Sub-sample television signal processing circuit
专利汇可以提供Sub-sample television signal processing circuit专利检索，专利查询，专利分析的服务。并且PURPOSE: To prevent the generation of a large area flicker and to improve the S/N of a complete still picture by executing the noise decreasing processing even to a high area frequency component and a low area frequency component only at the time of the complete still picture.
CONSTITUTION: A sub-sampled input television signal 101 is guided first to a noise removing circuit 102 to use an inter-frame correlation, and concerning all frequency components, a noise decreasing processing is executed. A noise decreased television signal 103 is supplied, interpolated and restored to a sub- sample decoder circuit 104. Both signal 101 and signal 103 are guided to a switching circuit 104. The switching circuit 104, when the signal 101 is a complete still picture signal, selects and outputs the signal 103. For the television signal outputted by the switching circuit 104, a restoring television signal outputted by the sub-sample decoder circuit 109 is subtracted by a subtracter 108. The output signal of the subtracter 108 is supplied to a low pass filter 111 and a low area frequency component is extracted. The low area frequency and the high area restoring television signal are synthesized with an adder 113.
COPYRIGHT: (C)1988,JPO&Japio，下面是Sub-sample television signal processing circuit专利的具体信息内容。
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