发明名称 Digital color signal processing circuit.
摘要 <p>A digital color signal processing circuit comprises an automatic phase control loop circuit (l3-l7, l9) including a first frequency converter (l3, l4) which frequency-converts a carrier frequency of an input digital color signal into a first predetermined frequency, a second frequency converter (20) for frequency-converting a carrier frequency of an output signal of the automatic phase control loop circuit into a second predetermined frequency different from the first predetermined frequency, and a control circuit (36, 37, 2l) for controlling the second frequency converter based on a control signal obtained from the automatic phase control loop circuit. An output signal of the second frequency converter is outputted as an output signal of the digital color signal processing circuit.</p>
申请公布号 EP0219338(A2) 申请公布日期 1987.04.22
申请号 EP19860307914 申请日期 1986.10.14
申请人 VICTOR COMPANY OF JAPAN, LIMITED 发明人 OZAKI, HIDETOSHI
分类号 H04N9/804;H03B21/02;H03D7/16;H03J7/02;H04N9/79;H04N9/808;H04N9/83;(IPC1-7):H03D7/16 主分类号 H04N9/804
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