| 摘要 |
PROBLEM TO BE SOLVED: To effectively use a broadcast receiver (tuner) included in a display device of, for example, a television receiver. SOLUTION: A personal computer (PC) 10 and a television receiver (TV) 30 are connected to each other with one HDMI cable 1. A TMDS channel in the HDMI cable 1 is used to transmit a video signal from the PC 10 to the TV 30. A predetermined line (for example, a reserve line or an HPD line) in the HDMI cable is used as a high-speed data line for performing bidirectional communication. Stream data obtained in the broadcast receiver (tuner) of the TV 30 are transmitted to the PC 10 using the high-speed data line. The PC 10 records the received stream data or performs an image synthesizing process and other processes using the received stream data. The PC 10 transmits the synthesized video signal to the TV 30 over the TDMS channel. On the TV 30, a desktop screen, a reproduced image, a web page, etc. are displayed simultaneously with a television screen. COPYRIGHT: (C)2009,JPO&INPIT
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