发明名称 |
Slow down color processor for video disc mastering using a special mode VTR |
摘要 |
Selected fields of a redundant field slow motion video tape reproduced video signal are stored in a memory at a given clock rate and recovered at a lower clock rate that is inversely proportional to the number of times each field is repeated so as to produce a non-redundant video signal of reduced bandwidth. An audio signal is simultaneously reproduced from the tape at a rate less than that at which it was originally recorded and combined with the recovered video signal to produce a composite audio-video signal of reduced bandwidth possessing the full informational content of the original audio and video signals. The composite signal is suitable for application to the cutterhead of a video disc mastering lathe operating at reduced turntable speed whereby full bandwidth master recordings may be made with a cutterhead of lesser bandwidth.
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申请公布号 |
US4277796(A) |
申请公布日期 |
1981.07.07 |
申请号 |
US19790087452 |
申请日期 |
1979.10.22 |
申请人 |
RCA CORPORATION |
发明人 |
ROSS, MICHAEL D. |
分类号 |
H04N5/91;G11B3/70;G11B5/027;G11B27/00;H04N5/917;H04N5/92;H04N9/85;(IPC1-7):H04N5/79;G11B11/00;G11B19/28 |
主分类号 |
H04N5/91 |
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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