Apparatus for recording/reproducing a digital audio signal with

Details Apparatus for recording/reproducing a digital audio signal with Apparatus for recording/reproducing a digital audio signal with

1988-09-26

1991-11-26

Envall, Jr., Roy N.

Dynamic magnetic information storage or retrieval

Converting an analog signal to digital form for recording;...

358339, 360 191, 360 362, H04N 5782

Patent

active

050687522

ABSTRACT:
A signal processing system for absorbing asynchronism between a video signal and an audio signal which is caused when a PCM audio signal is to be recorded together with the video signal on a helical scan-type tape recorder. When the video signal and the audio signal are recorded on the same track, a recording band width of the audio signal should be narrow. A sample pattern is provided which assures rapid pull-in for both data clock reproduction and carrier reproduction, when the audio signal is modulated by QPSK or when Q-QPSK modulation is used.

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Patent Abstracts of Japan, vol. 10, No. 32 (E-379) [2089], 2/7/86, & JP60-189326.

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