发明名称 |
Video insert editing with control signals derived off tape or from the insert |
摘要 |
A magnetic recording and reproducing apparatus comprises first through fourth circuits. The first circuit edits and records a new video signal within a predetermined section of a magnetic tape which is pre-recorded with a video signal and a control signal on respective video and control tracks. The second circuit produces a new control signal having a frequency identical to that of the pre-recorded control signal. The third circuit reproduces the pre-recorded control signal from the tape while the first circuit is operating. The fourth circuit detects the existence of a control signal reproduced by the third circuit, and supplies the new control signal which is produced by the second circuit to the third circuit when the non-existence of the reproduced control signal is detected, so as to record the new control signal on the control track of the tape.
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申请公布号 |
US4510535(A) |
申请公布日期 |
1985.04.09 |
申请号 |
US19820449828 |
申请日期 |
1982.12.14 |
申请人 |
VICTOR COMPANY OF JAPAN, LTD. |
发明人 |
TOKUMITSU, JUNSUKE |
分类号 |
G11B15/087;G11B15/02;G11B15/467;G11B27/02;G11B27/024;G11B27/029;G11B27/32;G11B27/34;G11B27/36;(IPC1-7):H04N5/782 |
主分类号 |
G11B15/087 |
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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