Method and apparatus for recording digital signals

Details Method and apparatus for recording digital signals Method and apparatus for recording digital signals

1985-01-24

1987-07-21

Smith, Jerry

Excavating

371 47, 360 32, G06F 1110

Patent

active

046823328

ABSTRACT:
Error detection/correction codes appended to a recording signal for a PCM recorder are so arranged as to ensure detection and/or correction of a dropout or error of a data block address in the reproduction of the recording signal. In recording digital signals on a recording medium, the digital signals are formatted in n-word blocks, each block further including a sync signal for providing a reference timing for the reproduction of the signal, control data related to the digital signals, a data block address for identifying the block of n-words, an error detection code for detecting an error in the control data and the block address, and an error detection/correction code for error detection and/or correction for the block address and the n-words. A recording system includes an error detection/correction code generating circuit which generates error detection/correction codes using a Reed Solomon code or b-adjacent code. The generated error detection/correction codes are combined by a multiplexer so that a recording signal is arranged, and recorded on the recording medium.

REFERENCES:
patent: 3753228 (1973-08-01), Nickolas
patent: 4208650 (1980-06-01), Horn
patent: 4282551 (1981-08-01), Kanazawa
patent: 4447902 (1984-05-01), Wilkinson
patent: 4453250 (1984-06-01), Moshimi
patent: 4516163 (1985-05-01), Masuda
Edward R. Reins "Error-Free Digital Communication System", Navy Tech. Cat. No. 0781, 9/1980, pp. 15-22.

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