PCM Tape recording and reproducing apparatus having a dropout-im

Details PCM Tape recording and reproducing apparatus having a dropout-im PCM Tape recording and reproducing apparatus having a dropout-im

1982-09-09

1985-09-03

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

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

360 48, G11B 500, G11B 509

Patent

active

045396051

ABSTRACT:
A PCM tape recording and reproducing apparatus for recording and reproducing an audio signal by using multitrack heads, comprises a frame interleaving device with a high dropout immunity function. The frame interleaving device comprises a distributor for successively distributing continuous interleaved input data between tracks, wihtin a multiplicity of tracks formed by splitting a magnetic tape, at a spacing of at least one track so that said continuous interleaved input data will not be shared between two continuous tracks in the same recording and reproducing direction, a data framing circuit for forming a frame out of data to be distributed to each of said tracks and for applying said frame with a synchronization signal at the top of said frame and with an error detection code at the end of said frame, and a delay circuit for delaying data associated with a track by one frame or more with respect to data associated with a neighboring track in the same recording and reproducing as said track.

REFERENCES:
patent: 4277807 (1981-07-01), Baldwin
patent: 4403261 (1983-09-01), Tanaka
patent: 4403263 (1983-09-01), Kageyame et al.
patent: 4433415 (1984-02-01), Kojima
"Twined Interleaving of Data on a Multitrack Storage Medium", by A. M. Patel, IBM, TDB, vol. 18, #8, Jan. 76.

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