# Patent

## Title
Portable electronic device with upper housing and cover plate therefor

## Abstract

A portable electronic device includes a lower housing and an upper housing coupled to the lower housing and slidable relative thereto between closed and open positions. The upper housing includes a cover plate affixed to a rear of the upper housing. The cover plate may conceal at least one electrical connector housed in the upper housing, and may be removable to allow access to at least a portion of the at least one electrical connector. The cover plate may be configured to maintain the lower and upper housings in a generally uniform spaced apart relationship as the upper housing moves between the closed and open positions.

## Background
CROSS-REFERENCE TO RELATED APPLICATION
This application claims priority to U.S. Provisional Application No. 61/304,603 filed on Feb. 15, 2010 and entitled PORTABLE ELECTRONIC DEVICE WITH UPPER HOUSING AND COVER PLATE THEREFOR, the entire contents of which are hereby incorporated herein by reference.


FIELD OF TECHNOLOGY
The present disclosure relates to portable electronic devices, and in particular to portable electronic devices having an upper housing slidable relative to a lower housing.
BACKGROUND
Electronic devices, including portable electronic devices, have gained widespread use and may provide a variety of functions including, for example, telephonic, electronic text messaging and other personal information manager (PIM) application functions. Portable electronic devices can include several types of devices including mobile stations such as simple cellular phones, smart phones, Personal Digital Assistants (PDAs), tablets and laptop computers.
Devices such as PDAs or smart phones are generally intended for handheld use and ease of portability. Smaller devices are generally desirable for portability. Smaller portable electronic devices are available in various constructions, including unibody designs, “clamshell” or “flip-phone” styles and “slider” phones.



BRIEF DESCRIPTION OF THE DRAWINGS
Embodiments of the present disclosure will now be described, by way of example only, with reference to the attached Figures, wherein:
FIG. 1 is a simplified block diagram of components including internal components of a portable electronic device according to one embodiment;
FIG. 2 is a first side view of a portable electronic device according to one embodiment shown in a closed position;
FIG. 3 is a front view of the portable electronic device of FIG. 2;
FIG. 4 is a second side view of the portable electronic device of FIG. 2;
FIG. 5 is a back view of the portable electronic device of FIG. 2;
FIG. 6 is a first side view of the portable electronic device of FIG. 2 shown in an open position;
FIG. 7 is a front view of the portable electronic device of FIG. 6;
FIG. 8 is a second side view of the portable electronic device of FIG. 6;
FIG. 9 is a back view of the portable electronic device of FIG. 6;
FIG. 10 is a perspective view of the portable electronic device of FIG. 2;
FIG. 11 is a perspective view of the portable electronic device of FIG. 6;
FIG. 12 is a back perspective view of an upper housing of the portable electronic device;
FIG. 13 is a back perspective view of a portion of the upper housing of FIG. 12 with a cover plate separated therefrom;
FIG. 14 is a back perspective exploded view of various components of the upper housing;
FIG. 15 is a front perspective exploded view of various components of the upper housing;
FIG. 16 is a front perspective exploded view of a portion of the upper housing;
FIG. 17 is a front, side partial perspective view of the portable electronic device in the open position;
FIG. 18 is a front, side partial perspective view of the portable electronic device in the closed position; and
FIG. 19 is a sectional, perspective view of the portable electronic device of FIG. 18.



DETAILED DESCRIPTION
The following describes a portable electronic device that includes a lower housing and an upper housing slidable relative to the lower housing between closed and open positions. The upper housing includes a cover plate.
It will be appreciated that for simplicity and clarity of illustration, where considered appropriate, reference numerals may be repeated among the figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the example embodiments described herein. However, it will be understood by those of ordinary skill in the art that the example embodiments described herein may be practiced without these specific details. In other instances, well-known methods, procedures and components have not been described in detail so as not to obscure the example embodiments described herein. Also, the description is not to be considered as limited to the scope of the example embodiments described herein.
FIG. 1 shows a simplified block diagram of components including internal components of a portable electronic device 100 according to one embodiment. FIG. 1 is exemplary only, and those persons skilled in the art will appreciate the additional elements and modifications necessary to make the portable electronic device 100 work in particular network environments.
The portable electronic device 100 includes multiple components such as a processor 102 that controls the operations of the portable electronic device 100. Communication functions, including data communications, voice communications, or both can be performed through a communication subsystem 104. Data received by the portable electronic device 100 is decompressed and decrypted by a decoder 106. The communication subsystem 104 receives messages from and sends messages to a wireless network 150.
The wireless network 150 can be any type of wireless network, including, but not limited to, data-centric wireless networks, voice-centric wireless networks, and dual-mode networks that support both voice and data communications over the same physical base stations.
The portable electronic device 100 can be a battery-powered device and as shown includes a battery interface 142 for receiving one or more rechargeable batteries 144.
The processor 102 also interacts with additional subsystems such as a Random Access Memory (RAM) 108, a flash memory 110, a display 112 with a touch-sensitive overlay 114 connected to an electronic controller 116 that together comprise a touch-sensitive display 118, an actuator assembly 120, one or more optional force sensors 122, an auxiliary input/output (I/O) subsystem 124, a data port 126, a speaker 128, a microphone 130, short-range communications 132 and other device subsystems 134.
User-interaction with the graphical user interface can be performed through the touch-sensitive overlay 114. The processor 102 interacts with the touch-sensitive overlay 114 via the electronic controller 116. Information, such as text, characters, symbols, images, icons, and other items that can be displayed or rendered on a portable electronic device, is displayed on the touch-sensitive display 118 via the processor 102.
The processor 102 can also interact with an accelerometer 136 as shown in FIG. 1. The accelerometer 136 can include a cantilever beam with a proof mass and suitable deflection sensing circuitry. The accelerometer 136 can be utilized for detecting direction of gravitational forces or gravity-induced reaction forces.
To identify a subscriber for network access according to the present embodiment, the portable electronic device 100 can use a Subscriber Identity Module or a Removable User Identity Module (SIM/RUIM) card 138 inserted into a SIM/RUIM interface 140 for communication with a network such as the wireless network 150.
Alternatively, user identification information can be programmed into the flash memory 110.
The portable electronic device 100 also includes an operating system 146 and software components 148 that are executed by the processor 102 and which can be stored in a persistent store such as the flash memory 110. Additional applications can be loaded onto the portable electronic device 100 through the wireless network 150, the auxiliary I/O subsystem 124, the data port 126, the short-range communications subsystem 132, or any other suitable device subsystem 134.
In use, a received signal such as a text message, an e-mail message, or web page download is processed by the communication subsystem 104 and input to the processor 102. The processor 102 then processes the received signal for output to the display 112 or alternatively to the auxiliary I/O subsystem 124. A subscriber can also compose data items, such as e-mail messages, for example, which can be transmitted over the wireless network 150 through the communication subsystem 104.
For voice communications, the overall operation of the portable electronic device 100 is similar. The speaker 128 outputs audible information converted from electrical signals, and the microphone 130 converts audible information into electrical signals for processing.
Turning now to FIGS. 2 to 11, illustrated generally therein is a portable electronic device 200 according to one example. The portable electronic device 200 is commonly referred to as a “slider” style device and includes an upper housing 202 (or sliding portion) and a rear, lower housing 204 (or base portion). The upper housing 202 and lower housing 204 are coupled together, and the upper housing 202 is slidable relative to the lower housing 204 in a first linear direction between a closed position (e.g., as shown in FIG. 2) and an open position (e.g., as shown in FIG. 6).
In some examples, and as shown, the portable electronic device 200 is generally taller than it is wide. In such examples, as the portable electronic device 200 moves between the closed and open positions, the upper housing 202 is moving relative to the lower housing 204 generally parallel to a longitudinal axis of the portable electronic device 200.
As shown, the upper housing 202 generally includes a display 206, which can be an LCD display and which can have touch screen capabilities. In some examples, the display 206 could be the same as or similar to the display 118 as generally described above.
Optionally, in some examples, the display 206 can be a touch-sensitive display. The touch-sensitive display can be a capacitive touch-sensitive display, for example, and a user's touch on the touch-sensitive display can be determined by determining an X and Y location of the touch, with the X location determined by a signal generated as a result of capacitive coupling with a touch sensor layer and the Y location determined by the signal generated as a result of capacitive coupling with another touch sensor layer. Each of the touch-sensor layers provides a signal to a controller that represents the respective X and Y touch location values. Thus, a feature such as a virtual button or other feature displayed on the touch-sensitive display can be selected by a mapping of the touch location to a feature on the touch-sensitive display.
As shown, each of the upper housing 202 and lower housing 204 can include one or more input apparatus, such as navigation keys or buttons, a physical or virtual keyboard, a trackpad, trackball, multimedia keys, etc.
The upper housing 202 as shown includes an auxiliary input device 212 that responds to user interaction, and which can be used for navigating around the display 206, to select objects on the display 206, or for other purposes. The auxiliary input device 212 can act as a cursor navigational tool and can be exteriorly located upon a front 203 of the upper housing 202. The front location of the auxiliary input device 212 is advantageous because it makes the tool easily thumb-actuatable when the device is in both the open and closed positions.
Implementation of the auxiliary input device 212 can provide for relatively fine navigation control, for example, as compared with the touch sense capabilities of the display 206. Thus, for example, when using the touch-sensitive display 206 to navigate a website, the user can quickly and easily switch thumb position to utilize the optically based user input device 212 to scroll around the website and access relatively small links.
In some examples, the auxiliary input device 212 can consist of an optically based user input device, which can be referred to as a “trackpad”. The optically based user input device can be utilized to instruct two-dimensional screen cursor movement in substantially any direction, as well as act as an actuator when the optically based user input device is depressed like a button. Examples of handheld electronic communication devices with optically based user input devices are taught, for example, in U.S. Publication No. 20090195499, the entirety of which is incorporated herein by reference.
In some other examples, the auxiliary input device 212 can be a mechanical device that responds to user interaction (e.g., a trackball).
The display 206 and the auxiliary input device 212 are generally disposed on the front 203 of the upper housing 202 and exposed for user accessibility when the portable electronic device 200 is in either of the open or closed positions.
The upper housing 202 can also include other input devices, such as a dedicated phone application button, a dedicated “disconnect call” button, a home screen button, etc. In various embodiments, these input devices include optical sensors, mechanical buttons, or both.
For example, as shown, the upper housing 202 can include a navigation row 240 including a plurality of navigation keys 234 adjacent to the auxiliary input device 212. The portable electronic device 200 can be configured to send and receive voice communications such as mobile telephone calls. To facilitate telephone calls, two call keys 230, 238 (“outer keys”) are provided in the navigation row 240 at the outer ends of the navigation row 240. One of the two call keys is a call initiation key 230 and the other is a call termination key 238. The navigation row 240 also includes another pair of keys 232, 236 (“flanking keys”) that are located immediately adjacent to the auxiliary input device 212. One is a menu call-up key 232 and the other is an escape or back key 236. The menu call-up key 232 can be used to bring up a menu on the display 206 and the escape key 236 can be used to return to the previous screen or previous menu selection. The functions of the call keys and the menu keys may, of course, be provided by buttons that are located elsewhere on the device, with different functions assigned to the outer keys and the flanking keys.
Turning now to the lower housing 204, the lower housing 204 can include various buttons and other controls, such as buttons 208 and 210, and which could be used for navigation, to control volume or for other purposes.
The lower housing 204 could also include one or more application buttons 211 that can be used to automatically launch a particular application on the portable electronic device 200 (e.g., a camera application, a phone application, etc.). In some embodiments, the button 211 can be configurable by a user (e.g., the user can be able to select the particular application launched by the button 211).
As shown in FIGS. 2 and 6, the lower housing 204 could also include one or more input or output ports (e.g., I/O ports), such as a microUSB port 214 (and which could be similar to or the same as data port 126). In some examples, the port 214 can be used for data communication with the portable electronic device 200, for charging of a battery (not shown, but which could for example be battery 144) on the device 200 or for both.
As shown, the lower housing 204 can also include a battery cover 216 for covering the battery (not shown). In some embodiments, the battery cover 216 can be removable. In other embodiments, the battery cover 216 can be permanently fixed to the device.
In some embodiments, the lower housing 204 can also include an audio jack 217. The audio jack 217 can be used to couple the portable electronic device 200 to a speaker, a microphone, or both, for example for use in voice communication.
Turning now to FIGS. 6 to 9 and 11, as shown when the portable electronic device 200 is in the open position, a keypad 220 is exposed on a lower portion 218 of the lower housing 204. The keypad 220 generally includes a plurality of alphanumeric keys 222, which can be positioned in a plurality of rows and columns. In some embodiments, the keys 222 can represent the alphabet and can be arranged with a standard keyboard layout (e.g., QWERTY, QWERTZ, DVORAK, etc.).
As shown in FIGS. 2 to 5 and 10, when the portable electronic device 200 is in the closed position, the keypad 220 is covered by the upper housing 202. This can be beneficial as it can protect the keypad 220 when not in use, and can also inhibit keys from being pressed inadvertently when the user is carrying the portable electronic device 200 (e.g., in a pocket). However, in some cases (e.g., when the display 206 is a touch-sensitive display) the user can perform functions on the portable electronic device 200 while closed by interacting with the display 206, and/or by interacting with the buttons 208, 210, 211, the keys 230, 232, 236, 238, and the auxiliary input device 212. As mentioned above, the display 206 and the auxiliary input device 212 are generally disposed on the front 203 of the upper housing 202 and exposed for user accessibility when the portable electronic device 200 is in either of the open or closed positions.
When the portable electronic device 200 is in the open position (as shown in FIGS. 6 to 9 and 11), the keypad 220 is exposed for user accessibility. Furthermore, auxiliary input device 212 is disposed near a bottom side 205 of the upper housing 202 so that, when in the open position (as shown in FIGS. 6 to 9), the auxiliary input device 212 is arranged between the display 206 and the keypad 220. The arrangement of the auxiliary input device 212 between the display 206 and the keypad 220 can reduce interference during keyboarding and does not block the user's view of the display 206 during use, and provides for relatively short distances for a user's thumb to travel back and forth between the display 206 (if touch-sensitive), the auxiliary input device 212 and the keypad 220 during use.
Reference is now made to FIG. 12, which illustrates an inner or rear side 248 of the upper housing 202. A cover plate 250 is affixed or mounted to the rear side 248 along the bottom side 205, extending generally between lateral sides 252, 254 of the upper housing 202. Also shown is a portion 264 of a primary flex connector (described below), which provides electrical connectivity between the upper housing 202 and the lower housing 204.
Referring to FIG. 13, fasteners 256 can be used to affix the cover plate 250 to the upper housing 202. Of course other means of affixing the cover plate 250 are possible. For example, the cover plate 250 can be provided with tabs (not shown) and corresponding receiving slots (not shown) can be provided in the upper housing 202, the tabs and slots enabling a “snap-fit” arrangement.
The cover plate 250 can be configured to conceal and protect one or more electrical connections housed in the upper housing 202 from damage during use, and from contaminants such as dirt, moisture and other ingress. As shown, a flex connector 258 associated with the display 206, a flex connector 260 associated with the navigation keys 230, 232, 236, 238, and a flex connector 262 associated with the auxiliary input device 212 can be arranged directly underneath the cover plate 250. Each of the secondary flex connectors 258, 260, 262 are operably connected to the primary flex connector (described below) providing electrical connectivity between the upper housing 202 and the lower housing 204. The cover plate 250 also provides ergonomic advantages, as it conceals the flex connectors from view, providing a streamlined look to the device 200.
A primary flex connector 268 is shown in FIG. 14. The primary flex connector 268 provides electrical connectivity between the upper housing 202 and the lower housing 204, and can be referred to as a “dynamic” flex connector.
In some examples, the cover plate 250 can be removable after assembly of the portable electronic device 200 to provide access to the flex connectors 258, 260, 262, 268 and other components, either for repairs or troubleshooting.
Referring to FIGS. 12, 13 and 14, the primary flex connector 268 includes the portion 264 that is arranged externally of the upper housing 202 for connection to the lower housing 204. The primary flex connector 268 also includes first and second flanking portions 270, 272. The first flanking portion 270 is arranged between the auxiliary input device 212 and the lateral side 252. The second flanking portion 272 is arranged between the auxiliary input device 212 and the lateral side 254. The first flanking portion 270 includes a connecting segment 274 for connection to the flex connector 262, and a connecting segment 276 for connection to the flex connector 260. The second flanking portion 272 includes a connecting segment 278 for connection to the flex connector 258.
Referring to FIG. 15, and with reference back to FIG. 12, in some examples the upper housing 202 includes a lens 280, the display 206, a slide housing 282, a slide plate 284, and a guide base 288. As shown, the guide base 288 can include c-channel structures that allow the guide base 288 to slide relative to the slide plate 284. The guide base 288 is affixed to the lower housing 204 (not shown) enabling the upper housing 202 to slide relative thereto.
As shown best in FIG. 16, an interior region 290 of the cover plate 250 can be arranged underneath and in alignment with the auxiliary input device 212 and provides a backing structure to support the auxiliary input device 212 for examples where the auxiliary input device 212 includes actuator functionality and can be depressed like a button.
As shown in FIG. 13, the cover plate 250 can include spacing elements 266 disposed on opposing lateral sides of the cover plate 250. The spacing elements 266 engage the lower housing 204 and serve as gap control features for maintaining a generally uniform gap between the upper housing 202 and the lower housing 204 as the upper housing 202 slides between the closed and open positions, as shown in FIGS. 17, 18 and 19. The gap provided by the spacing elements 266 effectively accommodates the keypad, which can have a height dimension, preventing the upper portion 202 from rubbing against the keypad 220 as the upper housing 202 slides between the closed and open positions. The spacing elements 266 can be configured to bear against and follow a sacrificial wearing surface 292 that is provided on the lower housing 204, disposed about a periphery of the keypad 220. The wearing surface 292 can be generally complementary in shape to the spacing elements 266.
While the above description provides examples of one or more processes or apparatuses, it will be appreciated that other processes or apparatuses may be within the scope of the accompanying claims.

## Claims

1. A portable electronic device, comprising:
a lower housing; and
an upper housing coupled to the lower housing and slidable relative thereto between a closed position and an open position, the upper housing including a removable cover plate affixed to a rear of the upper housing along a bottom side of the upper housing generally between first and second lateral sides of the upper housing,
wherein the removable cover plate is removable to allow access to at least a portion of at least one electrical connector,
wherein the removable cover plate is configured to maintain the lower and upper housings in a generally uniform spaced apart relationship as the upper housing moves between the closed and open positions,
and wherein substantially the entirety of the removable cover plate is adjacent the lower housing in the closed and open positions.

2. The device of claim 1, wherein the removable cover plate conceals the at least one electrical connector housed in the upper housing.

3. The device of claim 2, wherein the at least one electrical connector comprises a primary flex connector configured to electrically connect the lower and upper housings.

4. The device of claim 3 further including a display, wherein the at least one electrical connector comprises at least one secondary flex connector configured to electrically connect the primary flex connector to the display.

5. The device of claim 3, wherein the upper housing comprises an auxiliary input device disposed on a front of the upper housing, and the at least one electrical connector comprises at least one secondary flex connector configured to electrically connect the primary flex connector to the auxiliary input device.

6. The device of claim 3, wherein the upper housing comprises a plurality of navigation keys disposed on a front of the upper housing, and the at least one electrical connector comprises at least one secondary flex connector configured to electrically connect the primary flex connector to the plurality of navigation keys.

7. The device of claim 1, wherein the removable cover plate comprises spacing elements configured to engage the lower housing.

8. The device of claim 7, wherein the spacing elements are disposed on opposing sides of the removable cover plate and generally adjacent to the first and second lateral sides of the upper housing.

9. The device of claim 7, wherein the lower housing comprises a sacrificial wearing surface, and the spacing elements are configured to bear against and follow the sacrificial wearing surface as the upper housing moves between the closed and open positions.

10. The device of claim 9, wherein the device further includes a keypad, and the sacrificial wearing surface is disposed generally about a periphery of the keypad.

11. The device of claim 9, wherein the sacrificial wearing surface is generally complementary in shape to the spacing elements.

12. The device of claim 1, wherein the upper housing comprises an auxiliary input device disposed on a front of the upper housing.

13. The device of claim 12 further including a display on the upper housing and a keypad on the lower housing, wherein the auxiliary input device is disposed generally between the display and the bottom side of the upper housing so that, when in the open position, the auxiliary input device is arranged generally between the display and the keypad.

14. The device of claim 12, wherein the removable cover plate comprises an interior region arranged generally underneath and in alignment with the auxiliary input device to support the auxiliary input device.

15. The device of claim 12, wherein the display comprises a touch-sensitive display.

16. The device of claim 12, wherein the auxiliary input device comprises an optically based user input device.

17. A portable electronic device, comprising:
a lower housing; and
an upper housing coupled to the lower housing and slidable relative thereto between closed and open positions, the upper housing including:
a display disposed on a front of the upper housing generally between first and second lateral sides;
an auxiliary input device on the front of the upper housing;
a plurality of navigation keys disposed on the front generally between the display and a bottom side of the upper housing;
at least one flex connector configured to electrically connect the lower housing to the display, the auxiliary input device and the plurality of navigation keys; and

a removable cover plate affixed to a rear of the upper housing along a bottom side of the upper housing, and concealing the at least one flex connector, wherein the removable cover plate is removable to allow access to the at least one flex connector;
wherein the removable cover plate is configured to engage the lower housing to maintain the lower and upper housings in a generally uniform spaced apart relationship as the upper housing moves between the closed and open positions,
and wherein substantially the entirety of the removable cover plate is adjacent the lower housing in the closed and open positions.

18. A portable electronic device, comprising:
a lower housing including:
a keypad; and
a sacrificial wearing surface disposed generally about a periphery of the keypad; and
an upper housing coupled to the lower housing and slidable relative thereto between a closed position in which the keypad is covered by the upper housing and an open position in which the keypad is exposed for user accessibility, the upper housing including:
a removable cover plate affixed to a rear of the upper housing along a bottom side of the upper housing, the cover plate concealing at least one electrical connector housed in the upper housing, the removable cover plate being removable to allow access to the at least one electrical connector, the removable cover plate including at least one spacing element configured to bear against and follow the sacrificial wearing surface of the lower housing to maintain the lower and upper housings in a generally uniform spaced apart relationship as the upper housing moves between the closed and open positions, substantially the entirety of the removable cover plate being adjacent the lower housing in the closed and open positions.