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专利名称：Digital image processor发明人：Toshiki Matsugami,Toru Miyazaki申请号：US08/843238申请日：19970414公开号：US05929928A公开日：19990727
摘要：Pattern data is generated in accordance with horizontal and vertical
synchronizing components of a video signal. The pattern data and the video signal arestored in a memory. The video signal is written in an effective image period, while patterndata is written in other periods. Write and read addresses for the memory are generatedin accordance with the horizontal and vertical synchronizing components of the videosignal. Thus, pattern data is written over the video signal corresponding to the position atwhich display is required. Whether the output read from the memory is a video signal orpattern data is discriminated by a signal discrimination circuit in accordance with the readaddress. Pattern data and the video signal are individually signal- processed. Inaccordance with a result of the discrimination performed by the signal discriminationcircuit, the output from a pattern data processor and the output from a video signalprocessor are switched and displayed by a monitor.
申请人：KABUSHIKI KAISHA TOSHIBA
代理机构：Pillsbury Madison & Sutro LLP
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