Abstract: Successful communication required between external devices is achieved. A content data processing unit is connected to an external device through a first line. A communication unit is connected to the external device through a second line. The content data processing unit represents, for example, a content data transmitting unit that transmits content data to the external device, or a content data receiving unit that receives the content data from the external device. The communication unit transmits an inquiry signal to the external device through the second line in a state in which the first line is unavailable. For example, in a case where the interface unit is in a standby state, it is possible to inquire a required item to the external device while the state is maintained. Since it is possible to decrease power consumption of the external device as much as possible, it is possible to contribute to saving of energy of the external device.

Abstract: Transmission of stereo image data may be performed between devices, where a source device receives E-EDID from a sink device via DDC of an HDMI cable. This E-EDID contains information on 3D image data transmission modes supportable by the sink device. Based on information on 3D image data transmission modes from the sink device, the source device selects a predetermined transmission mode from among the 3D image data transmission modes supportable by the sink device. The source device transmits 3D image data in the selected transmission mode to the sink device. The source device transmits information on the transmission mode for the 3D image data, to the sink device by using an AVI InfoFrame packet or the like. The sink device processes the 3D image data received from the source device in accordance with its transmission mode, thereby obtaining left and right eye image data.

Abstract: Transmission of stereo image data may be performed between devices, where a source device receives E-EDID from a sink device via DDC of an HDMI cable. This E-EDID contains information on 3D image data transmission modes supportable by the sink device. Based on information on 3D image data transmission modes from the sink device, the source device selects a predetermined transmission mode from among the 3D image data transmission modes supportable by the sink device. The source device transmits 3D image data in the selected transmission mode to the sink device. The source device transmits information on the transmission mode for the 3D image data, to the sink device by using an AVI InfoFrame packet or the like. The sink device processes the 3D image data received from the source device in accordance with its transmission mode, thereby obtaining left and right eye image data.

Abstract: Transmission of stereo image data may be performed between devices, where a source device receives E-EDID from a sink device via DDC of an HDMI cable. This E-EDID contains information on 3D image data transmission modes supportable by the sink device. Based on information on 3D image data transmission modes from the sink device, the source device selects a predetermined transmission mode from among the 3D image data transmission modes supportable by the sink device. The source device transmits 3D image data in the selected transmission mode to the sink device. The source device transmits information on the transmission mode for the 3D image data, to the sink device by using an AVI InfoFrame packet or the like. The sink device processes the 3D image data received from the source device in accordance with its transmission mode, thereby obtaining left and right eye image data.

Abstract: Transmission of stereo image data may be performed between devices, where a source device receives E-EDID from a sink device via DDC of an HDMI cable. This E-EDID contains information on 3D image data transmission modes supportable by the sink device. Based on information on 3D image data transmission modes from the sink device, the source device selects a predetermined transmission mode from among the 3D image data transmission modes supportable by the sink device. The source device transmits 3D image data in the selected transmission mode to the sink device. The source device transmits information on the transmission mode for the 3D image data, to the sink device by using an AVI InfoFrame packet or the like. The sink device processes the 3D image data received from the source device in accordance with its transmission mode, thereby obtaining left and right eye image data.

Abstract: Transmission of stereo image data may be performed between devices, where a source device receives E-EDID from a sink device via DDC of an HDMI cable. This E-EDID contains information on 3D image data transmission modes supportable by the sink device. Based on information on 3D image data transmission modes from the sink device, the source device selects a predetermined transmission mode from among the 3D image data transmission modes supportable by the sink device. The source device transmits 3D image data in the selected transmission mode to the sink device. The source device transmits information on the transmission mode for the 3D image data, to the sink device by using an AVI InfoFrame packet or the like. The sink device processes the 3D image data received from the source device in accordance with its transmission mode, thereby obtaining left and right eye image data.

Abstract: The present invention relates to a communication system, a transmission device, a reception device, a communication method, a program, and a communication cable, whereby high-speed communication can be executed while maintaining compatibility. In the event that an HDMI(R) source 71 and an HDMI(R) sink 72 execute two-way IP communication using a CEC line 84 and a signal line 141, a switching control unit 121 controls a switch 133 to select a partial signal making up the differential signal from a conversion unit 131 at the time of transmitting data, and controls the switch 133 to select a partial signal making up a differential signal from a receiver 82 at the time of transmitting data, and in the case of executing two-way communication using the CEC line 84 alone, the switching control unit 121 controls the switch 133 to select the CEC signal from the HDMI(R) source 71 or receiver 82 with the switch 133. The present invention may be applied to HDMI(R), for example.

Abstract: Stereoscopic image information (3D information) can be efficiently transmitted between electronic devices at high speed. Using a capability register (Capability Register) of MHL, the 3D information is transmitted between devices. (1) An MHL sink device transmits a “SET_INT command” immediately after changing the 3D information of the capability register, a 3D_CHG flag of an MHL source device side is set to “1” and the MHL sink device notifies the MHL source device of the 3D information. (2) The MHL source device responds ACK. (3) The MHL source device recognizes that the 3D_CHG flag is set to 1, transmits a “READ_DEVCAP command” in which address information of the 3D information of the capability register is added to the MHL sink device and reads only the 3D information from the capability register. Using a scratchpad register of MHL, the 3D information is transmitted between the devices and detailed 3D control is performed.

Abstract: The present invention relates to a communication system, a transmission device, a reception device, a communication method, a program, and a communication cable, whereby high-speed communication can be executed while maintaining compatibility. In the event that an HDMI® source 71 and an HDMI® sink 72 execute two-way IP communication using a CEC line 84 and a signal line 141, a switching control unit 121 controls a switch 133 to select a partial signal making up the differential signal from a conversion unit 131 at the time of transmitting data, and controls the switch 133 to select a partial signal making up a differential signal from a receiver 82 at the time of transmitting data, and in the case of executing two-way communication using the CEC line 84 alone, the switching control unit 121 controls the switch 133 to select the CEC signal from the HDMI® source 71 or receiver 82 with the switch 133. The present invention may be applied to HDMI®, for example.

Abstract: The present invention relates to a communication system, a transmission device, a reception device, a communication method, a program, and a communication cable, whereby high-speed communication can be executed while maintaining compatibility. In the event that an HDMI(R) source 71 and an HDMI(R) sink 72 execute two-way IP communication using a CEC line 84 and a signal line 141, a switching control unit 121 controls a switch 133 to select a partial signal making up the differential signal from a conversion unit 131 at the time of transmitting data, and controls the switch 133 to select a partial signal making up a differential signal from a receiver 82 at the time of transmitting data, and in the case of executing two-way communication using the CEC line 84 alone, the switching control unit 121 controls the switch 133 to select the CEC signal from the HDMI(R) source 71 or receiver 82 with the switch 133. The present invention may be applied to HDMI(R), for example.

Abstract: Transmission of stereo image data may be performed between devices, where a source device receives E-EDID from a sink device via DDC of an HDMI cable. This E-EDID contains information on 3D image data transmission modes supportable by the sink device. Based on information on 3D image data transmission modes from the sink device, the source device selects a predetermined transmission mode from among the 3D image data transmission modes supportable by the sink device. The source device transmits 3D image data in the selected transmission mode to the sink device. The source device transmits information on the transmission mode for the 3D image data, to the sink device by using an AVI InfoFrame packet or the like. The sink device processes the 3D image data received from the source device in accordance with its transmission mode, thereby obtaining left and right eye image data.

Abstract: The present invention relates to a communication system, a transmission device, a reception device, a communication method, a program, and a communication cable, whereby high-speed communication can be executed while maintaining compatibility. In the event that an HDMI (R) source 71 and an HDMI (R) sink 72 execute two-way IP communication using a CEC line 84 and a signal line 141, a switching control unit 121 controls a switch 133 to select a partial signal making up the differential signal from a conversion unit 131 at the time of transmitting data, and controls the switch 133 to select a partial signal making up a differential signal from a receiver at the time of transmitting data, and in the case of executing two-way communication using the CEC line 84 alone, the switching control unit 121 controls the switch 133 to select the CEC signal from the HDMI (R) source 71 or receiver 82 with the switch 133. The present invention may be applied to HDMI (R), for example.

Abstract: Transmission of stereo image data may be performed between devices, where a source device receives E-EDID from a sink device via DDC of an HDMI cable. This E-EDID contains information on 3D image data transmission modes supportable by the sink device. Based on information on 3D image data transmission modes from the sink device, the source device selects a predetermined transmission mode from among the 3D image data transmission modes supportable by the sink device. The source device transmits 3D image data in the selected transmission mode to the sink device. The source device transmits information on the transmission mode for the 3D image data, to the sink device by using an AVI InfoFrame packet or the like. The sink device processes the 3D image data received from the source device in accordance with its transmission mode, thereby obtaining left and right eye image data.

Abstract: The present invention relates to a communication system, a transmission device, a reception device, a communication method, a program, and a communication cable, whereby high-speed communication can be executed while maintaining compatibility. In the event that an HDMI® source 71 and an HDMI® sink 72 execute two-way IP communication using a CEC line 84 and a signal line 141, a switching control unit 121 controls a switch 133 to select a partial signal making up the differential signal from a conversion unit 131 at the time of transmitting data, and controls the switch 133 to select a partial signal making up a differential signal from a receiver at the time of transmitting data, and in the case of executing two-way communication using the CEC line 84 alone, the switching control unit 121 controls the switch 133 to select the CEC signal from the HDMI® source 71 or receiver 82 with the switch 133. The present invention may be applied to HDMI®, for example.

Abstract: The present invention relates to a communication system, a transmission device, a reception device, a communication method, a program, and a communication cable, whereby high-speed communication can be executed while maintaining compatibility. In the event that an HDMI® source 71 and an HDMI® sink 72 execute two-way IP communication using a CEC line 84 and a signal line 141, a switching control unit 121 controls a switch 133 to select a partial signal making up the differential signal from a conversion unit 131 at the time of transmitting data, and controls the switch 133 to select a partial signal making up a differential signal from a receiver 82 at the time of transmitting data, and in the case of executing two-way communication using the CEC line 84 alone, the switching control unit 121 controls the switch 133 to select the CEC signal from the HDMI® source 71 or receiver 82 with the switch 133. The present invention may be applied to HDMI®, for example.

Abstract: Transmission of stereo image data may be performed between devices, where a source device receives E-EDID from a sink device via DDC of an HDMI cable. This E-EDID contains information on 3D image data transmission modes supportable by the sink device. Based on information on 3D image data transmission modes from the sink device, the source device selects a predetermined transmission mode from among the 3D image data transmission modes supportable by the sink device. The source device transmits 3D image data in the selected transmission mode to the sink device. The source device transmits information on the transmission mode for the 3D image data, to the sink device by using an AVI InfoFrame packet or the like. The sink device processes the 3D image data received from the source device in accordance with its transmission mode, thereby obtaining left and right eye image data.

Abstract: The present invention makes it possible to perform transmission of stereo image data between devices in a favorable manner. A source device (disc player 210) receives E-EDID from a sink device (television receiver 250) via DDC of an HDMI cable 350. This E-EDID contains information on 3D image data transmission modes that can be supported by the sink device. On the basis of the information on 3D image data transmission modes from the sink device, the source device selects a predetermined transmission mode from among the 3D image data transmission modes that can be supported by the sink device. The sink device transmits 3D image data in the selected transmission mode to the sink device. For the convenience of processing in the sink device, the source device transmits information on the transmission mode for the 3D image data transmitted, to the sink device by using an AVI InfoFrame packet or the like.

Abstract: The present invention relates to a communication system, a transmission device, a reception device, a communication method, a program, and a communication cable, whereby high-speed communication can be executed while maintaining compatibility. In the event that an HDMI® source 71 and an HDMI® sink 72 execute two-way IP communication using a CEC line 84 and a signal line 141, a switching control unit 121 controls a switch 133 to select a partial signal making up the differential signal from a conversion unit 131 at the time of transmitting data, and controls the switch 133 to select a partial signal making up a differential signal from a receiver 82 at the time of transmitting data, and in the case of executing two-way communication using the CEC line 84 alone, the switching control unit 121 controls the switch 133 to select the CEC signal from the HDMI® source 71 or receiver 82 with the switch 133. The present invention may be applied to HDMI®, for example.

Abstract: Successful communication required between external devices is achieved. A content data processing unit is connected to an external device through a first line. A communication unit is connected to the external device through a second line. The content data processing unit represents, for example, a content data transmitting unit that transmits content data to the external device, or a content data receiving unit that receives the content data from the external device. The communication unit transmits an inquiry signal to the external device through the second line in a state in which the first line is unavailable. For example, in a case where the interface unit is in a standby state, it is possible to inquire a required item to the external device while the state is maintained. Since it is possible to decrease power consumption of the external device as much as possible, it is possible to contribute to saving of energy of the external device.

Abstract: The present invention relates to a communication system, a transmission device, a reception device, a communication method, a program, and a communication cable, whereby high-speed communication can be executed while maintaining compatibility. In the event that an HDMI(R) source 71 and an HDMI(R) sink 72 execute two-way IP communication using a CEC line 84 and a signal line 141, a switching control unit 121 controls a switch 133 to select a partial signal making up the differential signal from a conversion unit 131 at the time of transmitting data, and controls the switch 133 to select a partial signal making up a differential signal from a receiver 82 at the time of transmitting data, and in the case of executing two-way communication using the CEC line 84 alone, the switching control unit 121 controls the switch 133 to select the CEC signal from the HDMI(R) source 71 or receiver 82 with the switch 133. The present invention may be applied to HDMI(R), for example.