发明授权
- 专利标题: Time base correction apparatus
- 专利标题(中): 时基校正装置
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申请号: US444038申请日: 1982-11-23
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公开(公告)号: US4544957A公开(公告)日: 1985-10-01
- 发明人: Mitsuro Moriya , Makoto Ichinose
- 申请人: Mitsuro Moriya , Makoto Ichinose
- 申请人地址: JPX Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX56-188776 19811124; JPX57-51741 19820329
- 主分类号: G11B7/08
- IPC分类号: G11B7/08 ; G11B19/20 ; G11B21/03 ; H04N5/95 ; H04N5/76
摘要:
A time base correction apparatus is provided for use with a system for reproducing signals recorded on a recording medium. A first drive unit which rotates the recording medium is driven by a first control unit which receives a reference signal and controls the first drive unit to rotate the recording medium in phase synchronization with the reference signal. The high frequency component of the time base variation is corrected by a second drive unit which moves a transducer, which reproduces a signal from the recording medium, from one scanning position to another relative to the recording medium in a reverse direction of the signal track of the recording medium.
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