PCM Audio reproducing system

Details PCM Audio reproducing system PCM Audio reproducing system

1979-09-06

1982-10-26

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Record editing

360 32, G11B 2702, G11B 500

Patent

active

043565174

ABSTRACT:
Upon reproducing a PCM audio signal, the disclosed weighting circuit gradually changes the weight or value of signal bits constituting the PCM audio signal in accordance with a command signal so as to vary gradually a level of a reproduced analog audio signal corresponding to the PCM audio signal.

REFERENCES:
patent: 3932886 (1976-01-01), Olms
patent: 4174652 (1979-11-01), Campbell
patent: 4187544 (1980-02-01), Larner
"Tape Recorder", M. Abe et al., Nippon Shuppan Hoso Kyokai, 1969, p. 199.
"PCM for High-Quality Sound Signal Distribution: Protection Against Digital Errors", BBC Research Dept., Report #1972/18, May 1972.
"PCM Modulation Recording System", Iwamura et al., Journal of the Audio Eng'r. Soc., Sep. 73, vol. 21, #7, pp. 535-541.

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