| 摘要 |
<p>A transmitting apparatus (14), to which an input video signal (VS_IN) and an input audio signal (AS_IN) are inputted from an MPEG decoder (17), includes a dummy signal generating circuit (11) and a selecting circuit (12). The dummy signal generating circuit (11) generates a dummy video signal (VS_D) having a higher resolution than the input video signal (VS_IN). The selecting circuit (12) outputs, in accordance with a control signal (CS) inputted based on the information amount of the input audio signal (AS_IN), either one of the input video signal (VS_IN) and dummy video signal (VS_D) to a video/audio transmitting circuit (13) as a selected video signal (VS). The video/audio transmitting circuit (13) multiplexes the input audio signal (AS_IN) with the selected video signal (VS) to generate and transmit a video/audio signal (VAS). Thus, audio signals of high sample rate or of multi-channel are multiplexed with video signals, independently of the format of the video signals, for transmission.</p> |
