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专利名称：Picture image discriminating apparatus发明人：Masahiko Matsunawa申请号：US06/452027申请日：19821221公开号：US04556916A公开日：19851203
摘要：A picture image discriminating apparatus which operates for scanning adocument and transmitting a picture signal obtained through converting a light signalphotoelectrically at every unit reading size of 0.01 mm.sup. 2 or over to a signalprocessing division for picture image discrimination by a peak interval of a time seriesoutput of the picture signal. The picture image discriminating apparatus has a
differentiating circuit to differentiate a time series output of the picture signal obtainableaccording to the light signal, a binary-coding circuit to compare an output signal from thedifferentiating circuit with a specific level and output a binary pulse signal, and a counterto count an output pulse from the binary-coding circuit.
申请人：KONISHIROKU PHOTO INDUSTRY CO., LTD.
代理人：James E. Nilles,Thomas F. Kirby
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