| 摘要 |
<p>A device which processes a television signal for transmission in which the television signal is divided into horizontal scanning line units, video signals in two consecutive horizontal scanning periods are compared, and when either part or all of these two signals differ, transmits by means of a television signal transmitter (3, 4, 7A, 7B) only the video signal Vx for that part of the signals which is different, and which uses said transmitted television signal in the television signal receiver (25, 26, 27, 28) to reproduce a complete video signal with all horizontal scanning periods by calculating, mixing, overlaying, or replacing video signal Vx for either part or all of the video signal Vn-1 for the one preceding horizontal scanning period. <IMAGE></p> |
