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Picture coder

阅读:306发布:2023-03-23

专利汇可以提供Picture coder专利检索,专利查询,专利分析的服务。并且PURPOSE: To perform invariably-efficient coding by freely selecting either high-speed transmission (partial thinning) or high-quality transmission (no thinning) and by making an estimate matching with the selected one.
CONSTITUTION: Transmitting original picture 1 is converted by photoelectric converter circuit 2 into a black and white binary picture signal. With switch 25 up, at this time, thinning process circuit 3 thins the signal nearly to thin width 1 and after a forecasting process by forecast circuit 4 matching with a thinning picture signal, it is inputted to forecast-error-signal coding circuit 5, where it is coded and sent out to a transmission line. With switch 25 down, the picture signal converted into a black and white binary one is forecast-processed by forecast circuit 6 matching with a non-thinning picture signal and then inputted to circuit 5. By receiving signal 41 from a transmitting-original-picture inserting detection circuit, control circuit 8 generates a clock signal, a synchronizing signal and a control signal, thereby controlling respective circuits.
COPYRIGHT: (C)1979,JPO&Japio,下面是Picture coder专利的具体信息内容。

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