发明授权
US4779143A Video disc recording and/or reproducing apparatus for color video signal
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用于彩色视频信号的视盘记录和/或再现装置
- 专利标题: Video disc recording and/or reproducing apparatus for color video signal
- 专利标题(中): 用于彩色视频信号的视盘记录和/或再现装置
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申请号: US930564申请日: 1986-11-14
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公开(公告)号: US4779143A公开(公告)日: 1988-10-18
- 发明人: Masao Oku , Isao Saito
- 申请人: Masao Oku , Isao Saito
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX60-254728 19851115; JPX60-264875 19851127
- 主分类号: H04N9/825
- IPC分类号: H04N9/825 ; H04N9/81 ; H04N9/89
摘要:
A luminance signal Y and two color difference signals (R-Y), (B-Y) are separated from a color video signal. A color difference time division multiplex (TDM) signal is produced from the two color difference signals by a time base compression and time base multiplexing. A burst signal is added on the luminance signal and the color difference TDM signal as a time base information. The color difference TDM signal is recorded on an inner area of a disc. The luminance signal which has a wide signal band is recorded on an outer area of a disc which has a good frequency response characteristic. By separate recording of the two kinds of signals, a high resolution is obtained.
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