EP2238691A2

EP2238691A2 - Mobile computing device with moveable housing segments

Info

Publication number: EP2238691A2
Application number: EP08858838A
Authority: EP
Inventors: Michael Francisco; Troy Hulick; Yoshimichi Matsuoka; Jose Efrain Alcorta; David Northway; Troy Carter; Heather Lynn Klaubert; Susanne Meissner
Original assignee: Palm Inc
Current assignee: Qualcomm Inc
Priority date: 2007-12-11
Filing date: 2008-12-11
Publication date: 2010-10-13
Also published as: WO2009076561A3; EP2238691A4; WO2009076561A2

Abstract

A mobile computing device includes a first housing segment and a second housing segment. The first housing segment includes a display surface on a front exterior face. The second housing segment that is slideably coupled to the first housing segment to move between an extended position and a contracted position. The second housing segment includes a keypad provided on a surface that is exposed for use when the device is in the extended position. The first housing segment and the second housing segment are coupled so that a path of motion followed by one of the first housing segment or second housing segment when moving between the extended position and the contracted position is continuously arced.

Description

MOBILE COMPUTING DEVICE WITH MOVEABLE HOUSING

SEGMENTS

TECHNICAL FIELD

[0001] The disclosed embodiments relate generally to the field of mobile computing devices. In particular, embodiments described herein provide for a slider assembly for a housing of a mobile computing device.

BACKGROUND

[0002] Over the last several years, the growth of cell phones and messaging devices has increased the need for keypads and button/key sets that are small and tightly spaced. In particular, small form-factor keyboards, including QWERTY layouts, have become smaller and more tightly spaced. With decreasing overall size, there has been greater focus on efforts to provide functionality and input mechanisms more effectively on the housings.

[0003] In addition to a keyboard, mobile computing devices and other electronic devices typically incorporate numerous buttons to perform specific functions. These buttons may be dedicated to launching applications, short cuts, or special tasks such as answering or dropping phone calls. The configuration, orientation and positioning of such buttons is often a matter of concern, particularly when devices are smaller.

[0004] At the same time, there has been added focus to how displays are presented, particularly with the increase resolution and power made available under improved technology. Moreover, form factor consideration such as slimness and appearance are important in marketing a device. [0005] Production of mobile computing devices is made more difficult in the fact that conventional devices use many parts or components. The housing for a typical conventional mobile computing device typically includes a top shell, a back shell, and a midframe. The components that comprise the contents of the housing, such as printed circuit boards and display assemblies, normally require additional assembly steps. Many devices include additional housing features that are provided on the device separately. The result is that the devices often have numerous interconnected components. In the case of the housing, the numerous components yield devices that are less durable and more difficult to assemble.

[0006] In order to increase the features and functionality on a computing device, many mobile computing devices employ a sliding construction between two segments of the housing. Typically, in a sliding construction, the housing a computing device is separated into two distinct parts that are coupled to one another to slide. The parts of the housing can be extended or contracted, to reveal functionality and/or adjust the overall size of the computing device.

BRIEF DESCRIPTION OF THE DRAWINGS

[0007] FIG. IA thru FIG. IF illustrate a mobile computing that is structured to include moveable housing segments that are positionable between an extended and contracted position, in accordance with an embodiment of the invention.

[0008] FIG. 2A and FIG. 2B illustrate a mobile computing device that includes moveable housing segments are positionable between a first extended position, a contracted position, and a second extended position, according to an embodiment of the invention. [0009] FIG. 3A thru FIG. 3C illustrate a back housing segment of a computing device such as described with FIG. IA-FIG. IF, according to an embodiment of the invention.

[00010] FIG. 4A-FIG. 4C illustrate a front housing segment of a computing device such as described with FIG. IA-FIG. IF, according to an embodiment of the invention.

[00011] FIG. 5A is a side view of a mobile computing device that utilizes a slider assembly and includes housing segments that can be moved relative to one another from between an extended position and a contracted position, the housing being shown in the contracted position, under an embodiment of the invention.

[00012] FIG. 5B is a side view of the mobile computing device of FIG. IA under an embodiment, the housing being shown in the extended position.

[00013] FIG. 6A is a cross-sectional view of the mobile computing device shown with a slider assembly as viewed by a perspective of lines A-A in FIG. 5A, under an embodiment of the invention.

[0014] FIG. 6B illustrates the slider assembly shown in FIG. 6A, as separated from the housing, under an embodiment of the invention.

[0015] FIG. 6C is a close-up of the slider assembly of FIG. 6A, under an embodiment of the invention.

[0016] FIG. 7A is a front cross-sectional view of the mobile computing device of FIG. 5A along lines B-B, showing the housing of and slider assembly of the mobile computing device being positioned in a contracted position, under an embodiment of the invention. [0017] FIG. 7B is a frontal view of the slider assembly of FIG. 7A, showing the plates of the slider assembly being positioned in an extended position, under an embodiment of the invention.

[0018] FIG. 8A and FIG. 8B illustrate an alternative coupling configuration for use on a slider assembly, under an embodiment.

[0019] FIG. 9A and FIG. 9B illustrate another coupling configuration for a slider assembly, under an embodiment.

[0020] FIG. 1OA and FIG. 1OB illustrate a slider assembly that incorporates a biasing mechanism, according to an embodiment.

[0021] FIG. HA illustrates a serpentine spring for use as a biasing mechanism of a slider assembly, under an embodiment.

[0022] FIG. HB illustrates a torsional spring for use as a biasing mechanism of a slider assembly, under an embodiment.

[0023] FIG. HC illustrates a variable cross-section that may be provided on a section of a spring that forms a biasing mechanism for a slider assembly, under an embodiment.

[0024] FIG. HD illustrates an optional rectangular or square cross-section of a spring for a biasing mechanism, under an embodiment.

[0025] FIG. 12 illustrates a slider assembly that utilizes an arrangement of magnets for a biasing mechanism of a slider assembly, under an embodiment.

[0026] FIG. 13A is a front isometric view of a slider assembly in a contracted position, under an embodiment.

[0027] FIG. 13B is a front isometric view of a slider assembly in an extended position, under an embodiment of the invention. [0028] FIG. 14 illustrates housing segments that are moveable along a path of motion that is continuously arced or non-linear, under an embodiment of the invention.

[0029] FIG. 15 is a hardware diagram of a system for use with the embodiments described.

DETAILED DESCRIPTION

[0030] Embodiments described herein provide for a mobile computing device that is constructed of moveable housing segments. In an embodiment, at least one of the housing segments is display dominant. Still further, another embodiment provides that housing segments of the mobile computing devices are moveable along a path of motion that is continuously arced.

[0031] Still further, one or more described herein provide for a computing device that emphasizes and isolates the keypad and the display surface. In cellular telephony/messaging, for example, the display surface and keypad are the primary focus of user attention when interacting with the device. As will be described, embodiments described herein heighten the user's experience with the primary interfaces. In particular, an embodiment provides for an entire housing segment that is display-dominant. Additionally, an embodiment provides for a separate housing segment that provides a keypad, apart from the display dominant housing segment.

[0032] An embodiment includes a mobile computing device having a first housing segment and a second housing segment. The first housing segment includes a display surface on a front exterior face. The second housing segment that is slideably coupled to the first housing segment to move between an extended position and a contracted position. The second housing segment includes a keypad provided on a surface that is exposed for use when the device is in the extended position. The first housing segment and the second housing segment are coupled so that a path of motion followed by one of the first housing segment or second housing segment when moving between the extended position and the contracted position is continuously arced.

[0033] In another embodiment, a mobile computing device includes a first housing segment and a second housing segment. The first housing segment includes a display surface on a front exterior face. The second housing segment is slideably coupled to the first housing segment to move between an extended position and a contracted position. The second housing segment includes a keypad provided on a surface that is exposed for use when the device is in the extended position. In an embodiment, substantially all of the front exterior face is smooth and seamless.

[0034] With regard to some quantitative expressions used herein, the expression "substantially all" means 90% or more. Furthermore, the term "majority" means at least 50% more than 50% of a stated quantity or comparison.

[0035] Embodiments described herein provide for a mobile computing device that includes a housing assembly having a front segment and a back segment. The front and the back housing segments are slideably coupled using a slider assembly that is integrated into a thickness of each housing segment. The slider assembly enables the front and back housing segments to be moved between at least one extended position and a contracted position. Among other benefits, a slider assembly such as described is durable against forces that a user may apply that are not in the direction of the slide motion that the assembly permits. [0036] According to an embodiment, the motion of the front and back housing segments is arced. In one embodiment, the front and back housing segments may be slid along an arc between a contracted and extended position. When the motion between housing segments includes an arc, the possibility of the user mishandling the housing segments and applying forces that are against the natural motion of the housing segments is increased. Embodiments described herein include various features to strengthen and enhance the durability of a slider assembly in such an implementation.

[0037] Still further, embodiments described herein include a slider assembly that is durable, particular to mishandling by the user, while at the same time enhancing the tactile feel of housing segments moving between an extended and contracted position. In particular, one or more embodiments provide a slider assembly that includes or is provided with a biasing mechanism that biases the housing segments towards being in only an extended position or in a contracted position.

[0038] According to an embodiment, a mobile computing device is provided that includes a front housing segment and a back housing segment. The front housing segment includes a first front slot and a first front securement feature or cleat. The back housing segment includes a first back slot and a first securement feature or cleat. The front housing segment and the back housing segment are positioned so that the first back securement feature is received and slideably engaged with the first front slot, and the first front securement feature is received and slideably engaged with the first back cleat. A combination of (i) the first back securement feature being received and slideably engaged with the first front slot, and (ii)the first front securement feature being received and slideably engaged with the first back securement feature, enable the front housing segment and the back housing segment to slide along a path that includes an extended position and a contracted position. As described with one or more embodiments, the path may be arced or otherwise include a radius of curvature.

[0039] According to another embodiment, a slider assembly is provided for a computing device housing. The slider assembly includes a front plate and a back plate. The front plate includes at least a first front slot and at least a first front securement feature that extends from the front plate. The back plate is slideably coupled to the front plate by including (i) at least a first back slot that receives and is slideably engaged with the first front securement features of the front plate, and (ii) at least a first back securement feature that is received and slideably engaged with the first front slot of the front plate. The front plate is structured to integrate within a front housing segment of the computing device, and the back plate is structured to integrate within a back housing of the computing device, so that the front housing segment and the back housing segment are slideably coupled to one another by the front plate and the back plate.

[0040] As used herein, directional terms such as 'front' and 'back' are meant to be interpreted as being referenced to the general direction of view by a user when normally using a device being described. Thus, the 'front housing segment' of the device is the housing segment that is most near to the user when the user normally operates a computing device being described.

[0041] SLIDER WITH ARCH MOVEMENT

[0042] FIG. IA thru FIG. IF illustrate a mobile computing device having a housing construction that includes moveable or slideable segments, under an embodiment of the invention. According to an embodiment, the mobile computing device 100 is equipped with cellular telephony and data resources, so as to enable cellular telephony and messaging. The device 100 may correspond to a cellular telephony/data devices, capable of enabling voice/telephony communications, messaging services (e.g. email, Short Message Service (SMS), Multimedia Message Service (MMS), Instant Messaging) and/or other functionality such as media playback, Global Positioning System (GPS) functionality, wireless fidelity (WiFi) or Internet access, and image/video capture. As such, the device 100 may be relatively small, such as in the form of a handheld device.

[0043] FIG. IA is a frontal view of the mobile computing device 100 in an extended position, under an embodiment. The mobile computing device 100 includes a front housing segment 110 and a back housing segment 150. The front and back housing segments 110, 150 may be slideably or moveably coupled so that the two segments may be moved between an extended position (FIG. IA and FIG. IB) into a contracted position (FIG. 1C and FIG. ID). In the extended position, a length L of the overall device is maximized.

[0044] Each housing segment 110, 150 may carry functionality and/or devices. In one implementation, the front housing segment 110 may provide a display surface 412 (see FIGs. 4A and 4B) that is touch-sensitive and/or includes various user- interface features. These may include buttons, multi-way mechanical features, 'soft' features (such as touch-sensitive surfaces with or without computer-generated graphics) or switches. The back housing segment 150 may carry a keypad or keyboard 154 or other functionality that is exposed when the computing device 100 is in the extended position (see FIG. 3C).

[0045] The front housing segment 110 includes a front exterior face 112, which corresponds to a contoured or planar surface that is viewable from a frontal perspective. In an embodiment, the exterior front face 112 is substantially smooth and seamless, while being equipped with different interface features, such as display areas, touch-sensitive buttons, and button-like actuation mechanisms. As will be described, most, if not all, of the user- interface features are provided as a unitary or integral part of the smooth exterior surface that comprises the front exterior face 112. As described with one or more embodiments below, for example, the front exterior face 112 may include a display surface and input features in the form of sensor regions and/or contact or touch- sensitive display regions. These regions may include computer- generated content or be provided as static button-like input features.

[0046] The back housing segment 150 includes a front exposable surface 152 on which a keyboard 154 or other mechanical interface is provided. In an embodiment shown, the keyboard 154 provides individual buttons or key structures that are separately actuatable to provide individual letters of the alphabet. The keyboard 154 may also include numbers or key that are operable in a numeric mode. Still further, various special characters may be provided or included on the keyboard. Other types of keypads (e.g. number pad) or keyboard configurations are also possible. For example, the keyboard 154 may include toggle-key structures, where individual key structures are actuatable into one of two or more states, and each actuated state has a separate character value.

[0047] FIG. IB is a side view of the mobile computing device 100 in the extended position. According to an embodiment, the front and back housing segments 110, 150 are curved or contoured, and their motion relative to one another is not linear, but arced. In the extended position, an embodiment provides that the exterior front face 112 is tilted towards an angle of where the user is when holding the device in a normal operating position. In this position, the top end 111 of the front housing segment 110 is leaning forward. Likewise, the surface 152 of the back housing segment 150 may be contoured to be non-linear. In one embodiment, the surface 152 is tilted so that a region of the back housing segment on which the keyboard 154 is provided is tipped towards the user when the device is held in an upright position.

[0048] FIG. 1C is a frontal view of the mobile computing device 100 in a contracted or closed position, under an embodiment. In the contracted state, an overall length L of the device 100 is minimized. In one embodiment, the contracted position coincides with the back housing segment 150 (see FIG. IA and FIG. IB) being slid completely behind the front housing segment 110. In such an embodiment, none of the back housing segment 150 is viewable from the front view. However, in an alternative variation, the back housing segment 150 may include one or more sections that are viewable from the front when the device is contracted. For example, the back housing segment 150 may include a section that extends below the front housing segment 110 when the two segments are moved into the contracted state.

[0049] FIG. ID is a side view of the mobile computing device 100 in the contracted or closed position. As shown in FIG. ID, the mobile computing device 100 may collapse into the contracted position so to form a clam shaped device.

[0050] FIG. IE illustrates a path of motion of the housing segments moving from the extended position into the contracted position, under an embodiment. As shown by an arrow P₁ when sliding from the contacted position to the extended position, an embodiment provides that the movement of a given point on either of the housing segments 110, 150 may be arced or otherwise along a radius of curvature. The arched or curvature may be slight, but under such an embodiment, the sliding motion between the two positions is non-linear.

[0051] FIG. IF is a rear view of the mobile computing device in the extended position, according to an embodiment. A back exterior face 122 of the front housing segment 110 may be exposed. In an embodiment shown, the exposed back exterior face 122 is smooth and featureless. In one embodiment, the surface is metallic, and possibly reflective to enable its use as a mirror. Unlike many conventional approaches, structural features (e.g. tracks, mechanical attachment mechanisms) used to couple two housing segments on a mobile device are confined, to enable the back exterior face to be exposed as a smooth surface. The manner in which the two housing segments 110, 150 may be slideably coupled to move in an arch between the extended and contracted positions is illustrated with one or more embodiments described below.

[0052] SECOND EXTENDED POSITION

[0053] While an embodiment such as shown and described with FIG. IA thru FIG. IF describe a mobile computing device having an extended and a contracted position, another embodiment optionally provides for the computing device 100 to be structured so as to provide a second alternative extended position. In such an embodiment, the device 100 may be moved between a first extended position (FIG. IA and FIG. IB) and a contracted position along an arc, such as described above, and also between the contracted position and a second alternative extended position.

[0054] FIG. 2A and FIG. 2B illustrate the mobile computing device 100 positioned in a second extended position. The mobile computing device 100 may be manipulated into the first extended position that corresponds to that shown with FIG. IA and FIG. IB. Likewise, the mobile computing device may include the contracted position that corresponds to that shown with FIG. 1C and FIG. ID. As shown by an embodiment of FIG. 2A, from the contracted position, the device may be moved into the second extended position. In the second extended position, a surface section 160 of the back housing segment is exposed. The surface section 160 may be equipped with or provided hardware or other functionality, such as a connector (e.g. micro-SD card, or SD Card), a camera lens or component, buttons or other interface features, or a laser pointer.

[0055] With reference to FIG. 2B, the motion of the back housing segment 150 moving into the second extended position is shown by path of motion arrow P'. In one implementation, the path of motion of the front and back housing segments 110, 150 being moved from the contracted position to the second extended position may include the same curvature as the motion of the two segments being moved from the first extended position to the contracted position. Alternatively, the motion between the first extended position and the contracted position, and between the contracted position and the second extended position, may be different. For example, the motion between the first extended position and the contracted position may be along a first radius of curvature, while the motion between the contracted position and the second extended position may be linear, or alternatively, along a second radius of curvature.

[0056] BACK HOUSING SEGMENT

[0057] FIG. 3A thru FIG. 3C illustrate the back housing segment 150 of the housing when the housing segments are positioned in the extended position, according to an embodiment of the invention. As described in FIG. IA and FIG. IB, the exposable surface 152 may be accessible as the back housing segment 150 is moved into the extended position. The surface 152 of back housing segment 150 may include the keyboard 154 and/or other user- interface features. Example of such other user-interface features include, for example, application buttons, mechanical navigation interface (such as a 5-way or multi-way button or button set for navigation and selection), application buttons and/or other dedicated buttons or switches. By including most, if not all, of the mechanical user-interface features on the back housing segment 150, an embodiment such as shown enables the front housing segment 110 to be display-dominant and substantially seamless.

[0058] FIG. 3B is a close-up of a region A of FIG. 3A, under an embodiment of the invention. In an embodiment, the exposed surface 152 may be recessed or sunken on the back housing segment 150, at least with respect to a protruding edge that forms a lip 352. The lip 352 may circumvent the exposed surface 152. A depth as measured from the boundary defined by lip 352 and the surface 152 may be sufficient to accommodate a height (as extended vertically from the exposed surface 152) of the keyboard 154 or other interface feature. This allows the back housing segment 150 to slide behind the front housing segment 110 when the housing segments are moved into the contracted position.

[0059] FIG. 3C is an isometric front view of the device 100, showing the surface of the back housing segment, under an embodiment. The lip 155 circumvents the border of exposed surface 152 and includes an inner wall that provides depth. Keypad 154 resides on the exposed surface 152, which as mentioned, is recessed. Other mechanical user-interface features that may be provided on the exposed surface 152 include button combinations that may be actuated to cause application functions or launch, call- answer/hang-up (in phone-device implementations), or scrolling and navigation operations. In the case of scrolling or navigation operations, a combination of buttons or mechanical actuators may be used to provide a multi-actuated-state interface that enables both directional and selection input. For example, a pad or combination of buttons may surround a center selection button to enable both directional or selection input to be entered.

[0060] As an alternative or addition, any of the mechanical actuation mechanisms described, such as the keypad 154, buttons and/or multi-way mechanism, may be provided through a sensor interface, such as a touch interface or light-sensitive interface that is used to detect hand movements and/or device orientation. The sensory interface may be provided in addition to any other sensory interface provided with the front housing segment 110.

[0061] FRONT HOUSING SEGMENT

[0062] FIG. 4A-FIG. 4C illustrate the front housing segment 110 for computing device 100, according to one or more embodiment. As described, an embodiment provides that the front housing segment 110 is display-dominant. As display-dominant, most of the interface features and surface area is dedicated for use as a display surface or display interface (e.g. computer-generated soft buttons). Moreover, one or more embodiments provide that the front housing segment 110 includes various features that accentuate the segments appeal and functionality for display surface viewing and soft-user interface feature operability.

[0063] With reference to FIG. 4A, the front housing segment 110 of device 100 is shown to be dominant in display surface and optionally, soft user-interface features, such as touch areas and/or display surfaces. As the front housing segment 110 is dominant for such soft features, a substantial amount of the total area of the front face 112 is either a display surface 412 or a region on which various soft features 414, 416 and input areas are provided. The display surface 412 includes any surface that has computer- generated light patterns, as well as surfaces illuminated from light sources that are not computer-generated. For example, light sources (e.g. such as discrete light sources) may be used to illuminate specific regions of a translucent thickness in combination with touch-sensors, so as to create soft-buttons on the surface of the front housing segment 110.

[0064] In an embodiment, the area of the display surface 412 may be represented by dimensions a and b, which occupies a portion of the overall planarized area (i.e. without surface curvature) of the front surface of the housing segment 110, as represented by dimensions A and B. In an embodiment, the front face 112 is display-dominant so as to include soft user-interface features, with a substantial amount of the area being dedicated to providing a display surface 412 or its soft features. In one embodiment, a substantial majority of the area on the front face 112 (i.e. an area in excess of 60% of the total area of the front face 112) is dedicated to providing the display surface 412 and/or soft features (which may or may not be computer-generated).

[0065] Still further, one implementation provides for inclusion of isolated and small-profile mechanical features, including buttons or multi-way mechanisms. Features such as capacitive surfaces, light- sensitive surfaces, resistive sensors and touchpads may all be included on the front face 112. However, under one embodiment, the features may be incorporated or integrated into the display surface, and/or occupy a perimeter boundary in which the display surface 412 occupies the substantial majority of the front housing segment.

[0066] Still further, one implementation provides that the user- interface features 414 and/or 416 are provided as display surfaces that are separated or otherwise apart from the main display surface 412. For example, the user-interface features 414 may be provided as translucent thicknesses, with or without printed graphics, that overlay individual Light Emitting Diodes (LEDs) or other discrete light sources. The user-interface features 414 may be combined with capacitive sensors or light sensors to detect user-touch touch or interaction.

[0067] According to an embodiment, the display surface 412, including the soft features 414, 416, is flush with its surrounding area. As an addition or alternative, an embodiment provides that an extended area 411 (shown by phantom lines 411) that includes display surface 412 and soft features 414, 416 is seamless and contoured. The result is a substantially smooth and display- dominant front housing segment 110.

[0068] In an embodiment, the device 100 includes a mechanical interface 461 on the front exterior face 112. The mechanical interface 461 may correspond to a button or other push- mechanism. Selection actions or other functions may be performed in connection with, for example, soft features 414, 416 and/or independently.

[0069] FIG. 4B is a lengthwise side-cross sectional view of the front housing segment 110, as viewed along lines D-D, under an embodiment. The side cross-sectional view shows the display assembly 450 including a printed circuit board 452 and a liquid crystal display (LCD) 454, mounted underneath a clear/transparent or translucent shell 460. The clear or translucent shell 460 includes an exterior surface 462 that provides the front exterior face 112. Exterior surface 462 is shaped to be seamless and/or smooth. Additionally, the exterior surface 462 may also be contoured outward. The exterior surface 462 may wrap around inward towards a mid-section, with side sections 464, 466 extending inwards towards a back face (not shown) of the front housing segment. A chamber or space may be provided under the shell 460 and surrounded by the side section 464, 466. The LCD 454 may be provided within that chamber or space. Transition to the side sections 464, 466 may also be smooth, or uniformly formed with the remainder of the shell 460.

[0070] In an embodiment, a length VL of the display surface 412 (as provided by the LCD 454) extends a majority of an overall length L of the front exterior face 112. In one embodiment, the length VL is at least 60% of the overall length. A length that includes the display surface 412 and a sensory region SR, where, for example, touch from the user is detected, may overlap and/or extend beyond the length of the display surface.

[0071] FIG. 4C is a widthwise side-cross sectional view of the front housing segment, as viewed along lines E-E, under an embodiment. The shell 460 is shown to include a curvature when viewed widthwise on the cross-section. The curvature may be outward or convex. The shell 460 may be sufficiently small so that the bend or extra thickness that results from the contour of the shell 460 does not affect the user's view of the LCD 454 just under the shell 460.

[0072] In an embodiment, the shell 460 is formed from plastic that is shaped during a molding process. The molding process may yield the shell 460 with the curvature, side-sections 474, 476, and its seamless characteristics. In an embodiment, a width VW of the LCD 454 (or display surface 112) extends a substantial portion of the overall width W of the device.

[0073] FIG. 5A is a side view of a mobile computing device that utilizes a slider assembly and includes housing segments that can be moved relative to one another from between an extended position and a contracted position, with the housing being shown in the contracted position, under an embodiment. With reference to FIG. 5, a device 500 includes a housing assembly 506 that is formed from a front housing segment 510 and a back housing segment 550. The front and back housing segments 510, 550 are coupled to enable the segments to be moved relative to one another form the contracted position (as shown by FIG. 5A) into the extended position (FIG. 5B). By moving between extended and contracted positions, an overall length L of the device 500 may be maximized (extended position, shown in FIG. 5B) or minimized (contracted position, shown in FIG. 5A).

[0074] The device 500 may correspond to a cellular telephony/data devices, capable of enabling voice/telephony communications, messaging services (e.g. email, Short Message Service (SMS), Multimedia Message Service (MMS), Instant Messaging) and/or other functionality such as media playback, Global Positioning System (GPS) functionality, wireless fidelity (WiFi) or Internet access, and image/video capture. As such, the device 100 may be relatively small, such as in the form of a handheld device.

[0075] Each housing segment 500, 550 may carry functionality and/or devices. In one implementation, the front housing segment 510 may provide a display interface (not shown) that is touch- sensitive and/or includes various user-interface features. These may include buttons, multi-way mechanical features, 'soft' features (such as touch-sensitive surfaces with or without computer-generated graphics) or switches. The back housing segment 550 may carry a keypad or keyboard or other functionality that is exposed when the computing device 500 is in the extended position (FIG. 5B). [0076] In an embodiment, an overall form factor of housing assembly 506 provides an outward contour on one or both of the housing segments. In one embodiment, the front housing segment 510 includes an exterior surface 512 that includes a display area (not shown). The exterior surface 512 may be smooth or beveless. As will be described, one embodiment provides that the front and back housing segments 510, 550 may be moved apart along a curved or other wise non-linear path P. Specifically, the front housing segment 510 may be moved along an arc in order to place the device 500 in the extended position (as shown by FIG. 5B).

[0077] FIG. 5B is a side view of the mobile computing device of FIG. 5A, with the housing segments 510, 550 being positioned so that the device 500 is in the extended position. In an extended position, a region 552 of the back housing segment 550 is exposed. Thus, for example, a keypad or other component or functionality may be made selectively accessible on the exposed region 552. The keypad or feature may be accessible for use when the front and back housing segments 510, 550 are separated into the extended position. Likewise, in the extended position, a back panel 514 of the front housing segment 510 is exposed. The surface may be used to provide functionality, a mirror or maintained featureless and smooth.

[0078] In order to enhance aesthetics and potentially maximize features that can be provided on respective surfaces of exposed region 552 and back panel 514, an embodiment provides for use of a slider assembly 530 that is shared amongst the top and the back housing segments 510, 550 and completely contained within a constantly overlapped section 520 of the housing assembly 506. The overlapped section 520 refers to a region of the interface between the front and back housing segments 510, 550 that are never exposed. The slider assembly may be positioned to operate in the interface region, which in an implementation shown, corresponds to a top boundary 551 of the back housing segment 550 and a back boundary 511 of the front housing segment 510. In an embodiment, the slider assembly 530 is not exposed on the interface region when the housing segments are in the extended position. By maintaining the slider assembly 530 completely within the overlapped section 520, the back panel 514 (when exposed), may for example, contain no visible structures that are required to enable the slider motion. For example, recesses, grooves, or sliding engagement structures may not be visible on the back panel 514, nor on any other surface that is exposable on the device 500.

[0079] Embodiments described herein provide for a slider assembly 530 that enables the front and back housing segments 510, 550 to be slid to and from the extended or contracted positions. The slider assembly 530 may be provided with low profile or thickness, to reduce an overall thickness dimension t of the device 500. In order to achieve such low profile, an embodiment provides that the slider assembly 530 is provided by structures that that occupy an integrated layer 532, 534 with each of the front and back housing segments 510, 550. In particular, the integrated layers 532, 534 may occupy a surface or depth thickness on or within the respective housing segments. Each integrated layer 532, 534 may occupy a thickness that is within and/or at the boundary of the corresponding housing segment, where that housing segment overlaps with the other housing segment to slide or move in one direction or the other. While the structures being described may be at a boundary or interface of one housing segment with respect to another, the structures are not lateral perimeter features, such as would be provided by a telescoping slider construction.

[0080] In one embodiment, the integrated layer 532 of the front housing segment 510 includes a front structure that (i) includes a slot or other receiving feature for receiving a mechanical mating structure from the back structure that is integrated into the thickness of the back segment 550, and (ii) extends one or more structures into corresponding slots or other receiving features on the structure of the back segment 550. Likewise, the integrated layer 534 of the back housing segment 510 includes a back structure that (i) includes a slot or other receiving feature for receiving a mechanical mating structure from the front structure that is integrated into the thickness of the front housing segment 510, and (ii) extends one or more structures into corresponding receiver structures on the integrated layer 532 of the back segment 510. The features of the integrated layers for providing the couplings described may be provided in mid-sections that are apart from the perimeter or lateral edges of the housing segments. In particular, the slider assembly 530 may be provided as a distributed but integral part of a slide interface formed by the back boundary 511 of the front housing segment 510 and the front boundary 551 of back housing segment 550

[0081] The structures of each integrated layer 532, 534 may be provided at or adjacent to the boundary or surface of that housing segment. The structures may be a unitarily formed feature of the respective housing segments. Alternatively, the structures may correspond to a secured or connected element. In an embodiment such as described with FIG. 6A-FIG. 6C, for example, the structures may be provided by metal plates that secure into the housing segments and provide, or are positioned adjacent to the interface with the other housing segment.

[0082] According to an embodiment, the structures that are provided within the integrated layer 532, 534 of each of the front and back housing segments 510, 550 includes a combination of slots (see FIG. 6A-FIG. 6C) and securement features (see FIG. 6A- FIG. 6C), or other similar protrusions or structures which are received by the slots. The securement features are able to travel within boundaries defined by slots, in order to enable the front and back housing segments 510, 550 to be moved between the extended and contracted positions.

[0083] SLIDER ASSEMBLY

[0084] FIG. 6A is a side cross-sectional view of the mobile computing device 500 shown with a slider assembly as viewed by a perspective of lines A-A in FIG. 5A, under an embodiment of the invention. As shown, the front and back housing segments 510, 550 are maintained closely together, but the two segments are at least partially separable in the direction of the length of the device to enable a sliding motion. The close proximity of the front and back housing segments 510, 550 enables use of a slider assembly 530 such as described with embodiments provided herein. In an embodiment, the slider assembly 530 includes features provided on the integrated layers 532, 534 of each segment that enable sliding motion amongst the two connected segments. As shown by the path of motion P₁ the sliding motion may be arced or otherwise include a positive radius of curvature.

[0085] As housing segments, each of the front and back housing segments 510, 550 retain internal electrical components of the device 500. The components include, for example, processors, memory components, interconnect elements, a printed circuit board, internal elements of a keypad of keyboard, a Liquid Crystal Display (LCD) of a display assembly, speakers or other audio equipment, wireless transmitters for different types of wireless communication mediums (e.g. Wireless Fidelity or WiFi, Bluetooth, WiMax cellular) and numerous other components. In one embodiment, one of the top or back housing segments 510, 550 is primary, in that it includes most of the internal components. For example, under one implementation, the front housing segment 510 may retain the display assembly and the processors and memory, while the back housing segment 550 retains the keypad, and the battery for the device 500. Connectors or accessory interfaces may be provided on either housing segment. A flex cable or other interconnect mechanism may be used to electrically couple the components of one housing segment to the other. For example, the keypad and battery in the back housing segment 550 may be electrically interconnected to a PCB retained in the front housing segment 510 through a flex cable.

[0086] FIG. 6B illustrates the slider assembly apart from a housing assembly (such as shown in FIG. 5 or FIG. 6B), under an embodiment. In an embodiment, the slider assembly 530 includes a front plate 632 and a back plate 634, each of which provide or form part of the respective integrated layer 532, 534 (FIG. 5A and FIG. 5B). The front plate 632 may be secured or otherwise integrated with the back surface 511 (FIG. 5B) of the front housing segment 510. Likewise, the back plate 634 may be secured or otherwise integrated with a top surface 551 (FIG. 5B) of the back housing segment 550.

[0087] In an embodiment, each plate 632, 634 includes duplicate sliding retention features to retain the two housing segments 510, 550 connected to one another. In one embodiment, the front plate 632 includes a pair of the slots 610, 612 which are formed in the plate to extend in a lengthwise or longitudinal direction (i.e. in axis of L) of the device 500. Likewise, the back plate 634 includes slots 650, 652 which also extend in the longitudinal direction. Each slot 610, 612 of the front plate 632 may be used to receive a securement feature 662, 664 that is integrated or otherwise secured to the back plate 634. Each slot 650, 652 of the back plate 634 may be used to receive a securement feature 622, 624 that is integrated or otherwise secured to the front plate 632. The combination of the slot 610 of the front plate 632 and the securement feature 662 of the back plate 634 provide a first sliding coupling between the front and back housing segments 510, 550. In an embodiment shown, three additional sliding couplings may be formed by the combinations of (i) the slot 612 of the front plate 632 and the securement feature 664 of the back plate, (ii) the slot 650 of the back plate 634 and the securement feature 622 of the front plate 632, and (iii) the slot 652 of the back plate 634 and the securement feature 624 of the front plate 632.

[0088] In an embodiment shown by FIG. 6A-FIG. 6C, the positioning of the couplings along the width W (FIG. 6A) of the plates 632, 634 may be staggered. In another embodiment such as shown by FIGs. 9A and 9B, the couplings may be overlaid on one another and/or aligned end-to-end, or a combination thereof. In one arrangement shown, the couplings that correspond to those formed with slots 650, 652 of the back housing segment 550 are provided towards the perimeter of the cross-section shown, while the couplings that correspond to those formed with slots 610, 612 that are provided with the front housing segment 510 are provided more towards the interior.

[0089] Among other benefits, the use of four such couplings enables a sliding engagement between the front and back housing segments 510, 550 which is durable and also a guard against overuse or mishandling by the user. Mishandling may occur when a user pulls on one housing segment axially (i.e. along axis Z), so as to pull the segments apart in a direction that is not consistent with the sliding motion. The potential for such misuse is heightened as a result of an embodiment in which the path P is arced. The use of multiple couplings that are shared between the front and back housing segments 510, 550 facilitates handling of forces that may arise from the pulling apart or other mishandling of the housing segments 510, 550.

[0090] FIG. 6C is a close-up of the slider assembly of FIG. 6A, as indicated by region C of FIG. 6A, according to an embodiment. In the region shown, the securement feature 662 of the back plate 634 is engaged into the slot 610 of the front plate 632, and the securement feature 622 of the front plate 632 is secured into the slot 650 of the back plate 634. Each securement feature 622, 662 may be provided as a mechanical extension from the respective plate 632, 634. In one implementation, the securement features 622, 662 are cleats fastened to the respective plates. In another implementation, for example, the securement features 622, 662 are unitarily formed extensions or protrusions.

[0091] Each securement feature 622, 662 may include a body 672 that includes a retention feature. In one embodiment, the retention feature may be defined by top wall 675 and back wall 677 that define a vertical opening 678. The dimension of the vertical opening 678 is greater than a thickness of the plate 632, 634, so that the entire securement feature 622, 662 can slide in the corresponding slot 610, 650. In particular, a cross-dimension dl of the body 672 at where the vertical opening 678 is formed on each side may be just smaller than the cross-dimension ds of the corresponding slot so as to enable the securement feature to be retained and moved within the slot. A cross-dimension d2 of the body 672 at where either the top wall 675 or back wall 677 are formed may be greater than the overall cross-dimension ds of the corresponding slot, so to enable retention of the coupling.

[00092] FIG. 7A is a front sectional view of the mobile computing device of FIG. 5A along lines B-B, showing the housing of the mobile computing device being positioned in a contracted position, under an embodiment of the invention. The front and back plates 732, 734 may be aligned and engaged within the housing assembly 706 of the device 700. As described above, one embodiment provides for use of four couplings. The couplings include slots 710, 712 of the front plate 732 and the slots 750, 752 of the back plate 734, as well as securement features 722, 724 of the front plate and securement features 762, 764 of the back plate. The couplings provided on plates 732, 734 combine to enable each housing segment 510, 550 to be moved between the extended and contracted positions.

[0093] FIG. 7B is a frontal view of the mobile computing device of FIG. 5B, showing the housing of the mobile computing device being positioned in an extended position, under an embodiment. In FIG. 7B, the front plate 732 and back plate 734 are shown removed from the housing, with the two plates being aligned so that the housing is in the extended position. The securement features 722, 724 of the front plate 732 extend inward to engage the slots 750, 752 of the back plate 734. The securement features 762, 764 of the back plate 734 extend to engage the slots 710, 712 of the front plate 732. When the housing segments are moved into the extended position, the securement features 762,764 of the back panel 734 move downward in the slots 710, 712 of the front housing segment 732.

[0094] In a configuration of an embodiment shown by FIG. 7A and FIG. 7B, the slots 752, 750 of the back plate 734 are positioned outward, and the slots 710, 712 of the front plate 732 are positioned inward. Moreover, in an implementation shown, the plates 732, 734 in the contracted position retain the slots 710, 712 of the front plate 732 and slots 750, 752 of the back plate 734 in a side-to-side manner. The back plate 734 is moved relative to the front plate 732, so that securement features 762, 764 from the back plate 734 are (i) at the top end of the slots 710, 712 of the front plate 732 when the plates are in the contracted position, and (ii) at the back end of the slots 710, 712 when the plates are in the extended position. Thus, in the extended position, the slots 750, 752 of the back plate 734 are positioned end-on-end and to the side of the corresponding slots 710, 712 of the front plate 732.

[0095] As a variation to any of the embodiments of FIG. 7A and FIG. 7B, some or all of the lateral positioning of the slots 710, 712 of the front plate 732 and slots 750, 752 of the back plate may be reversed. For example, the slots 710, 712 of the front plate 732 may be outwardly positioned with respect to the slots 750, 752 of the back plate 734.

[0096] Various configurations may be implemented for the combination of the slots and securement features that form the sliding couplings between the housing segments 510, 550. FIG. 8A (extended position) and FIG. 8B (contracted position) show an alternative side-by-side configuration for the slots of the respective front and back plates 832, 834. More specifically, each of the slots 850, 852 of the back plate 834 may be provided adjacent to the slots 810, 812 of the front plate 832, as provided with an embodiment of FIG. 7A and FIG. 7B. However, in contrast to an embodiment of FIG. 7A and FIG. 7B, FIG. 8A shows the slots 850, 852 of the back plate 834 are also aligned end-on-end with respect to the slots 810, 812 of the front plate 832 when the two plates are in the extended position. FIG. 8B shows that slots 850, 852 are moved upwards towards a side-by-side position with corresponding slots 810, 812 of the front plate 832 when the two plates are in the contracted position. [0097] FIG. 9A and FIG. 9B shows a slot overlay configuration for when the plates are combined to move between the extended and contracted positions. FIG. 9A shows the front plate 932 and the back plate 934 in the contracted position, with the slot 910 of the front plate being aligned with the slot 950 of the back plate in an end-on-end fashion. When end-on-end, the securement feature 962 of the back plate 934 is received and engaged at a bottom end of the slot 910 of the front plate 932, and the securement feature 922 is received and engaged at a top end of the slot 950 of the back plate 934. FIG. 9B shows the front plate 932 and the back plate 934 in the extended position. In the extended position, the slot 950 of the back plate is moved to at least partially overlay the slot 910. When overlaid, the securement feature 962 of the back plate 934 is received and engaged at a top end of the slot 910 of the front plate 932, and the securement feature 922 of the front plate is received and engaged at a bottom end of the slot 950 of the back plate 934. Other couplings formed by other combinations of slots and securement features may optionally provided the same configuration.

[0098] Still further, other couplings that use, for example, slot and securement configurations, may combine any of the implementations shown in FIG. 7A-7B, FIG. 8A-FIG. 8B and FIG. 9A-9B and other variations thereof.

[0099] BIASING MECHANISM

[00100] According to one or more embodiments, a slider assembly of a computing device, such as provided by any embodiment described herein, may employ a biasing mechanism to enhance the usability and feel of the housing segments. In particular, a biasing mechanism may be employed to bias the housing segments 510, 550 (FIG. 5A and FIG. 5B) to remain in one or both of the contracted or extended positions. According to one embodiment, such a biasing mechanism would promote use of the device in only one of the two positions, rather than an intermediary position. Thus, for example, in the case where a user wishes to have access to the exposed region 552 (such as in the case where the user wishes to operate a keypad provided thereon), the user provides sufficient force to overcome the bias of the two housing segments to remain in the contracted position. Once sufficient force is applied, an embodiment provides that the housing segments (FIG. 5A and FIG. 5B) are biased into moving into the extended position. In one embodiment, the two housing segments travel between contracted position and extended position without ability to stop between. For example, only significant obstruction can prevent the device from moving into one of the contracted or extended positions (from the other of the position) once the movement into that position has been initiated.

[00101] FIG. 1OA and FIG. 1OB illustrate the use of a biasing mechanism that serves to bias a sliding assembly into a given position, according to an embodiment. The housing of the computing device may include a slider assembly 1030 comprising the front and back plates 1032, 1034. As with, for example, an embodiment of FIG. 7A and FIG. 7B, front and back plates 1032, 1034 may be aligned and engaged within the housing of the device. A biasing mechanism 1080 may be coupled to both the front plate 1032 and the back plate 1034 to bias and relax with movement of the plates relative to one another. In one embodiment, the biasing mechanism 1080 corresponds to a spring which may be formed from a combination of twisted or shaped elements, such as metal twisted into a given pattern.

[00102] As described above, one embodiment provides for use of four couplings. The couplings may be formed using the slots 1010, 1012 of the front plate 1032 and the slots 1050, 1052 of the back plate 1034, as well as securement features 1022, 1024 of the front plate 1032 and securement features 1062, 1064 of the back plate. The couplings provided on plates 1032, 1034 combine to enable each housing segment to be moved between the extended and contracted positions. Any of the configurations shown and described elsewhere (including with FIG. 7A and FIG. 7B, FIG. 8A and FIG. 8B, and FIG. 9A and FIG. 9B), as well as variations thereof, may be implemented using a biasing mechanism such as shown and described.

[00103] According to an embodiment, biasing mechanism 1080 is biased against enabling the plates to change position when the plates are in each of the contracted and extended position. In this regard, the biasing mechanism 1080 may be selected to be bistable, in that biasing mechanism 1080 tends to allow the plates 1032, 1034 to be in only the extended or contracted positions, and not in any intermediate positions. When in one of the extended or contracted positions, the biasing mechanism 1080 (e.g. spring) resists movement until sufficient force is applied, in which case the plates 1032, 1034 are moved into the other of the extended/contracted position.

[00104] Numerous spring configurations and arrangements may be used to provide desired biasing features. One important consideration in selecting, for example, a spring configuration is durability. In the case of mobile computing devices, usages can be heavy, and some consideration to making use of a durable spring or spring set as the biasing mechanism 1080 is beneficial.

[00105] FIG. HA illustrates a spring configuration for use with one or more embodiments. With reference to FIG. HA, a spring 1110 is secured to an anchor 1120 on one or both of the front and back plates 1032, 1034 (FIG. 1OA and FIG. 10B) that comprise the slider assembly. In an embodiment of FIG. HA, the spring 1110 is a serpentine construction, capable of pivoting about anchor 1110 while translating from the extended position 1112 to the contracted position 1114. The spring 1110 may be provided on one of the front or back plates 1032, 1034 (FIG. 1OA and FIG. 10B) to at least substantially (or partially) translate relative to another plate when the housing segments are moved between the extended and contracted positions. The end points of the spring's translation are shown by extended position 1112 and contracted position 1114.

[00106] The anchor 1120 is positioned between the positions 1112, 1114 to cause the spring to be relatively relaxed when in either of the positions 1112, 1114, and flexed when being in between the positions. The configuration of the spring 1110 is such that when the spring plates are pushed out of one of the contracted or extended positions 1112, 1114, the spring 1110 is pushed or biased into moving into the other of the contracted/extended positions 1112, 1114. As the plates are pushed from one position to the other, an end of the spring translates and pivots about the anchor. When the sprint 1110 is initiated towards the anchor, it biases, so to as push against the movement from the original position (contracted or extended). But the spring 1110 quickly releases to bias the movement into the new contracted or extended position.

[00107] FIG. HB shows another variation in which a torsional spring 1130 may be used as a biasing mechanism, under an embodiment of the invention. The torsional spring 1130 may be used similar to a manner described with the serpentine spring 1110 of FIG. HA. [00108] Numerous other spring constructions may be employed in addition or as an alternative to specific spring configurations shown and described. For example, under one embodiment, multiple springs may be used to provide the biasing mechanism. For example, two torsional springs may combine to enable a bi-stable biasing mechanism such as described with one or more other embodiments.

[00109] With regard to any of the spring embodiments described, one or more embodiments provide for structural features in the spring to increase the longevity of lifespan of the springs. With reference to an embodiment of FIG. HA, for example, the spring 1110 may include a variable cross-section dimension, by which the spring is made thicker (and thus stronger) at points of high stress or strain. With reference to an embodiment of FIG. HA, the spring 1110 may include a point of high strain 1142 and a point of low strain 1144. In order to enhance the durability of lifespan of the spring 1110, FIG. HC illustrates an embodiment in which a cross section 1162 of the point of high-strain 1142 (as represented by the diameter b2) is larger than the cross section 1164 of the point of low-strain 1144(as represented by the diameter bl) . According to an embodiment, various cross-sectional dimensions may be used on a single spring in order to adjust the strength of the spring at selective locations in some relation to the amount of strain that the identified point may receive.

[00110] According to an embodiment of FIG. HC, an overall cross section of the spring 1110 (FIG. HA) or 1130 (FIG. HB) may be made variable over the length of the spring in order to enhance the spring's longevity and performance over time. As an alternative or addition, FIG. HD shows the spring HlO (or other spring) with a rectangular or square shaped cross-section 1170. Such a cross-section inherently includes more material in the same dimension as its circular counterpart.

[00111] As an alternative to use of spring(s) for a biasing mechanism, one or more embodiments provide for use of magnets to facilitate movement of the plates (or corresponding housing segments) such as shown and described with any of the embodiments described above. FIG. 12 illustrates an embodiment in which a slider assembly includes magnets to create biases to maintain the housing segments of a device in a given position. In particular, a slider assembly 1230 is shown including a front plate 1232 and a back plate 1234. As described with, for example, an embodiment of FIG. 5A and FIG. 5B, the plates 1232, 1234 that comprise the slider assembly 1230 may be distributed into the respective front and back housing segments. The plates 1232, 1234 may be coupled using, for example, one or more combinations of a slot and securement feature, such as described with an embodiment Of FIG. 6A-FIG. 6C.

[00112] Rather than use springs, an embodiment of FIG. 12 provides for a series or arrangement of magnets to bias the plates 1232, 1234 into being in either the contracted position or the extended position. When the plates are in an intermediate position, the plates may be biased into moving into one of the extended or contracted positions. In this way, the series or arrangement of magnets may simulate the use of springs.

[00113] According to an embodiment, a magnet 1240 (or combination of magnets) may be provided with or integrated into the front plate 1232, and a magnet 1260 (or combination of magnets) may be provided with or integrated into the back plate 1234. Each of the magnets 1240, 1260 may be provided as a single piece, or as a combination of pieces. A repulsion magnet combination 1250 may be provided between the magnet(s) of the front plate 1232 and of the back plate 1234. The polarity and magnitude of the magnets may be used to create an attraction region 1214 that corresponds to the contracted position, and another attraction region 1216 that corresponds to the extended position. Additionally, the polarity and magnitude of the magnets 1240, 1260 may create repulsion region 1212. The positioning of the magnets provides that the repulsion region 1212 is positioned between the extended and contracted positions. When movement of one plate 1232, 1234 (and its housing segment) is initiated to push one housing segment away from another, the repulsion region 1212 may bias against the movement of the housing segments of device. Thus, the presence of the repulsion region 1212 requires the user to place a measurable force to push the housing segments to and from the extended/contracted positions. In an embodiment, the user applies such a force to move the housing segments apart. When the force is greater than the repulsion force, the application of the force causes the housing segments to overcome the bias of the old position and receive a new bias to direct them towards the other of the two positions.

[00114] While an embodiment of FIG. 12 provides for magnets to be secured or otherwise integrated with the front and back plates 1232, 1234, an embodiment provides that at least some of the magnets used are provided in the housing, apart from the plates. Thus, an embodiment provides that some or all of the magnets shown in an embodiment of FIG. 12 are provided apart from the plates, and in the housing assembly 506 (FIG. 5A) of the computing device.

[00115] PLATE IMPLEMENTATIONS [00116] FIG. 13A and FIG. 13B illustrate an alternative set of plates for use as a slider assembly, under an embodiment of the invention. As described with one or more other embodiments, the plates of the slide assembly may be integrated as layers into each of the housing segments that comprise the housing or housing assembly of a mobile computing device.

[00117] FIG. 13A is a front isometric view of a slider assembly 1330 in a contracted position. The slider assembly 1330 includes a front plate 1332 that is combined with a back plate 1334 to enable a sliding motion such as described with one or more embodiments provided above. In particular, front plate 1332 includes slots 1310, 1312 and cleats 1322, 1324, while the back plate 1334 includes slots 1350, 1352 and cleats 1362, 1364. The cleats 1322, 1324 of the front plate 1332 engage and slide within the slots 1350, 1352 of the back plate 1334, while the cleats 1362, 1364 of the back plate 1334 engage and slide within the slots 1310, 1312 of the front plate 1332.

[00118] As described with embodiments of FIG. 7A and FIG. 7B, FIG. 8A and FIG. 8B, and FIG. 9A and FIG. 9B, various slot configurations may be used. FIG. 13A and FIG. 13B is a front isometric view of the slot configuration in which slots are aligned end-on-end (i.e. vertical stagger) and side-by-side (horizontal stagger) when the housing segments are in the contracted position. In particular, FIG. 13A shows the implementation in which the front plate 1332 and the back plate 1334 are in the contracted position, and the slots 1310, 1312 of the front plate 1332 are both vertically (i.e. in the general direction of the slide motion) and horizontally staggered with respect to the slots 1350, 1352 of the back plate 1334. FIG. 13B illustrates the front plate 1332 and the back plate 1334 in the extended position. When the back plate 1334 is moved into the extended position, the slots 1310, 1312 of the front plate 1332 are primarily horizontally staggered. In the extended position, the vertical stagger may be partially or wholly removed by the housing segments being moved into the extended position.

[00119] As described with an embodiment of FIG. 1OA and FIG. 1OB, the slider assembly 1030 includes a biasing mechanism in the form of a spring 1080. The spring 1080 is shown to have a serpentine configuration, although alternative implementations may use torsional springs, combination springs, or other spring configurations. As an alternative or addition, more than one spring 1080 may be used. The spring 1080 may bias the front plate 1032 and the back plate 1034 into remaining in the extended or contracted positions, as described with an embodiment of FIG. 1OA and FIG. 1OB.

[00120] With regard to FIG. 13A and FIG. 13B, the interface surfaces between the respective front and back plates 1332, 1334 may include various anchors 1389 that serve to retain a spring 1380 of a particular configuration. In an embodiment, the spring 1380 is shaped to bias the two plates 1332, 1334 against moving out of either the contracted or extended position. Once, however, the two plates are moved out of either the extended or contracted position, the spring 1380 is structured to bias the plates 1332, 1334 to move into the other of the extended or contracted position. The particular configuration and pattern of the spring 1380 may vary, depending on desired properties, such as stiffness and durability.

[00121] With regard to embodiments such as shown in FIG. 13A-FIG. 13B, the front plate 1332 and/or back plate 1334 may be curved to facilitate a clam shell housing design and/or curvilinear sliding motion. As mentioned elsewhere, embodiments provide a slider assembly such as described above to enable a sliding motion amongst the housing segments that is arched, or otherwise includes a positive radius of curvature.

[00122] ALTERNATIVES

[00123] Curve/Non-Linear Motion

[00124] FIG. 14 illustrates a movement of the front housing segment 510 against the back housing segment 1450 along a path of motion that is continuously non-linear. In an embodiment, the path of motion P is shown by movement of a point 1411 on the top housing segment 1410, as the top housing segment moves against the bottom housing segment 1450. The reverse scenario of the bottom housing segment being moved is also possible in an alternative implementation. As the back surface 1415 of the front housing segment 1410 and the front surface 1455 of the back housing segment 1450 are contoured (e.g. in clam shell design), the integrated slider assembly enables the sliding motion between the two housing segments to be a smooth and rounded path of motion P₁ for at least some points on the top housing segment 1310. In one embodiment, the path of motion P is continuously arced, so that from start to finish, the motion is arced.

[00125] HARDWARE DIAGRAM

[00126] FIG. 15 is a hardware diagram of a device for use with any of the embodiments described herein. A device 1500 may correspond to any of the devices illustrated with preceding embodiments. The device 1500 may include memory resources 1510, one or more processors 1520, a display assembly 1530, and various user- interface features 1540, 1542. In one embodiment, at least some of the user-interface features 1540, 1542 (e.g. keyboard or keypad) may be separated so as to be in a different housing segment from the one or more processors 1520. A flex cable 1525 may be used to interconnect the separated input/output interfaces 1542 from the processors 1520 and/or other components. However, in other embodiments, any of the internal components and devices, including one of multiple processors, may be distributed between the two housing segments.

[00127] According to an embodiment, the display assembly 1530 is provided its own housing segment. The one or more processors are capable of generating or detecting input from soft-interface features that are provided with the display assembly 1530. The soft-user interface features may be provided as computer- generated features in connection with operation of the display assembly 1530, or alternatively, as fixed features. As mentioned with prior embodiments and/or soft-user interface features may operate with touch, contact or light sensors (e.g. capacitive sensors).

[00128] ADDITIONAL FUNCTIONALITY

[00129] Embodiments described herein may be configured to perform programmatic and automatic actions in response to detecting that the device is in either of the contracted or extended positions. For example, the processor(s) 1520 of the device 1500 may actuate on when in the extended position. With reference to an embodiment of FIG. 2A and FIG. 2B, the device may be triggered to perform additional programmatic functions when positioned in the second extended position. For example, the device may launch a camera application with exposure of a lens in the second extended position.

[00130] ALTERNATIVES [00131] While some embodiments described above provide for use of four couplings (e.g. combination of slot and securement feature), other embodiments may use more or fewer couplings. For example, only one coupling may be used to enable the slider assembly.

[00132] While numerous embodiments described above provide for the slider assembly to have two primary positions, one or more embodiments provide for the slider mechanism to be structured to be moveable into at least one other position. In one embodiment, the slider assembly 1030 may be used to position the device in any one of a first extended position, a contracted position, and a second extended position. Under one implementation, the housing segments 510, 550 (FIG. 5A) may be moved from the first extended position into the contracted position and then into the second extended position. In the second extended position, the back segment 550 (FIG. 5A) may include a front surface that becomes accessible for the user. As described with, for example, an embodiment of FIG. 5A and FIG. 5B, motion to the second extended position may be sliding and arched (positive radius of curvature). As another alternative, for example, the motion between the two housing segments to the extended position may be linear, while the motion to the first extended position is arched.

[00133] Although illustrative embodiments of the invention have been described in detail herein with reference to the accompanying drawings, it is to be understood that the invention is not limited to those precise embodiments. As such, many modifications and variations will be apparent to practitioners skilled in this art. Accordingly, it is intended that the scope of the invention be defined by the following claims and their equivalents. Furthermore, it is contemplated that a particular feature described either individually or as part of an embodiment can be combined with other individually described features, or parts of other embodiments, even if the other features and embodiments make no mentioned of the particular feature. This, the absence of describing combinations should not preclude the inventor from claiming rights to such combinations.

[00134] While embodiments described herein provide for the front housing segment to include display surfaces, capacitive input features, and a limited number of mechanical features, one or more embodiments may, as an addition or alternative to any of the embodiments described above, provide for a shell of the exterior front face to be moveable inward in order to enable the user to enter some forms of input. For example, the user may push the shell of the front exterior surface inward in order to enter selection input. U.S. Patent Application No. 11/849,133 filed August 31, 2007, entitled SOFT USER-INTERFACE FEATURE PROVIDED IN COMBINATION WITH PRESSABLE DIODISPLAY SURFACE; is hereby incorporated by reference in its entirety. The aforementioned application describes the use of a display surface that is moveable inward or otherwise pressable to cause actuation of a corresponding switch element. According to an embodiment described herein, the front exterior face may be constructed as described in the '133 application to move inward and actuate any one or more switch elements. The display surface of the front exterior surface may be used to provide, for example, soft-buttons or other features on the front exterior surface. The combination of such features and the moveable or pressable front exterior face may enable the soft- features to be used or feel like mechanical buttons. The display surface may alter the buttons or replace the buttons with display content.

[00135] U.S. Patent No. 11/840,916, filed August 17, 2007, entitled SENSOR-KEYPAD COMBINATION FOR MOBILE COMPUTING DEVICES AND APPLICATIONS THEREOF, is also hereby incorporated by reference. The aforementioned '916 application provides various examples of housing surfaces that can be moved inward.

[00136] Furthermore, variations to any of the embodiments described herein provide for use of capacitive sensors that detects characteristics of the user-interaction that include more than determining the position of contact. U.S. Patent Application No. 11/379,552, filed April 20, 2006, entitled KEYPAD AND SENSOR COMBINATION TO PROVIDE DETECTION REGION THAT OVERLAYS KEYS, describes the use of capacitive sensors that utilize motion, velocity and/or acceleration detection to interpret a contact or near- contact interaction by the user with the computing device. Likewise, with regard to any of the embodiments described herein, sensors may be used to interpret input from user interaction that includes contact or near-contact, as well as motion of finger movement (such as direction, gesture or path formed), and other characteristics of the interaction such as finger velocity and acceleration.

[00137] Although illustrative embodiments of the invention have been described in detail herein with reference to the accompanying drawings, it is to be understood that the invention is not limited to those precise embodiments. As such, many modifications and variations will be apparent to practitioners skilled in this art. Accordingly, it is intended that the scope of the invention be defined by the following claims and their equivalents. Furthermore, it is contemplated that a particular feature described either individually or as part of an embodiment can be combined with other individually described features, or parts of other embodiments, even if the other features and embodiments make no mentioned of the particular feature. Thus, the absence of describing combinations should not preclude the inventor from claiming rights to such combinations.

Claims

1. A mobile computing device comprising:

a front housing segment that includes a display surface on a front exterior face; and

a back housing segment that is slideably coupled to the front housing segment to move between an extended position and a contracted position, wherein the back housing segment includes a keypad provided on a surface that is exposed for use when the device is in the extended position;

wherein the front housing segment and the back housing segment are coupled so that a path of motion followed by one of the front housing segment or back housing segment when moving between the extended position and the contracted position is continuously arced.

2. The mobile computing device of Claim 1, wherein all of the front exterior face is smooth and seamless.

3. The mobile computing device of Claim 2, wherein substantially all, but not an entirety of the front exterior face is smooth and seamless.

4. The mobile computing device of Claim 3, wherein the front exterior face includes a set of one or more mechanical interface features provided on a designated region.

5. The mobile computing device of Claim 3, wherein the front exterior face includes only a single interface feature that protrudes from the exterior surface.

6. The mobile computing device of Claim 1, wherein the display surface of the front housing segment occupies an area on the front exterior face that occupies at least a substantial majority of an overall area of the front exterior face.

7. The mobile computing device of Claim 1, wherein the display surface of the front housing segment includes a length or a width that occupies at least a substantial majority of a corresponding overall width or length of the front exterior face.

8. The mobile computing device of Claim 1, wherein the front exterior face includes a plurality of soft-user interface features that are provided apart from the display surface.

9. The mobile computing device of Claim 8, wherein the display surface is rounded and convex on the first housing segment.

10. The mobile computing device of Claim 1, wherein the display surface is smooth and seamlessly provided on the front exterior face.

11. The mobile computing device of Claim 10, wherein the exterior face is rounded and convex.

12. The mobile computing device of Claim 10, wherein the front segment includes a touch-sensitive area that at least partially overlaps the display surface.

13. The mobile computing device of Claim 12, wherein the touch- sensitive area encompasses all of the display surface.

14. The mobile computing device of Claim 12, wherein the front segment houses a liquid crystal display (LCD) component that generates the display surface on the front exterior face.

15. The mobile computing device of Claim 12, wherein the front segment includes a translucent shell that extends over the LCD component to provide the display surface, and wherein one or more touch sensors are provided with or in operational vicinity of the translucent shell to provide the touch- sensitive area.

16. The mobile computing device of Claim 15, wherein the translucent shell is shaped to have a convex contour.

17. The mobile computing device of Claim 1, wherein the keypad is provided on a surface of the back housing segment that is recessed or contoured inward, wherein a depth of the recessed or contoured surface accommodates a thickness of the keypad.

18. The mobile computing device of Claim 17, wherein the keypad corresponds to a keyboard.

19. The mobile computing device of Claim 1, wherein the front housing segment includes a backside, and wherein a portion of the backside is exposed when the front and back housing segments are moved towards the extended position, and where the portion of the backside that is exposed is smooth.

20. A mobile computing device comprising:

a back housing segment that is slideably coupled to the front housing segment to move between an extended position and a contracted position, wherein the back housing segment includes a keypad provided on a surface that is exposed for use when the device is in the extended position; wherein substantially all of the front exterior face is smooth and seamless.

21. The computing device of Claim 20, wherein the display surface of the front housing segment occupies a majority of an overall area of a front exterior face of the front housing segment.

22. The computing device of Claim 20, wherein the front housing segment and the back housing segment are slideably coupled to move between the extended and contracted positions along a path of motion that is continuously arced.

23. A housing assembly for a computing device, the housing assembly comprising:

a front housing segment for a display surface on a front exterior face; and

a back housing segment that is slideably coupled to the front housing segment to move between an extended position and a contracted position, wherein the back housing segment is structured to provide a keypad provided on a surface that is exposed for use when the device is in the extended position;

24. A mobile computing device comprising:

a front housing segment having a front structure that is provided as part of an integrated layer of at least a portion of the front housing segment, the front structure including a first front slot and a first front securement feature;

a back housing segment having a rear structure that is provided as part of an integrated layer of at least a portion of the back housing segment, the back structure including a first back slot and a first back securement feature;

wherein the front structure and the back structure combine to form a slider assembly that includes (i) the first back securement feature being received and slideably engaged with the first front slot, and (ii) the first front securement feature being received and slideably engaged with the first back securement feature;

wherien the slider assembly formed by the front structure and the back structure enable the front housing segment and the back housing segment to move between an extended position and a contracted position.

25. The mobile computing device of Claim 24, wherein the front structure of the front housing segment is provided as part of the integrated layer that includes at least a portion of a back surface of the front housing segment that slides against the back housing segment.

26. The mobile computing device of Claim 24, wherein the back structure of the back housing segment has is provided as part of the integrated layer that includes at least a portion of a front surface of the back housing segment that slides against the back surface of the front housing segment.

27. The mobile computing device of Claim 24, wherein slider assembly enables the front housing segment and the back housing segment to move in an arc when moving between the extended position and the contracted position.

28. The mobile computing device of Claim 27, wherein the structure of at least one of the integrated layer of the front housing segment or of the back housing segment corresponds to a plate that is fixed and secured to the respective front housing segment or the back housing segment.

29. The mobile computing device of Claim 24, further comprising:

the front structure of the front housing segment including a second front slot and a second front securement feature;

the back structure of the back housing segment including a second back slot and a second back securement feature;

wherein the front structure and the back structure are positioned so that the second back securement feature is received and slideably engaged with the second front slot, and the second front securement feature is received and slideably engaged with the second back securement feature.

30. The mobile computing device of Claim 24, further comprising a biasing mechanism that is biased against the front housing segment being moved out of either the contracted position or the extended position.

31 The mobile computing device of Claim 30, wherein the biasing mechanism corresponds to a spring structure.

32. The mobile computing device of Claim 30, wherein the spring structure is bi-stable in that housing segments are biased into remaining in one of the extended or contracted positions, but not in between.

33. The mobile computing device of Claim 31, wherein the spring structure includes a plurality of bends and a variable thickness in its cross-section.

34. The mobile computing device of Claim 30 wherein the biasing mechanism includes one or more magnets positioned to attract the securement features into remaining in either of the contracted or extended positions.

35. A slider assembly for a computing device housing, the slider housing comprising:

a front plate including at least a first front slot and at least a first front securement feature that extends from the front plate;

a back plate is slideably coupled to the front plate by including (i) at least a first back slot that receives and is slideably engaged with the first front securement features of the front plate, and (ii) at least a first back securement feature that is received and slideably engaged with the first front slot of the front plate;

wherein the front plate is structured to integrate within a front housing segment of the computing device, and the back plate is structured to integrate within a back housing segment of the computing device, and wherein the front plate and the back plate are slideably coupled to one to another move between an extended position and a contracted position.

36. The slider assembly of Claim 35, wherein each of the front plate and the back plate is integrated into the corresponding front or back housing segment by being either secured into or unitarily formed with that corresponding front or back housing segment.

37. The slider assembly of claim 35, further comprising a biasing mechanism that is coupled to the front plate and the back plate, wherein the mechanism is structured to bias against the front plate and the back plate being moved out of either the contracted position or the extended position.

38. The slider assembly of Claim 37, wherein the biasing mechanism corresponds to one or more springs, and wherein each of the one or more springs is coupled to the front plate and the back plate.

39. The slider assembly of Claim 37, wherein the biasing mechanism corresponds to an arrangement of magnets, including a magnet provided on each of the front plate and the back plate, wherein the arrangement of magnets provides magnetic attraction to bias the front plate and the back plate into remaining or moving into the contracted position and the extended position, and against moving in between the contracted or extended position.

40. The slider assembly of Claim 35,

wherein the front plate includes at least a second front slot and at least a second front securement feature that extends from the front plate;

wherein the back plate is slideably coupled to the front plate by including (i) at least a second back slot that receives and is slideably engaged with the second front securement features of the front plate, and (ii) at least a second back securement feature that is received and slideably engaged with the second front slot of the front plate.

41. A housing assembly for a computing device, the housing comprising:

a front housing segment; a back housing segment;

a slider assembly that includes:

wherein the front plate is structured to integrate within the front housing segment, and the back plate is structured to integrate within the back housing of the back housing segment, so that the front housing segment and the back housing segment are slideably coupled to one another by the front plate and the back plate to move between at least an extended position and a contracted position.

42. The housing assembly of Claim 41, wherein the front plate is secured into the front housing segment to extend at or adjacent to a back surface of the front housing segment, and wherein the back plate is secured into the back housing segment to extend at or adjacent to a front surface of the back housing segment.

43. The housing assembly of Claim 41, further comprising a biasing mechanism that is coupled to the front plate and the back plate, wherein the biasing mechanism is structured to bias against the front plate and the back plate being moved out of either the contracted position or the extended position.

44. The housing assembly of Claim 43, wherein the biasing mechanism includes one of (i) one or more springs, or (ii) an arrangement of magnets.

45. The housing of Claim 41, wherein the front housing segment and the back housing segment are slideably coupled to move along an arc when moving between the extended position and the contracted position.