Abstract: An electronic device, and a power supplying method and a wireless power supplying system thereof. The electronic device includes a wired electric power receiving module, a wireless electric power receiving module and a switch. The wired electric power receiving module is connected to an external power supply by wired transmission. The wireless electric power receiving module receives the wireless electric power from an external wireless electric power transmitting device. The switch is coupled to the wired electric power receiving module and the wireless electric power receiving module and is used to switch between the wired electric power receiving module and the wireless electric power receiving module, to supply the operating voltage. The electronic device can operate in the wireless power supplying mode or the wired power supplying mode, so as to facilitate a user to use.

Abstract: An electronic device (100), a wireless power supplying system (10) thereof and a wireless power supplying method thereof. The electronic device (100) includes an internal function circuit (30) and the wireless power supplying system (10). The wireless power supply system (10) includes a wireless electric power transmitter (11), a wireless electric power receiver (12) and a power supply detection unit (13). The wireless electric power transmitter (11) includes transmitter control module (111) and a transmitter power supplying module (112). The wireless electric power receiver (12) receives the electric power from the transmitter power supplying module (112). The power supply detection unit (13) includes an electric power detection module (131), a processor (132) and an alarm module (133). The electric power detection module (131) detects an operating voltage received from the wireless electric power receiver (12); and the processor (132) compares the operating voltage with a preset operating voltage range.

Abstract: An electronic device, and a power supplying method and a wireless power supplying system thereof. The electronic device includes a wired electric power receiving module, a wireless electric power receiving module and a switch. The wired electric power receiving module is connected to an external power supply by wired transmission. The wireless electric power receiving module receives the wireless electric power from an external wireless electric power transmitting device. The switch is coupled to the wired electric power receiving module and the wireless electric power receiving module and is used to switch between the wired electric power receiving module and the wireless electric power receiving module, to supply the operating voltage. The electronic device can operate in the wireless power supplying mode or the wired power supplying mode, so as to facilitate a user to use.

Abstract: A TV set signal switching box is provided. The switching box is connected between a TV set and a plurality of signal sources to enable the signal sources to transmit media signals with the TV set interactively. The signal switching box comprises a first interface and a second interface, the first interface is electrically connected to and communicates interactively with the TV set, and the second interface is electrically connected to a plurality of signal sources and outputs a power supply signal and a control signal to the signal sources.

Abstract: The present invention provides an extension module connected between a TV set and signal sources so that the signal sources communicate media signals with the TV set, wherein the extension module comprises a first interface and a second interface, the first interface is electrically connected and communicates with the TV set, and the second interface is electrically connected with the signal sources and outputs a power supply signal and a control signal to the signal sources.

Abstract: A method and apparatus for selecting video channel, a video device and a TV device are provided according to the embodiments of the present invention, wherein the state signal is obtained in said method for selecting video channel, wherein, the state signal is used for representing a video interface type of a accessed video deivce; and the video channel is selected according to the video interface type. The video channel selection and the upgrade of product of video devices such as DVD are realized through the solutions above.