U.S. patent application number 13/854013 was filed with the patent office on 2014-09-18 for key layout for an input device.
The applicant listed for this patent is Logitech Europe S.A.. Invention is credited to Simone Mandelli, Sylvain Sauvage, Malachy Spollen.
Application Number | 20140267050 13/854013 |
Document ID | / |
Family ID | 51522656 |
Filed Date | 2014-09-18 |
United States Patent
Application |
20140267050 |
Kind Code |
A1 |
Spollen; Malachy ; et
al. |
September 18, 2014 |
KEY LAYOUT FOR AN INPUT DEVICE
Abstract
Embodiments of the invention are directed to a data input device
configured for use with one or more computing devices. The data
input device includes a housing and a communications module coupled
to the housing. The communication module is operable to establish
and maintain a connection with one or more computing devices, and
communicate instructions from the data input device to the one or
more computing devices. The data input device also includes a
plurality of input members disposed on the housing in at least five
rows. The plurality of input members includes four smaller sized
input members that are directional keys disposed along a portion of
a bottom row of input members. At least two-and-a-half input
members in a second row of input members directly above the bottom
row occupy the same length of the housing as the smaller sized
input members. In some embodiments, greater than three input
members disposed in the second row of input members directly above
the bottom row occupy the same length of the housing as the smaller
sized input members.
Inventors: |
Spollen; Malachy; (Lausanne,
CH) ; Sauvage; Sylvain; (La-Tour-de-Peliz, CH)
; Mandelli; Simone; (La Conversion, CH) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Logitech Europe S.A. |
Morges |
|
CH |
|
|
Family ID: |
51522656 |
Appl. No.: |
13/854013 |
Filed: |
March 29, 2013 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61800850 |
Mar 15, 2013 |
|
|
|
Current U.S.
Class: |
345/168 |
Current CPC
Class: |
G06F 1/1677 20130101;
G06F 1/1681 20130101; G06F 1/1669 20130101; Y10T 29/49826 20150115;
G06F 1/1616 20130101; G06F 3/0219 20130101; G06F 1/1632 20130101;
G06F 1/1626 20130101; G06F 1/1656 20130101 |
Class at
Publication: |
345/168 |
International
Class: |
G06F 3/02 20060101
G06F003/02 |
Claims
1. A data input device comprising: a housing; a communications
module, coupled to the housing, operable to establish and maintain
a connection with one or more computing devices, and communicate
instructions from the data input device to the one or more
computing devices; and a plurality of input members disposed on the
housing in at least five rows, wherein four smaller sized input
members of the plurality of input members are directional keys
disposed along a portion of a bottom row of input members, and
wherein at least two-and-a-half input members disposed in a second
row of input members directly above the bottom row occupy the same
length of the housing as the smaller sized input members.
2. The data input device of claim 1, wherein between two-and-a-half
and three input members disposed in the second row of input members
directly above the bottom row occupy the same length of the housing
as the smaller sized input members.
3. The data input device of claim 1, wherein greater than three
input members disposed in the second row directly above the bottom
row occupy the same length of the housing as the smaller sized
input members.
4. The data input device of claim 1, wherein the smaller sized
input members are arranged in two rows having a combined width less
than the width of the oversized elongated key.
5. The data input device of claim 1, wherein the smaller sized
input members are arranged in two rows having a combined width
equal to the width of the oversized elongated key.
6. The data input device of claim 1, wherein a left side of the
data input device includes five input members disposed on the
housing in five separate rows.
7. The data input device of claim 6, wherein the five input members
include two alphabet character keys and three function keys.
8. The data input device of claim 7, wherein the two alphabet
characters keys are configured to perform multiple functions.
9. The data input device of claim 8, wherein one of the two
alphabet character keys has an elongated length.
10. The data input device of claim 1, wherein the connection
between the data input device and the one or more computing devices
is a wireless connection.
11. A data input device comprising: a housing; a communications
module, coupled to the housing, operable to establish and maintain
a connection with one or more computing devices, and communicate
instructions from the data input device to the one or more
computing devices; and a plurality of input members disposed on the
housing, wherein a bottom row of input members includes: an
oversized elongated key located centrally on the data input device;
three input members having the same dimensions adjacent to one side
of the oversized elongated key; a single input member having the
same dimensions as the three input members, adjacent to an opposite
side of the oversized elongated key from the three input members;
and four smaller sized input members having smaller dimensions than
the three input members adjacent to an opposite side of the single
input member from the oversized elongated key.
12. The data input device of claim 11, wherein one or more of the
three input members has two functions.
13. The data input device of claim 11, wherein the three input
members, the oversized elongated key, and the single input member
have the same width.
14. The data input device of claim 13, wherein the smaller sized
input members are arranged in two rows having a combined width
approximately the width of the oversized elongated key.
15. The data input device of claim 13, wherein the smaller sized
input members are arranged in two rows having a combined width less
than the width of the oversized elongated key.
16. The data input device of claim 11, wherein the oversized
elongated key is a spacebar key.
17. The data input device of claim 11, wherein the smaller sized
input members are directional keys.
18. The data input device of claim 11, wherein the plurality of
input members are disposed on the housing of the data input device
in at least five rows of equal length, and wherein the length of
the space between each of the plurality of input members is
uniform.
19. The data input device of claim 11, wherein the data input
device is coupled to a protective cover housing a computing
device.
20. The data input device of claim 19, wherein the connection
between the data input device and the computing device is a
wireless connection.
Description
CROSS-REFERENCES TO RELATED APPLICATIONS
[0001] The present non-provisional application claims benefit under
35 U.S.C. .sctn.120 of U.S. U.S. Provisional Patent Application No.
61/800,850, filed on Mar. 15, 2013, and entitled "Protective Cover
for a Tablet," which is incorporated by reference in its entirety
for all purposes.
[0002] The following non-provisional U.S. patent applications
(including this one) are being filed concurrently, and the entire
disclosure of the other applications are incorporated by reference
into this application in their entirety for all purposes: [0003]
Application Ser. No. 13/______, filed Mar. 29, 2013 (Attorney
Docket No. 86947-870543 (099850US); [0004] Application Ser. No.
13/______, filed Mar. 29, 2013 (Attorney Docket No. 86947-870544
(099860US); [0005] Application Ser. No. 13/______, filed Mar. 29,
2013 (Attorney Docket No. 86947-870546 (099870US);
BACKGROUND OF THE INVENTION
[0006] Tablet computers are increasingly being used by consumers
due to their portability and ease of use. However, the portability
of the tablet computer introduces some disadvantages as it may not
provide all the functionality of a more robust computing device,
such as a laptop. For example, performing word processing on a
touch-screen keyboard may be cumbersome and less efficient.
Consumers desiring the word processing functionality of a laptop
may choose to attach a physical keyboard to their tablet computer.
Other consumers may desire using their tablet computer for media
purposes, such as playing games or viewing movies. Some consumers
may not use their tablet computer for a single purpose, but may use
it for word processing, media purposes, and for a variety of other
uses.
[0007] Accordingly, what is desired are improved methods and
devices for solving some of the problems discussed above, while
reducing at least some of the drawbacks described above.
BRIEF SUMMARY
[0008] According to an embodiment of the present invention, a data
input device includes a housing and a communications module coupled
to the housing. The communication module is operable to establish
and maintain a connection with one or more computing devices, and
communicate instructions from the data input device to the one or
more computing devices. The data input device also includes a
plurality of input members disposed on the housing in at least five
rows. The plurality of input members includes four smaller sized
input members that are directional keys disposed along a portion of
a bottom row of input members. At least two-and-a-half input
members in a second row of input members directly above the bottom
row occupy the same length of the housing as the smaller sized
input members.
[0009] According to certain embodiments, between two-and-a-half and
three input members disposed in the second row of input members
directly above the bottom row occupy the same length of the housing
as the smaller sized input members.
[0010] According to certain embodiments, greater than three input
members disposed in the second row of input members directly above
the bottom row occupy the same length of the housing as the smaller
sized input members.
[0011] In certain embodiments, the smaller sized input members are
arranged in two rows having a combined width less than the width of
the oversized elongated key. In other embodiments, the smaller
sized input members are arranged in two rows having a combined
width equal to the width of the oversized elongated key.
[0012] In further embodiments of the present invention, a left side
of the data input device includes five input members disposed on
the housing in five separate rows. The five input members include
two character keys and three function keys. In certain embodiments,
one of the two alphabet character keys has an elongated length. In
certain embodiments, the two alphabet characters keys are
configured to perform multiple functions.
[0013] In further embodiments of the present invention, a data
input device includes a housing and a communications module coupled
to the housing. The communication module is operable to establish
and maintain a connection with one or more computing devices, and
communicate instructions from the data input device to the one or
more computing devices. The data input device also includes a
plurality of input members disposed on the housing. A bottom row of
input members disposed on the housing an oversized elongated key
located centrally on the data input device, and three input members
having the same dimensions adjacent to one side of the oversized
elongated key. The bottom row may also include a single input
member having the same dimensions as the three input members,
adjacent to an opposite side of the oversized elongated key from
the three input members and four smaller sized input members having
smaller dimensions than the three input members adjacent to an
opposite side of the single input member from the oversized
elongated key.
[0014] According to certain embodiments, the plurality of input
members are disposed on the housing of the data input device in at
least five rows of equal length. In some embodiments, the length of
the space between each of the plurality of input members is
uniform. According to certain embodiments, the three input members,
the oversized elongated key, and the single input member have the
same width.
[0015] According to certain embodiments, the oversized elongated
key is a spacebar key. According to certain embodiments, the
smaller sized input members are directional keys.
[0016] According to certain embodiments, the data input device is
coupled to a protective cover housing a computing device.
[0017] According to certain embodiments, the connection between the
data input device and the computing device is a wireless
connection.
BRIEF DESCRIPTION OF THE DRAWINGS
[0018] FIG. 1 depicts a perspective view of a protective cover with
a latch mechanism configured to attach to a tablet computer,
according to an embodiment of the invention.
[0019] FIG. 2 depicts a perspective view of the protective cover
with a tablet computer configured thereon in a first user operable
configuration, according to an embodiment of the invention.
[0020] FIG. 3 depicts a perspective view of the protective cover
with a tablet computer configured thereon in a second user operable
configuration, according to an embodiment of the invention.
[0021] FIG. 4 depicts a perspective view of protective cover with a
latch mechanism configured to attach to a tablet computer 105,
according to an embodiment of the invention.
[0022] FIG. 5A depicts a detached tablet computer coming into
proximity with protective cover, according to an embodiment of the
invention.
[0023] FIG. 5B depicts tablet computer in contact with the
protective cover, but not yet secured in a closed configuration via
hinge, according to an embodiment of the invention.
[0024] FIG. 5C depict tablet computer in contact with the
protective cover where each subsequent figure shows tablet computer
being pushed successively closer to hinge, according to an
embodiment of the invention.
[0025] FIG. 5D depict tablet computer in contact with the
protective cover where each subsequent figure shows tablet computer
being pushed successively closer to hinge, according to an
embodiment of the invention.
[0026] FIG. 5E depict tablet computer in contact with the
protective cover where each subsequent figure shows tablet computer
being pushed successively closer to hinge, according to an
embodiment of the invention.
[0027] FIG. 5F depicts tablet computer in contact with protective
cover and being pushed closer to hinge, according to an embodiment
of the invention
[0028] FIG. 5G depicts tablet computer in contact with protective
cover and being pushed yet closer to hinge, according to an
embodiment of the invention.
[0029] FIG. 5H depicts tablet computer in contact with protective
cover and pushed completely into a closed configuration such hinge
contacts and secures tablet computer to protective cover, according
to an embodiment of the invention.
[0030] FIG. 5I illustrates an input device coupling to a protective
cover in a closed configuration, according to an embodiment of the
invention.
[0031] FIG. 6 depicts a perspective view of a protective cover with
a latch mechanism configured to attach to a tablet computer,
according to an embodiment of the invention.
[0032] FIG. 7A depicts a process of attaching a tablet computer to
a protective cover, according to an embodiment of the
invention.
[0033] FIG. 7B depicts a process of attaching a tablet computer to
a protective cover, according to an embodiment of the invention
[0034] FIG. 7C depicts tablet computer being pushed yet closer to
hinge, according to an embodiment of the invention.
[0035] FIG. 7D depicts tablet computer in contact with protective
cover, according to an embodiments of the invention.
[0036] FIG. 7E depicts tablet computer in contact with protective
cover in a fully closed clam-shell configuration, according to an
embodiment of the invention.
[0037] FIG. 7F illustrates an input device coupling to a protective
cover in a closed configuration, according to an embodiment of the
invention.
[0038] FIG. 8A illustrates a simplified diagram of a latch
structure for a protective cover, according to an embodiments of
the invention.
[0039] FIG. 8B depicts a process of attaching a tablet computer to
a protective cover, according to an embodiment of the
invention.
[0040] FIG. 8C depicts tablet computer engaged with latch and
securing the tablet computer 105 to protective cover.
[0041] FIG. 8D depicts latch moving back into a closed position
once the tablet computer is removed, according to an embodiment of
the invention.
[0042] FIGS. 9A-9E depict a latch with a vertical stopper in a
protective cover to secure a tablet computer, according to an
embodiment of the invention.
[0043] FIGS. 10A-10D depict a movable keyboard in a protective
cover, according to an embodiment of the invention.
[0044] FIG. 11 depicts a plurality of magnets embedded in a
protective cover, according to an embodiment of the invention
[0045] FIG. 12 depicts a space bar with magnets disposed therein,
according to an embodiments of the invention.
[0046] FIG. 13 depicts a particular number of magnets disposed in
and/or around a slot, according to an embodiment of the
invention.
[0047] FIG. 14 illustrates a protective cover with a rubberized
slot configured to hold a tablet computer in an active
configuration, according to an embodiment of the invention.
[0048] FIG. 15 illustrates a protective cover with a rubberized
slot configured to hold a tablet computer in a front-facing, active
upright configuration, according to an embodiment of the
invention.
[0049] FIG. 16 illustrates a rubberized slot for a protective
cover, according to an embodiment of the invention.
[0050] FIG. 17 illustrates a switch disposed in a slot, according
to an embodiment of the invention.
[0051] FIG. 18 illustrates a switch disposed in a slot of a
protective cover, according to an embodiment of the invention
[0052] FIG. 19 illustrates a switch disposed in a slot of a
protective cover, according to an embodiment of the invention
[0053] FIG. 20A depicts a top view of a keyboard according to an
embodiment of the invention.
[0054] FIG. 20B depicts a bottom row of the keyboard in FIG. 20A
shown in isolation, according to an embodiment of the
invention.
[0055] FIGS. 20C-20D depict portions of the keyboard from FIG. 20A
shown in isolation according to an embodiment of the invention.
[0056] FIG. 20E depicts a top view of a keyboard configured to
specify input sequences based on received keystrokes, according to
an embodiment of the invention.
[0057] FIG. 21 is a simplified block diagram of an exemplary system
2100 configured to operate the various protective cover systems
discussed herein, according to certain embodiments of the
invention.
DETAILED DESCRIPTION
[0058] Embodiments of the invention are directed to a protective
cover for a computing device. The protective cover may include a
latch configured to translate from the protective cover in a
horizontal or diagonal manner. The protective cover may include a
hinge with a stopper preventing over rotation of the hinge. The
protective cover may include a sliding tray that allows for the
computing device to engage into a slot in the protective cover in a
plurality of configurations. In some embodiments, the slot is
configured with a switch that when activated by a computing device
contacting the switch, places the keyboard in the protective cover
into a pre-defined mode of operation. The protective cover may
house magnets in a plurality of locations and configurations that
allow the protective cover and the computing device housed by the
protective cover to be oriented in a plurality of formations. A
keyboard in the protective cover may be configured with a specific
layout of keys and the functionality of a series of keystrokes may
be pre-defined as a specific operation or function.
[0059] FIG. 1 depicts a perspective view of a protective cover 100
with a latch mechanism 130 configured to attach to a tablet
computer 105, according to an embodiment of the invention. In a
closed configuration (not shown), the protective cover 100 can be
configured to fit securely over a tablet computer 105 in a clam
shell configuration to protect it from damage (e.g., scratches,
dents, shock damage, etc.). A latch 130 is operable to move from a
closed position (as shown) to an open position to attach to a
portion of the tablet computer 105 (e.g., via magnet coupling,
mechanical coupling, etc.) to hold and maintain and secure the clam
shell configuration. In an open position, the slot 120 can hold the
tablet computer 105 in a number of different upright positions to
provide an optimum viewing angle for a user. The protective cover
100 can further provide a number of input features and functions
including, but not limited to, an alphanumeric keyboard 110 and
media buttons (not shown).
[0060] The protective cover 300 includes a top side 102 and a
bottom side 104. The latch 130 is integrated in the top side 102 of
the protective cover 100 and is configured to automatically pop out
from a flush position (flush to the top side 102 of the protective
cover 300) and attach to the tablet computer 105 when the edge of
the tablet computer 105 is in close proximity to the latch 130, as
shown in FIGS. 4-15. The auto-latch capabilities can be performed
by magnetic means, electro-magnetic means, mechanical means, motion
detection, proximity detection, or any other technology that would
be appreciated by one of ordinary skill in the art with the benefit
of this disclosure. For example, the protective cover 100 can be
operable to detect a magnet within the tablet computer 105 and
automatically open the latch 130 to affix or couple the tablet
computer 105 to the protective cover 100 in the clam shell
position.
[0061] FIG. 2 depicts a perspective view of the protective cover
100 with a tablet computer 105 configured thereon in a first user
operable configuration, according to an embodiment of the
invention. In the first user operable configuration, the tablet
computer 105 is positioned in the slot 120 such that it is held in
an upright position and facing the keyboard 110 on the top side 102
of the protective cover 100. The latch 130 can be configured in the
closed configuration such that the latch 130 is flush with the top
side 102 of the protective cover 100 to provide an aesthetically
pleasing and sleek design. Although the tablet computer 105 is
shown in one viewing angle in the first user operable
configuration, it should be understood that the slot 120 can be
configured to hold the tablet computer 105 in a number of viewing
angles when configured to face the keyboard 110 side or the latch
130 side of the protective cover 100.
[0062] FIG. 3 depicts a perspective view of the protective cover
100 with a tablet computer 105 configured thereon in a second user
operable configuration, according to an embodiment of the
invention. In the second user operable configuration, tablet
computer 105 is positioned in the slot 120 such that it is held in
an upright position and facing latch 130 on the top side 102 of
protective cover 100. Latch 130 can be configured in the closed
configuration such that latch 130 is flush with the top side 102 of
protective cover 100 to provide an aesthetically pleasing and sleek
design. Although tablet computer 105 is shown in one viewing angle
in the second user operable configuration, it should be understood
that slot 120 can be configured to hold tablet computer 105 in a
number of viewing angles when configured to face the keyboard 110
side or the latch 130 side of protective cover 100.
[0063] Protective cover 100 can further include a number of media
buttons 140 (not shown) configured on the latch 130 side of the
protective cover 100. For example, media buttons 140 can include
standard media transport functions including play, pause, fast
forward, rewind, record, skip, main menu, and the like. In
alternative embodiments, media buttons 140 can be disposed on the
bottom side 140 to perform a variety of media functions when tablet
computer 105 and protective cover 100 are in the closed clam shell
configuration.
[0064] Many more configurations, features, and functions can be
incorporated in protective cover 100 and the other embodiments
described herein. For example, protective cover 100 can include a
touch panel, a fully configurable touch display, audio elements
(e.g., speakers, etc.), or other input/output devices as required
by design. In some cases, protective cover 100 can be water proof
or submergible. Protective cover 100 can be comprised of any
suitable plastic, fabric, metal, or other material that would be
appreciated by one of ordinary skill in the art with the benefit of
this disclosure. In some cases, a solar panel (not shown) can be
integrated, embedded, or disposed on the top side 102 or bottom
side 104 of protective cover 100 as a power source.
[0065] According to some embodiments, additional features may be
incorporated to help better secure tablet computer 105 in each of
its operable configurations. For example, friction pads can be
incorporated where the tablet computer 105 makes contact with the
protective cover 100 in the clamshell configuration to help prevent
the tablet computer 105 from sliding out of position. Furthermore,
magnets can also be used alone or in combination with friction pads
to better hold the tablet computer 105 in the various
configurations and operable configurations (e.g., clam shell,
operable configurations, etc.), as further described with respect
to FIGS. 18-20. Further still, some embodiments may include
switches or detection means to determine the configuration of the
tablet computer 105 with respect to protective cover 100. For
example, reed switches may be used in the slot 120 to determine the
angle and/or position of the tablet computer 105 to ensure that
protective cover 100 is in the correct mode of operation, as
further discussed below with respect to FIGS. 17-19.
[0066] Latch Mechanism
[0067] FIG. 4 depicts a perspective view of protective cover 100
with a latch mechanism 130 configured to attach to a tablet
computer 105, according to an embodiment of the invention. In some
embodiments, protective cover 100 can be slightly longer than
tablet computer 105 to accommodate and provide enough space for
latch 130 to pop out and into position without being blocked by the
tablet computer 105. For example, if the tablet computer is
positioned to be flush against the back end (i.e., latch 130 side)
of protective cover 100, latch 130 would not be able to rotate open
since tablet 105 would be blocking it. In some embodiments,
protective cover 100 and tablet computer 105 can be substantially
the same length with a fully functional auto-latch mechanism 130,
as further described in FIGS. 6-15. Latch 130 can be integrated
(e.g., embedded) into protective cover 100 and operable in any
suitable manner that functions to secure the tablet computer 105 to
the protective cover 300. For instance, the latch 350 may pop out
(i.e., rotate out) of the bottom side 104 or the top side 102 of
protective cover 100. In some embodiments, there may be multiple
latches configured to attach or detach tablet computer 105 to
protective cover 100.
[0068] FIGS. 5A-5H depict a succession of stages for configuring
the protective cover 100 in a closed clamshell configuration,
according to certain embodiments of the invention. FIG. 5A depicts
a detached tablet computer 105 coming into proximity with
protective cover 100, according to an embodiment of the invention.
FIG. 5B depicts tablet computer 105 in contact with the protective
cover 300, but not yet secured in a closed configuration via hinge
130. FIGS. 5C-5E depict tablet computer 105 in contact with the
protective cover 100 where each subsequent figure shows tablet
computer 105 being pushed successively closer to hinge 130. In each
case, the hinge 130 remains flush with protective cover 100. FIG.
5F depicts tablet computer 105 in contact with protective cover 100
and being pushed closer to hinge 130, according to an embodiment of
the invention. When tablet computer 105 is sufficiently close to
hinge 350, the hinge pops out from the flush position by magnetic
attraction with the tablet computer 105. For example, a magnet (not
shown) disposed within latch 130 is magnetically attracted to a
magnet disposed in the tablet computer, causing latch 130 to rise
(i.e., rotate upwards from the flush position). FIG. 5G depicts
tablet computer 105 in contact with protective cover 100 and being
pushed yet closer to hinge 130, according to an embodiment of the
invention. The tablet computer 105 (and magnet disposed therein) is
sufficiently close to latch 130 such that the latch is fully
extended and in position to make contact and secure tablet computer
105 in a closed configuration. FIG. 5H depicts tablet computer 105
in contact with protective cover 100 and pushed completely into a
closed configuration such hinge 130 contacts and secures tablet
computer 105 to protective cover 100, according to an embodiment of
the invention.
[0069] FIG. 5I illustrates an input device 105 coupling to a
protective cover 100 in a closed configuration, according to an
embodiment of the invention. Protective cover 100 includes a
housing 102, which can be the body of protective cover 100. Housing
102 can include slot 120 and latch mechanism 130. Housing 102 can
include a front portion 111, which may include a plurality of keys
(not shown) disposed therein, and a back portion 112, which can
include the latch mechanism 130. Furthermore, housing 102 can
include a surface 104. Latch mechanism 130 can include a top side
135 and a bottom side 137. In some aspects, latch mechanism 130 can
be hingeably coupled or connected to the back portion 112 of
housing 102. The input device 105 can include a surface 108. For
example, surface 108 can be any suitable display (e.g., touch
sensitive screen, LCD screen, etc.), as would be appreciated by one
of ordinary skill in the art.
[0070] In some embodiments, latch mechanism 130 can be configured
to couple to and secure input device 105 (e.g., surface 108) to
surface 104 of housing 102. Furthermore, latch mechanism 130 can be
configured to rotate, via the hinge coupling, between a first
configuration 180 and a second configuration 190. In some
embodiments, the first configuration is a closed position with top
side 135 of latch mechanism 130 flush with surface 104 of housing
102, and bottom side 137 of latch mechanism 130 embedded within
housing 102 such that latch mechanism 130 does not protrude from
the housing. Further, the second configuration 190 can be an open
position such that latch mechanism 130 is rotated relative to the
closed position (e.g., first configuration 180) and protrudes from
housing 102. In certain aspects, latch mechanism 130 is operable to
be rotated open from first configuration 180 to second
configuration 190 via the hinge coupling. As described above, latch
mechanism 130 can include a magnet (not shown) operationally
configured to couple the latch mechanism to the input device 130
(e.g., tablet computer). In some embodiments, latch mechanism 130
is operable to automatically open from first configuration 180 to
second configuration 190 in the presence of a magnetic field. For
example, input device 105 can include a magnet disposed therein
where, when brought in proximity to the magnet in latch mechanism
130, the latch rises due to the magnetic attraction between the two
magnets, as shown in FIGS. 5E-5H.
[0071] In certain embodiments, the magnet (not shown) in latch
mechanism 130 can provide a magnetic force operable to increase a
retention strength of the latch mechanism 130. The retention
strength can be related to an amount of force required to remove
the input device from the latch mechanism 130. For example, when
detaching the tablet computer 105 from the protective cover 100. In
some embodiments, the latch magnet(s) can provide a magnetic force
of a magnitude such that the retention strength of the latch
mechanism 130 is greater than a combined weight of the protective
cover 100 and the input device (e.g., tablet cover 105). For
example, if a protective cover 100 and a tablet computer 105 were
in the closed clamshell configuration with the latch mechanism 130
magnetically coupled to the tablet computer 105 (e.g., magnetically
coupled to another magnet disposed in tablet computer 105), a user
could pick up the combination of the protective cover 100 and
tablet computer 105 with one hand (e.g., grasping only tablet cover
105) and the latch mechanism 130 would not break the connection
(i.e., magnetic coupling) with tablet computer 105. Thus, a user
would typically have to overcome the retention strength to break
the connection. In some cases, the retention strength of the latch
can be reduced when the input device (e.g., tablet computer 105) is
coupled to the latch in the open position, and the input device is
moved past a threshold angle relative to the housing. In other
words, a user moves tablet computer 105 from protective cover 100
similar to the way a book is opened (e.g., protective cover 100
being the back cover resting on a surface and tablet computer 105
being the front cover being opened at an angle relative to the back
cover. In certain embodiments, the threshold angle is typically
greater than 45 degrees. In further embodiments, the retention
strength of latch mechanism 130 can be reduced when a lateral force
is applied to the input device (i.e., a force perpendicular to the
magnetic force between latch mechanism 130 and tablet computer
105).
[0072] Alternatively, other methods and/or features can be used to
improve the retention strength of both the latch mechanism 130 and
slot 120. For example, instead of magnets, other features like
hooks and loops, retaining pins, brads, adhesives, electro-magnets,
compounds exhibiting improved coefficients of friction, suction,
stiff hinges, stiff slots, and other means that would be
appreciated by one of ordinary skill in the art with the benefit of
this disclosure.
[0073] FIG. 6 depicts a perspective view of a protective cover 600
with a latch mechanism 630 configured to attach to a tablet
computer 105, according to an embodiment of the invention. The
latch 630 can rotate into an open position and slide out laterally
toward the back of protective cover 600, as further described
below. The protective cover 600 includes a top portion 602 and a
bottom portion 604. The top portion includes a keyboard 610, a slot
620, and a latch mechanism 630. In a closed configuration (not
shown), the protective cover 100 can be configured to fit securely
over a tablet computer 105 in a clam shell configuration to protect
it from damage (e.g., scratches, dents, shock damage, etc.). Latch
630 is operable to move from a closed position (as shown--embedded
within the top portion 602) to an open position to attach to a
portion of the tablet computer 105 (e.g., via magnet coupling,
mechanical coupling, etc.) to hold and maintain and secure the clam
shell configuration. In an open position, the slot 620 can hold the
tablet computer 105 in a number of different upright positions to
provide an optimum viewing angle for a user. The protective cover
100 can further provide a number of input features and functions
including, but not limited to, an alphanumeric keyboard 610 and
media buttons (not shown).
[0074] In some embodiments, the latch 130 is integrated in the top
side 102 of the back of protective cover 100 and configured to
automatically pop out from a flush position (flush to the top side
602) and attach to tablet computer 105 when the edge of tablet
computer 105 is in close proximity to latch 130, as shown in FIGS.
7A-7E. The auto-latch capabilities can be performed by magnetic
means, electro-magnetic means, mechanical means, motion detection,
proximity detection, or any other technology that would be
appreciated by one of ordinary skill in the art with the benefit of
this disclosure. For example, protective cover 600 can be operable
to detect a magnet within the tablet computer 105 and automatically
open the latch 630 to affix or couple the tablet computer 105 to
protective cover 600 in the clamshell position.
[0075] FIG. 7A depicts a process of attaching a tablet computer 105
to a protective cover 600, according to an embodiment of the
invention. In FIG. 7A, tablet computer 105 is approaching hinge
630, but is not yet attached. Hinge 630 remains flush with
protective cover 600. FIG. 7B depicts a process of attaching a
tablet computer 105 to a protective cover 600, according to an
embodiment of the invention. In this case, tablet computer 105 is
sufficiently close to hinge 350 such that hinge 630 pops out from
the flush position due to its magnetic attraction to tablet
computer 105. For example, a magnet (not shown) disposed within
latch 630 is magnetically attracted to a magnet disposed in the
tablet computer, causing latch 630 to rise (i.e., rotate upwards
from the flush position).
[0076] FIG. 7C depicts tablet computer being pushed yet closer to
hinge 630, according to an embodiment of the invention. Tablet
computer 105 (and a magnet disposed therein) is sufficiently close
to latch 630 such that latch 630 is fully extended (i.e., rotated
in a fully open configuration) and in a position to make contact
with and secure tablet computer 105 in a closed clamshell
configuration. FIG. 7D depicts tablet computer 105 in contact with
protective cover 600, according to an embodiments of the invention.
In addition to latch 630 being fully extended in a fully open and
rotated position, latch 630 is also pushed out laterally from the
back of protective cover 600, thus allowing tablet computer 105 to
be aligned with protective cover 600 when closed in the clamshell
configuration. Protective cover 600 differs from protective cover
100 in this respect. In some embodiments, protective cover 100 is
longer (front-to-back) than tablet computer 105 such that latch 130
has enough room to rotate open and couple to tablet computer 105,
as shown in FIG. 4. Protective cover 600, in contrast, rotates open
(or pivots) and laterally slides out from the back of protective
cover 600. Thus, protective cover 600 can be the same size as
tablet computer 105. FIG. 7E depicts tablet computer 105 in contact
with protective cover 600 in a fully closed clam-shell
configuration, according to an embodiment of the invention. As
shown, the tablet computer 105 and protective cover 600 are aligned
over one another and substantially the same size. Latch 105 is
engaged (e.g., coupled to) with tablet computer 105, securing the
two together. In some embodiments, once tablet computer 105 is
detached from latch 630, it can rotate and slide back into its
initial position flush against top portion 602.
[0077] FIG. 7F illustrates an input device 105 coupling to a
protective cover 600 in a closed configuration, according to an
embodiment of the invention. Protective cover 600 includes a
housing 602, which can be the body of protective cover 100. Housing
602 can include slot 620 and latch mechanism 630. Housing 602 can
include a front portion 611, which may include a plurality of keys
(not shown) disposed therein, and a back portion 612, which can
include the latch mechanism 630. Furthermore, housing 602 can
include a surface 604. Latch mechanism 630 can include a top side
635 and a bottom side 637. In some aspects, latch mechanism 630 can
be hingeably coupled or connected to the back portion 612 of
housing 602, such that latch mechanism 630 can rotate, via the
hinge coupling, from closed position (first configuration) 680 to
open position (second configuration) 690, and slideably coupled to
housing 602 such that latch mechanism 630 is configured to
laterally slide out from back portion 612 of housing 602 to an
extended position (third configuration) 695. In certain
embodiments, the bottom side 637 of latch mechanism 630 configured
to couple to and secure an input device 105 to the surface 604 of
housing 602, such that surface 608 of input device 105 is opposite
and adjacent to surface 604 of housing 602. For example, surface
608 can be any suitable display (e.g., touch sensitive screen, LCD
screen, etc.), as would be appreciated by one of ordinary skill in
the art.
[0078] In some embodiments, the first configuration 680 is a closed
position with top side 635 of latch mechanism 630 flush with
surface 604 of housing 602 and the bottom side 637 of latch
mechanism 630 is embedded within housing 602 such that latch
mechanism 630 does not protrude from the housing. The second
configuration 190 can be an open position such that latch mechanism
630 is rotated relative to the closed position (e.g., first
configuration 680) and protrudes from housing 602. In certain
aspects, latch mechanism 130 is operable to be rotated open from
first configuration 180 to second configuration 190 via the hinge
coupling. The third configuration (extended position) 195 can be
configured such that latch mechanism is laterally extended from the
back portion 612 of housing 602. As described above, latch
mechanism 630 can include a magnet (not shown) operationally
configured to couple latch mechanism 630 to input device 130 (e.g.,
tablet computer). In some embodiments, latch mechanism 630 is
operable to automatically open from first configuration 180 to
second configuration 190 in the presence of a magnetic field. For
example, input device 105 can include a magnet disposed therein
where, when brought in proximity to the magnet in latch mechanism
130, the latch rises due to the magnetic attraction between the two
magnets, similar to the images of FIGS. 5E-5H.
[0079] FIG. 8A illustrates a simplified diagram of a latch
structure for a protective cover 700, according to an embodiments
of the invention. The protective cover 800 includes a top portion
802 and a latch mechanism 830 disposed therein. In a closed
configuration (not shown), the protective cover 100 can be
configured to fit securely over a tablet computer 105 in a clam
shell configuration to protect it from damage (e.g., scratches,
dents, shock damage, etc.), similar to the protective covers 100
and 600, shown in FIGS. 4 and 6, respectively. In some embodiments,
the latch 830 is configured on a slanted track 832 in the top case
(i.e., upper portion of protective cover 800 including top portion
802), such that hinge 830 can slide diagonally upwards from a flush
position (i.e., flush with respect to top portion 802) in response
to a magnetic field. Once hinge 830 slides to the top of slanted
track 832 at, it can pivot and rotate at pivot point 834 causing
the hinge to open, similar to hinges 130 and 630 described above.
In some cases, hinge 830 can slant backwards with rotation and can
be triggered by magnetic force, mechanical force, or other suitable
means.
[0080] FIG. 8B depicts a process of attaching a tablet computer 105
to a protective cover 800, according to an embodiment of the
invention. In FIG. 8B, tablet computer 105 is approaching hinge 830
and is sufficiently close such that hinge 630 begins to slide
diagonally upwards out from the flush position to the pivot point
834 due to its magnetic attraction to tablet computer 105. As shown
in FIG. 8B, latch 830 is automatically raised once the tablet
computer (e.g., iPad) gets close to latch 830. FIG. 8C depicts
tablet computer 105 engaged with latch 830 and securing the tablet
computer 105 to protective cover 800, according to an embodiment of
the invention. As shown, latch 830 has slid up the slanted track
832 and is seated at pivot point 834 where it is rotated backwards
to secure the tablet computer 105 in a fitting position, such that
tablet computer 105 and protective cover 800 are properly aligned
in the clamshell configuration. FIG. 8D depicts latch 830 moving
back into a closed position once the tablet computer 105 is
removed, according to an embodiment of the invention. In some
embodiments, gravity and weight balance will cause hinge 830 to
return to the closed position (i.e., hinge 830 closed and flush
with top portion 802) once the tablet computer 105 (and its
magnetic field) are moved away. It should be noted that other means
may be used to move latch 830 into its various operating positions
(i.e., closed/open positions). For example, mechanical means,
pneumatic means, hydraulic means, or any suitable means as would be
appreciated by one of ordinary skill in the art with the benefit of
this disclosure. In some embodiments, a user can physically
manipulate latch 830 to close the latch (i.e., closed and flush
with top portion 802) or open latch 830 to couple to tablet
computer 105 and secure it in the clamshell configuration.
[0081] Referring back to FIG. 8D, in some embodiments, protective
cover 800 can include a housing 802 with surface 804, which can be
the body of protective cover 800. Housing 602 can include latch
mechanism 830 with a top side 835 and a bottom side 837. Housing
802 can include a front portion 811, which may include a plurality
of keys (not shown) disposed therein, and a back portion 812, which
can include the latch mechanism 830. In some aspects, housing 802
can include a slanted track 860 disposed within back portion 812 of
housing 802. The slanted track can have a lower end 862 and an
upper end 866.
[0082] In certain embodiments, latch mechanism 830 is slideably
coupled to slanted track 860 such that latch mechanism 830 is
configured to slide between the closed position at the lower end
862 of slanted track 860 (see FIG. 8A) to a raised position at the
upper end 866 of slanted track 860 (see FIG. 8B), The latch
mechanism can further be hingeably coupled to slanted track 860
such that latch mechanism 830 is configured to rotate, via the
hinge coupling, from the raised position (see FIG. 8B) to a latched
position (see FIG. 8C) at the upper end 866 of slanted track 860,
to couple to input device 105.
[0083] In some embodiments, in the closed position the outer
portion 835 of latch mechanism 830 is at the upper portion 866 of
slanted track 860 and flush with surface 804 of housing 802, such
that latch mechanism 830 does not protrude from surface 804 of
housing 802, and the inner portion 837 of latch mechanism 803 is
embedded within housing 802 such that aspects of the inner portion
837 is configured at the lower end of slanted track 860, as shown,
e.g., in FIG. 8A. In some cases, in the raised position, latch
mechanism 830 is raised along slanted track 860 such that inner
portion 837 is at upper portion 866 of slanted track 860 and outer
portion 835 is protruding above the surface of housing 802, as
shown, e.g, in FIG. 8B. In the latched position (e.g., see FIG.
8C), latch mechanism 830 can be rotated relative to the raised
position (e.g., see FIG. 8B) such that inner portion 837 of latch
mechanism 830 is operable to attach to an input device 105, e.g.,
as shown in FIG. 8C.
[0084] Hinge Stopper
[0085] FIGS. 9A-9E depict a hinge 902 with a stopper 904 in a
protective cover 901 to secure a tablet computer 903, according to
an embodiment of the invention.
In FIG. 9A, the tablet computer 903 is in a closed position with
respect to the protective cover 901. In FIG. 9A, the hinge 902 may
be on a hinge that allows the hinge 902 a limited angle of rotation
with respect to the protective cover 901. In some embodiments the
stopper may prevent the hinge 902 from rotating beyond a specific
angle. In some embodiments, the stopper may prevent the hinge 902
and the tablet computer 903 from extending beyond a 100 degree
angle. Other embodiments contemplate the stopper preventing the
hinge 902 and the tablet computer 903 from extending beyond
different angles.
[0086] FIG. 9B depicts the motion of the tablet computer 903 being
lifted into an opened position with respect to the protective cover
901. In some embodiments, when the tablet computer 903 is opened
while engaged with the hinge 902, the stopper in the protective
cover 901 may prevent the tablet computer 903 from being opened
beyond a certain angle. For example, as depicted in FIG. 9B, the
tablet computer 903 is opened to a roughly 45 degree angle with
respect to the protective cover 901. In some embodiments, the hinge
902 and the tablet computer 903 can be rotated to 100 degrees, at
which point, the stopper prevents the hinge 902 and the tablet
computer 903 from rotating beyond 100 degrees. In some embodiments,
the application of pressure to the stopper causes the stopper to
release and allows the hinge 902 to rotate beyond 100 degrees. As
noted above, other embodiments contemplated allow for different
angles of rotation. For example, some embodiments may include a
stopper that prevent the hinge 902 from rotating beyond an angle
less than 100 degrees, while other prevent the hinge 902 from
rotating beyond an angle greater than 100 degrees.
[0087] FIG. 9C depicts the hinge 902 in the closed position. The
hinge 902 may be in the closed position when the tablet computer
903 is disengaged from the hinge 902 and the protective cover 901.
In some embodiments, when the hinge 902 is in a closed position,
the hinge 902 is contained within a recess in the protective cover
901 and is flush with the top surface of the protective cover
901.
[0088] FIG. 9D depicts a forward view of the stopper 904 attached
to the protective cover 901. The hinge 902 is rotatable from a
closed position until the hinge 902 hits the stopper 904. In some
embodiments, the stopper 904 may be fixed to the protective cover
901 such that the stopper 904 cannot be removed from the protective
cover 901.
[0089] FIG. 9E depicts the hinge 902 removed from the body of the
protective cover 901. In some embodiments, when a large amount of
force is applied by the hinge 902 against the stopper 904, in order
to prevent structural damage to the hinge 902 or the protective
cover 901, the hinge 902 may pop out from the protective cover
901.
[0090] Sliding Tray
[0091] FIGS. 10A-10D depict a movable tray 1001 (which may also be
referred to a as a movable keyboard tray) in a protective cover
1000, according to an embodiment of the invention. The movable
keyboard tray 1001 may be disposed in a housing affixed, attached
or molded to the protective cover 1000. A plurality of input
members may be disposed on the movable tray. The movable keyboard
tray 1001 may be configured to translate from a first position to a
second position such that different recesses are opened in the
protective cover 1000 when the movable keyboard tray 1001 is
translated between the first and second positions. The movable
keyboard tray 1001 may be configured to translate along a
predefined track in the housing. In some embodiments, the movable
keyboard tray 1001 may have wheels enabling translation.
[0092] FIG. 10A depicts the movable keyboard tray 1001 in a first
position with respect to the protective cover 1000. When the
movable keyboard tray 1001 is in the first position, a first recess
1002 is opened in the body of the protective cover 1000. As shown
in FIG. 10B, when the movable keyboard tray 1001 is in the first
position, a tablet computer 1004 may be placed in the recess at an
angle that allows a user to access the movable keyboard tray 1001
and the front of the tablet computer 1004. This first configuration
may allow the tablet computer 1004 to be placed in a position
conducive to allow the user to interact with the movable keyboard
tray 1001 to send inputs to the tablet computer 1004. In other
embodiments, the tablet computer 1004 may be placed in the opposite
direction with the front of the tablet computer 1004 facing away
from the movable keyboard tray 1001.
[0093] FIG. 10C depicts the movable keyboard tray 1001 in a second
position with respect to the protective cover 1000. When the
movable keyboard tray 1001 is in the second position, a second
recess 1003 is opened in the body of the protective cover 1000. As
shown in FIG. 10D, when the movable keyboard tray 1001 is in the
second position, the tablet computer 1004 may be placed in the
recess at an angle that allows a user to access the front of the
tablet computer 1004. This second configuration may allow the
tablet computer 1004 to be placed in a position conducive to allow
the user view content on the tablet computer 1004 if the user does
not require accessing the movable keyboard tray 1001 or sending
inputs to the tablet computer 1004 by the movable keyboard
1001.
[0094] Magnets
[0095] FIG. 11 depicts a plurality of magnets embedded in a
protective cover 1100, according to an embodiment of the invention.
Magnets can be used to secure a tablet computer in both the closed
(i.e., clamshell configuration) and active configurations (tablet
computer 105 placed in slot in upright position).
[0096] Protective cover 1100 may include magnet(s) 1150 embedded in
or around the space bar of a keyboard affixed or attached to the
protective cover 1100, which can be configured to match the
placement of magnets disposed within the tablet computer 105 to
help hold the protective cover 1100 and tablet computer 105 in a
closed (i.e., clamshell) configuration. For example, FIG. 12
depicts a space bar 1200 with magnets 1250 disposed therein,
according to an embodiments of the invention. Magnets 1250 may be
arranged such that they are magnetically attracted to magnets
embedded in tablet computer 105 in the closed configuration. In
some embodiments, magnets 1250 can be magnetically attracted to
other magnetic objects. For example, magnets 1250 may be attracted
to a metal chassis or frame in tablet computer 105. Magnets 1250
can further be arranged in front of space bar 1200 and embedded in
the case (i.e., the main body of protective cover 1100). In some
embodiments, the magnets 1250 in space bar 1200 can cause space bar
1200 to be magnetically attracted to tablet computer 105 when the
protective cover is in a closed position. In some cases, the
magnetic attraction causes the space bar to slightly rise to
contact the tablet computer 105. This can be advantageous since
support by the space bar, which typically does not have characters
or glyphs silk screened or printed thereon, may prevent other keys
and their printed characters from contacting tablet 105 in the
closed configuration and inadvertently wearing them off over
time.
[0097] Protective cover 1100 can include magnets 1130 embedded in a
hinge 1130 to retain tablet computer 105 at its back end, as
described above with respect fo FIGS. 4-8D.
[0098] In some embodiments, magnets can be disposed in or around
the slot to improve the ability for a protective cover to hold a
tablet computer in the active position without sliding or falling
out (i.e., prevent upward and lateral or sideways movement). For
example, FIG. 13 depicts a plurality of magnets 1350 disposed in
and/or around the slot 1320. Magnets 1350 can be arranged such that
they are magnetically attracted to magnets embedded in the tablet
computer 105 in the active configuration. In some embodiments,
magnets 1350 can be magnetically attracted to other magnetic
objects. For example, magnets 1350 may be attracted to a metal
chassis or frame in tablet computer 105. Although FIG. 13 depicts a
particular number of magnets 1350 disposed in and/or around slot
1320, any number of magnets can be used. For example, some
embodiments may use more or fewer magnets. Furthermore, magnets
1350 can be of any suitable size, shape, or composition. In some
cases, magnets 1350 can be embedded within the slot, disposed on
the surface of the slot 1320, embedded within the case (i.e., not
part of the slot 1320) but close enough to hold the tablet computer
105 in an upright position. Magnets 1250 can be arranged in any
suitable configuration with respect to slot 1320 as required.
[0099] In certain embodiments, the one or more magnets 1350
disposed in or around slot 1320 are configured to provide a
magnetic force operable to increase a retention strength of the
slot. The retention strength can be related to an amount of force
required to budge or remove an input device (e.g., tablet computer
105) from slot 1320 when the input device is configured in one of
the plurality of upright configurations. For example, when an input
device is placed in the slot in a forward-facing upright
configuration, the retention strength determines the amount of
force required for a user to pull the input device out of the slot.
In some embodiments, magnets 1350 provide a magnetic force of a
magnitude such that the retention strength of slot 1320 is greater
than a combined weight of the protective cover and the input
device. For example, when an input device is placed in the slot in
a forward-facing upright configuration, a user could grasp only
tablet computer 105 and pick it up, thereby lifting the combination
of the tablet computer 105 and protective cover because the
retention strength of the slot is strong enough to hold the
combined weight of the combination of the two. This may be useful
if a user wants to quickly pick up the combination with one hand
and move it to a new location without worrying about tablet
computer 105 fallout out of the slot. In some aspects, the
retention strength of the slot can be reduced when the input device
is laterally moved along the slot from the one or more upright
configurations or the input device is moved a threshold angle from
the one of the plurality of upright configurations. For example, in
the forward-facing configuration, tablet computer 105 may be
resting in slot 1320 at a 72 degree angle (e.g., see FIG. 15). By
moving tablet computer 105 towards 90 degrees and beyond, the
retention strength of the slot can reduce such that it is easier to
remove the tablet computer 105 from the slot at steeper angles. The
amount of angle required to reduce the retention strength can vary
by design and would be appreciated by one of ordinary skill in the
art with the benefit of this disclosure.
[0100] According to some embodiments, additional features may be
incorporated to help better secure the tablet computer 105 in the
active and closed configurations as shown in the various
embodiments described herein. For example, friction pads can be
disposed where the tablet computer 105 makes contact with the
protective cover in the keyboard configuration to help prevent the
tablet computer 105 from sliding out of position. Moreover, slot
1320 can be raised from the top surface to provide additional
lateral grip (e.g., mechanical force) to the tablet computer 105,
e.g., by contacting the tablet computer 105 in a closed
configuration, or providing more surface area to contact the tablet
computer 105 in the active configuration. The slot can be comprised
of any suitable material. For instance, the slot 380 may comprise a
dual injected silicone.
[0101] It should be noted that the protective covers (e.g., 100,
400, 600, etc.) can be produced in different sizes, shapes, and
configurations to accommodate a variety of different computing
devices in addition to tablet computer(s) 105 including, but not
limited to, smart phones, personal digital assistants, e-paper,
mini-tablet computers, e-readers, and the like.
[0102] Rubberized Slot
[0103] In some embodiments, a rubberized slot may be used for
improved friction to better keep the tablet computer in a
rear-facing and active upright configuration. FIG. 14 illustrates a
protective cover 1400 with a rubberized slot 1420 configured to
hold a tablet computer 105 in an active configuration, according to
an embodiment of the invention. The tablet computer 105 is facing
the back end of protective cover 1400 at a 65 degree angle.
Rubberized slot 1420 can be designed and/or configured to support
tablet computer 105 at any suitable viewing angle or multiple
viewing angles based on the shape, depth, width, materials, etc. In
an exemplary case, tablet computer 105 is supported upright at a 65
degree angle due, in part, to features 1406 and 1407 of slot 1420.
FIG. 15 illustrates a protective cover 1400 with a rubberized slot
1420 configured to hold a tablet computer 105 in a front-facing,
active upright configuration, according to an embodiment of the
invention. The tablet computer 105 is facing the front end of
protective cover 1400 at a 72 degree angle. In an exemplary case,
tablet computer 105 is supported upright at a 72 degree angle due,
in part, to features 1408 and 1409 of slot 1420. In some
embodiments, rubberized slot 1420 can support tablet computer 105
in a number of angles due to the shape, depth, and materials used
to make the slot 1420.
[0104] In some embodiments, the rubberized slot is overmolded. The
overmolding can be operable to help keep tablet 105 in place
against protective cover 1400 when in the closed position. For
example, the overmolding can protrude high enough that it can
contact protective cover 1400 in the closed position such that a
friction created by the overmolded rubber can prevent the tablet
from sliding around laterally while secured against the protective
cover 1400.
[0105] FIG. 16 illustrates a rubberized slot 1420 for a protective
cover 1400, according to an embodiment of the invention. Rubberized
slot 1420 can include a co-molding silicon rubber 1424 disposed on
top of an extruded aluminum structure 1422. The silicon rubber
provides high friction (i.e., an improved coefficient of friction)
to hold tablet computer 105 in place without moving or sliding
upwards or laterally while positioned in rubberized slot 1420. The
silicon rubber can also be used to prevent sliding when tablet
computer 105 is configured in the closed (clamshell) configuration
with respect to protective cover 1400. In some cases, the silicon
rubber at the top of rubberized slot 1420 is configured to contact
a portion of tablet computer 105 to prevent lateral movement in the
closed configuration. Those of ordinary skill in the art would
appreciate that other suitable materials can be used with
rubberized slot 1420 to improve the frictional properties of the
rubberized slot.
[0106] In some embodiments, protective cover 1400 includes a
housing 1402 including a front portion 1411 and a back portion
1412. In some cases; a plurality of keys (e.g., alphanumeric
keyboard) may be disposed in the front portion 1411 of the housing.
The slot 1420 can be disposed in the housing 1402 at any suitable
location. In FIG. 14, slot 1420 is disposed above the plurality of
keys (not shown). The slot can span a suitable width of housing
1402 and can be configured to hold an input device (e.g., tablet
computer 105) in any of a plurality of upright configurations. In
some embodiments, slot 1420 spans the entire width of housing 1402.
However, slot 1420 may only span a portion of the width of 1402.
Alternatively, multiple slots may be implemented and can be aligned
in any suitable arrangement (e.g., longitudinally, latitudinally,
diagonally, etc.). Certain embodiments include at least a
forward-facing upright configuration such that the input device
faces the front portion 1411 of the housing 1402 (e.g., see FIG.
15), and at least a backward-facing upright configuration such that
the input device faces the back portion 1412 of the housing 1402
(e.g., see FIG. 14).
[0107] As described above, slot 1402, or a portion thereof, can be
overmolded with a rubber compound to provide an improved
coefficient of friction to reduce lateral slippage of the input
device when held in the slot. In some aspects, the overmolded
portion protrudes above the surface of the housing 1402 to that it
can contact a surface of the input device 105 when the surface of
the input device is configured to be opposite and adjacent to the
surface of the housing, as shown, e.g., in FIG. 7E. The rubber
compound can be silicon-based rubber compound. For example, slot
1420 can be molded and comprised of an extruded aluminum structure
with a co-molded silicon rubber disposed thereon. In some
embodiments, slot 1420 can be configured to hold input device 105
in two or more forward-facing upright configurations or two or more
backward-facing upright configurations.
[0108] According to certain embodiments, one or more magnets can be
disposed in or around the slot (e.g., see FIG. 13), where the
magnets are configured to improve the strength of the hold that the
slot has on the input device in the plurality of upright
configurations.
[0109] Configuration Detection--Slot Switch
[0110] FIG. 17 illustrates a switch 1725 disposed in a slot 1720,
according to an embodiment of the invention. The switch 1725 is
configured to detect when a tablet computer 105 is placed in the
active configuration and placed in slot 1720. In some embodiments,
switch 1725 can detect an orientation of the tablet computer 105
with respect to protective cover 1700. For example, switch 1725
detect if tablet 105 is in a forward facing (i.e., toward the
keyboard) active configuration (e.g., similar to FIG. 15), or a
rear facing (i.e., toward the latch) active configuration (e.g.,
similar to FIG. 14). Switch 1725 can be a mechanical switch,
magnetic reed switch, optical switch, touch sensitive switch,
resistive switch, temperature sensitive switch, pressure sensitive
switch, or any suitable switch to detect the presence of tablet
computer 105 in slot 1720, as would be appreciated by one of
ordinary skill in the art.
[0111] FIG. 18 illustrates a switch 1725 disposed in a slot 1720 of
a protective cover 1700, according to an embodiment of the
invention. Although one switch 1725 is shown, multiple switches any
number of locations and/or configurations may be used to detect the
presence or angle of the tablet computer 105 with respect to
protective cover 1700.
[0112] FIG. 19 illustrates a switch 1725 disposed in a slot 1720 of
a protective cover 1700, according to an embodiment of the
invention. Tablet computer 105 is shown in the forward facing
active configuration. In certain embodiments, the switch 1725 can
perform a number of other functions in addition to detecting the
presence and/or orientation (angle) of the tablet computer in slot
1720. For example, activating slot 1725 can be configured to turn
tablet computer 105 from an off-state to an on-state. In some
aspects, the configuration of tablet 105 (e.g., forward-facing or
rear-facing) may selectively turn on certain features related to
the active configuration. For example, some embodiments may
activate an alphanumeric keyboard when tablet computer 105 is in a
forward-facing active configuration, but power down other functions
not typically used in this configuration. Similarly, some
embodiments may activate media control buttons (not shown) disposed
toward the rear of protective cover 1700 when tablet computer 105
is in a rear-facing active configuration media. Some embodiments
may shut down wireless functions (i.e., internet connections,
bluetooth functionality, etc.) as well. It should be understood
that the examples provided herein are not exhaustive and other
power saving implementations of shutting down unused or uncommonly
used functions can be used as required. In some aspects, switch
1725 operation and the functions associated therewith are
controlled by a processor (e.g., processor 2110 of FIG. 21).
[0113] Macros
[0114] Keyboard macros allow short sequences of keystrokes inputted
by a user to be transformed, or modified, into other sequences of
keystrokes. In some embodiments, the short of sequence of
keystrokes can be modified into a longer, more time-consuming
sequence of keystrokes. In this way, frequently used or repetitive
sequences of keystrokes can be automated. In other embodiments, the
short of sequence of keystrokes can be used to represent an
operation (e.g., opening/closing a program or application, textual
manipulations such as delete, copy, paste and cut operations). In
some embodiments, the short sequences of keystrokes may be two or
more keystrokes.
[0115] FIG. 20A depicts a top view of a keyboard 2000 configured to
specify input sequences based on received keystrokes. The keyboard
2000 may also be referred to as a data input device. The keyboard
2000 may be comprised of a plurality of input members, which may
also be referred to as keys or buttons, disposed on the keyboard
2000. For example, when the user interacts with the keyboard 2000
by depressing the "spacebar" button 2002, while simultaneously
depressing the "fn" button 2001, the inputted keystrokes may be
modified to simulate an open application operation. In some
embodiments, this macro may open an application manager.
[0116] In another embodiment, when the user interacts with the
keyboard 2000 by depressing the "delete" button 2003, while
simultaneously depressing the "fn" button 2001, the inputted
keystrokes may be modified to simulate a forward delete operation.
This keyboard macro represents the "right arrow" button followed by
the "delete" button.
[0117] In other embodiments, other operations or sequences of
keystrokes can be mapped to inputted short sequences of
keystrokes.
[0118] Functional Advantages with New Keyboard Layout
[0119] Bottom Row Keys
[0120] FIG. 20A depicts a top view of a keyboard 2000 according to
an embodiment of the invention. The keyboard 2000 may also be
referred to as a data input device. The keyboard 2000 may be
comprised of a plurality of input members, which may also be
referred to as keys, disposed on the keyboard 2000.
[0121] FIG. 20B depicts a bottom row of the keyboard 2000 in FIG.
20A shown in isolation, according to an embodiment of the
invention. The bottom row of the keyboard 2000 is configured such
that an oversized elongated input member key 2002 is centrally
located on the bottom row of the keyboard 2000. In FIG. 20B, the
oversized elongated key 2002 is depicted as the "space bar" key.
The oversized elongated key 2002 is adjacent to three keys 2004 of
generally the same dimensions on the left side of the oversized
elongated key 2002. In some embodiments, each one of the three keys
2004 has one dimension in common with the oversized elongated key
2051. In FIG. 20B, the three keys to the left of the oversized
elongated key 2051 are depicted as a "fn" (or function) key, an
"alt/option" (or alternate/option) key, and a "cmd" (or command)
key.
[0122] The oversized elongated key 2002 is also adjacent to a
single input member or key 2006, located to the right of the
oversized elongated key 2002. The single key 2006 may also have
dimensions identical to the three keys 2004 to the left of the
oversized elongated key 2002. In FIG. 20B, the key to the right of
the oversized elongated key 2002 is depicted as a "ctrl" (or
control) key.
[0123] In some embodiments, and as depicted in FIG. 20B, the widths
of the oversized elongated key 2002, the three keys 2004, and the
single key 2006, are of generally the same dimension.
[0124] Adjacent to the single key 2006, along the bottom row of the
keyboard 2000 are four smaller sized input members or keys 2008. In
some embodiments, the smaller sized keys 2008 may have widths that
are half or less than half of the widths of the oversized elongated
key 2002. In FIG. 20B, the smaller sized keys 2008 are depicted as
the directional or arrow keys (i.e., the up, down, left, and right
keys).
[0125] In other embodiments, the functions of the oversized
elongated key 2002, the three keys 2004, the single key 2006, and
the smaller sized keys 2008 may be different than those depicted in
FIG. 20B.
[0126] Second Row Key Sizes
[0127] FIG. 20C depicts a portion of the keyboard 2000 from FIG.
20A shown in isolation according to an embodiment of the invention.
In the row above the bottom row of the keyboard 2000, above the
smaller sized keys 2008, the keyboard 2000 may house a set of keys
2010. In FIG. 20C, the set of keys 2010 is depicted as the "greater
than"/"period mark" key, the "question mark"/"slash" key, and the
"shift"/"caps lock" key. In this embodiment, the functions of the
"shift" key and "caps lock" key, which are typically separate keys,
has been combined onto one key (the third key in the set of keys
2010. In this embodiment, the size of the "shift"/"caps lock" key
is similar to the two adjacent keys in the set of keys 2010. In
other embodiments, the functions of the set of keys 2010 may be
different than those depicted in FIG. 20C.
[0128] In FIG. 20C, the combined length of the smaller sized keys
2008 is superimposed over the set of keys 2010. The combined length
of the smaller sized keys 2008 is depicted as a dashed line 2012.
As depicted in FIG. 20C, the combined length of the set of keys
2010 extends beyond the combined length of the smaller sized keys
2008. In the embodiment depicted in FIG. 20C, a number of the set
of keys 2010 equal to the combined length of the smaller sized keys
2008 is less than three. In some embodiments, the number of the set
of keys 2010 equal to the combined length of the smaller sized keys
2008 is at least two-and-a-half. In other embodiments, the number
of the set of keys 2010 equal to the combined length of the smaller
sized keys 2008 is at least three. In other words, in some
embodiments there are at least two-and-a-half keys positioned
directly above the arrow keys. In a further embodiment there are at
least three full keys positioned directly above the arrow keys. And
in a further embodiment there are more than three full keys
positioned directly above the arrow keys. This layout configuration
can be significant for relatively small sized keyboard layouts,
where maximizing the size and/or position of frequently used keys
can make a significant difference in the usability or ergonomics of
the keyboard.
[0129] Left Side Keys
[0130] In some embodiments, the left side of the keyboard 2000 is
configured with one or more alphanumeric character keys as the
first keys on the second row and third row from the top of the
keyboard 2050. FIG. 20D depicts a portion of the keyboard 2000 from
FIG. 20A shown in isolation according to an embodiment of the
invention. As depicted in FIG. 20D, the left side of the keyboard
2050 includes a ".quadrature." (or "Home/Esc") key 2020, a
"Q"/"lock" key 2022, an "A"/"tab" key 2024, a "shift"/"caps lock"
key 2026, and the "fn" (or function) key 2028. In this embodiment,
the functions of the "shift" key and "caps lock" key, which are
typically separate keys, has been combined onto a single key 2026.
Similarly, the keys representing the letters "A" and "Q" have been
combined with keys typically reserved solely for function keys. The
"A" key has been merged with the "tab" key on key 2024. The "Q" has
been merged with the "lock" key on key 2022. As depicted in FIG.
20D, the relative positions of the merged alphabet keys 2022 and
2024 are generally the same as on typical keyboards, providing a
consistency to a user. In some embodiments, the functions of keys
2020-2028 may be different than those depicted in FIG. 20D.
[0131] In some embodiments, key 2024 (the "A" key) may be elongated
and have a larger length than the other 25 alphabet character keys.
In FIG. 20D, the length of key 2024 is represented by line segment
2030. In such embodiments, key 2022 (the "Q" key) may have the same
dimensions as all other alphabet keys on the keyboard 2000. In some
embodiments, key 2022 may be the same dimensions as the other
alphabet keys, and may be smaller than key 2024. Key 2026 may have
a slightly larger width than the alphabet keys.
[0132] System Diagram
[0133] FIG. 21 is a simplified block diagram of an exemplary system
2100 configured to operate the various protective cover systems
discussed herein, according to certain embodiments of the
invention. The system 2100 includes a processor 2110, a power
management system 2120, a power supply (e.g., batteries,
rechargeable batteries, accumulator(s), renewable power sources
(e.g., solar)) 2140, an output device 2150, a keyboard matrix 2160,
a communications block 2170, and configuration detection system
2180. Each of the system blocks 2120-2170 can be in electrical
communication with processor 2110. System 2100 may further include
additional systems (e.g., audio systems, touch screen
input/outputs, etc.) that are not shown or discussed to prevent
obfuscation of the novel features described herein. Similarly, some
systems 2100 may include fewer systems (e.g., no photovoltaic
elements, no keyboard, etc.) as required by design.
[0134] In certain embodiments, processor 2110 comprises one or more
microprocessors (.mu.Cs) and is configured to control the operation
of system 2100. Alternatively, processor 2110 may include one or
more microcontrollers (MCUs), digital signal processors (DSPs), or
the like, with supporting hardware/firmware (e.g., memory,
programmable I/Os, etc.), as would be appreciated by one of
ordinary skill in the art. The processor 2110 can be configured to
operate the protective cover systems (or more generally, an input
device) described herein.
[0135] In certain embodiments, power management system 2120 of
system 2100 is configured to manage power distribution, recharging,
power efficiency, and the like. Power management system 2120 can
control the power distribution by the batteries 2140 or other power
sources (e.g., photovoltaic cells).
[0136] Communications system 2170 is configured to provide wireless
communication between the various protective cover systems
described herein and a mobile input device (e.g., tablet computer),
according to an embodiment of the invention. Communications system
2170 can be controlled by processor 2110 and configured to provide
radio-frequency (RF) communication with any of a wide variety of
wireless communication protocols including, but not limited to,
Bluetooth, WiFi and infra-red wireless systems. The various
protective cover systems may optionally comprise a hardwired
connection to their associated input devices. For example, system
2100 may provide a Universal Serial Bus (USB) cable to provide
electronic communication to the attached input device or other
external devices. Other embodiments of the invention may utilize
different types of cables or connection protocol standards to
effectuate a hardwired communication with outside entities. In one
non-limiting example, a USB cable can be used to provide power to a
protective cover to charge batteries 2140 and simultaneously
support data communication between system 2100 and the input
device.
[0137] In some embodiments, processor 2110 integrates processing
and RF communication functions, in addition to scanning and
controlling keyboard matrix 2160 and/or other input devices,
monitoring configuration detection mechanisms 2180 (e.g., the relay
switches, mechanical switches 1725, etc., used to detect keyboard
modes, media button modes, closed configurations, etc.),
controlling LEDs (not shown) and the like. Keyboard matrix 2160 can
include a mechanical keyboard disposed in the protective cover.
User inputs to the keyboard matrix can be wirelessly coupled to the
tablet computer by way of processor 2110 and communication system
2170. Keyboard 2160 can include a key frame disposed therein (not
shown) including a means of configuration detection. For example,
relay switches (not shown) can be activated by a protective cover
frame to determine when the keyboard is configured in the various
operations modes of operation, as further described below.
Alternatively, keyboard matrix 2160 may be configured in a
non-conventional format (e.g., number pad, application-specific key
arrangements, or other grouping of a number of buttons). The
individual keys may be mechanical (e.g., scissor keys, plunger
keys, etc.), soft keys on a display, or other suitable type of
input interface.
[0138] The above description is illustrative and is not
restrictive. Many variations of the invention will become apparent
to those skilled in the art upon review of the disclosure. The
scope of the invention should, therefore, be determined not with
reference to the above description, but instead should be
determined with reference to the pending claims along with their
full scope or equivalents.
[0139] It is to be understood that the examples and embodiments
described above are for illustrative purposes only and that various
modifications or changes in light thereof will be suggested to
persons skilled in the art and are to be included within the spirit
and purview of this application and scope of the appended claims.
Therefore, the above description should not be understood as
limiting the scope of the invention as defined by the claims.
* * * * *