H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/33
H04N 7/12 (2006.01) H04N 7/36 (2006.01)
Patent
CA 1238408
Abstract of the Disclosure: In a predictive encoder for use particularly in a conference television system, a signal processing unit is used in producing a prediction signal and comprises three prediction circuits (22, 23, 31) and a selection circuit (24) coupled to the prediction circuits. The prediction circuits are for prodicing an inframe, an interframe, and a background prediction signals, respec- tively. Those signals are produced by processing an original signal at instants which precede a current instant and are different from one another. The selection circuit is for selecting one of the inframe, the inter- frame, and the background prediction signals. Therefore, it is possible to produce the prediction signal suitably predictive of the original signal. The signal processing circuit serves equally well in a predictive decoder.
494909
Furukawa Akihiro
Hashimoto Hideo
Iinuma Kazumoto
Koga Toshio
Mukawa Naoki
Corporation Nec
Nippon Telegraph And Telephone Corporation
Smart & Biggar
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