发明授权
US4768109A Video signal recording and/or reproducing apparatus 失效
视频信号记录和/或再现装置

  • 专利标题: Video signal recording and/or reproducing apparatus
  • 专利标题(中): 视频信号记录和/或再现装置
  • 申请号: US684863
    申请日: 1984-12-21
  • 公开(公告)号: US4768109A
    公开(公告)日: 1988-08-30
  • 发明人: Yasutoshi Matsuo
  • 申请人: Yasutoshi Matsuo
  • 申请人地址: JPX Yokohama
  • 专利权人: Victor Company of Japan, Ltd.
  • 当前专利权人: Victor Company of Japan, Ltd.
  • 当前专利权人地址: JPX Yokohama
  • 优先权: JPX58-251843 19831224; JPX58-251844 19831224; JPX58-247455 19831228
  • 主分类号: H04N9/797
  • IPC分类号: H04N9/797 H04N5/92
Video signal recording and/or reproducing apparatus
摘要:
A video signal recording apparatus comprises a sampling circuit for sampling an input video signal by a signal having a predetermined frequency f.sub.s, a circuit for obtaining a multiplexed signal by multiplexing a reference burst signal to the output sampled signal of the sampling circuit, and a circuit for recording the multiplexed signal on a recording medium. A video signal recording and reproducing apparatus comprises in addition to the constituting elements of the recording apparatus, a circuit for reproducing the recorded multiplexed signal from the recording medium, a circuit for obtaining from the reproduced multiplexed signal first and second reproduced sampled signals having a relative time difference of one horizontal scanning period, a circuit for generating first and second sampling pulses having the same frequency f.sub.s and having phases which mutually differ by 180.degree., a circuit for re-sampling the first and second reproduced sampled signals by the respective first and second sampling pulses so as to obtain first and second re-sampled signals, and a circuit for at least adding the first and second re-sampled signals so as to obtain a reproduced video signal.
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