发明名称 Apparatus for recovering a frequency-converted chrominance component that is substantially free of cross-talk components
摘要 Apparatus is provided for recovering, from a composite video signal which is reproduced from successive record tracks on a record medium, a frequency-converted chrominance component that is substantially free of cross-talk components. The frequency-converted chrominance components which are recorded in adjacent tracks have chrominance carriers which exhibit a frequency interleaved relationship with respect to each other. During reproduction, at least the frequency-converted chrominance component, together with an accompanying cross-talk component, is reproduced from the respective tracks. A cross-talk separating circuit, including a comb filter, is supplied with the reproduced chrominance component and separates the cross-talk component therefrom. A combining circuit functions to combine the separated cross-talk component and the reproduced frequency-converted chrominance component to produce a frequency-converted chrominance component that is substantially free of cross-talk components. In accordance with one feature, the cross-talk free, frequency-converted chrominance component is supplied directly to the recording circuit of a video signal recorder.
申请公布号 US4344082(A) 申请公布日期 1982.08.10
申请号 US19800168026 申请日期 1980.07.14
申请人 SONY CORPORATION 发明人 ISHIODORI, MAKOTO
分类号 H04N9/84;(IPC1-7):H04N5/78 主分类号 H04N9/84
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