Abstract: A key structure in an electronic product includes a housing. The key structure includes a pressing portion, a printed circuit board (PCB), a key, and a sensor. The key and the sensor are both located on the PCB and electronically connected with each other. When the pressing portion is pressed, the key structure acts as a mechanical key. When the pressing portion is simply touched, the key structure acts as a touch key.

Abstract: An electronic reader device with a physical control disposed on a surface of the device housing. The physical control is operable to initiate a first function. A display disposed on the surface of the housing is operable to show a virtual control that initiates a second function. A sensor detects a drag operation moving the virtual control to a position on a border of the display adjacent to the physical control. A processor associates the second function with the physical control in response to the drag operation and performs the second function upon activation of the physical control.

Abstract: An electronic reader device with a physical control disposed on a surface of the device housing. The physical control is operable to initiate a first function. A display disposed on the surface of the housing is operable to show a virtual control that initiates a second function. A sensor detects a drag operation moving the virtual control to a position on a border of the display adjacent to the physical control. A processor associates the second function with the physical control in response to the drag operation and performs the second function upon activation of the physical control.

Abstract: An electronic device includes a pre-charging circuit and a battery. The pre-charging circuit is electrically connected to an external power supply and continually charges the battery of the electronic device. The electronic device further includes a fast charging circuit which includes a switch, a comparator and a NOR gate. The switch is electrically connected between the external power supply and the battery and the comparator is electrically connected to the battery. The NOR gate is electrically connected to the pre-charging circuit, the comparator, and the switch, and outputs signals to control the switch according to the comparison against a reference voltage and the signal outputted by the pre-charging circuit. The electronic device uses the pre-charging circuit and the fast charging circuit to quickly charge the battery of the electronic device when the battery is low, which shortens the charging time.

Abstract: A portable device includes a main body and an antenna mounted on the main body. The main body includes a printed circuit board (PCB). A first guide pole and a second guide pole are configured on the PCB. The antenna includes a first conductor portion, a second conductor portion and an insulated portion. The first conductor portion includes a first connecting end electrically connected to the PCB via the first guide pole. The first connecting end acts as a feed portion of the antenna. The second conductor portion is disposed between the first conductor portion and the PCB and includes a second connecting end electrically connected to the PCB via the second guide pole. The insulated portion is sandwiched between the first conductor portion and the second conductor portion to insulate the first conductor portion from the second conductor portion.

Abstract: An electronic reader device with a physical control disposed on a surface of the device housing. The physical control is operable to initiate a first function. A display disposed on the surface of the housing is operable to show a virtual control that initiates a second function. A sensor detects a drag operation moving the virtual control to a position on a border of the display adjacent to the physical control. A processor associates the second function with the physical control in response to the drag operation and performs the second function upon activation of the physical control.

Abstract: A portable device includes a main body and an antenna mounted on the main body. The main body includes a printed circuit board (PCB). A first guide pole and a second guide pole are configured on the PCB. The antenna includes a first conductor portion, a second conductor portion and an insulated portion. The first conductor portion includes a first connecting end electrically connected to the PCB via the first guide pole. The first connecting end acts as a feed portion of the antenna. The second conductor portion is disposed between the first conductor portion and the PCB and includes a second connecting end electrically connected to the PCB via the second guide pole. The insulated portion is sandwiched between the first conductor portion and the second conductor portion to insulate the first conductor portion from the second conductor portion.

Abstract: An electronic reader device with a physical control disposed on a surface of the device housing. The physical control is operable to initiate a first function. A display disposed on the surface of the housing is operable to show a virtual control that initiates a second function. A sensor detects a drag operation moving the virtual control to a position on a border of the display adjacent to the physical control. A processor associates the second function with the physical control in response to the drag operation and performs the second function upon activation of the physical control.

Abstract: An access point (AP) (20A) for automatically switching channels includes a transceiving module (201), a channel quality evaluation module (207) and a channel switching module (209). The transceiving module is provided for communicating with another AP (20B). The channel quality evaluation module is provided for evaluating quality of the communication channels between the APs, generating an evaluation result comprising communication channels with different transmission qualities, and selecting a channel with best quality as communication channel between the APs. The channel switching module is provided for selecting a channel with best quality and switching the current communication channel to the channel with best quality. A method for automatically switching channels applied between two APs is also provided in the present invention to avoid interferences appearing in the signal transmission process without manual operation.