Abstract: Provided is an interface circuit that includes a circuitry that extracts a first signal, including a clock component, from a differential signal received from an external device through a transmission path. The circuitry extracts a second signal, including a clock component, from an in-phase signal received from the external device. The circuitry communicates with the external device through a pair of differential transmission paths included in the transmission path. The circuitry is notified by the external device of a connection state of the external device by a DC bias potential of at least one of the pair of differential transmission paths.

Abstract: It is possible to preferably transmit a command received from an external network to a corresponding device in an internal network. A command transmitted from a device on a first network is received. Transmitter information and receiver information are added to the received command, and the command is sent to a command transmission path of a second network. The transmitter information added to the command is rewritten from information regarding a proxy device to information regarding a device capable of transmitting the command when the proxy device is a device incapable of transmitting the received command.

Abstract: An information processing device includes a first communication section, a second communication section, and a processing section. The first communication section is configured to perform communication using an IP. The second communication section is configured to perform communication using a non-IP wired interface. The processing section is configured to communicate a control command using one of the first communication section and the second communication section according to a specified condition, the first communication section being used to communicate an IP control command that is the control command using the IP, the second communication section being used to communicate a wire control command that is the control command with respect to a communication using the wired interface.

Abstract: Damaging a device that is not compatible with a functional extension is to be avoided. A signal is transmitted to an external device through a transmission channel. A data block containing capability information indicating existence/non-existence of compatibility with an extended function is received from the external device through the transmission channel. A layer field that indicates the connection layer is provided in this data block. A check is made to determine whether all the devices existing in the path are compatible with the extended function based on the value of the layer field provided in the data block, and the contents of the transmission signal are then determined.

Abstract: Damaging a device that is not compatible with a functional extension is to be avoided. A signal is transmitted to an external device through a transmission channel. A data block containing capability information indicating existence/non-existence of compatibility with an extended function is received from the external device through the transmission channel. A layer field that indicates the connection layer is provided in this data block. A check is made to determine whether all the devices existing in the path are compatible with the extended function based on the value of the layer field provided in the data block, and the contents of the transmission signal are then determined.

Abstract: To enable to favorably send a compressed digital audio signal at a high data rate. First, second, and third metadata are added to a compressed digital audio signal of a predetermined number of channels. The first metadata is metadata indicating a sending frequency of the compressed digital audio signal. The second metadata is metadata indicating a sampling frequency used for converting an uncompressed digital audio signal of each channel into an analog signal. The third metadata is metadata indicating a ratio of the sending frequency to the sampling frequency. The compressed digital audio signal provided with each type of the metadata is transmitted to an external device through a predetermined sending path.

Abstract: There is provided a method for controlling an electronic device, the method comprising starting control of emission of laser light from at least one light-emitting part of a receptacle, wherein the at least one light-emitting part comprises an optical member and a lens associated with the optical member, the start of the control of the emission of the laser light is based on a flow of current from a partner side electronic device to at least two electrical contacts of the receptacle and detection of a connection of a cable to the receptacle, and the at least one light-emitting part emits the laser light to communicate with the partner side electronic device.

Abstract: A plurality of kinds of LPCM signals/compression digital audio signals is switched to one another in transmission, thereby enabling audio reproduction to be satisfactorily carried out. A digital audio signal is transmitted to an external apparatus through a predetermined transmission path. Information associated with the digital audio signal to be next transmitted is added to the digital audio signal which is currently being transmitted. For example, first metadata exhibiting a transmission frequency of the digital audio signal, and second metadata exhibiting a data type of the digital audio signal are contained in the information.

Abstract: To make it possible to apply optimal decoding processing to an encoded stream including a plurality of pieces of encoded data having degree-of-priority information. An encoded stream including a plurality of pieces of encoded data having degree-of-priority information is acquired. Whether or not a decoding ability of a reception side is equal to or greater than a decoding ability of the own side is determined on the basis of decoding ability information of the reception side indicating to what number of degree of priority decoding can be performed. In a case where the decoding ability of the reception side is equal to or greater than the decoding ability of the own side, an encoded stream is transmitted. On the contrary, in a case where the decoding ability of the reception side is less than the decoding ability of the own side, a decoded stream including decoded data generated by subjecting the encoded stream to decoding processing is transmitted.

Abstract: A signal is transmitted at a high speed in a direction opposite to a transmitting direction of a main large-capacity channel. A first transmitting unit transmits a first signal including a clock component to an external device through a transmission path as a differential signal. A second transmitting unit superimposes a second signal including a clock component on the transmission path as an in-phase signal to transmit to the external device. A state notifying unit communicates with the external device through a pair of differential transmission paths included in the transmission path and notifies the external device of a connection state of its own device by a DC bias potential of at least one of the pair of differential transmission paths.

Abstract: It is made possible to easily acquire and use various kinds of information of each HDMI device in an HDMI cluster. A database in which at least an HDMI CEC logical address, an HDMI CEC physical address, and acquisition destination information for acquiring unique information are registered for each HDMI device in an HDMI cluster is included. A processing unit performs processing using this database. For example, the processing unit transmits the database to an external device. Also, for example, the processing unit displays an HDMI device in an HDMI cluster, a connection status thereof, and unique information of each HDMI device on the basis of this database.

Abstract: Transmission of a high-definition video signal or the like that requires a wide transmission band is realized. A video signal is divided by frames to generate divisional video signals, and the respective divisional video signals are transmitted to an external device via transmission channels independent of one another Transmission of a high-definition video signal or the like that requires a wider transmission band than the transmission band of one transmission channel can be realized in a preferred manner. For each frame, first information indicating the existence of the other divisional video signal to be combined therewith and second information for establishing synchronization with the other divisional video signal to be combined therewith are added to the divisional video signals to be transmitted by a data transmitting unit. In the external device, a reception video signal can be easily obtained by arranging the divisional video signals in the frame order.

Abstract: There is provided a cable including at least one optical fiber cable, at least two electrical cables provided so as to sandwich the optical fiber cable, and plugs positioned at both ends and each having an electrical contact part connected to each of the electrical cables.

Abstract: There is provided an electronic device including: a receptacle comprising at least two electrical contacts and a plurality of a light-emitting parts configured to emit laser light for performing communication by light to a sink device; and a light emission control part configured to control emission of laser light from the plurality of light-emitting parts, wherein the light emission control parts starts control of the emission of the laser light from the plurality of light-emitting parts by a current when a cable is connected to the receptacle and the current flow to the electrical contacts from the sink device.

Abstract: A signal is transmitted at a high speed in a direction opposite to a transmitting direction of a main large-capacity channel. A first transmitting unit transmits a first signal including a clock component to an external device through a transmission path as a differential signal. A second transmitting unit superimposes a second signal including a clock component on the transmission path as an in-phase signal to transmit to the external device. A state notifying unit communicates with the external device through a pair of differential transmission paths included in the transmission path and notifies the external device of a connection state of its own device by a DC bias potential of at least one of the pair of differential transmission paths.

Abstract: To enable to favorably send a compressed digital audio signal at a high data rate. First, second, and third metadata are added to a compressed digital audio signal of a predetermined number of channels. The first metadata is metadata indicating a sending frequency of the compressed digital audio signal. The second metadata is metadata indicating a sampling frequency used for converting an uncompressed digital audio signal of each channel into an analog signal. The third metadata is metadata indicating a ratio of the sending frequency to the sampling frequency. The compressed digital audio signal provided with each type of the metadata is transmitted to an external device through a predetermined sending path.

Abstract: A video signal and an audio signal are TMDS transmitted from a source device to a sink device. Through a reserved line and a HPD line provided separately from a TMDS transmission line, an Ethernet™ signal is bidirectionally transmitted, and also, a SPDIF signal is transmitted from the sink device to the source device. The Ethernet™ signal bidirectionally transmitted between Ethernet™ transmitter/receiver circuits is differentially transmitted by an amplifier and is received by the amplifier. The SPDIF signal from a SPDIF transmitter circuit is common-mode transmitted from an adder and is received by the adder to be supplied to the SPDIF receiver circuit.

Abstract: A plurality of kinds of LPCM signals/compression digital audio signals is switched to one another in transmission, thereby enabling audio reproduction to be satisfactorily carried out. A digital audio signal is transmitted to an external apparatus through a predetermined transmission path. Information associated with the digital audio signal to be next transmitted is added to the digital audio signal which is currently being transmitted. For example, first metadata exhibiting a transmission frequency of the digital audio signal, and second metadata exhibiting a data type of the digital audio signal are contained in the information.

Abstract: A video signal and an audio signal are TMDS transmitted from a source device to a sink device. Through a reserved line and a HPD line provided separately from a TMDS transmission line, an Ethernet™ signal is bidirectionally transmitted, and also, a SPDIF signal is transmitted from the sink device to the source device. The Ethernet™ signal bidirectionally transmitted between Ethernet™ transmitter/receiver circuits is differentially transmitted by an amplifier and is received by the amplifier. The SPDIF signal from a SPDIF transmitter circuit is common-mode transmitted from an adder and is received by the adder to be supplied to the SPDIF receiver circuit.

Abstract: Bidirectional transmission is performed by switching transmission directions of a serial transmission path. A transmission system includes first and second devices which perform transmission to each other through a transmission path. The first device includes a first transmission circuit which performs transmission to the second device through the transmission path, and a first transmission direction reversal control unit which opens the transmission path after making a request for reversal of a transmission direction in the transmission path to the second device, and reverses the transmission direction at the first transmission circuit in response to permission for reversal from the second device.