发明名称 Television picture size altering apparatus
摘要 The size of a color television picture field is changed without changing the size of the raster. This is achieved in an apparatus that includes means responsive to a field of television video signals for sampling same and providing a predetermined number of samples of television video signals per line and a predetermined number of lines per field and means responsive to the predetermined number of samples per line and lines per field for providing a full field of television video signals. Size reduction is accomplished by causing the first mentioned means to skip samples provided at the output thereof in groups of N, where N is the number of samples in a color subcarrier cycle, and to skip line pairs of the field.
申请公布号 US4134128(A) 申请公布日期 1979.01.09
申请号 US19760754688 申请日期 1976.12.27
申请人 RCA CORPORATION 发明人 HURST, ROBERT N.
分类号 H04N9/74;G06T3/40;H04N3/223;H04N5/073;H04N5/262;H04N5/45;H04N5/937;(IPC1-7):H04N5/22;H04N5/14 主分类号 H04N9/74
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