Abstract:
Docking platforms formed in one of the largest-surface-area surfaces (the back surfaces) of mobile electronic devices ( 1, 32 ). Such a docking platform comprises a docking accessory cavity ( 3, 41, 51, 60 ) having a docking connection system ( 49 ) comprising one or more docking connectors ( 4, 5, 42, 52, 56, 58 ) formed within the cavity, and optionally two or more electrical contacts ( 19 ) within the cavity, the contacts electrically connected to electronics within the electronic device and constructed and arranged to allow electrical connection to detachable docking accessories ( 6, 8, 27, 30, 31, 33, 36, 45, 61 ). The docking connection system is operable to form detachable attachments to multiple independent docking accessories simultaneously. The cavities of the docking platforms are shaped to accommodate a broad range of docking accessories that are specially adapted to sit in a generally flush manner with the back surface of the mobile electronic device while attached to the docking connectors. One type of accessory ( 8, 27, 33 ) forms an assembly with an expandable accordion ( 10 ) attached to the docking platform.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    Embodiments of the present invention relate to docking connectors for mobile electronic devices. In particular, embodiments of the present invention relate to docking connectors disposed on a largest-surface-area surface of the electronic devices. 
         [0003]    2. Discussion of Related Art 
         [0004]    Mobile electronic devices often comprise docking connectors, which enable the mobile electronic devices to temporarily attach to multiple external docking accessories, such as speakers and batteries, generally further enabling power and data transmission between the mobile electronic device and the docking accessories. Docking connectors are generally housed on one of the edges of the mobile electronic device, as opposed to one of the two major faces of a typical mobile electronic device, wherein the front face is generally designated by the location of a screen, should the device house a screen, and the back face is designated as the face opposite the front face. For example, the smartphone shown in  FIG. 1A  (Prior Art) has two major faces and four relatively narrow edges, with a docking connector housed on the bottom edge. A shortfall of housing a docking connector on the edge of a mobile electronic device is that when the device is attached to docking accessories, the resultant system is generally inconvenient for transport. If the docking accessories attach by a flexible cable to the docking connector as shown in  FIG. 1A , the resultant system comprises two or more independently moving bodies, connected by the flexible cable, and is thus inconvenient for transport. If the docking accessories attach in a rigid fashion to the docking connector, the resultant system generally increases the effective magnitude of at least one of the dimensions of the mobile electronic device to a degree that renders the resultant system inconvenient for transport. This is due to the fact that the edges of mobile electronic devices generally have a relatively small surface area compared to the front and back faces of the devices; thus, to accommodate the volume of a docking accessory that is rigidly attached to such an edge, the resultant system generally extends significantly in directions away from the docking connector edge. See for example  FIG. 1B  (Prior Art). 
         [0005]    To address the preceding docking-system transport problem, some docking accessories, such as certain supplemental batteries, are manufactured as parts of mobile electronic device cases. The resultant “docking cases” attach to mobile electronic devices, both at their docking connectors (as standard docking accessories attach) and around their various edges (as standard mobile electronic device cases attach), to enable the docking accessories to be transported securely against the back faces of the mobile electronic devices. See for example  FIG. 1C  (Prior Art). In a similar vein, some docking accessories are manufactured as parts of docking “sleeves” (or “jackets”), which attach to compatible mobile electronic devices at their side edges and at their docking connectors (some docking sleeves are themselves operable to form detachable attachments to independent docking accessories). See for example  FIG. 1D  (Prior Art). Docking cases and sleeves enable the majority of the volume of docking accessories to be distributed in a generally even manner across the relatively large back faces of mobile electronic devices, with the aim of minimizing effective increases in magnitude to any single dimension of the mobile electronic device and thus enabling the resultant systems to be transported in a convenient fashion. While going some way to mitigate the increase in effective size of mobile electronic devices to which docking cases and sleeves are attached, the main shortfall with this method for addressing the docking-system transport problem is that docking cases and sleeves nevertheless increase the effective size of the corresponding mobile electronic device, both in the dimension perpendicular to the back face of the mobile electronic device and in the dimension perpendicular to the face of the edge that houses the docking connector. 
         [0006]    A second method for addressing the docking-system transport problem is to (i) recess a portion of a selected edge of a mobile electronic device to form a rectangular cavity that is open both at the selected edge and at the backside of the mobile electronic device; (ii) form a docking connector on the recessed edge; and (iii) form rails (or tracks) on the two cavity edges perpendicular to the recessed edge. See for example  FIG. 1E  (Prior Art). The rails serve to guide docking accessories as they are inserted into the rectangular cavity through the opening on the selected edge and to help fix the positions of the docking accessories when they are in their docked states. The rectangular cavity enables docking accessories to attach to the mobile electronic device without increasing its effective carrying size. For certain designs, the formation of the cavity may lead to an increase in the initial carrying size of the mobile device by taking up space that could otherwise be used for internal components of the device; still, the cavity enables docking accessories to attach to the device without further increasing its effective carrying size and without altering its overall contour. This method thus avoids the main shortfall with the preceding method. Nevertheless, it has several shortfalls of its own. First, it does not allow multiple docking accessories to attach simultaneously and independently to the mobile electronic device. Some docking accessories, such as supplemental camera lenses and flashes, stereo speakers, and electrophysiology sensors, naturally work together in pairs, so there is a need for a method that enables multiple docking accessories to attach simultaneously to the mobile electronic device. Furthermore, different circumstances might call for one and the same accessory to be paired with different partner accessories. For instance, a daytime circumstance might call for a supplemental camera lens accessory to be combined with a supplemental battery accessory, whereas a nighttime circumstance might call for the same camera lens to be combined instead with a supplemental flash accessory. So there is a need for a method that enables multiple docking accessories to attach both simultaneously and independently to the mobile electronic device. A second shortfall with this method is that its rail system requires the corresponding accessory cavity to be open at one edge of the mobile device. This is disadvantageous, as edge openings reduce available space for mobile-device features that are ideally located on an edge of the device (for instance, volume buttons, power buttons, built-in speakers, and built-in sensors) and, if the selected edge is tapered, as is common to create the perception that the device is only as thick as its outermost edges, the tapered boundary of the corresponding accessory cavity places adverse constraints on the design of compatible docking accessories. A third shortfall with this method is that, by fixing the positions of the outer edges of attached accessories through its rail system, it presents design obstacles for a broad range of accessories whose functionality improves with the ability to temporarily expand away from, and rotate at various angles to, the backsides of the mobile electronic devices to which they are attached (for instance, speakers, electrophysiology sensors, massage paddles, hand-pump chargers, and ultrasound transducers). A fourth shortfall with this method is that accessories whose attachment does not increase the effective carrying size of the mobile device must have a certain rectangular shape and size to mate with the rail system (and those accessories that protrude beyond the boundaries of the rectangular cavity must have a base of a certain rectangular shape and size to mate with the rail system). Different docking accessories have different ideal shapes and sizes, however. For instance, whereas certain camera lenses, speakers, and electrophysiology sensors might ideally be circular and relatively small, certain game controllers, external keyboards, and solar panels might ideally be elongated and relatively large. Ideally, a solution to the docking-system transport problem should enable a range of shapes and sizes of accessories to attach to the mobile electronic device without increasing its effective carrying size. What is needed is a docking platform that is housed on the back face of a mobile electronic device to enable multiple docking accessories of various shapes and sizes to simultaneously and independently attach to the mobile electronic device with the optional freedom to temporarily expand away from, and rotate at various angles to, the back face of the mobile device, and with at most a nominal increase to the effective magnitude of any one dimension of the mobile device. Furthermore, the docking platform should not require openings on the edges of the mobile device. 
       SUMMARY OF THE INVENTION 
       [0007]    One or more embodiments of the present invention are directed to mobile electronic devices having docking connectors. A device according to the present invention includes a docking platform formed at one of the largest-surface-area surfaces of the device, generally the back face of the device. The docking platform comprises a docking connection system, the connection system comprising one or more docking connectors generally disposed in a recessed docking accessory cavity that enables docking accessories to be attached to the docking connectors without significantly increasing the effective carrying size of the mobile electronic device. The connection system is constructed to enable the docking accessory cavity to be open only at the selected surface. The accessory cavity is generally shaped and configured to accommodate a broad range of docking accessories that might be specially adapted to sit in a generally flush manner with the outermost surface of the back face of the mobile device while attached to the docking connectors. The connection system is operable to form a detachable attachment to multiple independent docking accessories simultaneously. The connection system may be further operable to form a detachable attachment to an accessory without fixing the outer edges of the accessory. The range of docking accessories that might be accommodated by the docking platforms includes, for example, batteries, solar panels, game controls, LED lights, hand-crank chargers, weather sensors, camera flashes, camera lenses, electrophysiology sensors, memory cards, keyboards, massage paddles, glucose monitors, body fat monitors, breathalyzers, ultrasound transducers, and pulse oximeters. 
         [0008]    In one embodiment, the docking platform is integrally formed with the rest of the body of the mobile electronic device. The platform comprises an accessory cavity that has a generally oval shape, this cavity further comprising two circular cavities, one constituting each end of the oval cavity, with a depressed region between the two cavities constituting the middle part of the oval cavity. Each of the two circular cavities has an annular docking connector disposed at its center. Each docking connector comprises (i) an annular female snap-fit feature, for attaching docking accessories securely to the docking platform; (ii) 30 electrical contacts disposed evenly around the inner edge of the female snap-fit feature, for transmission of power and data to and from docking accessories; and (iii) a male index key, to ensure that the electrical contacts on a docked accessory mate with the appropriate contacts on the docking connectors. The electrical contacts are formed of gold-plated nickel-plated copper, with copper pads, and the remainder of the platform is formed of the same hard material as the rest of the body of the mobile electronic device. 
         [0009]    Other embodiments include variations in (i) shape of platform; (ii) size of platform; (iii) number of docking accessory cavities; (iv) shape of docking accessory cavities; (v) size of docking accessory cavities; (vi) number of docking connectors; (vii) shape of docking connectors; (viii) size of docking connectors; (ix) mode of attachment of docking connectors to docking accessories; (x) configuration of electrical contacts; (xi) number of electrical contacts (including zero); (xii) mode of attachment of platform to the body of the mobile electronic device; and (xiii) materials of the platform and its components. 
         [0010]    A docking platform according to the present invention is formed in a selected one of two largest-surface-area surfaces of a mobile electronic device and comprises a recess formed within the selected surface, the recess forming a docking accessory cavity, the accessory cavity optionally forming a further recess, a docking connection system formed within the docking accessory cavity, the docking connection system comprising one or more docking connectors, the docking connection system operable to form a detachable attachment to at least two independent docking accessories simultaneously, the docking connection system constructed to enable the docking accessory cavity to be open only at the selected surface. 
         [0011]    The docking connection system might be operable to form a detachable attachment to a docking accessory without fixing the positions of the outer edges of the accessory. 
         [0012]    The docking platform might comprise two (or more) electrical contacts within the docking accessory cavity, the contacts electrically connected to electronics within the electronic device and constructed and arranged to allow electrical connection to the docking accessory when the docking accessory is attached to the docking connector. 
         [0013]    The docking platform might enable power and data transmission between the mobile electronic device and the docking accessories by electrical connection to the docking accessories, or the mobile electronic device might enable at least one of power or data to be transmitted between the mobile device and the accessories through wireless technology. 
         [0014]    The docking connection system might form a detachable mechanical bond with docking accessories, or a detachable magnetic bond. 
         [0015]    The docking connection system might comprise a single docking connector operable to form a detachable attachment to two or more independent docking accessories simultaneously (for instance, the docking connection system might comprise a single magnetic element operable to form a detachable magnetic attachment to two or more independent docking accessories simultaneously), or it might comprise more than one docking connector jointly operable to form a detachable attachment to two or more independent docking accessories simultaneously. 
         [0016]    The docking connector might be generally circular. 
         [0017]    The docking accessory cavity might be elongated. 
         [0018]    The selected surface in which the docking platform is formed might be substantially flush with an outwardly facing surface of the docking accessory when the docking accessory is attached to the docking connection system. 
         [0019]    A docking system according to the present invention comprises a docking platform formed in a selected one of two largest-surface-area surfaces of a mobile electronic device (comprising a recessed docking accessory cavity formed within the selected surface, a docking connection system formed within the docking accessory cavity, the docking connection system operable to form a detachable attachment to at least two independent docking accessories simultaneously, the docking connection system constructed to enable the docking accessory cavity to be open only at the selected surface, and optionally two (or more) electrical contacts within the docking accessory cavity, the contacts electrically connected to electronics within the electronic device), and a docking accessory constructed and arranged to form a detachable attachment to the docking connection system, the docking accessory further constructed to allow at least one of either data or power transmission between the mobile electronic device and the docking accessory. 
         [0020]    The docking connection system might be further operable to form an attachment with a docking accessory without fixing the positions of the outer edges of the attached accessory. 
         [0021]    The docking accessory might be further constructed and arranged to allow electrical connection to the electrical contacts of the docking connection system when the docking accessory is attached to the docking connection system. 
         [0022]    The docking system might further comprise an accordion capable of extending outward from the selected surface and retracting back toward the selected surface, the accordion distal end attached to the docking accessory body. A flexible circuit (such as a flat flex circuit or a flexible cable) might be formed within the accordion to enable electrical connection between the docking accessory body and the mobile electronic device. 
         [0023]    The docking accessory might comprise a battery, solar panel, game control, LED light, hand-crank charger, weather sensor, camera flash, camera lens, electrophysiology sensor, memory card, keyboard, massage paddle, glucose monitor, body fat monitor, breathalyzer, ultrasound transducer, or pulse oximeter, among other docking accessories. 
         [0024]    A docking accessory system for a mobile electronic device according to the present invention comprises a docking accessory body, an accordion constructed to attach to a selected one of two largest-surface-area surfaces of the mobile electronic device and capable of extending outward from the selected surface and retracting back toward the selected surface, the accordion distal end attached to the docking accessory body, and the docking accessory comprising electronics enabling transmission of at least one of data or power between the accessory and the mobile electronic device. 
         [0025]    The docking accessory system might further comprise a flexible circuit formed within the accordion and configured to electrically connect to the docking accessory body and the mobile electronic device. 
         [0026]    The method of allowing attachment of a docking accessory to a mobile electronic device according to the present invention comprises the steps of: 
         [0000]    (a) forming a recessed docking accessory cavity within a selected one of two largest-surface-area surfaces of the mobile electronic device; and
 
(b) forming a docking connection system within the docking accessory cavity, the connection system constructed and arranged to form a detachable attachment a docking accessory, to enable the docking accessory cavity to be open only at the selected surface, and to enable attached docking accessories to temporarily extend away from, and articulate at various angles to, the selected surface of the mobile electronic device.
 
         [0027]    Those skilled in the art will appreciate that configurations similar to embodiments shown and described herein may be used. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0028]      FIG. 1  (Prior Art) comprises  FIG. 1A , showing a cell phone device with a typical end connector and a cable-connected accessory,  FIG. 1B , showing a device with an end connector and a rigid partial-case accessory,  FIG. 1C , showing a device with an end connector and a rigid full-case accessory,  FIG. 1D , showing a device and a docking sleeve, the device and sleeve specially adapted to mate with each other, and  FIG. 1E , showing a device and a rectangular dummy accessory, the device and dummy accessory specially adapted to enable the dummy accessory to attach to rails on the inner edges of the rectangular cavity on the backside of the device without increasing the effective carrying size of the device. 
           [0029]      FIG. 2  comprises  FIGS. 2A ,  2 B, and  2 C.  FIG. 2A  is an isometric back view of a mobile electronic device with a docking platform according to at least one embodiment of the one or more present inventions. 
           [0030]      FIG. 2B  is a back view of the mobile electronic device with a docking platform of  FIG. 2A , with a detailed view of one of the docking connectors. 
           [0031]      FIG. 2C  is side cutaway view of the mobile electronic device with a docking platform of  FIG. 2A . 
           [0032]      FIG. 3  comprises  FIGS. 3A and 3B .  FIG. 3A  is an isometric view of a mobile electronic device with a docking platform according to an embodiment wherein the electrical contacts of the docking connectors are disposed in sockets at the base of the docking connectors. This is an alternative to the embodiment of  FIG. 2A , wherein the electrical contacts of the docking connectors are disposed evenly around the inner edge of the female snap-fit feature of the docking connectors. 
           [0033]      FIG. 3B  is a detailed view of one of the docking connectors of  FIG. 3A . 
           [0034]      FIG. 4  comprises  FIGS. 4A ,  4 B, and  4 C.  FIG. 4A  is an isometric view of the mobile electronic device with docking platform of  FIG. 2  and two unattached basic generic docking accessories. 
           [0035]      FIG. 4B  is a side view of the mobile electronic device with docking platform of  FIG. 2A  and two unattached basic generic docking accessories. 
           [0036]      FIG. 4C  is an isometric view of the mobile electronic device with docking platform of  FIG. 2A  with two basic generic docking accessories attached to the docking connectors of the docking platform. 
           [0037]      FIG. 5  is a detailed isometric bottom view of a basic generic docking accessory. 
           [0038]      FIG. 6  comprises  FIGS. 6A ,  6 B,  6 C,  6 D,  6 E, and  6 F.  FIG. 6A  is an isometric view of the mobile electronic device with docking platform of  FIG. 2A  and two unattached expandable generic docking accessories in their expanded states. 
           [0039]      FIG. 6B  is an exploded isometric view of the mobile electronic device with docking platform of  FIG. 2A  and two unattached expandable generic docking accessories in their expanded states. 
           [0040]      FIG. 6C  is an exploded side view of the mobile electronic device with docking platform of  FIG. 2A  and two unattached expandable generic docking accessories in their expanded states. 
           [0041]      FIG. 6D  is an isometric view of the mobile electronic device with docking platform of  FIG. 2  and two attached expandable generic docking accessories in their expanded states. 
           [0042]      FIG. 6E  is an exploded side cutaway view of the mobile electronic device with a docking platform of  FIG. 2A  with unattached expandable generic docking accessories in their expanded states. 
           [0043]      FIG. 6F  is a side cutaway view of the mobile electronic device with a docking platform of  FIG. 2A  with attached expandable generic docking accessories in their expanded states. 
           [0044]      FIG. 7  is an isometric view of the mobile electronic device with a docking platform of  FIG. 2A  with attached generic docking accessories that are either basic accessories or expandable accessories in their collapsed states. 
           [0045]      FIG. 8  is a side view of the mobile electronic device with a docking platform of  FIG. 2A  with attached expandable generic docking accessories in one of their partially collapsed states, wherein the bodies of the docking accessories are rotated at oblique angles to the back surface of the mobile device. 
           [0046]      FIG. 9  comprises  FIGS. 9A ,  9 B,  9 C,  9 D, and  9 E.  FIG. 9A  is an isometric bottom view of an expandable generic docking accessory in its fully expanded state. 
           [0047]      FIG. 9B  is an isometric top view of an expandable generic docking accessory accordion of  FIG. 9A  in its fully expanded state. 
           [0048]      FIG. 9C  is an exploded, isometric, bottom view of the expandable generic docking accessory of  FIG. 9A  in its fully expanded state, with a detailed view of the expandable generic docking accessory body female flex-circuit connector. 
           [0049]      FIG. 9D  is an exploded, isometric, top view of the expandable generic docking accessory of  FIG. 9A  in its fully expanded state, with a detailed view of the expandable generic docking accessory accordion flex circuit. 
           [0050]      FIG. 9E  is an isometric view of the expandable generic docking accessory body female connector of  FIG. 9C . 
           [0051]      FIG. 10  comprises  FIGS. 10A ,  10 B,  10 C, and  10 D.  FIG. 10A  is an isometric view of the mobile electronic device with two docked speaker accessories, according to one embodiment of the invention, in partially expanded modes. 
           [0052]      FIG. 10B  is an isometric top view of the speaker accessory of  FIG. 10A . 
           [0053]      FIG. 10C  is an exploded, isometric, top view of the speaker accessory of  FIG. 10A . 
           [0054]      FIG. 10D  is an exploded, isometric, bottom view of the speaker accessory of  FIG. 10A . 
           [0055]      FIG. 11  comprises  FIGS. 11A ,  11 B, and  11 C.  FIG. 11A  is an isometric view of the mobile electronic device with a docked solar charging accessory, according to one embodiment of the invention. 
           [0056]      FIG. 11B  is an isometric top view of the solar charging accessory of  FIG. 11A . 
           [0057]      FIG. 11C  is an isometric bottom view of the solar charging accessory of  FIG. 11A . 
           [0058]      FIG. 12  comprises  FIGS. 12A ,  12 B, and  12 C.  FIG. 12A  is an isometric back view of the mobile electronic device with a docked supplemental battery accessory, according to one embodiment of the invention. 
           [0059]      FIG. 12B  is a top view of the supplemental battery accessory of  FIG. 12A . 
           [0060]      FIG. 12C  is a bottom view of the supplemental battery accessory of  FIG. 12A . 
           [0061]      FIG. 13  comprises  FIGS. 13A ,  13 B, and  13 C.  FIG. 13A  is an isometric back view of the mobile electronic device with two docked electrophysiology accessories in one of their partially collapsed states, according to one embodiment of the invention. 
           [0062]      FIG. 13B  is an isometric top view of the electrophysiology sensor accessory of  FIG. 13A . 
           [0063]      FIG. 13C  is an isometric exploded side view of the electrophysiology sensor accessory of  FIG. 13A . 
           [0064]      FIG. 14  comprises  FIGS. 14A ,  14 B,  14 C and  14 D.  FIG. 14A  is an isometric top view of a game controller accessory in its closed state, according to one embodiment of the invention. 
           [0065]      FIG. 14B  is a bottom view of the game controller accessory of  FIG. 14A . 
           [0066]      FIG. 14C  is a back view of the mobile electronic device with the game controller accessory of  FIG. 14A  docked in a partially open state. 
           [0067]      FIG. 14D  is a front view of the mobile electronic device with the game controller accessory of  FIG. 14A  docked in its open state. 
           [0068]      FIG. 15  comprises  FIGS. 15A and 15B .  FIG. 15A  is an isometric back view of a docking system comprising a generic docking accessory and a mobile electronic device with a generic docking platform formed on its back face. 
           [0069]      FIG. 15B  is an isometric back view of the mobile electronic device of  FIG. 15A  with isometric back views of at least six embodiments of docking platform  2  radiating outward from the mobile electronic device of  FIG. 15A . Moving clockwise from upper left, the first docking platform is the docking platform of  FIG. 2 ; the second platform is the platform of  FIG. 3 ; the third platform comprises an oval docking accessory cavity with two docking connectors, each comprising an annular magnetic element, for bonding with docking accessories, and ten electrical contacts embedded in an annular connector cavity; the fourth platform comprises an oval accessory cavity with a single magnetic element that is operable to bond simultaneously with multiple independent docking accessories that are operable to wirelessly transfer at least one of power or data between the accessories and the mobile electronic device; the fifth platform comprises an hourglass docking accessory cavity with two docking connectors, each comprising a fixed tab and a spring tab for forming detachable attachments with docking accessories, each connector further comprising five electrical contacts on an outer edge of the accessory cavity; the sixth platform comprises an oval docking accessory cavity with two docking connectors, each comprising nine electrical contacts formed inside eight connector cavities. 
           [0070]      FIG. 16  is an isometric drawing showing an embodiment of the present invention implemented with a tablet device. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0071]    The following table lists elements of the illustrated embodiments of the invention and their associated reference numbers for convenience. 
         [0000]    
       
         
               
               
             
               
               
             
           
               
                   
               
               
                 Ref. No. 
                 Element 
               
               
                   
               
             
             
               
                   
               
             
          
           
               
                 1. 
                 Mobile electronic device 
               
               
                 2. 
                 Docking platform 
               
               
                 3. 
                 Docking accessory cavity first embodiment 
               
               
                 4. 
                 Docking connector first embodiment 
               
               
                 5. 
                 Docking connector second embodiment 
               
               
                 6. 
                 Basic generic docking accessory first embodiment 
               
               
                 7. 
                 Basic generic docking accessory first embodiment male snap-fit connector 
               
               
                 8. 
                 Expandable generic docking accessory 
               
               
                 9. 
                 Expandable generic docking accessory body 
               
               
                 10. 
                 Expandable generic docking accessory accordion 
               
               
                 11. 
                 Expandable generic docking accessory accordion vent 
               
               
                 12. 
                 Expandable generic docking accessory accordion vertical wall 
               
               
                 13. 
                 Expandable generic docking accessory accordion flexural hinge 
               
               
                 14. 
                 Expandable generic docking accessory accordion flipper wall 
               
               
                 15. 
                 Accordion male snap-fit connector 
               
               
                 16. 
                 Expandable generic docking accessory accordion flex circuit 
               
               
                 17. 
                 Expandable generic docking accessory accordion connector female index key 
               
               
                 18. 
                 Expandable generic docking accessory accordion male connector electrical contacts 
               
               
                 19. 
                 Docking connector electrical contacts 
               
               
                 20. 
                 Expandable generic docking accessory accordion flex circuit male connector 
               
               
                   
                 electrical contacts 
               
               
                 21. 
                 Expandable generic docking accessory body female connector 
               
               
                 22. 
                 Basic generic accessory first embodiment connector female index key 
               
               
                 23. 
                 Basic generic accessory first embodiment connector electrical contacts 
               
               
                 24. 
                 Docking connector first embodiment female snap-fit 
               
               
                 25. 
                 Expandable accessory body female connector port 
               
               
                 26. 
                 Docking connector first and second embodiment male index key 
               
               
                 27. 
                 Speaker accessory 
               
               
                 28. 
                 Speaker accessory body 
               
               
                 29. 
                 Speaker accessory piezoelectric speaker 
               
               
                 30. 
                 Solar charger accessory 
               
               
                 31. 
                 Supplemental battery accessory 
               
               
                 32. 
                 Tablet device 
               
               
                 33. 
                 Electrophysiology sensor accessory 
               
               
                 34. 
                 Electrophysiology sensor accessory body 
               
               
                 35. 
                 Electrophysiology sensor accessory electrode 
               
               
                 36. 
                 Game controller accessory 
               
               
                 37. 
                 Game controller accessory sliding control panel 
               
               
                 38. 
                 Game controller accessory base 
               
               
                 39. 
                 Game controller accessory buttons 
               
               
                 40. 
                 Game controller accessory base tracks 
               
               
                 41. 
                 Generic docking accessory cavity 
               
               
                 42. 
                 Docking connector third embodiment 
               
               
                 43. 
                 Docking connector third embodiment connector cavities 
               
               
                 44. 
                 Docking connector third embodiment female aligning element 
               
               
                 45. 
                 Basic generic docking accessory second embodiment 
               
               
                 46. 
                 Basic generic docking accessory second embodiment male aligning element 
               
               
                 47. 
                 Basic generic docking accessory second embodiment electrical contact 
               
               
                 48. 
                 Basic generic docking accessory second embodiment contact insulator 
               
               
                 49. 
                 Docking connection system 
               
               
                 50. 
                 Docking connector third embodiment magnetic attachment system 
               
               
                 51. 
                 Docking accessory cavity second embodiment 
               
               
                 52. 
                 Docking connector fourth embodiment 
               
               
                 53. 
                 Docking connector fourth embodiment connector cavity 
               
               
                 54. 
                 Docking connector fourth embodiment female aligning element 
               
               
                 55. 
                 Docking connector fourth embodiment magnetic attachment system 
               
               
                 56. 
                 Docking connector fifth embodiment 
               
               
                 57. 
                 Docking connector fifth embodiment spring tab 
               
               
                 58. 
                 Docking connector sixth embodiment 
               
               
                 59. 
                 Docking connector sixth embodiment magnetic attachment system 
               
               
                 60. 
                 Docking accessory cavity third embodiment 
               
               
                 61. 
                 Generic docking accessory 
               
               
                 62. 
                 Docking connector fifth embodiment fixed tab 
               
               
                   
               
             
          
         
       
     
         [0072]      FIGS. 2A-C  illustrate a first embodiment of docking connectors  4  according to the present invention.  FIGS. 3A and 3B  illustrate a second embodiment of docking connectors  5 . In both of these cases two (or more) electrical contacts are arranged in a circular pattern, although other patterns and shapes of connectors are possible. Contacts  19  might be organized in any convenient pattern. As an example, a pin docking connector is arranged as shown in Table 1. The same contacts could be arranged in various circular patterns to form, for example, the connectors in  FIG. 2  or  FIG. 3  if desired. Depending on the specific docking connector configuration of the mobile electronic device and what accessory is to be used, various pins are connected and active. 
         [0000]    
       
         
               
               
               
             
           
               
                 TABLE 1 
               
               
                   
               
               
                 Pin 
                 Name 
                 Description 
               
               
                   
               
             
             
               
                 1 
                 GND 
                 Ground 
               
               
                 2 
                 V+ Out 
                 Power Out (to docking accessory) 
               
               
                 3 
                 V+ In 
                 Power In (from docking accessory) 
               
               
                 4 
                 D+ 
                 Data Positive 
               
               
                 5 
                 D− 
                 Data Negative 
               
               
                 6 
                 Detection/Identification/ 
                 (optional) 
               
               
                   
                 Configuration 
               
               
                 7 
                 Clock 
                 (optional) 
               
               
                 8 and 
                 Expansion 
                 (optional) 
               
               
                 greater 
               
               
                   
               
             
          
         
       
     
         [0073]      FIG. 2  comprises  FIGS. 2A ,  2 B, and  2 C.  FIG. 2A  is an isometric back view of a mobile electronic device  1  with a first embodiment of a docking platform  2  comprising a docking connection system  49 , the connection system comprising two docking connectors  4  situated in accessory cavity  3 .  FIG. 2B  is a back view of mobile electronic device  1  with a docking platform of  FIG. 2A  and a detailed view of one of the docking connectors  4  comprising female snap-fit  24 , male index key  26 , and docking connector electrical contacts  19 .  FIG. 2C  is side cutaway view of device  1  with a docking platform  2  of  FIG. 2A . In this embodiment, circular arrays of docking connector electrical contacts  19  are disposed evenly around the inner edge of female snap-fits  24  of docking connectors  4 . 
         [0074]      FIG. 3  comprises  FIGS. 3A and 3B .  FIG. 3A  is an isometric view of a mobile electronic device  1  with a docking platform  2  according to a second embodiment of the present invention, wherein the electrical contacts  19  of the docking connectors  5  of the docking connection system  49  are disposed in concentric circles and form sockets at the base of the docking connectors.  FIG. 3B  is a detailed view of one of the docking connectors  5  of  FIG. 3A . This is an alternative to the embodiment of  FIG. 2A , wherein the electrical contacts  19  of docking connectors  4  are disposed evenly around the inner edge of female snap-fit feature  24  of the docking connectors. These connectors  5  also include male index keys  26 . 
         [0075]      FIG. 4  comprises  FIGS. 4A ,  4 B, and  4 C.  FIG. 4A  is an isometric view of mobile electronic device  1  with docking platform  2  of  FIG. 2  and two unattached basic generic docking accessories  6 .  FIG. 4B  is a side view of the arrangement of  FIG. 4A , showing basic generic docking accessories  6  each with a docking accessory male snap-fit  7 .  FIG. 4C  is an isometric view of the arrangement of  FIG. 4A , but with docking accessories  6  attached to docking connectors  4  of docking platform  2 . Note that docking accessory cavity  3  in this embodiment allows the back surface of device  1  to be substantially flat even when accessories  6  are snapped into place. This is a convenient arrangement since accessories  6  do not increase the thickness of device  1  or catch on clothing or the like. Even when accessories  6  are too thick to sit flush with the back surface of device  1 , cavity  3  minimizes the interference caused by accessories  6 . 
         [0076]      FIG. 5  is a detailed isometric bottom view of basic generic docking accessory  6 . Docking accessory  6  of  FIG. 5  is configured for docking connector  4  as shown in  FIG. 2 . Female index key  22  helps align accessory  6  properly with connector  4  as male snap-fit connector  7  mates with female snap-fit  24  and accessory connector electrical contacts  23  make contact with docking connector electrical contacts  19 . 
         [0077]      FIG. 6  comprises  FIGS. 6A ,  6 B,  6 C,  6 D,  6 E, and  6 F.  FIG. 6  illustrates one very useful type of extendable docking accessory assembly  8  formed of docking accessory body  9  attached to docking accessory accordion  10 . Expandable docking accessory assembly  8  can temporarily extend outward from the back of device  1  by expanding accessory accordion  10 . Accessory assembly  8  is very similar to the sockets (comprising in general an accordion and an end cap) as taught in U.S. patent application Ser. No. 13/403,729 to the present inventor. 
         [0078]      FIG. 6A  is an isometric view of mobile electronic device  1  with docking platform  2  of  FIG. 2A  and two unattached docking accessory assemblies  8  in their expanded states.  FIG. 6B  is an exploded isometric view of the arrangement of  FIG. 6A , showing docking accessory bodies  9  separated from accordions  10 . Flex circuits  16  are disposed within accordions  10 . 
         [0079]      FIG. 6C  is an exploded side view the arrangement of  FIG. 6B .  FIG. 6D  is an isometric view of the arrangement of  FIG. 6A , where accessory assemblies  8  are attached to docking connectors  4 . 
         [0080]      FIG. 6E  is an exploded side cutaway view of the arrangement of  FIGS. 6B and 6C . Female connector  21  can be seen within accessory  9 . Accordion  10  comprises accordion flex circuit  16  which allow accordions  10  to collapse flat against the back surface of device  1 , within cavity  3 . Female index key  17  aligns with male index key  26  to ensure proper connection.  FIG. 6F  is a side cutaway view of the arrangement of  FIG. 6E , assembled. Male snap-fit connector  15  attaches to docking connector  4  female snap-fit  24 . Bi-stable accordion flipper walls  14  are in their upward states. 
         [0081]      FIG. 7  is an isometric view of mobile electronic device  1  with a docking platform of  FIG. 2  or  FIG. 3 , with attached generic docking accessories that are either basic accessories  6  or expandable docking accessory assemblies  8  in their collapsed states. 
         [0082]      FIG. 8  is a side view of mobile electronic device  1  with expandable docking accessory assemblies  8  in one of their partially collapsed states. This configuration is useful for orienting the faces of certain docking accessories, fore example electrophysiology devices such as ECG accessories, for optimal functioning. 
         [0083]      FIG. 9  comprises  FIGS. 9A ,  9 B,  9 C,  9 D, and  9 E.  FIG. 9A  is an isometric bottom view of an extendable docking accessory assembly  8  in its fully expanded state. Male electrical contacts  18  are configured to engage female electrical contacts  19  of docking connector  4  as shown in  FIG. 2 . Female index key  17  aligns with male index key  26  to ensure proper connection. During the collapse of accessory assembly  8 , flexural hinges  13  flex to allow vertical walls  12  to move into a stable concentric configuration as flipper walls  14  of accordion  10  move from their current stable upward state, with their outer edges above their inner edges, to a stable downward state, whereby their outer edges are below their inner edges. 
         [0084]      FIG. 9B  is an isometric top view of accordion  10  of  FIG. 9A .  FIG. 9C  is an exploded, isometric, bottom view of accessory  8  and accordion  10 , and  FIG. 9D  is a top view of the same arrangement. An accordion flex circuit  16  is disposed within accordion  10 , and provides electrical connection between device  1  (via contacts  19 , shown in  FIG. 2B , and  18 , shown in  FIG. 9A , as described above) and accessory body  9 , via connector  21 .  FIG. 9E  is an isometric view of accessory connector  21 . Contacts  20  are inserted into port  25  to connect accessory body  9 . As an option, accessory body  9  might be detachable from accordion  10 . 
         [0085]      FIG. 10  comprises  FIGS. 10A ,  10 B,  10 C, and  10 D and shows one example of a set of speaker accessories  27  used in conjunction with accordions  10 .  FIG. 10A  is an isometric view of mobile electronic device  1  with two docked speaker accessories  27 , in partially expanded modes, resting on one edge of device  1  and one edge each of speaker accessory bodies  28 . This extension configuration is useful for holding the device in a near-vertical position without blocking speaker accessories  27 . 
         [0086]      FIG. 10B  is an isometric top view of speaker accessory  27 , comprising speaker accessory body  28  and accordion  10 .  FIG. 10C  shows an isometric side exploded view of the speaker accessory  27  of  FIG. 10B . Accordion flex circuit  16  can be seen within accordion  10 , detached from speaker accessory body  28 .  FIG. 10D  is an exploded, isometric, bottom view of speaker accessory  27 . Piezoelectric speaker  29  connects to accessory connector  21 , which will connect to flex circuit  16  via port  25  as shown in  FIG. 9 . As an example, given the device pin-out shown in Table 1, speaker  29  might use pins 1, 2, 4, and 5, comprising Ground, Power Out, Data Positive, and Data Negative. Under this pin-out arrangement, encoded data may be used for accessory detection. As another example, speaker  29  might use pins 1, 2, 6, 8, and 9, comprising Ground, Power Out, Detection, left channel analog audio, and right channel analog audio. Those skilled in the art will appreciate that many other pin-out arrangements are possible, including arrangements for a self-powered speaker accessory. 
         [0087]    As an example, speaker accessory piezoelectric speaker  29  is a Murata VSLBF series; size 0.5 mm thick, 13 mm wide, 19 mm long; frequency range 200 Hz to 20 kHz; sound pressure level 93.5 dB+/−3.0 dB; resonant frequency 1150 Hz+/−20%; capacitance 1.5 μF+/−30%; maximal sinusoidal voltage 5.0 Vrms; operating temperature range −20 to 70° C. 
         [0088]      FIG. 11  comprises  FIGS. 11A ,  11 B, and  11 C and shows one example of a solar charging accessory  30 .  FIG. 11A  is an isometric view of mobile electronic device  1  with docked solar charging accessory  30 .  FIG. 11B  is an isometric top view of solar charging accessory  30 .  FIG. 11C  is a bottom view of solar charging accessory  30 . In this embodiment, docking connectors  4  as shown in  FIG. 2  are used. As an alternative, docking connectors  5  as shown in  FIG. 3  could be used. Again taking the pin-out arrangement of Table 1 as an example, charging accessory  30  might connect to pins 1, 3, and 6, comprising Ground, Power In, and Detection/Configuration, respectively. 
         [0089]    As an example, solar charger accessory  30  is a custom monocrystalline silicon solar cell encapsulated in epoxy resin; 5.5V; 60 mA; maximum power (Pm) 0.33 W. 
         [0090]      FIG. 12  comprises  FIGS. 12A ,  12 B, and  12 C and shows one example of a supplemental battery accessory  31 .  FIG. 12A  is an isometric view of mobile electronic device  1  with docked supplemental battery accessory  31 .  FIG. 12B  is a top view of supplemental battery accessory  31 .  FIG. 12C  is a bottom view of supplemental battery accessory  31 . As in the case of solar charging accessory  30 , docking connectors  4  as shown in  FIG. 2  are used, but docking connectors  5  as shown in  FIG. 3  could also be used. Again taking the pin-out arrangement of Table 1 as an example, supplemental battery accessory  31  might connect to pins 1, 3, and 6, comprising Ground, Power In, and Detection/Configuration, respectively. 
         [0091]    As an example, supplemental battery accessory  31  is a custom polymer Li-Ion, 3.7V, 800 mAh, 2.96 wh, UN approved. 
         [0092]      FIG. 13  comprises  FIGS. 13A ,  13 B, and  13 C and shows one example of a set of electrophysiology sensor accessories used in conjunction with accordions  10 .  FIG. 13A  is an isometric view of mobile electronic device  1  with two docked electrophysiology sensor accessories  33 , in partially expanded modes. This extension configuration is useful for holding the pair of sensors against a person&#39;s chest for gathering electrophysiological data. 
         [0093]      FIG. 13B  is an isometric top view of electrophysiology sensor accessory  33  with fully expanded accordion  10 . 
         [0094]      FIG. 13C  is an exploded, isometric, side view of electrophysiology sensor accessory  33  with fully expanded accordion  10 . Accordion flex circuit  16  can be seen within accordion  10 , detached from electrophysiology sensor accessory body  34 . Electrophysiology sensor electrode  35  connects to accessory connector  21  (shown in  FIG. 9C ), which will connect to flex circuit  16  via port  25  as shown in  FIG. 9 . As an example, given the device pin-out shown in Table 1, electrophysiology sensor  33  might use pins 1, 2, 4, and 5, comprising Ground, Power Out, Data Positive, and Data Negative, respectively, in conjunction with accessory-mounted isolation or other safety components. Under this pin-out arrangement, encoded data may be used for accessory identification. Those skilled in the art will appreciate that many other pin-out arrangements are possible, including arrangements for a self-powered electrophysiology sensor accessory. 
         [0095]    As an example, electrophysiology sensor accessory  33  is an electrocardiograph (ECG) sensor consisting of a silver chloride electrode, analog front end, digital-to-analog converter, microprocessor, and USB controller. 
         [0096]      FIG. 14  comprises  FIGS. 14A ,  14 B,  14 C, and  14 D and shows one example of a game controller accessory.  FIG. 14A  is an isometric top view of game controller accessory  36  in its closed state. 
         [0097]      FIG. 14B  is a bottom view of game controller accessory  36  of  FIG. 14A . As in the case of solar charging accessory  30 , docking connectors  4  as shown in  FIG. 2  are used, but docking connectors  5  as shown in  FIG. 3  could also be used. 
         [0098]      FIG. 14C  is a back view of mobile electronic device  1  with docked game controller accessory  36  in one of its partially open states. Game controller base tracks  40  allow game controller accessory sliding control panel  37  to slide into the partially open state shown in  FIG. 14C . 
         [0099]      FIG. 14D  is front view of mobile electronic device  1  with docked game controller accessory  36  in its fully open state. This state is convenient for holding the mobile electronic device  1  while operating the game controller accessory buttons  39 . As an example, given the device pin-out shown in Table 1, game controller accessory  36  might use pins 1, 2, 4, and 5, comprising Ground, Power Out, Data Positive, and Data Negative, respectively. Under this pin-out arrangement, encoded data may be used for accessory identification. Those skilled in the art will appreciate that many other pin-out arrangements are possible. As an example, game controller accessory  36  is a thumb-operated keypad consisting of a mechanical-slide subassembly, user interface switches, a microcontroller, and a USB controller. 
         [0100]      FIG. 15  comprises  FIG. 15A  and  FIG. 15B .  FIG. 15A  is an isometric back view of a generic docking system comprising generic docking accessory  61  and mobile electronic device  1 , device  1  forming docking platform  2 , docking platform  2  comprising generic docking accessory cavity  41  and docking connection system  49 . Docking accessory  61  might for instance be a battery, breathalyzer, massage paddle, LED light, camera flash, radio-frequency identification (RFID) tag, RFID reader, hand crank charger, hand pump charger, game controller, laser level, laser water purifier, scent generator, self-defense taser, lie detector device, credit card reader, robotic foot, low-energy display, thermometer, power adaptor, halitosis detector, hygrometer, digital scale, anemometer, water analysis tool, altimeter, barometer, wireless headset, mechanical keyboard, optical projection keyboard, proximity sensor, projector, remote control, memory card, headphones connector, accelerometer, pedometer, 3D motion tracking device, security perimeter, electrophysiology sensor, biofeedback device, diagnostic ultrasound device, therapeutic ultrasound, defibrillator, blood glucose monitor, pulse oximeter, finger print ID, laptop data lock, speaker, solar panel, walkie talkie, laser hair removal device, laser hair stimulator, or UV disinfector. 
         [0101]      FIG. 15B  is an isometric back view of the mobile electronic device  1  of  FIG. 15A  with isometric back views of at least six embodiments of docking platform  2  radiating outward from device  1 . Clockwise from the upper left corner of  FIG. 15B , the first embodiment of docking platform  2  is the platform of  FIG. 2 , with Detail A view of docking connector first embodiment 4. The second embodiment of docking platform  2 , center top of  FIG. 15B , is the platform of  FIG. 3 , with Detail B view of docking connector second embodiment 5. The third embodiment of docking platform  2 , top right of  FIG. 15B , comprises oval docking accessory cavity  51  and two docking connectors  52 , each formed at one of the centers of the two circular ends of oval accessory cavity  51 . Detail C is a detailed view of docking connector  52 , connector  52  comprising annular connector cavity  53 , cavity  53  further comprising a set of ten docking connector electrical contacts  19 , this set of ten contacts comprising two duplicate sets of five electrical contacts  19 , this pair of duplicate sets of contacts, together with two female aligning elements  54 , enable attached docking accessories to be oriented in either of two positions separated by 180 degrees of rotation, connector  52  further comprising annular magnetic attachment system  55 , attachment system  55  comprising a disc-shaped magnetic element formed beneath the surface of connector  52  to enable compatible docking accessories to form detachable magnetic attachments to connector  52 . The fourth embodiment of docking platform  2 , bottom right of  FIG. 15B , comprises oval docking accessory cavity  51  and docking connector  58 , connector  58  comprising magnetic attachment system  59 , magnetic system  59  comprising a single elongated magnetic element formed beneath the bottom face of accessory cavity  51  to enable docking connector  58  to form a detachable attachment to multiple independent docking accessories, the docking accessories operable to wirelessly transmit and/or receive at least one of data or power with mobile device  1 . Note that docking connector  58  comprises no electrical contacts. The fifth embodiment of docking platform  2 , bottom center of  FIG. 15B , comprises hourglass docking accessory cavity  60  and two docking connectors  56 , connectors  56  each comprising fixed tab  62 , spring tab  57 , and docking connector electrical contacts  19 . Detail D is a detailed view of spring tab  57  and five electrical contacts  19 . Docking connector  56  is operable to form a detachable attachment to compatible docking accessories that are wedged between fixed tab  62  and spring tab  57 . To release the docking accessories, spring tab  57  slides in the direction opposite the docking accessory. The sixth embodiment of docking platform  2 , bottom left of  FIG. 15B , comprises oval docking accessory cavity  51  and docking connector  42 . Detail E is a detailed view of docking connector  42 , connector  42  comprising eight docking connector cavities  43 , nine electrical contacts  19 , one female aligning element  44 , docking connector magnetic attachment system  50 , attachment system  50  comprising a single annular magnetic element formed beneath the surface of accessory cavity  51 , for forming detachable attachments with compatible docking accessories. 
         [0102]      FIG. 16  is an isometric drawing showing an embodiment of the present invention implemented with a tablet device  32 . In this embodiment, tablet device  32  is shown with one attached generic expanding docking accessory  8 , whose expanding docking accessory body measures roughly five inches in diameter, and whose expanding docking accessory accordion expands roughly three inches away from the backside of tablet device  32 . 
         [0103]    While the exemplary preferred embodiments of the present invention are described herein with particularity, those skilled in the art will appreciate various changes, additions, and applications other than those specifically mentioned, which are within the spirit of this invention. For example, mobile electronic device  1  might be a mobile media tablet, as in  FIG. 16 . Docking platform  2  would then be sized accordingly, and the appropriate number and configuration of cavities provided. The platform, cavities, and docking connectors might have different shapes and sizes. The docking connectors might have different modes of attachment to docking accessories. Accessories might be self powered, and might communicate with the device wirelessly, for example via Bluetooth®. E.g., a digital scale accessory might be docked for transport, then removed and positioned next to the device, while communicating via Bluetooth®, as an object is placed on the scale and its weight displayed on the screen of the device. Accessories might be operable for wireless power transmission between themselves and the device.