PCM Recording and reproducing apparatus

Details PCM Recording and reproducing apparatus PCM Recording and reproducing apparatus

1980-04-09

1981-08-04

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

042825512

ABSTRACT:
When error detection codes are added to a sampled signal word which is a digital version of audio information and a control signal which is a digital version of system control information to construct a data frame and a control signal frame, respectively, the error detection code for the data frame is generated under an arithmetic condition different from that for the control signal frame. In this manner, frame identification information is superimposed on the error detection codes. In a reproducing unit, the error detection codes containing the identification information are used to check an error in the reproduced sampled signal word and control signal and to effect the discrimination between the data frame and the control signal frame.

REFERENCES:
patent: 3832684 (1974-08-01), Besenfelder
patent: 4202018 (1980-05-01), Stockham, Jr.
patent: 4211997 (1980-07-01), Rudnick et al.

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