Abstract: An adapter device communicates with a sink device and a source device using first and second communication schemes, respectively. The adapter device includes: a transceiver receiving a state read request by detecting that a serial data line connected between the adapter device and the sink device is driven to a low level when a serial clock line connected therebetween is at a high level, and drive the serial data line to the low level and drive the serial clock line to a low level; a transmitter transmitting the state read request to the source device after the serial clock line is driven to the low level; and a receiver receiving a state read signal to read data of a state register in the sink device from the source device, wherein the transceiver transmits the state read signal to the sink device via the serial data line.

Abstract: An adapter device communicates with a sink device and a source device using first and second communication schemes, respectively. The adapter device includes: a transceiver receiving a state read request by detecting that a serial data line connected between the adapter device and the sink device is driven to a low level when a serial clock line connected therebetween is at a high level, and drive the serial data line to the low level and drive the serial clock line to a low level; a transmitter transmitting the state read request to the source device after the serial clock line is driven to the low level; and a receiver receiving a state read signal to read data of a state register in the sink device from the source device, wherein the transceiver transmits the state read signal to the sink device via the serial data line.

Abstract: According to one embodiment, a transmission apparatus includes a first switching module and a second switching module. The first switching module is configured to be selectively switched to a first state for transmitting electric power using a power supply line and a second state for transmitting the electric power using a plurality of lines including the power supply line. The second switching module is configured to be selectively switched to a third state for transmitting a control signal using a control line and a fourth state for transmitting the control signal using a plurality of lines including the control line.

Abstract: According to one embodiment, a wireless transfer apparatus generates physical addresses by adding values, which are different between the source-side wireless transfer apparatuses, to a physical address received from a sink device, and transmits the generated physical addresses to the source-side wireless transfer apparatuses. The wireless transfer apparatus switches the source-side wireless transfer apparatus, which is to be used for transmitting content data to the sink device, to the source-side wireless transfer apparatus corresponding to the identifier which is associated with the physical address included in a source change request transmitted from the sink device.

Abstract: According to one embodiment, a communication system including a first communication apparatus and a second communication apparatus is provided. The first communication apparatus includes: a connector which is connectable to a cable for electrical transmission; an electric power generator which generates electric power when the cable is connected to the connector; a first communication module which communicates, by using electric power, with the second communication apparatus for supplying and receiving electric power; and an electric power receiver which receives electric power transmitted from the second communication apparatus.

Abstract: According to one embodiment, a wireless transfer apparatus generates physical addresses by adding values, which are different between the source-side wireless transfer apparatuses, to a physical address received from a sink device, and transmits the generated physical addresses to the source-side wireless transfer apparatuses. The wireless transfer apparatus switches the source-side wireless transfer apparatus, which is to be used for transmitting content data to the sink device, to the source-side wireless transfer apparatus corresponding to the identifier which is associated with the physical address included in a source change request transmitted from the sink device.

Abstract: A video distribution apparatus that distributes video data to a plurality of machines through a network, the video distribution apparatus includes a preprogramming record unit configured to record preprogramming information setting a time zone to distribute the video data to a first machine which is one of the plurality of machines, a control unit configured to determine whether or not the video data can be distributed to the first machine before the time zone set by the preprogramming information, and a communication unit configured to notify at least one of the plurality of machines that the video data can be distributed if the control unit determines that the video data cannot be distributed to the first machine.