US20140267050A1

Movatterモバイル変換

Info

Publication number: US20140267050A1
Application number: US13/854,013
Authority: US
Inventors: Malachy Spollen; Sylvain Sauvage; Simone Mandelli
Original assignee: Logitech Europe SA
Current assignee: Logitech Europe SA
Priority date: 2013-03-15
Filing date: 2013-03-29
Publication date: 2014-09-18
Also published as: US20140262876A1; US9244535B2

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.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS

The present non-provisional application claims benefit under 35 U.S.C. §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.

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:

- Application Ser. No. 13/______, filed Mar. 29, 2013 (Attorney Docket No. 86947-870543 (099850US);
- Application Ser. No. 13/______, filed Mar. 29, 2013 (Attorney Docket No. 86947-870544 (099860US);
- Application Ser. No. 13/______, filed Mar. 29, 2013 (Attorney Docket No. 86947-870546 (099870US);

BACKGROUND OF THE INVENTION

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.

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

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.

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.

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.

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.

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.

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.

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.

According to certain embodiments, the oversized elongated key is a spacebar key. According to certain embodiments, the smaller sized input members are directional keys.

According to certain embodiments, the data input device is coupled to a protective cover housing a computing device.

According to certain embodiments, the connection between the data input device and the computing device is a wireless connection.

BRIEF DESCRIPTION OF THE DRAWINGS

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.

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.

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.

FIG. 4 depicts a perspective view of protective cover with a latch mechanism configured to attach to atablet computer105, according to an embodiment of the invention.

FIG. 5A depicts a detached tablet computer coming into proximity with protective cover, according to an embodiment of the invention.

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.

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.

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.

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.

FIG. 5F depicts tablet computer in contact with protective cover and being pushed closer to hinge, according to an embodiment of the invention

FIG. 5G depicts tablet computer in contact with protective cover and being pushed yet closer to hinge, according to an embodiment of the invention.

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.

FIG. 5I illustrates an input device coupling to a protective cover in a closed configuration, according to an embodiment of the invention.

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.

FIG. 7A depicts a process of attaching a tablet computer to a protective cover, according to an embodiment of the invention.

FIG. 7B depicts a process of attaching a tablet computer to a protective cover, according to an embodiment of the invention

FIG. 7C depicts tablet computer being pushed yet closer to hinge, according to an embodiment of the invention.

FIG. 7D depicts tablet computer in contact with protective cover, according to an embodiments of the invention.

FIG. 7E depicts tablet computer in contact with protective cover in a fully closed clam-shell configuration, according to an embodiment of the invention.

FIG. 7F illustrates an input device coupling to a protective cover in a closed configuration, according to an embodiment of the invention.

FIG. 8A illustrates a simplified diagram of a latch structure for a protective cover, according to an embodiments of the invention.

FIG. 8B depicts a process of attaching a tablet computer to a protective cover, according to an embodiment of the invention.

FIG. 8C depicts tablet computer engaged with latch and securing thetablet computer105 to protective cover.

FIG. 8D depicts latch moving back into a closed position once the tablet computer is removed, according to an embodiment of the invention.

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.

FIGS. 10A-10D depict a movable keyboard in a protective cover, according to an embodiment of the invention.

FIG. 11 depicts a plurality of magnets embedded in a protective cover, according to an embodiment of the invention

FIG. 12 depicts a space bar with magnets disposed therein, according to an embodiments of the invention.

FIG. 13 depicts a particular number of magnets disposed in and/or around a slot, according to an embodiment of the invention.

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.

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.

FIG. 16 illustrates a rubberized slot for a protective cover, according to an embodiment of the invention.

FIG. 17 illustrates a switch disposed in a slot, according to an embodiment of the invention.

FIG. 18 illustrates a switch disposed in a slot of a protective cover, according to an embodiment of the invention

FIG. 19 illustrates a switch disposed in a slot of a protective cover, according to an embodiment of the invention

FIG. 20A depicts a top view of a keyboard according to an embodiment of the invention.

FIG. 20B depicts a bottom row of the keyboard inFIG. 20A shown in isolation, according to an embodiment of the invention.

FIGS. 20C-20D depict portions of the keyboard fromFIG. 20A shown in isolation according to an embodiment of the invention.

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.

FIG. 21 is a simplified block diagram of anexemplary system2100 configured to operate the various protective cover systems discussed herein, according to certain embodiments of the invention.

DETAILED DESCRIPTION

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.

FIG. 1 depicts a perspective view of aprotective cover100 with alatch mechanism130 configured to attach to atablet computer105, according to an embodiment of the invention. In a closed configuration (not shown), theprotective cover100 can be configured to fit securely over atablet computer105 in a clam shell configuration to protect it from damage (e.g., scratches, dents, shock damage, etc.). Alatch130 is operable to move from a closed position (as shown) to an open position to attach to a portion of the tablet computer105 (e.g., via magnet coupling, mechanical coupling, etc.) to hold and maintain and secure the clam shell configuration. In an open position, theslot120 can hold thetablet computer105 in a number of different upright positions to provide an optimum viewing angle for a user. Theprotective cover100 can further provide a number of input features and functions including, but not limited to, analphanumeric keyboard110 and media buttons (not shown).

The protective cover300 includes atop side102 and abottom side104. Thelatch130 is integrated in thetop side102 of theprotective cover100 and is configured to automatically pop out from a flush position (flush to thetop side102 of the protective cover300) and attach to thetablet computer105 when the edge of thetablet computer105 is in close proximity to thelatch130, as shown inFIGS. 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, theprotective cover100 can be operable to detect a magnet within thetablet computer105 and automatically open thelatch130 to affix or couple thetablet computer105 to theprotective cover100 in the clam shell position.

FIG. 2 depicts a perspective view of theprotective cover100 with atablet computer105 configured thereon in a first user operable configuration, according to an embodiment of the invention. In the first user operable configuration, thetablet computer105 is positioned in theslot120 such that it is held in an upright position and facing thekeyboard110 on thetop side102 of theprotective cover100. Thelatch130 can be configured in the closed configuration such that thelatch130 is flush with thetop side102 of theprotective cover100 to provide an aesthetically pleasing and sleek design. Although thetablet computer105 is shown in one viewing angle in the first user operable configuration, it should be understood that theslot120 can be configured to hold thetablet computer105 in a number of viewing angles when configured to face thekeyboard110 side or thelatch130 side of theprotective cover100.

FIG. 3 depicts a perspective view of theprotective cover100 with atablet computer105 configured thereon in a second user operable configuration, according to an embodiment of the invention. In the second user operable configuration,tablet computer105 is positioned in theslot120 such that it is held in an upright position and facinglatch130 on thetop side102 ofprotective cover100.Latch130 can be configured in the closed configuration such thatlatch130 is flush with thetop side102 ofprotective cover100 to provide an aesthetically pleasing and sleek design. Althoughtablet computer105 is shown in one viewing angle in the second user operable configuration, it should be understood thatslot120 can be configured to holdtablet computer105 in a number of viewing angles when configured to face thekeyboard110 side or thelatch130 side ofprotective cover100.

Protective cover

100 can further include a number of media buttons140 (not shown) configured on thelatch130 side of theprotective cover100. For example,media buttons140 can include standard media transport functions including play, pause, fast forward, rewind, record, skip, main menu, and the like. In alternative embodiments,media buttons140 can be disposed on thebottom side140 to perform a variety of media functions whentablet computer105 andprotective cover100 are in the closed clam shell configuration.

Many more configurations, features, and functions can be incorporated inprotective cover100 and the other embodiments described herein. For example,protective cover100 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 cover100 can be water proof or submergible.Protective cover100 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 thetop side102 orbottom side104 ofprotective cover100 as a power source.

According to some embodiments, additional features may be incorporated to help better securetablet computer105 in each of its operable configurations. For example, friction pads can be incorporated where thetablet computer105 makes contact with theprotective cover100 in the clamshell configuration to help prevent thetablet computer105 from sliding out of position. Furthermore, magnets can also be used alone or in combination with friction pads to better hold thetablet computer105 in the various configurations and operable configurations (e.g., clam shell, operable configurations, etc.), as further described with respect toFIGS. 18-20. Further still, some embodiments may include switches or detection means to determine the configuration of thetablet computer105 with respect toprotective cover100. For example, reed switches may be used in theslot120 to determine the angle and/or position of thetablet computer105 to ensure thatprotective cover100 is in the correct mode of operation, as further discussed below with respect toFIGS. 17-19.

Latch Mechanism

FIG. 4 depicts a perspective view ofprotective cover100 with alatch mechanism130 configured to attach to atablet computer105, according to an embodiment of the invention. In some embodiments,protective cover100 can be slightly longer thantablet computer105 to accommodate and provide enough space forlatch130 to pop out and into position without being blocked by thetablet computer105. For example, if the tablet computer is positioned to be flush against the back end (i.e., latch130 side) ofprotective cover100,latch130 would not be able to rotate open sincetablet105 would be blocking it. In some embodiments,protective cover100 andtablet computer105 can be substantially the same length with a fully functional auto-latch mechanism130, as further described inFIGS. 6-15.Latch130 can be integrated (e.g., embedded) intoprotective cover100 and operable in any suitable manner that functions to secure thetablet computer105 to the protective cover300. For instance, the latch350 may pop out (i.e., rotate out) of thebottom side104 or thetop side102 ofprotective cover100. In some embodiments, there may be multiple latches configured to attach or detachtablet computer105 toprotective cover100.

FIGS. 5A-5H depict a succession of stages for configuring theprotective cover100 in a closed clamshell configuration, according to certain embodiments of the invention.FIG. 5A depicts adetached tablet computer105 coming into proximity withprotective cover100, according to an embodiment of the invention.FIG. 5B depictstablet computer105 in contact with the protective cover300, but not yet secured in a closed configuration viahinge130.FIGS. 5C-5E depicttablet computer105 in contact with theprotective cover100 where each subsequent figure showstablet computer105 being pushed successively closer to hinge130. In each case, thehinge130 remains flush withprotective cover100.FIG. 5F depictstablet computer105 in contact withprotective cover100 and being pushed closer to hinge130, according to an embodiment of the invention. Whentablet computer105 is sufficiently close to hinge350, the hinge pops out from the flush position by magnetic attraction with thetablet computer105. For example, a magnet (not shown) disposed withinlatch130 is magnetically attracted to a magnet disposed in the tablet computer, causinglatch130 to rise (i.e., rotate upwards from the flush position).FIG. 5G depictstablet computer105 in contact withprotective cover100 and being pushed yet closer to hinge130, according to an embodiment of the invention. The tablet computer105 (and magnet disposed therein) is sufficiently close to latch130 such that the latch is fully extended and in position to make contact andsecure tablet computer105 in a closed configuration.FIG. 5H depictstablet computer105 in contact withprotective cover100 and pushed completely into a closed configurationsuch hinge130 contacts and securestablet computer105 toprotective cover100, according to an embodiment of the invention.

FIG. 5I illustrates aninput device105 coupling to aprotective cover100 in a closed configuration, according to an embodiment of the invention.Protective cover100 includes ahousing102, which can be the body ofprotective cover100. Housing102 can includeslot120 andlatch mechanism130. Housing102 can include afront portion111, which may include a plurality of keys (not shown) disposed therein, and aback portion112, which can include thelatch mechanism130. Furthermore,housing102 can include asurface104.Latch mechanism130 can include atop side135 and abottom side137. In some aspects,latch mechanism130 can be hingeably coupled or connected to theback portion112 ofhousing102. Theinput device105 can include asurface108. For example,surface108 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.

In some embodiments,latch mechanism130 can be configured to couple to and secure input device105 (e.g., surface108) to surface104 ofhousing102. Furthermore,latch mechanism130 can be configured to rotate, via the hinge coupling, between afirst configuration180 and asecond configuration190. In some embodiments, the first configuration is a closed position withtop side135 oflatch mechanism130 flush withsurface104 ofhousing102, andbottom side137 oflatch mechanism130 embedded withinhousing102 such thatlatch mechanism130 does not protrude from the housing. Further, thesecond configuration190 can be an open position such thatlatch mechanism130 is rotated relative to the closed position (e.g., first configuration180) and protrudes fromhousing102. In certain aspects,latch mechanism130 is operable to be rotated open fromfirst configuration180 tosecond configuration190 via the hinge coupling. As described above,latch mechanism130 can include a magnet (not shown) operationally configured to couple the latch mechanism to the input device130 (e.g., tablet computer). In some embodiments,latch mechanism130 is operable to automatically open fromfirst configuration180 tosecond configuration190 in the presence of a magnetic field. For example,input device105 can include a magnet disposed therein where, when brought in proximity to the magnet inlatch mechanism130, the latch rises due to the magnetic attraction between the two magnets, as shown inFIGS. 5E-5H.

In certain embodiments, the magnet (not shown) inlatch mechanism130 can provide a magnetic force operable to increase a retention strength of thelatch mechanism130. The retention strength can be related to an amount of force required to remove the input device from thelatch mechanism130. For example, when detaching thetablet computer105 from theprotective cover100. In some embodiments, the latch magnet(s) can provide a magnetic force of a magnitude such that the retention strength of thelatch mechanism130 is greater than a combined weight of theprotective cover100 and the input device (e.g., tablet cover105). For example, if aprotective cover100 and atablet computer105 were in the closed clamshell configuration with thelatch mechanism130 magnetically coupled to the tablet computer105 (e.g., magnetically coupled to another magnet disposed in tablet computer105), a user could pick up the combination of theprotective cover100 andtablet computer105 with one hand (e.g., grasping only tablet cover105) and thelatch mechanism130 would not break the connection (i.e., magnetic coupling) withtablet computer105. 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 computer105) 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 movestablet computer105 fromprotective cover100 similar to the way a book is opened (e.g.,protective cover100 being the back cover resting on a surface andtablet computer105 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 oflatch mechanism130 can be reduced when a lateral force is applied to the input device (i.e., a force perpendicular to the magnetic force betweenlatch mechanism130 and tablet computer105).

Alternatively, other methods and/or features can be used to improve the retention strength of both thelatch mechanism130 andslot120. 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.

FIG. 6 depicts a perspective view of aprotective cover600 with alatch mechanism630 configured to attach to atablet computer105, according to an embodiment of the invention. Thelatch630 can rotate into an open position and slide out laterally toward the back ofprotective cover600, as further described below. Theprotective cover600 includes atop portion602 and abottom portion604. The top portion includes akeyboard610, aslot620, and alatch mechanism630. In a closed configuration (not shown), theprotective cover100 can be configured to fit securely over atablet computer105 in a clam shell configuration to protect it from damage (e.g., scratches, dents, shock damage, etc.).Latch630 is operable to move from a closed position (as shown—embedded within the top portion602) to an open position to attach to a portion of the tablet computer105 (e.g., via magnet coupling, mechanical coupling, etc.) to hold and maintain and secure the clam shell configuration. In an open position, theslot620 can hold thetablet computer105 in a number of different upright positions to provide an optimum viewing angle for a user. Theprotective cover100 can further provide a number of input features and functions including, but not limited to, analphanumeric keyboard610 and media buttons (not shown).

In some embodiments, thelatch130 is integrated in thetop side102 of the back ofprotective cover100 and configured to automatically pop out from a flush position (flush to the top side602) and attach totablet computer105 when the edge oftablet computer105 is in close proximity to latch130, as shown inFIGS. 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 cover600 can be operable to detect a magnet within thetablet computer105 and automatically open thelatch630 to affix or couple thetablet computer105 toprotective cover600 in the clamshell position.

FIG. 7A depicts a process of attaching atablet computer105 to aprotective cover600, according to an embodiment of the invention. InFIG. 7A,tablet computer105 is approachinghinge630, but is not yet attached. Hinge630 remains flush withprotective cover600.FIG. 7B depicts a process of attaching atablet computer105 to aprotective cover600, according to an embodiment of the invention. In this case,tablet computer105 is sufficiently close to hinge350 such that hinge630 pops out from the flush position due to its magnetic attraction totablet computer105. For example, a magnet (not shown) disposed withinlatch630 is magnetically attracted to a magnet disposed in the tablet computer, causinglatch630 to rise (i.e., rotate upwards from the flush position).

FIG. 7C depicts tablet computer being pushed yet closer to hinge630, according to an embodiment of the invention. Tablet computer105 (and a magnet disposed therein) is sufficiently close to latch630 such thatlatch630 is fully extended (i.e., rotated in a fully open configuration) and in a position to make contact with andsecure tablet computer105 in a closed clamshell configuration.FIG. 7D depictstablet computer105 in contact withprotective cover600, according to an embodiments of the invention. In addition to latch630 being fully extended in a fully open and rotated position, latch630 is also pushed out laterally from the back ofprotective cover600, thus allowingtablet computer105 to be aligned withprotective cover600 when closed in the clamshell configuration.Protective cover600 differs fromprotective cover100 in this respect. In some embodiments,protective cover100 is longer (front-to-back) thantablet computer105 such thatlatch130 has enough room to rotate open and couple totablet computer105, as shown inFIG. 4.Protective cover600, in contrast, rotates open (or pivots) and laterally slides out from the back ofprotective cover600. Thus,protective cover600 can be the same size astablet computer105.FIG. 7E depictstablet computer105 in contact withprotective cover600 in a fully closed clam-shell configuration, according to an embodiment of the invention. As shown, thetablet computer105 andprotective cover600 are aligned over one another and substantially the same size.Latch105 is engaged (e.g., coupled to) withtablet computer105, securing the two together. In some embodiments, oncetablet computer105 is detached fromlatch630, it can rotate and slide back into its initial position flush againsttop portion602.

FIG. 7F illustrates aninput device105 coupling to aprotective cover600 in a closed configuration, according to an embodiment of the invention.Protective cover600 includes ahousing602, which can be the body ofprotective cover100. Housing602 can includeslot620 andlatch mechanism630. Housing602 can include afront portion611, which may include a plurality of keys (not shown) disposed therein, and aback portion612, which can include thelatch mechanism630. Furthermore,housing602 can include asurface604.Latch mechanism630 can include atop side635 and abottom side637. In some aspects,latch mechanism630 can be hingeably coupled or connected to theback portion612 ofhousing602, such thatlatch mechanism630 can rotate, via the hinge coupling, from closed position (first configuration)680 to open position (second configuration)690, and slideably coupled tohousing602 such thatlatch mechanism630 is configured to laterally slide out fromback portion612 ofhousing602 to an extended position (third configuration)695. In certain embodiments, thebottom side637 oflatch mechanism630 configured to couple to and secure aninput device105 to thesurface604 ofhousing602, such that surface608 ofinput device105 is opposite and adjacent to surface604 ofhousing602. For example, surface608 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.

In some embodiments, thefirst configuration680 is a closed position withtop side635 oflatch mechanism630 flush withsurface604 ofhousing602 and thebottom side637 oflatch mechanism630 is embedded withinhousing602 such thatlatch mechanism630 does not protrude from the housing. Thesecond configuration190 can be an open position such thatlatch mechanism630 is rotated relative to the closed position (e.g., first configuration680) and protrudes fromhousing602. In certain aspects,latch mechanism130 is operable to be rotated open fromfirst configuration180 tosecond configuration190 via the hinge coupling. The third configuration (extended position)195 can be configured such that latch mechanism is laterally extended from theback portion612 ofhousing602. As described above,latch mechanism630 can include a magnet (not shown) operationally configured to couplelatch mechanism630 to input device130 (e.g., tablet computer). In some embodiments,latch mechanism630 is operable to automatically open fromfirst configuration180 tosecond configuration190 in the presence of a magnetic field. For example,input device105 can include a magnet disposed therein where, when brought in proximity to the magnet inlatch mechanism130, the latch rises due to the magnetic attraction between the two magnets, similar to the images ofFIGS. 5E-5H.

FIG. 8A illustrates a simplified diagram of a latch structure for a protective cover700, according to an embodiments of the invention. Theprotective cover800 includes atop portion802 and alatch mechanism830 disposed therein. In a closed configuration (not shown), theprotective cover100 can be configured to fit securely over atablet computer105 in a clam shell configuration to protect it from damage (e.g., scratches, dents, shock damage, etc.), similar to the

protective covers

100 and600, shown inFIGS. 4 and 6, respectively. In some embodiments, thelatch830 is configured on a slantedtrack832 in the top case (i.e., upper portion ofprotective cover800 including top portion802), such thathinge830 can slide diagonally upwards from a flush position (i.e., flush with respect to top portion802) in response to a magnetic field. Oncehinge830 slides to the top of slantedtrack832 at, it can pivot and rotate atpivot point834 causing the hinge to open, similar to

hinges

130 and630 described above. In some cases, hinge830 can slant backwards with rotation and can be triggered by magnetic force, mechanical force, or other suitable means.

FIG. 8B depicts a process of attaching atablet computer105 to aprotective cover800, according to an embodiment of the invention. InFIG. 8B,tablet computer105 is approachinghinge830 and is sufficiently close such thathinge630 begins to slide diagonally upwards out from the flush position to thepivot point834 due to its magnetic attraction totablet computer105. As shown inFIG. 8B,latch830 is automatically raised once the tablet computer (e.g., iPad) gets close to latch830.FIG. 8C depictstablet computer105 engaged withlatch830 and securing thetablet computer105 toprotective cover800, according to an embodiment of the invention. As shown,latch830 has slid up the slantedtrack832 and is seated atpivot point834 where it is rotated backwards to secure thetablet computer105 in a fitting position, such thattablet computer105 andprotective cover800 are properly aligned in the clamshell configuration.FIG. 8D depictslatch830 moving back into a closed position once thetablet computer105 is removed, according to an embodiment of the invention. In some embodiments, gravity and weight balance will cause hinge830 to return to the closed position (i.e., hinge830 closed and flush with top portion802) once the tablet computer105 (and its magnetic field) are moved away. It should be noted that other means may be used to movelatch830 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 manipulatelatch830 to close the latch (i.e., closed and flush with top portion802) oropen latch830 to couple totablet computer105 and secure it in the clamshell configuration.

Referring back toFIG. 8D, in some embodiments,protective cover800 can include ahousing802 withsurface804, which can be the body ofprotective cover800. Housing602 can includelatch mechanism830 with atop side835 and abottom side837. Housing802 can include afront portion811, which may include a plurality of keys (not shown) disposed therein, and aback portion812, which can include thelatch mechanism830. In some aspects,housing802 can include a slanted track860 disposed withinback portion812 ofhousing802. The slanted track can have a lower end862 and an upper end866.

In certain embodiments,latch mechanism830 is slideably coupled to slanted track860 such thatlatch mechanism830 is configured to slide between the closed position at the lower end862 of slanted track860 (seeFIG. 8A) to a raised position at the upper end866 of slanted track860 (seeFIG. 8B), The latch mechanism can further be hingeably coupled to slanted track860 such thatlatch mechanism830 is configured to rotate, via the hinge coupling, from the raised position (seeFIG. 8B) to a latched position (seeFIG. 8C) at the upper end866 of slanted track860, to couple toinput device105.

In some embodiments, in the closed position theouter portion835 oflatch mechanism830 is at the upper portion866 of slanted track860 and flush withsurface804 ofhousing802, such thatlatch mechanism830 does not protrude fromsurface804 ofhousing802, and theinner portion837 of latch mechanism803 is embedded withinhousing802 such that aspects of theinner portion837 is configured at the lower end of slanted track860, as shown, e.g., inFIG. 8A. In some cases, in the raised position,latch mechanism830 is raised along slanted track860 such thatinner portion837 is at upper portion866 of slanted track860 andouter portion835 is protruding above the surface ofhousing802, as shown, e.g, inFIG. 8B. In the latched position (e.g., seeFIG. 8C),latch mechanism830 can be rotated relative to the raised position (e.g., seeFIG. 8B) such thatinner portion837 oflatch mechanism830 is operable to attach to aninput device105, e.g., as shown inFIG. 8C.

Hinge Stopper

FIGS. 9A-9E depict ahinge902 with astopper904 in aprotective cover901 to secure atablet computer903, according to an embodiment of the invention.

InFIG. 9A, thetablet computer903 is in a closed position with respect to theprotective cover901. InFIG. 9A, thehinge902 may be on a hinge that allows the hinge902 a limited angle of rotation with respect to theprotective cover901. In some embodiments the stopper may prevent thehinge902 from rotating beyond a specific angle. In some embodiments, the stopper may prevent thehinge902 and thetablet computer903 from extending beyond a 100 degree angle. Other embodiments contemplate the stopper preventing thehinge902 and thetablet computer903 from extending beyond different angles.

FIG. 9B depicts the motion of thetablet computer903 being lifted into an opened position with respect to theprotective cover901. In some embodiments, when thetablet computer903 is opened while engaged with thehinge902, the stopper in theprotective cover901 may prevent thetablet computer903 from being opened beyond a certain angle. For example, as depicted inFIG. 9B, thetablet computer903 is opened to a roughly 45 degree angle with respect to theprotective cover901. In some embodiments, thehinge902 and thetablet computer903 can be rotated to 100 degrees, at which point, the stopper prevents thehinge902 and thetablet computer903 from rotating beyond 100 degrees. In some embodiments, the application of pressure to the stopper causes the stopper to release and allows thehinge902 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 thehinge902 from rotating beyond an angle less than 100 degrees, while other prevent thehinge902 from rotating beyond an angle greater than 100 degrees.

FIG. 9C depicts thehinge902 in the closed position. Thehinge902 may be in the closed position when thetablet computer903 is disengaged from thehinge902 and theprotective cover901. In some embodiments, when thehinge902 is in a closed position, thehinge902 is contained within a recess in theprotective cover901 and is flush with the top surface of theprotective cover901.

FIG. 9D depicts a forward view of thestopper904 attached to theprotective cover901. Thehinge902 is rotatable from a closed position until thehinge902 hits thestopper904. In some embodiments, thestopper904 may be fixed to theprotective cover901 such that thestopper904 cannot be removed from theprotective cover901.

FIG. 9E depicts thehinge902 removed from the body of theprotective cover901. In some embodiments, when a large amount of force is applied by thehinge902 against thestopper904, in order to prevent structural damage to thehinge902 or theprotective cover901, thehinge902 may pop out from theprotective cover901.

Sliding Tray

FIGS. 10A-10D depict a movable tray1001 (which may also be referred to a as a movable keyboard tray) in aprotective cover1000, according to an embodiment of the invention. Themovable keyboard tray1001 may be disposed in a housing affixed, attached or molded to theprotective cover1000. A plurality of input members may be disposed on the movable tray. Themovable keyboard tray1001 may be configured to translate from a first position to a second position such that different recesses are opened in theprotective cover1000 when themovable keyboard tray1001 is translated between the first and second positions. Themovable keyboard tray1001 may be configured to translate along a predefined track in the housing. In some embodiments, themovable keyboard tray1001 may have wheels enabling translation.

FIG. 10A depicts themovable keyboard tray1001 in a first position with respect to theprotective cover1000. When themovable keyboard tray1001 is in the first position, afirst recess1002 is opened in the body of theprotective cover1000. As shown inFIG. 10B, when themovable keyboard tray1001 is in the first position, atablet computer1004 may be placed in the recess at an angle that allows a user to access themovable keyboard tray1001 and the front of thetablet computer1004. This first configuration may allow thetablet computer1004 to be placed in a position conducive to allow the user to interact with themovable keyboard tray1001 to send inputs to thetablet computer1004. In other embodiments, thetablet computer1004 may be placed in the opposite direction with the front of thetablet computer1004 facing away from themovable keyboard tray1001.

FIG. 10C depicts themovable keyboard tray1001 in a second position with respect to theprotective cover1000. When themovable keyboard tray1001 is in the second position, asecond recess1003 is opened in the body of theprotective cover1000. As shown inFIG. 10D, when themovable keyboard tray1001 is in the second position, thetablet computer1004 may be placed in the recess at an angle that allows a user to access the front of thetablet computer1004. This second configuration may allow thetablet computer1004 to be placed in a position conducive to allow the user view content on thetablet computer1004 if the user does not require accessing themovable keyboard tray1001 or sending inputs to thetablet computer1004 by themovable keyboard1001.

Magnets

FIG. 11 depicts a plurality of magnets embedded in a protective cover1100, 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 computer105 placed in slot in upright position).

Protective cover1100 may include magnet(s)1150 embedded in or around the space bar of a keyboard affixed or attached to the protective cover1100, which can be configured to match the placement of magnets disposed within thetablet computer105 to help hold the protective cover1100 andtablet computer105 in a closed (i.e., clamshell) configuration. For example,FIG. 12 depicts aspace bar1200 withmagnets1250 disposed therein, according to an embodiments of the invention.Magnets1250 may be arranged such that they are magnetically attracted to magnets embedded intablet computer105 in the closed configuration. In some embodiments,magnets1250 can be magnetically attracted to other magnetic objects. For example,magnets1250 may be attracted to a metal chassis or frame intablet computer105.Magnets1250 can further be arranged in front ofspace bar1200 and embedded in the case (i.e., the main body of protective cover1100). In some embodiments, themagnets1250 inspace bar1200 can causespace bar1200 to be magnetically attracted totablet computer105 when the protective cover is in a closed position. In some cases, the magnetic attraction causes the space bar to slightly rise to contact thetablet computer105. 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 contactingtablet105 in the closed configuration and inadvertently wearing them off over time.

Protective cover1100 can includemagnets1130 embedded in ahinge1130 to retaintablet computer105 at its back end, as described above with respect foFIGS. 4-8D.

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 ofmagnets1350 disposed in and/or around theslot1320.Magnets1350 can be arranged such that they are magnetically attracted to magnets embedded in thetablet computer105 in the active configuration. In some embodiments,magnets1350 can be magnetically attracted to other magnetic objects. For example,magnets1350 may be attracted to a metal chassis or frame intablet computer105. AlthoughFIG. 13 depicts a particular number ofmagnets1350 disposed in and/or aroundslot1320, any number of magnets can be used. For example, some embodiments may use more or fewer magnets. Furthermore,magnets1350 can be of any suitable size, shape, or composition. In some cases,magnets1350 can be embedded within the slot, disposed on the surface of theslot1320, embedded within the case (i.e., not part of the slot1320) but close enough to hold thetablet computer105 in an upright position.Magnets1250 can be arranged in any suitable configuration with respect to slot1320 as required.

In certain embodiments, the one ormore magnets1350 disposed in or aroundslot1320 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 computer105) fromslot1320 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,magnets1350 provide a magnetic force of a magnitude such that the retention strength ofslot1320 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 grasponly tablet computer105 and pick it up, thereby lifting the combination of thetablet computer105 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 abouttablet computer105 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 computer105 may be resting inslot1320 at a 72 degree angle (e.g., seeFIG. 15). By movingtablet computer105 towards 90 degrees and beyond, the retention strength of the slot can reduce such that it is easier to remove thetablet computer105 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.

According to some embodiments, additional features may be incorporated to help better secure thetablet computer105 in the active and closed configurations as shown in the various embodiments described herein. For example, friction pads can be disposed where thetablet computer105 makes contact with the protective cover in the keyboard configuration to help prevent thetablet computer105 from sliding out of position. Moreover,slot1320 can be raised from the top surface to provide additional lateral grip (e.g., mechanical force) to thetablet computer105, e.g., by contacting thetablet computer105 in a closed configuration, or providing more surface area to contact thetablet computer105 in the active configuration. The slot can be comprised of any suitable material. For instance, the slot380 may comprise a dual injected silicone.

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.

Rubberized Slot

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 aprotective cover1400 with arubberized slot1420 configured to hold atablet computer105 in an active configuration, according to an embodiment of the invention. Thetablet computer105 is facing the back end ofprotective cover1400 at a 65 degree angle.Rubberized slot1420 can be designed and/or configured to supporttablet computer105 at any suitable viewing angle or multiple viewing angles based on the shape, depth, width, materials, etc. In an exemplary case,tablet computer105 is supported upright at a 65 degree angle due, in part, to features1406 and1407 ofslot1420.FIG. 15 illustrates aprotective cover1400 with arubberized slot1420 configured to hold atablet computer105 in a front-facing, active upright configuration, according to an embodiment of the invention. Thetablet computer105 is facing the front end ofprotective cover1400 at a 72 degree angle. In an exemplary case,tablet computer105 is supported upright at a 72 degree angle due, in part, to features1408 and1409 ofslot1420. In some embodiments,rubberized slot1420 can supporttablet computer105 in a number of angles due to the shape, depth, and materials used to make theslot1420.

In some embodiments, the rubberized slot is overmolded. The overmolding can be operable to help keeptablet105 in place againstprotective cover1400 when in the closed position. For example, the overmolding can protrude high enough that it can contactprotective cover1400 in the closed position such that a friction created by the overmolded rubber can prevent the tablet from sliding around laterally while secured against theprotective cover1400.

FIG. 16 illustrates arubberized slot1420 for aprotective cover1400, according to an embodiment of the invention.Rubberized slot1420 can include aco-molding silicon rubber1424 disposed on top of an extrudedaluminum structure1422. The silicon rubber provides high friction (i.e., an improved coefficient of friction) to holdtablet computer105 in place without moving or sliding upwards or laterally while positioned inrubberized slot1420. The silicon rubber can also be used to prevent sliding whentablet computer105 is configured in the closed (clamshell) configuration with respect toprotective cover1400. In some cases, the silicon rubber at the top ofrubberized slot1420 is configured to contact a portion oftablet computer105 to prevent lateral movement in the closed configuration. Those of ordinary skill in the art would appreciate that other suitable materials can be used withrubberized slot1420 to improve the frictional properties of the rubberized slot.

In some embodiments,protective cover1400 includes a housing1402 including a front portion1411 and a back portion1412. In some cases; a plurality of keys (e.g., alphanumeric keyboard) may be disposed in the front portion1411 of the housing. Theslot1420 can be disposed in the housing1402 at any suitable location. InFIG. 14,slot1420 is disposed above the plurality of keys (not shown). The slot can span a suitable width of housing1402 and can be configured to hold an input device (e.g., tablet computer105) in any of a plurality of upright configurations. In some embodiments,slot1420 spans the entire width of housing1402. However,slot1420 may only span a portion of the width of1402. 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 portion1411 of the housing1402 (e.g., seeFIG. 15), and at least a backward-facing upright configuration such that the input device faces the back portion1412 of the housing1402 (e.g., seeFIG. 14).

As described above, slot1402, 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 housing1402 to that it can contact a surface of theinput device105 when the surface of the input device is configured to be opposite and adjacent to the surface of the housing, as shown, e.g., inFIG. 7E. The rubber compound can be silicon-based rubber compound. For example,slot1420 can be molded and comprised of an extruded aluminum structure with a co-molded silicon rubber disposed thereon. In some embodiments,slot1420 can be configured to holdinput device105 in two or more forward-facing upright configurations or two or more backward-facing upright configurations.

According to certain embodiments, one or more magnets can be disposed in or around the slot (e.g., seeFIG. 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.

Configuration Detection—Slot Switch

FIG. 17 illustrates aswitch1725 disposed in aslot1720, according to an embodiment of the invention. Theswitch1725 is configured to detect when atablet computer105 is placed in the active configuration and placed inslot1720. In some embodiments,switch1725 can detect an orientation of thetablet computer105 with respect toprotective cover1700. For example,switch1725 detect iftablet105 is in a forward facing (i.e., toward the keyboard) active configuration (e.g., similar toFIG. 15), or a rear facing (i.e., toward the latch) active configuration (e.g., similar toFIG. 14).Switch1725 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 oftablet computer105 inslot1720, as would be appreciated by one of ordinary skill in the art.

FIG. 18 illustrates aswitch1725 disposed in aslot1720 of aprotective cover1700, according to an embodiment of the invention. Although oneswitch1725 is shown, multiple switches any number of locations and/or configurations may be used to detect the presence or angle of thetablet computer105 with respect toprotective cover1700.

FIG. 19 illustrates aswitch1725 disposed in aslot1720 of aprotective cover1700, according to an embodiment of the invention.Tablet computer105 is shown in the forward facing active configuration. In certain embodiments, theswitch1725 can perform a number of other functions in addition to detecting the presence and/or orientation (angle) of the tablet computer inslot1720. For example, activatingslot1725 can be configured to turntablet computer105 from an off-state to an on-state. In some aspects, the configuration of tablet105 (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 whentablet computer105 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 ofprotective cover1700 whentablet computer105 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,switch1725 operation and the functions associated therewith are controlled by a processor (e.g.,processor2110 ofFIG. 21).

Macros

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.

FIG. 20A depicts a top view of akeyboard2000 configured to specify input sequences based on received keystrokes. Thekeyboard2000 may also be referred to as a data input device. Thekeyboard2000 may be comprised of a plurality of input members, which may also be referred to as keys or buttons, disposed on thekeyboard2000. For example, when the user interacts with thekeyboard2000 by depressing the “spacebar”button2002, while simultaneously depressing the “fn” button2001, the inputted keystrokes may be modified to simulate an open application operation. In some embodiments, this macro may open an application manager.

In another embodiment, when the user interacts with thekeyboard2000 by depressing the “delete” button2003, while simultaneously depressing the “fn” button2001, 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.

In other embodiments, other operations or sequences of keystrokes can be mapped to inputted short sequences of keystrokes.

Functional Advantages with New Keyboard Layout

Bottom Row Keys

FIG. 20A depicts a top view of akeyboard2000 according to an embodiment of the invention. Thekeyboard2000 may also be referred to as a data input device. Thekeyboard2000 may be comprised of a plurality of input members, which may also be referred to as keys, disposed on thekeyboard2000.

FIG. 20B depicts a bottom row of thekeyboard2000 inFIG. 20A shown in isolation, according to an embodiment of the invention. The bottom row of thekeyboard2000 is configured such that an oversized elongatedinput member key2002 is centrally located on the bottom row of thekeyboard2000. InFIG. 20B, the oversized elongated key2002 is depicted as the “space bar” key. The oversized elongated key2002 is adjacent to threekeys2004 of generally the same dimensions on the left side of the oversized elongated key2002. In some embodiments, each one of the threekeys2004 has one dimension in common with the oversized elongated key2051. InFIG. 20B, the three keys to the left of the oversized elongated key2051 are depicted as a “fn” (or function) key, an “alt/option” (or alternate/option) key, and a “cmd” (or command) key.

The oversized elongated key2002 is also adjacent to a single input member or key2006, located to the right of the oversized elongated key2002. The single key2006 may also have dimensions identical to the threekeys2004 to the left of the oversized elongated key2002. InFIG. 20B, the key to the right of the oversized elongated key2002 is depicted as a “ctrl” (or control) key.

In some embodiments, and as depicted inFIG. 20B, the widths of the oversized elongated key2002, the threekeys2004, and the single key2006, are of generally the same dimension.

Adjacent to the single key2006, along the bottom row of thekeyboard2000 are four smaller sized input members orkeys2008. In some embodiments, the smallersized keys2008 may have widths that are half or less than half of the widths of the oversized elongated key2002. InFIG. 20B, the smallersized keys2008 are depicted as the directional or arrow keys (i.e., the up, down, left, and right keys).

In other embodiments, the functions of the oversized elongated key2002, the threekeys2004, the single key2006, and the smallersized keys2008 may be different than those depicted inFIG. 20B.

Second Row Key Sizes

FIG. 20C depicts a portion of thekeyboard2000 fromFIG. 20A shown in isolation according to an embodiment of the invention. In the row above the bottom row of thekeyboard2000, above the smallersized keys2008, thekeyboard2000 may house a set ofkeys2010. InFIG. 20C, the set ofkeys2010 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 ofkeys2010. In this embodiment, the size of the “shift”/“caps lock” key is similar to the two adjacent keys in the set ofkeys2010. In other embodiments, the functions of the set ofkeys2010 may be different than those depicted inFIG. 20C.

InFIG. 20C, the combined length of the smallersized keys2008 is superimposed over the set ofkeys2010. The combined length of the smallersized keys2008 is depicted as a dashedline2012. As depicted inFIG. 20C, the combined length of the set ofkeys2010 extends beyond the combined length of the smallersized keys2008. In the embodiment depicted inFIG. 20C, a number of the set ofkeys2010 equal to the combined length of the smallersized keys2008 is less than three. In some embodiments, the number of the set ofkeys2010 equal to the combined length of the smallersized keys2008 is at least two-and-a-half. In other embodiments, the number of the set ofkeys2010 equal to the combined length of the smallersized keys2008 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.

Left Side Keys

In some embodiments, the left side of thekeyboard2000 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 keyboard2050.FIG. 20D depicts a portion of thekeyboard2000 fromFIG. 20A shown in isolation according to an embodiment of the invention. As depicted inFIG. 20D, the left side of the keyboard2050 includes a “□” (or “Home/Esc”)key2020, a “Q”/“lock” key2022, an “A”/“tab” key2024, a “shift”/“caps lock” key2026, and the “fn” (or function)key2028. In this embodiment, the functions of the “shift” key and “caps lock” key, which are typically separate keys, has been combined onto asingle key2026. 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 key2024. The “Q” has been merged with the “lock” key on key2022. As depicted inFIG. 20D, the relative positions of the

merged alphabet keys

2022 and2024 are generally the same as on typical keyboards, providing a consistency to a user. In some embodiments, the functions of keys2020-2028 may be different than those depicted inFIG. 20D.

In some embodiments, key2024 (the “A” key) may be elongated and have a larger length than the other 25 alphabet character keys. InFIG. 20D, the length of key2024 is represented byline segment2030. In such embodiments, key2022 (the “Q” key) may have the same dimensions as all other alphabet keys on thekeyboard2000. In some embodiments, key2022 may be the same dimensions as the other alphabet keys, and may be smaller than key2024.Key2026 may have a slightly larger width than the alphabet keys.

System Diagram

FIG. 21 is a simplified block diagram of anexemplary system2100 configured to operate the various protective cover systems discussed herein, according to certain embodiments of the invention. Thesystem2100 includes aprocessor2110, apower management system2120, a power supply (e.g., batteries, rechargeable batteries, accumulator(s), renewable power sources (e.g., solar))2140, anoutput device2150, akeyboard matrix2160, acommunications block2170, andconfiguration detection system2180. Each of the system blocks2120-2170 can be in electrical communication withprocessor2110.System2100 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, somesystems2100 may include fewer systems (e.g., no photovoltaic elements, no keyboard, etc.) as required by design.

In certain embodiments,processor2110 comprises one or more microprocessors (μCs) and is configured to control the operation ofsystem2100. Alternatively,processor2110 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. Theprocessor2110 can be configured to operate the protective cover systems (or more generally, an input device) described herein.

In certain embodiments,power management system2120 ofsystem2100 is configured to manage power distribution, recharging, power efficiency, and the like.Power management system2120 can control the power distribution by thebatteries2140 or other power sources (e.g., photovoltaic cells).

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 system2170 can be controlled byprocessor2110 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,system2100 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 chargebatteries2140 and simultaneously support data communication betweensystem2100 and the input device.

In some embodiments,processor2110 integrates processing and RF communication functions, in addition to scanning and controllingkeyboard matrix2160 and/or other input devices, monitoring configuration detection mechanisms2180 (e.g., the relay switches,mechanical switches1725, etc., used to detect keyboard modes, media button modes, closed configurations, etc.), controlling LEDs (not shown) and the like.Keyboard matrix2160 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 ofprocessor2110 andcommunication system2170.Keyboard2160 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 matrix2160 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.

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.

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.