Abstract: An electronic device includes a chassis, a cooler, and a fan assembly. The chassis includes a bottom plate and defines an air inlet and an air outlet. The cooler is secured to the bottom plate. The fan assembly is secured to the bottom plate and defines a case and a roller received in the case. The roller includes a shaft and a number of blades secured to the shaft. An area of the air inlet is greater than an area of the air outlet. The fan assembly is capable of drawing in air into the roller. The air flows into the air inlet along a first direction. The air flows out of the air outlet along a second direction. The first direction is substantially parallel to the second direction. The first direction is substantially perpendicular to the shaft.

Abstract: A hand-held device enclosure is disclosed. The hand-held device includes a front cover, a back cover, and a frame. The frame defines a plurality of honeycomb holes therein, is configured for fixing a printed circuit board, and is interposed between the front cover and the back cover. The front cover, the back cover, and the frame are connected using screws. The enclosure has good structural strength and is light because of the honeycomb structure.

Abstract: A hand-held device is provided. The hand-held device includes a rotary wheel, a plurality of switches, a plurality of character regions corresponding to the switches, and a controller. The rotary wheel has a plurality of positioning inputs. Each character region comprises a plurality of icons corresponding to the positioning inputs, wherein each icon comprises a character. The controller is responsive to operations on the rotary wheel and the switch, and input a corresponding character. The above-mentioned rotary wheel can replace keyboard in the hand-held device.

Abstract: A hand-held device is provided. The hand-held device includes a rotary wheel, a switch, a character region, a display, and a controller. The rotary wheel has a plurality of positioning inputs. The character region includes a plurality of icons corresponding to the positioning inputs. Each icon includes a plurality of characters. The display defines a character display area. According to a positioning input the rotary wheel locates, the characters of the corresponding icon are displayed in the character display area of the display. According to a count the switch is operated, the corresponding character of the characters displayed in the character display area is inputted. The above-mentioned rotary wheel can replace keyboard in the hand-held device.

Abstract: A hand-held device is provided. The hand-held device includes a rotary wheel, a switch, a character region, and a controller. The rotary wheel has a plurality of positioning inputs. The character region includes a plurality of icons corresponding to the positioning inputs. Each icon includes a character. The controller is responsive to operation on the rotary wheel and the switch, and inputs a corresponding character. The above-mentioned rotary wheel can replace keyboard in the hand-held device.

Abstract: A navigational device is disclosed. The navigational device includes a rotatable wheel. The rotatable wheel is attached in a wheel frame with a first rotatable member. The wheel frame is attached in a chassis with a second rotatable member. The navigational device further comprises a switch. The rotatable wheel pushes the wheel frame to rotate while the rotatable wheel is pressed down. The switch is closed due to a pressure by the wheel frame or the chassis. The rotatable wheel rotates with the wheel frame while being pressing down. The movement is stable without shaking.

Abstract: A hand-held device is provided. The hand-held device includes a rotary wheel, a first switch, a second switch, an encoder, a memory, and a controller. The rotary wheel has a plurality of positioning inputs. The encoder is responsive to operations on the rotary wheel and outputs positioning codes. The memory stores a plurality of input modes, wherein each input mode includes characters corresponding to positioning codes. The controller obtains an input mode from the memory, and shifts a current input mode to the input mode obtained in responsive to an input from the first switch. The controller inputs a character of the current input mode according to a positioning code that the encoder outputs in response to an input from the second switch. The above-mentioned rotary wheel can replace keyboard in the hand-held device.

Abstract: A hand-held device is provided. The hand-held device includes a rotary wheel, a switch, a character region, and a controller. The rotary wheel has a plurality of positioning inputs. The character region includes a plurality of icon areas corresponding to the positioning inputs. Each icon area includes a plurality of characters. According to a positioning input the rotary wheel locates, the controller selects characters of the corresponding icon area. According to a count the switch is operated, the controller inputs a corresponding character of the characters selected. The above-mentioned rotary wheel can replace keyboard in the hand-held device.

Abstract: An electronic device is disclosed. The electronic device includes a processing unit, a display and a touch-sensitive apparatus. The touch-sensitive apparatus includes a plurality of touch-sensitive units. The display defines a symbol selection area for displaying a plurality of symbols corresponding to the touch-sensitive units. The processing unit receives a touch operation on a touch-sensitive unit, and inputs the corresponding symbol displayed in the symbol selection area. Inputting symbols in the electronic device is convenient while avoiding dirtying or damaging the display.

Abstract: An apparatus for character input is disclosed. The apparatus includes a keypad and a processing unit. The keypad comprises a plurality of combo keys. Each combo key includes a main contact and at least one sub-contact adjacent to the main contact, the main contact and the sub-contact respectively have at least one icon representing a character. The processing unit receives a press operation on the keypad and inputting a corresponding character. The keypad of the apparatus is compact in size while character input on the keypad is conveniently.

Abstract: An electronic device is disclosed. The electronic device includes a processing unit, a display and a touch-sensitive apparatus. The touch-sensitive apparatus includes a plurality of touch-sensitive units. Each touch-sensitive unit is corresponding to a symbol. The processing unit receives a stroke operation on a touch-sensitive unit, and displays the corresponding symbol on the display. Entering symbols in the electronic device is convenient while avoiding dirtying or damaging the display.

Abstract: A multi-interface storage device includes: a storage unit for storing data; a first interface and a second interface for electrically connecting to an external data processing system; a data control unit configured for conducting a connection between the first interface and the storage unit, in order that the external data processing system processes the data in the storage unit if the first interface is electrically connected to the external data processing system; the data control unit configured for conducting a connection between the second interface and the storage unit, in order to drive the external data processing system to perform a function of displaying a personal favorite data processing system environment if the second interface is electrically connected to the external data processing system, and a processing unit, connected to an interior control interface; wherein the data control unit is configured for conducting a connection between the interior control interface and the storage unit, in ord

Abstract: A method of providing a protective barrier between a plastic casing and a rubber layer molded over the plastic casing. The protective barrier is applied to the plastic casing and then the rubber layer molded onto the plastic casing over the protective barrier. The protective barrier prevents the rubber layer from reacting with the underlying plastic casing. In one embodiment, the plastic casing comprises a polycarbonate resin and the protective barrier comprises a polyurethane coating.