| 摘要 |
To effectively use a broadcast reception section (tuner) of a display apparatus such as a television receiver. A personal computer (PC) 10 and a television receiver (TV) 30 are interconnected with one HDMI cable (1). For the transmission of a video signal from the PC 10 to the TV (30), a TMDS channel of the HDMI cable (1) is used. A high-speed data line for executing bidirectional communication using a predetermined line (for example, a reserve line, an HPD line) of the HDMI cable is arranged. Stream data obtained in a broadcast reception section (tuner) of the TV 30 is transmitted to the PC 10 by use of the high-speed data line. The PC 10 records the received stream data or executes image synthesis processing and the line by use of the stream data. The PC 10 transmits the video signal after synthesis processing to the TV 30 over a TDMS channel. On the TV 30, a desktop screen, a reproduced image, a web page, and the like are simultaneously displayed along with a television screen. |
