Kabushiki Kaisha Toshiba

Kenji Komori

Takashi Doi

Nobuaki Suzuki

Hideki Miyazato

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.

Adapter device and communication method

According to one embodiment, an electronic apparatus includes a receiver and a transmitter. The receiver receives a video signal from an external electronic apparatus through a cable conforming to a High-Definition Multimedia Interface (HDMI) standard. The receiver receives, from the external electronic apparatus through the cable, information for transferring a signal using a function of Audio Return Channel (ARC) or enhanced Audio Return Channel (eARC) of the HDMI standard. The transmitter transmits a position information signal or an audio signal to the external electronic apparatus through the cable, in accordance with the received information.

Electronic apparatus and control method

According to one embodiment, a communication system includes a video signal receiver, a video signal output module, a power control signal receiver, and a socket. The video signal receiver is configured to receive a video signal from a first external apparatus. The video signal output module is configured to output, to a second external apparatus, the video signal received from the first external apparatus. The power control signal receiver is configured to receive a power control from the first external apparatus. The power control signal receiver is lower in power consumption than the video signal receiver. A power cable configured to supply power to the second external apparatus is connected to the socket. When the power control signal receiver receives a power control signal for activation, power is supplied to the video signal receiver and the socket.

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Yokosuka, Japan

Kenji Komori