| 摘要 |
A video data transmitting and receiving system which compresses an amount of information of a video signal at a compression rate in accordance with a transmission mode, directly modulates the video signal after compression in accordance with the transmission mode or once records the video signal by a recording and reproducing apparatus and then reproduces the same with a different rate from that at the recording, detects the transmission mode at a reception side, directly decodes this in accordance with the detected transmission mode or once records the same, reproduces this at a different rate from that at the recording and then decodes the resultant data.
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