System for processing audio PCM digital signals

Details System for processing audio PCM digital signals System for processing audio PCM digital signals

1980-11-14

1983-09-06

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

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

360 53, G11B 500, G11B 509

Patent

active

044032633

ABSTRACT:
A processing system for reproduced audio digital signals used in an audio PCM (pulse code modulation) recording/reproducing system using a recording/reproducing apparatus such as a video tape recorder having a dropout-compensation circuit is disclosed. The reproduced signal processing system is connected to receive digital information signals reproduced through the dropout compensation circuit from a recording medium on which audio information signals are recorded in the form of digital data words and includes circuit means for detecting whether a reproduced digital signal is dropout-compensated or not and circuit means for adding an error pointer to a reproduced digital signal which is detected as being dropout-compensated.

REFERENCES:
patent: 4146099 (1979-03-01), Matsushima et al.
patent: 4224642 (1980-09-01), Mawatari et al.
patent: 4227221 (1980-10-01), Kanazawa
patent: 4238852 (1980-12-01), Iga et al.
patent: 4277807 (1981-07-01), Baldwin
patent: 4281355 (1981-07-01), Wada et al.
Patents Abstracts of Japan, vol. 3, No. 2, (E-83), Jan. 13, 1979, p. 95E83.
IBM Technical Disclosure Bulletin, vol. 17, No. 4, Sep. 1974, Marshall: "Error Correction Apparatus", pp. 974-976.

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