发明名称 |
Encoding of audio and digital signals in a video signal |
摘要 |
Audio signals and digital commands are encoded into a standard raster format television signal recorded on a casette for play by a home video cassette unit. The audio signals are encoded in the displayable video as modulated carrier pulses separated by return to median intervals with the audio waveforms being tapered near discontinuities. The digital commands are recorded as binary level pulses, one such pulse occupying substantially an entire video line to permit accurate decoding.
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申请公布号 |
US4875096(A) |
申请公布日期 |
1989.10.17 |
申请号 |
US19890898268 |
申请日期 |
1989.08.20 |
申请人 |
SMITH ENGINEERING |
发明人 |
BAER, RALPH H.;CURRAN, KENNETH J.;SMITH, III, JAY |
分类号 |
H04N5/775;H04N7/04;H04N7/081 |
主分类号 |
H04N5/775 |
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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