发明名称 ESTIMATE CODER FOR TELEVISION SIGNAL
摘要 <p>PURPOSE:To improve the coding efficiency and to compress and encode a TV signal at a low transmission speed for transmission, by determining a dynamic vector taking both dynamic vector information and estimate error information into account. CONSTITUTION:An analog TV signal from an input line IN is digitized at an A/D conversion circuit 11 to form a block having two-dimension spread over both horizontal and vertical scanning lines by a scanning line conversion circuit 12. The TV signal scanned and converted is applied to a delay circuit 13 and an estimate error information amount generating circuit 141 of a dynamic vector output circuit 14. A picture signal from a frame memory 15 and information representing estimate function from a sequencer 142 are applied to the circuit 141 and a dynamic vector taking both dynamic vector and estimate error information into account is outputted from the circuit 14. The output from the circuit 13 is applied to a code compression circuit 20 via a quantization circuit 19, the output is compressed at the circuit 20 with the dynamic vector from the circuit 14, allowing to compress and code the TV signal in a low transmission speed for transmission.</p>
申请公布号 JPS58101581(A) 申请公布日期 1983.06.16
申请号 JP19810199499 申请日期 1981.12.12
申请人 NIPPON DENKI KK 发明人 KOGA TOSHIO
分类号 H04B14/06;H04N7/36 主分类号 H04B14/06
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