Abstract:
Notebook computers having an integrated wrist support device are disclosed. Also disclosed are wrist supports for use with notebook computer keyboards, a wrist support kit, and notebook computer kits.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS  
       [0001]    This is a continuation-in-part of U.S. patent application Ser. No. 09/165,658 filed Oct. 3, 1998.  
     
    
     
       FIELD OF THE INVENTION  
         [0002]    The invention relates to notebook computers and wrist supports.  
         BACKGROUND OF THE INVENTION  
         [0003]    Frequent use of computer keyboards can lead to hand strain and repetitive motion injuries such as Carpal Tunnel Syndrome. To prevent these injuries, cushioned pads have been developed that elevate and support a computer operator&#39;s wrists while the operator is using a computer keyboard.  
           [0004]    A conventional wrist support pad is typically composed of a moldable, gel-like or sponge-like substance that is encased in a non-porous sheath and supported on its bottom by a rigid or semi-rigid base. It is rectangular in shape with a length generally greater than 18 inches and a width usually between about 3 and 5 inches. The length of the pad is fashioned so that it overlaps or approximates the width of a standard keyboard. The width of the pad is designed to accommodate an average person&#39;s wrist. Because conventional wrist support pads are generally not affixed to a keyboard or a computer, they may be placed in any one of a multitude of positions to suit a particular computer operator and/or a particular keyboard.  
           [0005]    Although wrist support pads come in a variety of shapes and sizes, most are designed for use with the standard full-size keyboards that are commonly used with desktop computers, and not for the type of keyboards that are integrated within the body of portable notebook computers. Thus, existing wrist support pads are often awkward to use with notebook computers. For example, notebook computers often have keyboards that are placed several inches away from the front edge of the computer body. Positioning a wrist support pad immediately in front of the front edge of the computer body leaves the space between the pad and the keyboard too large for comfortable use by a person with average size hands. Moreover, positioning conventional wrist support pads on top of a notebook computer body immediately in front of the keyboard usually interferes with the use of other functional components of the computer, such as its pointing device (e.g., touchpad or trackball), microphone, or speakers.  
         SUMMARY OF THE INVENTION  
         [0006]    The invention relates to notebook computers having built-in wrist support devices. The invention also relates to wrist support devices that are compatible with conventional notebook computers.  
           [0007]    In one aspect, the invention features a notebook computer having a computer body, a keyboard, and a wrist support that is integrated within the computer body. In one variation of this notebook computer, the wrist support is integrated within the top panel of the computer body. In another variation, the wrist support is integrated within the front panel of the computer body.  
           [0008]    In preferred embodiments, the notebook computers of the invention feature a wrist support that is reversibly inflatable. Some of these notebook computers further feature an inflation controller that includes a fluid pump and/or a bleed valve. In some variations, these notebook computers also feature an inflation control switch that regulates the inflation controller.  
           [0009]    Also within the invention is a wrist support for use with a notebook computer keyboard. This wrist support includes a base having one or more flat surfaces, wherein the largest of these flat surfaces has a surface area of less than about 60 cm 2 . Some embodiments of this wrist support include a fastener for attaching the wrist support to a notebook computer. In the preferred embodiment, this wrist support features a reversibly inflatable bladder.  
           [0010]    The invention also features a wrist support kit that includes the aforementioned wrist support with fastener, and an acceptor that can be affixed to a notebook computer in order to supply a connection site for the fastener.  
           [0011]    Another feature of the invention is a notebook computer kit that includes a wrist support, a fastener, an acceptor, and a notebook computer. Some embodiments of this notebook computer kit also contain instructions for using (i.e., attaching the wrist support to the notebook computer) the notebook computer kit.  
           [0012]    Also within the invention is a notebook computer including: a computer body having a front panel and a top panel, a keyboard, and a wrist support, the wrist support being compressible and integrated within the computer body. In various versions of this notebook computer the wrist support can be integrated within the top panel or the front panel of the computer body. In the latter, the front panel of the computer body can include a panel door behind which the wrist support can be stowed, and the panel door can be reversibly configurable between an open position and a closed position.  
           [0013]    In notebook computers within the invention, the wrist support can be reversibly inflatable. For example, the notebook computer can further include an inflation controller fluidly connected to the wrist support. This inflation controller can include a fluid pump mounted on the notebook computer. In some variations, the inflation controller can include a bleed valve such as one that automatically opens when it is subjected to a predetermined threshold level. In other variations, the notebook computer can further include an inflation control switch operatively connected to the inflation controller, e.g., an inflation control switch that is switchable between an inflate position, a stop position, and a deflate position, whereby placement of the inflation control switch in the inflate position activates the inflation controller to inflate the wrist support, placement of the inflation control switch in the deflate position activates the inflation controller to deflate the wrist support, and placement of the inflation control switch in the stop position inactivates the inflation controller such that it neither inflates or deflates the wrist support. The inflation control switch can be a push-button type switch.  
           [0014]    The notebook computers of the invention can also feature a wrist support that includes an elastic bladder, the bladder being fillable with a compressible substance such as a synthetic sponge (e.g., latex or synthetic rubber) and/or a fluid such as air.  
           [0015]    The notebook computers of the invention, in some varaitations, also feature a wrist support that is reversibly detachable from the computer body. The wrist support can, for example, be attached to the computer body by a hook and loop type connector, a magnetic connector, or a mechanical connector.  
           [0016]    Notebook computers within the invention can include a computer body having a front panel and a top panel, a keyboard, and a wrist support, the wrist support being filled with a gel and integrated within the computer body (e.g., into the front panel or top panel of the computer body). In versions where the wrist support is integrated within the top panel of the computer body, the computer body can further include at least one depression in the front panel of the computer body, the at least one depression being adapted to engage the wrist support.  
           [0017]    Other notebook computers within the invention include a computer body having a front panel and a top panel, a keyboard, and at least a first and a second depression in the front panel of the computer body, the first depression being adapted to engage a first wrist support, and the second depression being adapted to engage a second wrist support. These notebook computers can further include a first gel-filled wrist support and a second gel-filled wrist support, the first gel-filled wrist support being mounted in the first depression, and the second gel-filled wrist support being mounted in the second depression. In addition these notebook computers can further include a pointing device, the pointing device being mounted on the computer body between the first depression and the second depression.  
           [0018]    As used herein, the word “keyboard” is used in a generic sense to refer to any device that is used in a repetitive manner to input data into a computer, calculator or like device.  
           [0019]    When one object is “integrated” within a second object, it is physically and functionally affixed to and designed to operate in accord with the second object. Thus, when a wrist support is “integrated” within a computer body, it is attached to the computer body in such a manner that both wrist support and computer body operate as one unit.  
           [0020]    Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention, suitable methods and materials are described below. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety. In the case of conflict, the present specification, including definitions will control. In addition, the particular embodiments discussed below are illustrative only and not intended to be limiting.  
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0021]    The invention is pointed out with particularity in the appended claims. The above and further advantages of this invention may be better understood by referring to the following description taken in conjunction with the accompanying drawings, in which:  
         [0022]    [0022]FIG. 1 is a perspective view of one embodiment of the invention;  
         [0023]    [0023]FIG. 2A is a right side view of the embodiment shown in FIG. 1, shown with the wrist support deflated and the video display support in the closed position;  
         [0024]    [0024]FIG. 2B is a right side view of the embodiment shown in FIG. 1, shown with the wrist support deflated and the video display support in the open position;  
         [0025]    [0025]FIG. 2C is a right side view of the embodiment shown in FIG. 1, shown with the wrist support inflated and the video display support in the open position;  
         [0026]    [0026]FIG. 2D is a side view of the wrist support, inflation controller, and inflation control switch of the embodiment shown in FIG. 1, shown with the wrist support fluidly connected to the inflation controller, and the inflation control switch operatively connected to the inflation controller.  
         [0027]    [0027]FIG. 3A is a perspective view of another embodiment of the invention, shown with the wrist support panel door in the closed position;  
         [0028]    [0028]FIG. 3B is a perspective view of the embodiment shown in FIG. 3A, shown with the wrist support panel door in the open position and the wrist support deflated;  
         [0029]    [0029]FIG. 3C is a perspective view of the embodiment shown in FIG. 3A, shown with the wrist support panel door in the open position and the wrist support inflated;  
         [0030]    [0030]FIG. 4A is a side view of a detachable wrist support shown in an uninflated position;  
         [0031]    [0031]FIG. 4B is a side view of the detachable wrist support featured in FIG. 4A shown in an inflated position;  
         [0032]    [0032]FIG. 4C is a side view of a notebook computer and a detachable wrist support, shown with the wrist support detached from the notebook computer;  
         [0033]    [0033]FIG. 4D is a side view of a notebook computer and a detachable wrist support, shown with the wrist support attached to the notebook computer and in an uninflated position;  
         [0034]    [0034]FIG. 4E is a side view of a notebook computer and a detachable wrist support, shown with the wrist support attached to the notebook computer and in an inflated position; and  
         [0035]    [0035]FIG. 5 is a perspective view of a notebook computer and a detachable wrist support, shown with the wrist support attached to the notebook computer.  
         [0036]    [0036]FIG. 6 is a cross-sectional view taken through the body of a notebook computer having a gel-filled wrist support integrated in the computer body.  
     
    
     DETAILED DESCRIPTION  
       [0037]    The invention encompasses notebook computers having an integrated wrist support as well as standard notebook computer components such as a keyboard, pointing device and computer body. As can be seen by comparing different models of currently available notebook computers (e.g., IBM Thinkpad 770™ and Compaq Presario® computers), these standard components may be arranged in myriad different orientations. This notwithstanding, two types of conventional layouts predominate in the marketplace. The first of these has a keyboard oriented on top of the computer body near the video display (see, e.g., FIG. 1). This layout features a relatively large unoccupied space on top of the computer body in the area between the keyboard and the front edge of the computer body. A pointing device such as a touchpad is usually located within this space. In the second type of conventional layout, the keyboard is placed on top of and near the front edge the computer body (see, e.g., FIG. 3A). This layout has only a very small unoccupied space on top of the computer body in the area between the keyboard and the front edge of the computer body.  
         [0038]    The below described preferred embodiments illustrate adaptations of wrist supports for use with notebook computers having their components arranged in each of these two conventional layouts. Nonetheless, from the description of these embodiments, other notebook computers of the invention can be readily fashioned by repositioning and/or making slight modifications to the components discussed below.  
         [0039]    In brief overview, referring to FIGS. 1, 2A,  2 B,  2 C, and  2 D, an embodiment of notebook computer  5  includes a computer body  10  having a front panel  11 , side panels  12  (right side panel is shown; left side panel is not shown), a top panel  13   a , a bottom panel  13   b  and a back panel  14 ; a video display support  15  containing a video display  16 ; wrist supports  17   a  (left) and  17   b  (right); a pointing device  18 ; a keyboard  19 ; an inflation controller  20 ; an inflation control switch  21 ; a fluid connector  28 ; and a switch connector  29 .  
         [0040]    The notebook computer  5  shown in FIGS. 1, 2A,  2 B, and  2 C shares many of the same components featured in conventional notebook computers. For example, the bulk of the physical structure of notebook computer  5  consists of computer body  10  and video display support  15 . Each of these serve as a supportive and protective housing for other components of the computer. Both computer body  10  and video display support  15  are typically composed of a hard durable material such as a plastic (e.g., polyvinyl chloride) or a metal alloy (e.g., a magnesium alloy). Computer body  10  has a rectangular polyhedron shape formed by front panel  11 , side panels  12 , top panel  13   a , bottom panel  13   b  and back panel  14 . It is movably attached to video display support  15  by a hinge such that video display support  15  can be reversibly positioned immediately on top of and roughly parallel to top panel  13   a  (i.e., in the closed position; see FIG.  2 A for example) or at various angles away from top panel  13   a  (i.e., in an open position; see FIGS. 2B and 2C for example). The interior of computer body  10  houses various functional parts of the computer such as a central processing unit (CPU), a hard drive, a floppy disk drive, a CD-ROM drive, a battery, etc. The exterior of computer body  10  features devices such as pointing device  18 , keyboard  19 , a power switch, a microphone, speakers, etc. Video display support  15  houses video display  16  (e.g., an LCD video monitor) which is operatively linked to other functional parts of the computer. The above features are functionally connected in a similar manner as in conventional notebook computers.  
         [0041]    Also included within the notebook computer  5  shown in FIGS. 1, 2A,  2 B, and  2 C are wrist supports  17   a  (left) and  17   b  (right), inflation controller  20 , and inflation control switch  21 . In the embodiment shown, wrist supports  17   a  (left) and  17   b  (right) are integrated into computer body  10  at the portions of top panel  13   a  on each side of pointing device  18  in a position immediately forward of keyboard  19 . This orientation is such that the user of notebook computer can comfortably rest his wrists or palms on wrist supports  17   a  (left) and  17   b  (right) while his fingers are located in a position convenient for typing on keyboard  19 . Wrist supports  17   a  and  17   b  are basically bladders composed of an elastic material (e.g., latex or synthetic rubber) that are fillable with a fluid such as a gas (e.g., air, carbon dioxide, or nitrogen) and fluidly connected to a fluid source (e.g., atmospheric air) via fluid connector  28  (see FIG. 2D), a device for transferring fluid from one source to another (e.g., non-porous tubing or the like). They may optionally be covered with fabric (e.g., nylon, polyester, etc.) to enhance their comfort and durability. Each wrist support  17  is reversibly expandible in size by adding or decreasing the amount of fluid contained therein. Wrist supports  17   a  and  17   b  may be fluidly connected to each other to form one structure (i.e., wrist support  17 ). Alternatively, wrist supports  17   a  and  17   b  can lack a fluid connection to each other. The latter configuration is preferred where it is desirable to have left and right wrist supports that are independently adjustable.  
         [0042]    Inflation controller  20  is a device that regulates the amount of fluid in wrist support  17 . In a preferred embodiment, inflation controller  20  comprises a two-way fluid pump that is mounted at a predetermined location on notebook computer  5  (e.g., on computer body  10  at side panel  12  as shown in FIG. 1). In another preferred embodiment, inflation controller  20  comprises a fluid pump and a bleed valve. In either case, as shown in FIG. 2D, the fluid pump (and the bleed valve in the latter configuration) of inflation controller  20  is connected to wrist support  17  and a fluid source (e.g., the air in the atmosphere surrounding notebook computer  5 ) by fluid connector  28  such that the fluid may reversibly flow from the fluid source through inflation controller  20  into wrist support  17 . Where wrist supports  17   a  and  17   b  are not fluidly connected to each other, inflation controller  20  is separately connected to wrist support  17   a  and wrist support  17   b  such that it independently controls inflation of each wrist support (e.g., there is a separate fluid pump for each wrist support).  
         [0043]    Activation of inflation controller  20  causes fluid to flow through fluid connector  28  between the fluid source (e.g., atmospheric air) and wrist support  17 . Activation of the fluid pump portion of inflation controller  20  in a forward direction causes fluid to move from the fluid source through inflation controller  20  into wrist support  17 , thus inflating wrist support  17 . Activation of the fluid pump of inflation controller  20  in a reverse direction causes fluid to move from wrist pad  17  through inflation controller  20  out to the fluid source (e.g., the atmosphere), thus deflating wrist support  17 . In the configuration of inflation controller  20  that includes a bleed valve, opening the bleed valve causes fluid to flow out of wrist support  17  fluid connector  28  through fluid connector  28  into the atmosphere via inflation controller  20 , thus deflating wrist support  17 . In some configurations, the bleed valve portion of inflation controller  20  can be set to automatically open when a threshold fluid pressure is reached. Thus, when wrist support  17  reaches a certain predetermined size or pressure, the bleed valve opens and thereby releases fluid from wrist support  17 . In this manner, the maximum size to which wrist support  17  can be expanded can be automatically controlled.  
         [0044]    Inflation control switch  21  is a switch device that regulates the operation of inflation controller  20 . It is mounted on a predetermined site on notebook computer  5  that is accessible to a user. For example, in the embodiment shown in FIG. 1, inflation control switch  21  is affixed to computer body  10  on top panel  13   a  near video display support  15 . As shown in FIG. 2D, inflation control switch  21  is operatively linked (e.g., mechanically, hydraulically, or electrically) to inflation controller  20  via switch connector  29 , a device that operatively links inflation control switch  21  to inflation controller  20  (e.g., an electrical wire, a mechanical cable, or hydraulic hosing). It has an inflate position, a stop position, and a deflate position. When placed in the inflate position, inflation control switch  21  signals inflation controller  20  to activate its fluid pump to send fluid into and thereby inflate wrist support  17 . When placed in the deflate position, inflation control switch  21  signals inflation controller  20  to reverse its fluid pump and/or open its bleed valve to thereby deflate wrist support  17 . When placed in the stop position, inflation control switch  21  signals inflation controller  20  to either stop inflating or stop deflating wrist support  17 .  
         [0045]    An overview of the operation of the foregoing preferred embodiment is shown in FIGS. 2A, 2B, and  2 C. In FIG. 2A, notebook computer  5  is shown in the closed position with wrist support  17  deflated. Deflation of wrist support  17  permits video display support  15  to be placed immediately on top of and roughly parallel to top panel  13   a  so that notebook computer  5  is in a compact configuration (i.e., with video display support  15  in the closed position) that enhances the portability of notebook computer  5 . To operate notebook computer  5 , a user moves video display support  15  to an open position such that the user can view video display  16  (see, e.g., FIG. 2B) and then boots up the computer. To utilize wrist support  17 , the user then places inflation control switch  21  in the inflate position, thus activating the fluid pump of inflation controller  20  to send fluid into wrist support  17  via fluid connector  28 . When wrist support  17  is inflated to the desired size (one example is depicted in FIG. 2C), the user then places inflation controller switch  21  in the stop position to halt fluid flow into wrist support  17 . Thus, in this configuration, the user can operate notebook computer  5  much like a conventional notebook computer except that his wrists or palms are comfortably propped on inflated wrist support  17 . Because wrist support  17  can be inflated to an infinite number of positions up to a maximum inflation position, each different user can adjust the size of wrist support  17  to his liking.  
         [0046]    When the user has completed operating notebook computer  5 , he can restore it to the compact and portable configuration shown in FIG. 2A by placing inflation control switch  21  in the deflate position. In this position, inflation control switch  21  causes deflation of wrist support  17  by activating the fluid pump of inflation controller  20  to remove the fluid from wrist support  17  and/or opening the bleed valve portion of inflation controller  20  to thereby release the fluid from wrist support  17 . In some variations of this embodiment, the user can apply pressure to wrist support  17  (e.g., by manually squeezing wrist support  17 ) to hasten the release of fluid from (and thus deflation of) wrist support  17 . When a sufficient amount of fluid is removed from wrist support  17 , inflation control switch  21  is placed in the stop position. The user can then place video display support  15  immediately on top of and roughly parallel to top panel  13   a  (FIG. 2A).  
         [0047]    In another variation of this preferred embodiment, operation of inflation control switch  21  is automatic or semiautomatic. For example, as shown in FIGS. 1, 2A,  2 B, and  2 C, inflation control switch  21  is positioned on top panel  13   a  adjacent to video display support  15 . In this variation, inflation control switch  21  is designed as a pushbutton-type device (e.g., a spring-loaded piston movably mounted within an open-ended cylinder) that has a depressed position where the top of the pushbutton is approximately flush with the surface of top panel  13   a , and non-depressed positions where the pushbutton extends perpendicularly away from top panel  13   a  for various short distances (such as 0.5, 1, or 2 cm) up to a maximum non-depressed position in which the pushbutton is fully extended. The pushbutton-type device is biased so that it is in the maximum non-depressed position in the absence of extraneous forces.  
         [0048]    When the video display support of notebook computer  5  is in the closed position (such as shown in FIG. 2A), the pushbutton of inflation control switch  21  is held in the depressed position by contact from a portion of video display support  15 . This position corresponds to the stop position discussed above (i.e., inflation controller  20  is inactivated). When video display support  15  is placed in an open position, the pushbutton of inflation control switch  21  rises to a non-depressed position as a result of its bias. This movement from a depressed position to a non-depressed position places inflation control switch  21  in the inflate position and thereby signals inflation controller  20  to send fluid into wrist support  17 . After wrist support  17  reaches a preset inflation level, inflation controller  20  automatically returns to an inactivated state (e.g., inflation controller  20  has a pressure sensor that turns off the fluid pump of inflation controller  20  when a threshold pressure is detected). Because the pushbutton of inflation control switch  21  abuts against a portion of video display support  15 , lowering video display support  15  to return it to the closed position gradually pushes inflation control switch  21  downward toward the depressed position. This downward push places inflation control switch  21  in the deflate position and thereby signals inflation controller  20  to remove fluid from wrist support  17 . With wrist support  17  deflated, video display support  15  can be returned to the closed position in which inflation control switch  21  is in the depressed or stop position.  
         [0049]    Another preferred embodiment of the invention is shown in FIGS. 3A, 3B, and  3 C. Similarly to the notebook computer discussed above and shown in FIGS. 1, 2A,  2 B,  2 C and  2 D, this embodiment is a notebook computer that includes a computer body  10  having a front panel  11 , side panels  12  (right side panel is shown; left side panel is not shown), a top panel  13   a , a bottom panel  13   b  (not shown) and a back panel  14  (not shown); a video display support  15  containing a video display  16 ; a wrist support  17 ; a keyboard  19 ; an inflation controller  20 ; an inflation control switch  21 ; a fluid connector  28  (not shown); and a switch connector  29  (not shown). To illustrate how the above components of the notebook computers of the invention can be arranged in different orientations, notebook computer  5  in FIG. 1 can be compared to notebook computer  5  in FIG. 3A. For example, in the embodiment shown in FIG. 3A, keyboard  19  is oriented closer to front panel  11  than in the embodiment shown in FIG. 1. Likewise, inflation control switch  21  is mounted on top panel  13   a  near front panel  11  in the embodiment shown in FIG. 3A, whereas it is mounted near video display support  15  in the embodiment shown in FIG. 1.  
         [0050]    In the embodiment shown in FIGS. 3A, 3B, and  3 C, wrist support  17  of notebook computer  5  is contained within computer body  10  immediately behind front panel  11 . This embodiment is preferred for notebook computers having a keyboard placed on top panel  13   a  at a location near front panel  11  (e.g., IBM Thinkpad 770™) as the lack of available space on the portion of top panel  13   a  in front of keyboard  19  does not limit placement of wrist support  17 . This embodiment optionally features a wrist support panel door  22  that is composed of a material similar to that composing computer body  10  (such as plastic or metal). Wrist support panel door  22  is typically rectangular in shape, and attached to and integrated within front panel  11 . As an example, FIGS. 3A and 3B show wrist support panel door  22  hingedly attached to the bottom of front panel  11 . Wrist support panel door  22  has a closed position and open positions. In the closed position, wrist support panel door  22  is reversibly locked into computer body  10  by wrist support panel door clasp  22   a  (any number of such clasps can be used; FIG. 3A shows two such clasps). One open position of wrist support panel door  22  is shown in FIG. 3B. Although wrist support panel door  22  is not required for the function of this embodiment, it is generally a preferred component as it protects wrist support  17  from damage and provides a convenient mechanism for storing wrist support  17  while it is not being used. One exemplary alternative configuration of this embodiment (not shown) has wrist support  17  integrated into computer body  10  at front panel  11  with front panel  11  having a cut-out portion through which wrist support  17  can expand. This configuration resembles notebook computer  5  shown in FIG. 3B except that wrist support panel door  22  is omitted.  
         [0051]    In the preferred embodiment, wrist support  17  is a single unit (albeit, multiple wrist supports could also be used) that is essentially a bladder composed of an elastic material (e.g., latex or synthetic rubber). This bladder is fillable with a fluid such as a gas (e.g., air, carbon dioxide, or nitrogen) and fluidly connected to a fluid source (e.g., atmospheric air) via fluid connector  28  (not shown, but see FIG. 2D for a similar example), so that wrist support  17  can be reversibly expanded by adding or decreasing the amount of fluid contained therein. Wrist support  17  is shaped (e.g., the elastic material is pre-molded) so that when expanded it develops a shape conducive for comfortable typing by an operator of the notebook computer. It may optionally be covered with fabric (e.g., nylon or the like) to enhance its feel (i.e., comfort for a user) and/or durability.  
         [0052]    The components of this embodiment function quite similarly to the components of the embodiment shown in FIGS. 1, 2A,  2 B, and  2 C. For example, in this embodiment, inflation controller  20  also comprises a two-way fluid pump (or a fluid pump and a bleed valve) that is mounted at a predetermined location on notebook computer  5 . It is also connected to wrist support  17  and a fluid source (e.g., the air in the atmosphere surrounding notebook computer  5 ) via fluid connector  28  (not shown) such that the fluid can reversibly flow from the fluid source through inflation controller  20  into wrist support  17 . Activation of the fluid pump portion of inflation controller  20  in a forward direction causes fluid to flow into (and thereby inflate) wrist support  17 . Reversing the direction of the fluid pump removes fluid from (and thereby deflates) wrist pad  17 . Where a bleed valve is included as part of inflation controller  20 , opening the bleed valve causes fluid to flow out of (and thereby deflate) wrist support  17 .  
         [0053]    This embodiment also features an inflation control switch  21  for regulating the operation of inflation controller  20 . It is placed at a predetermined site on notebook computer  5  (in FIGS. 3A, 3B, and  3 C it is shown on top panel  13   a  near front panel  11  and right side panel  12 ), and is operatively linked to inflation controller  20  via switch connector  29  (not shown; but see FIG. 2D for a similar example). It has an inflate position, a stop position, and a deflate position. When placed in the inflate position, inflation control switch  21  signals inflation controller  20  to activate its fluid pump to send fluid into and thereby inflate wrist support  17 . When placed in the deflate position, inflation control switch  21  signals inflation controller  20  to reverse it fluid pump and/or open its bleed valve to thereby deflate wrist support  17 . When placed in the stop position, inflation control switch  21  signals inflation controller  20  to either stop inflating or stop deflating wrist support  17 .  
         [0054]    The operation of this preferred embodiment is very similar to the operation of the embodiment shown in FIGS. 2A, 2B,  2 C, and  2 D. In FIG. 3A, notebook computer  5  is shown with wrist support  17  deflated and wrist support panel door  22  in the closed position. To inflate wrist support  17 , the user first opens wrist support panel door  22  and then places inflation control switch  21  in the inflate position, thus activating the fluid pump of inflation controller  20  to send fluid into wrist support  17 . In one variation of this embodiment, wrist support panel door clasp  22   a  can be designed so that wrist support panel door  22  automatically opens while wrist support  17  is being inflated. For example, wrist support panel door clasp  22   a  can be a hook and loop-type connector (e.g., Velcro®) that comes apart when subjected to a predetermined force such as the pressure caused by the inflation of wrist support  17 . When wrist support  17  is inflated to a desired size (e.g., as depicted in FIG. 3C), the user then places inflation controller switch  21  in the stop position to cut off fluid flow into wrist support  17 . To restore the compact and portable configuration of notebook computer  5  (as shown in FIG. 3A), inflation control switch  21  is placed in the deflate position. This causes inflation controller  20  to remove the fluid from wrist support  17  as described supra. In some cases, the user can apply pressure to wrist support  17  to hasten deflation of wrist support  17 . When a sufficient amount of fluid is removed from wrist support  17 , inflation control switch  21  can be placed in the stop position. The deflated wrist support  17  can be stowed in computer body  10  and secured by closing wrist support panel door  22 .  
         [0055]    As shown in FIGS. 4A, 4B,  4 C,  4 D,  4 E, and  5 , another preferred embodiment of the invention is a wrist support that is detachably affixable to the body of a notebook computer. In this embodiment, wrist pad  17  includes an inflation controller  20 , a base  23 , a bladder  24 , bladder cover  25 , and a fastener  26 . To facilitate compatibility with notebook computers, the total area of the largest flat surface of wrist pad  17  is less than about 60 cm 2  (e.g., 25, 30, 45, 50, or 55 cm 2 ). The specific dimensions and shape of wrist pad  17  can be chosen to match the particular layout of a given notebook computer.  
         [0056]    Although, in some embodiments, base  23  can be used alone as a wrist support (especially if base  23  is composed of a soft, compressible material such as synthetic sponge such as latex or synthetic rubber), in the particular embodiment shown in FIGS. 4A, 4B,  4 C,  4 D,  4 E, and  5 , base  23  is a structure that forms and maintains the shape of the bottom portion of wrist pad  17 . It is roughly rectangular in shape and composed of a rigid or semi-rigid material such as plastic or reinforced rubber. Base  23  also serves as a structure on which to mount other components of wrist pad  17  such as bladder  24 , bladder cover  25 , and/or fastener  26 .  
         [0057]    Bladder  24  is fixedly attached to base  23 . It is essentially an elastic balloon (e.g., a latex or synthetic rubber balloon) that is fillable with a compressible substance such as a gas (e.g., air, carbon dioxide, or nitrogen) or a sponge-like material (e.g., latex or synthetic rubber). By adding or decreasing the amount of compressible substance contained within bladder  24  (e.g., via a connection to a source of said substance), wrist support  17  can be reversibly expanded.  
         [0058]    In a preferred configuration of this embodiment, the compressible substance is atmospheric air. In this configuration, bladder  24  is biased so as to be in an expanded configuration when not subjected to an extraneous force (much like the inflation bulb in a standard manual sphygmomanometer). Bladder  24  communicates with the atmosphere via inflation controller  20 , which in this embodiment is a valve directly attached to bladder  24  that has an open and a closed position. When inflation controller  20  is in the open position, air from the atmosphere can flow in and out of bladder  24 . When inflation controller  20  is in the closed position, air from the atmosphere cannot flow in or out of bladder  24 . Because of bladder  24 &#39;s bias, when inflation controller  20  is in the open position bladder  24  is in an inflated state (see FIG. 4B). When the inflation controller  20  is then placed in the closed position, air cannot escape bladder  24 , and thus wrist support  17  is stabilized in the inflated state. When inflation controller  20  is left in the open position, a user can compress (e.g., by manually squeezing) bladder  24  to a desired inflation state and then close inflation controller  20  so that the chosen inflation state is stabilized (see FIG. 4A).  
         [0059]    Similarly, a user can partially or completely deflate wrist support  17  by partially or fully compressing bladder  24 . This deflated state can be stabilized by either continuing the compressing force, or by placing inflation controller  20  in the closed position. In this manner the size of wrist support  17  can be minimized to facilitate its portability and/or storage. In some variations, wrist support  17  can be deflated while attached to a notebook computer so that the video display support of the notebook computer can be placed in the closed position without wrist support  17  being detached.  
         [0060]    Other components of the wrist support device shown in FIGS. 4A, 4B,  4 C,  4 D,  4 E, and  5  include bladder cover  25 , fastener  26 , and acceptor  27 . Bladder cover  25  is a piece of fabric (e.g., nylon or the like) that is placed over bladder  24  (as shown in FIGS. 4A and 4B) in order to reinforce and protect bladder  24 , and/or to enhance the esthetics or feel (for user comfort) of wrist pad  17 . Fastener  26  and acceptor  27  are devices used for attaching wrist support  17  to notebook computer  5 .  
         [0061]    Fastener  26  is attached to the bottom portion of wrist support  17 . It can be any type of device that can mediate the attachment of wrist support  17  to the surface of computer body  10  (e.g., an adhesive tape, a magnet, or a mechanical lock). In the preferred embodiment shown in FIGS. 4A, 4B,  4 C,  4 D, and  4 E, fastener  26  is a one component of a hook and loop-type connector such as Velcro® (i.e., fastener  26  is the hook or the loop component of the connector). In this configuration, to affix wrist support  17  to notebook computer  5 , acceptor  27  is first mounted (e.g., using an adhesive) to an unoccupied area on the surface of computer body  10  (see FIG. 4C). Acceptor  27  is one component of a two component connector (e.g., a hook and loop-type connector) that is attachable to fastener  26 . For example, in the preferred embodiment, where fastener  26  is the hook component of a hook and loop-type connector, acceptor  27  will be the loop component of the connector, and vice versa. As shown in FIG. 4D, wrist support  17  is then placed onto notebook computer  5  so that fastener  26  engages acceptor  27 . Wrist support  17  is thus affixed to the notebook computer (see FIG. 4D for a side view and FIG. 5 for a perspective view). While in this position wrist support  17  can be in a deflated position (FIG. 4D) or an inflated position (FIG. 4E). Wrist pad  17  can be removed from notebook computer  5  by simply prying it from the surface of computer body  10  with sufficient force to disengage fastener  26  from acceptor  27 . Wrist pad  17  can also be connected to computer body  10  by means of a magnetic connector, a mechanical connector, or any other suitable fastening device.  
         [0062]    Also within the invention are gel-filled wrist supports for use with a notebook computer and notebook computers having a gel-filled wrist support integrated with the body of the notebook computer (e.g., in the top panel or in the front panel). These embodiments are similar to the fluid-fillable wrist support shown in the figures and described above except that the fluid is a gel such as a water-based gel, a stable elastomeric block polymer gel, urethane, and any other suitable gel. Examples of suitable elastomeric block polymer gels can be found in U.S. Pat. Nos. 3,676,388, 4,369,284, 5,633,286 and 5,713,544. Examples of polyurethane gels include those in U.S. Pat. Nos. 4,346,205; 4,476,258; 4,722,946; and 4,980,386.  
         [0063]    The overall dimensions of the gel-filled wrist pad can be any suitable for use with a notebook computer, e.g., sized to fit on the top panel of a notebook computer without interfering with the operation of the notebook computer&#39;s other components (e.g., pointing device or keyboard). The thickness (i.e., from the bottom surface to the top surface of the wrist pad) of the wrist pad can be any suitable for comfortable use with a notebook computer, for example, between about 3 and 30 mm (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, and 30 mm). For use with conventional notebook computers, the thickness of the wrist pad, especially in those versions in which the gel is sealed within the wrist pad, is preferably small enough (e.g., between about 0.5 and 10 mm or between 1 and 5 mm) so that once the wrist support(s) is mounted on the top panel of the notebook computer, the computer can be placed in the open and closed configurations without having to remove the wrist support(s).  
         [0064]    For the notebook computers having a wrist support integrated in the top panel of the computer body, referring now to FIG. 6, the top panel can have one or more recessed depressions  42  (e.g., one or two receded portions of computer body  10  that can be circumscribed by a rigid material such as plastic) into which wrist support  17  (e.g., one that takes the form of a bladder  24  filled with gel  40  as shown in FIG. 6 or another wrist support described herein) can be inserted such that the thickness of the wrist support that projects above the top panel is reduced or eliminated. Depressions  42  can be of any size or shape suitable for accepting a wrist support. For example, they can have a depth (the distance from the plane of the top panel to the bottom of the depression) of between about 3 and 30 mm (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, and 30 mm). The other dimensions of the wrist pad should be suitable for being used in a notebook computer without interfering with the operation of other notebook computer components such as the pointing device and the key board. For example, the surface area of the bottom portion of the wrist pad  17  (i.e., the portion of wrist pad  17  in contact with the bottom of the depression  42  as shown in FIG. 6) can be less that about 100 cm 2  (e.g., 30, 40 , 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100 cm 2 ), although it can be larger in some configurations. The surface area of the top portion of wrist pad  17  (that is the portion of wrist pad  17  that would contact the notebook computer user&#39;s wrist or palm) should be large enough to support an average size wrist, e.g., between about 30 and 100 cm 2  (e.g., 40-90 cm 2 , 50-80 cm 2  or 60-70 cm 2 ). The gel-filled wrist support of the invention can additionally feature a cover made of a durable material and/or a means for attaching the wrist pad to the depression (e.g., for versions of the wrist pads that are reversibly detachable from the computer body). Suitable materials for the cover and means for attaching the wrist pad to the depression are described above for other embodiments of the invention.  
         [0065]    From the foregoing, it can be appreciated that the notebook computers and wrist supports of the invention permit the use of a keyboard in a comfortable and ergonomic manner.  
         [0066]    While the above specification contains many specifics, these should not be construed as limitations on the scope of the invention, but rather as examples of preferred embodiments thereof. Many other variations are possible. For example, a notebook computer having an inflatable wrist support integrated into the top panel of the computer body wherein inflation of the wrist support causes it to expand in such a manner as to overlap the front panel of the computer body, is included within the invention. As another example, a notebook computer having a wrist support in communication with a self-contained, pressurized fluid reservoir (e.g., a tank containing pressurized nitrogen gas) such that the fluid reservoir can provide fluid to inflate the wrist support is within the invention. Accordingly, the scope of the invention should be determined not by the embodiments illustrated, but by the appended claims and their legal equivalents.