| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: invention relates to a transmitting device and a receiving device, particularly a high definition multimedia interface (HDMI). A disc writing device 210 transmits function information indicating that a data transmission module (I/F 213 high-speed data line) is configured to transmit data to an external device through a data channel composed of a backup line and rapid connection detection line of an HDMI cable 350 to a television receiver 250 through a home electronic device control line, which an HDMI cable 350 control data line. A television receiver 250 receives function information such that it can be determined if the disc writing device 210 is an eHDMI-compatible device, and if so, a compatible transmission format (application) can be recognised. Also provided is the capability of transmitting function information of the television receiver 250 to the disc writing device 210.EFFECT: enabling an external device to recognise information relating to its data transmission module if said external device includes a data transmission module configured to transmit data through a data channel composed of a pair of differential transmission channels included in the transmission channel.7 cl, 39 dwg, 4 tbl |
