Method and apparatus for recording PCM signal

Details Method and apparatus for recording PCM signal Method and apparatus for recording PCM signal

1985-10-15

1987-11-03

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

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

360 48, 371 39, G11B 500, G11B 509, H03M 1300

Patent

active

047046406

ABSTRACT:
In PCM signal recording method and apparatus using rotary heads for converting two channels of autio PCM signals each consisting of 12-bit words to a data consisting of 8-bit words and recording the converted data, there is provided means for converting the PCM signals to two data each consisting of eight high order bits of each of two words of the PCM signals, and an 8-bit data consisting of the remaining four low order bits of the respective words. The converted PCM data are recorded on a record tape in a format such that PCM signals having i words/channel which are to be recorded on first and second tracks are divided into a first half and a second half, even data in the first half and odd data in the second half constitute the data to be recorded on the first track, and odd data in the first half and even data in the second half constitute the data to be recorded on the second track.

REFERENCES:
patent: 4143406 (1979-03-01), Tsuiki et al.
patent: 4224642 (1980-09-01), Mawatani et al.

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