| 摘要 |
<p>[PROBLEMS]To effectively use a broadcast receiver (tuner) included in a display device of, for example, a television receiver.[MEANS FOR SOLVING PROBLEMS]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) is 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 process 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.</p> |
