 14. The second RF transceiver 10b
is integrated with a home PC 92. The home PC 92 is linked to the
Internet.
[0078] The user uses the home PC 92 to retrieve information from
the Internet (e.g., audio books, news, weather, music, etc.) at a
convenient time. Once this information is received by the home PC
92 it is transmitted via the high-speed wireless communications
link between the two RF transceivers 10a and 10b automatically. For
this to occur, it will be appreciated that the vehicle 14 will need
to be parked in the proximate vicinity of the home PC 92 (i.e.,
within about 100 meters of the home PC 92). In this regard it will
also be appreciated that a suitable amount of random access memory
(RAM) is provided in association with the display 22 and/or the
vehicle audio system 20 for storing the information. The user can
then display or play back the information while traveling in the
vehicle 14 at the user's convenience. If the data is audio data,
then it is played back through the vehicle audio system 20. Even
text information which is received may be converted to audio
information if a suitable text-to-speech conversion circuit is
provided. The information stored could comprise traffic
information, daily calendar reminders, appointments or events,
e-mail messages, etc., in addition to the book, news, weather and
music information mentioned above.
[0079] Referring to FIG. 10, the wireless communications system 10
can also be used to enable information relating to various "points
of interest" along a route being traveled by the user. This
information could also be "personalized" information for the user
from an Internet-based information service.
[0080] In this implementation, a cellular phone 98 is used by the
user to make a connection with a wireless service organization 96.
The cellular phone 98 includes the first RF transceiver 10a while
the vehicle 14 includes the second RF transceiver 10b. A Global
Positioning System ("GPS") device 100 on-board the vehicle 14 can
be used to transmit, latitude/longitude information to the cellular
phone 98 over the wireless communications link established between
the two RF transceivers 10a and 10b. The cellular phone 98 in turn
can be used to link this information back to the wireless service
organization 96. The wireless service organization 96 then
transmits information on various points of interest near the
vehicle's latitude and longitude coordinates back to the cellular
phone 98, which in turn transmits this information via a wireless,
high speed data link from its RF transceiver 10a to the RF
transceiver 10b. The information is then displayed on the vehicle's
display 22 and/or played over the vehicle's audio system 20. The
point of interest information can include a wide variety of useful
information such as restaurants, shopping, service stations,
hospitals and other establishments in the vicinity of the vehicle.
The information could be displayed in a menu format in which the
user is able to select establishments and is provided with
directions on the display system 22 to each establishment selected.
Additional information concerning traffic conditions, road
construction, etc., could also be provided.
[0081] Referring to FIG. 11, another implementation of the wireless
communications system 10 is illustrated where "Push" technology is
used to download information from the Internet automatically to the
user traveling in the vehicle 14. A cellular phone 98 having the
first RF transceiver 10a of the wireless communications system 10
establishes an automatic, high-speed wireless communications link
with the second RF transceiver 10b located in the vehicle 14. The
transceiver 10b is in communication with the vehicle's display
system 22 and/or the vehicle's audio system 20.
[0082] The wireless service organization 96 is linked to the
Internet and to the cellular phone 98. The user can use his/her
home PC 92 (or alternatively a business PC) to create a
"personalized" website through one of the presently available
Internet-based news/search companies so that various personalized
information such as selected financial information (i.e., stock
price information), world or local news, traffic information along
a specified route of travel, phone directory or personal calendar
information, weather information, e-mail, etc., can be downloaded
by the wireless service organization 96 and provided to the
cellular phone 98. The RF transceivers 10a and 10b can then be used
to transmit the information to the vehicle's display system 22 or
audio system 20.
[0083] Referring to FIG. 12, a variation of the implementation
shown in FIG. 11 is illustrated in which existing Push technology
is used to download personalized information from an Internet based
information service to a suitable electronic system located at or
closely adjacent to a gasoline pump 100, or at a kiosk including
the gasoline pump 100, when the users vehicle 14 comes within the
vicinity of the gasoline pump 100. In this implementation, the
gasoline pump 100 includes the electronic device 12 which includes
the RF transceiver 10b, and the vehicle 14 includes the RF
transceiver 10a. The RF transceiver 10a is in communication with
the vehicle's display 22 and/or audio system 20. When the vehicle
14 comes into reasonably close proximity (e.g., within 10 meters of
the gasoline pump 100), the RF transceiver 10a automatically
establishes a high speed, wireless communications link with the RF
transceiver 10b of the electronic device 12. The RF transceiver 10a
transmits appropriate identifying information to the RF transceiver
10b via the automatically established wireless communications link.
This information is then linked to the Internet-based information
service. Information is then transmitted back to the electronic
system 12 associated with the gasoline pump 100. The information is
then transmitted over the wireless communications link to the RF
transceiver 10a located in the vehicle 14. It will be appreciated
that this personalized information could also be obtained from the
Internet by establishing wireless communications links with
electronic devices located on road signs, freeway overpasses, at
traffic lights and other points along a road or highway.
[0084] Referring to FIG. 13, another implementation somewhat
similar to that described in connection with FIG. 12 is provided.
The implementation of FIG. 13 enables a wireless communications
system 10 to provide a subset of map information needed for
assisting a user of the vehicle 14 in traveling to a designated
destination. In this implementation one RF transceiver 10a is
located in the vehicle 14 and the other RF transceiver 10b is
integrated with a PC 92, which may be located at the user's home or
place of business. The user 14 can enter a command from either the
PC 92 or from a suitable keyboard or control panel within the
vehicle 14, or even from a cellular phone carried within the
vehicle 14 and linked by two RF transceivers, requesting directions
for traveling to a particular destination. This request is
transmitted to an Internet-based information organization where it
is thereafter downloaded onto the PC 92. The information is then
transmitted via the high-speed wireless communications link created
by the RF transceivers 10a and 10b back to the vehicle 14 where it
may be displayed on the vehicle's display 22 or possibly played on
the vehicle's audio system 20. Since only a limited amount of
information pertaining to the specific directions requested is
transmitted back to the vehicle 14, this significantly reduces the
amount of memory required to be located on-board the vehicle 14. It
will be appreciated that this map information could just as easily
be provided by linking to an electronic subsystem associated with
the gasoline pump 100 (FIG. 12) or at some other location if the
user becomes lost and suddenly requires directions to a different
destination.
[0085] Referring now to FIG. 14, another implementation of the
wireless communications system 10 is provided in which information
from a business or a company is "pushed" into a company vehicle 14
from a corporate message center or corporate PC 102. The
information from the corporate message center or PC 102 is
transmitted via the Internet to the wireless service organization
96. A communications link is established between the wireless
service organization 96 and the user's cellular phone 98. The
cellular phone 98 includes one RF transceiver and the vehicle 104
includes the second RF transceiver 10b. Again, the RF transceiver
10b is in communication with the vehicle's display 22 and/or the
vehicle's audio system 20. Important business information received
by the cellphone 98 can then be downloaded via the wireless
communications link created by the RF transceivers 10a and 10b to
the user to apprise the user of important corporate news, events,
scheduling or other information which needs to transmitted to the
user on a timely basis. Again, this information could be relayed
through suitable electronic relaying devices provided at gasoline
pumps or at other points such as intersections, freeway overpasses,
etc. that the vehicle 14 is expected to pass in proximity to during
use.
[0086] It will be appreciated that an extremely large variety of
useful implementations of the wireless communications system may be
created. While the Bluetooth communications standard or the SWAP-CA
standard may be used with the RF transceivers 10a and 10b, it will
be appreciated that other communications specifications may also be
employed. Additionally, while many of the implementations described
herein have made use of a motor vehicle, it will be appreciated
that the RF transceivers 10a and 10b could just as easily be used
to effect high-speed wireless communications links between
virtually any two electronic devices which come into proximity with
one another, and where it would be useful to transfer information
from one device to the other.
[0087] Those skilled in the art can now appreciate from the
foregoing description that the broad teachings of the present
disclosure can be implemented in a variety of forms. Therefore,
while this invention has been described in connection with
particular examples thereof, the true scope of the claims appended
hereto should not be so limited since other modifications will
become apparent to the skilled practitioner upon a study of the
drawings and the present specification.
* * * * *
References