发明名称 |
Automatic track following feature for helical video recorder |
摘要 |
An automatic track following feature for use with a helical video recorder is disclosed which enables reproduction of video fields at normal speeds, fast and slow forward and reverse speeds, and at stop motion, wherein a mechanism for moving a playback head transverse to the helical tracks on a magnetic tape is provided in order to enable the head to remain centered on the track regardless of tape speeds and directions of movement. A head position control signal is generated for driving the head positioning mechanism based on a comparison of a signal based on the instantaneous tape speed with a reference speed indicating signal.
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申请公布号 |
US4426665(A) |
申请公布日期 |
1984.01.17 |
申请号 |
US19820445701 |
申请日期 |
1982.12.01 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
BRADFORD, ROBERT S.;BROOKHART, MARSHALL R.;DY, BENNETT G. |
分类号 |
G11B5/588;H04N5/783;(IPC1-7):H04N5/78 |
主分类号 |
G11B5/588 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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