发明公开
- 专利标题: Video signal processing apparatus
- 专利标题(中): 视频信号处理设备
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申请号: EP84305095申请日: 1984-07-26
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公开(公告)号: EP0133026A3公开(公告)日: 1985-04-10
- 发明人: Kurashige, Masafumi , Ota, Yoshiyuki
- 申请人: SONY CORPORATION
- 专利权人: SONY CORPORATION
- 当前专利权人: SONY CORPORATION
- 优先权: JP13922683 19830729; JP13922583 19830729
- 主分类号: H04N05/21
- IPC分类号: H04N05/21
摘要:
@ The video signal processing apparatus of the present invention is comprized of a video signal dividing circuit for dividing the input video signals into N channels, and a signal combining circuit for combining these N-channel signals into the original unitary channel signals. There is disclosed an appararus for dividing video signals, wherein, in the process of dividing input video signals into N-channel signals, the input video signals are written into a memory while write address control is performed in dependence upon clock signals of the input video signals. These N-channel signals represent N signal subsections divided from a section corresponding to a predetermined unit time duration of the input video signals. Signals are read out from these subsections starting from the foremost data of each said subsection as read-out address control cycles sequentially through these subsections. N latch circuits are used for sequentially latching signals read out from the memory with the aid of N latch pulses each having a frequency equal to 1/N times the clock signal frequency and phase-shifted relative to one another by a duration equal to the clock signal period. The output signals from the N latch signals are taken as said N-channel signals. There is also disclosed a signal combining or restoration circuit, wherein, in the process of effecting image processing of said N-channel signals as required, separately compressing the processed signals along time axis and recombining the resulting signals into single-channel signals, the N-channel signals are written into the memory as control cycles sequentially through the respective channels, and the N-channel signals thus written into the memory are read out in the original signal sequence.
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