Magnetic recorder/reproducer for recording digital signal on a p

Details Magnetic recorder/reproducer for recording digital signal on a p Magnetic recorder/reproducer for recording digital signal on a p

1990-03-14

1992-08-11

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

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

360 722, G11B 509

Patent

active

051385015

ABSTRACT:
A magnetic recording and reproducing apparatus for recording digital signals of a plurality of channels on tracks on magnetic recording medium and reproducing the same includes an A/D converter for converting analog video signals to digital signals, a signal dividing circuit for dividing the digital signals into first and second digital signals having first and second bit numbers for each channel, a signal permuting circuit for permuting the first and second digital signals of the same channel so as to be recorded on different tracks separately, a magnetic head for recording the permuted first and second digital signals on the different tracks and separately reproducing the same, a signal generating circuit for generating digital signals having a predetermined bit number based on the reproduced first and second digital signals, and a D/A converter for converting generated digital signals into analog signals. The externally applied digital signals are divided into signals of a higher and lower bit groups by the signal dividing circuit. The divided higher and lower bit group signals are permuted and recorded on the separate tracks. The recorded higher and lower bit group signals are separately reproduced. The separately reproduced higher and lower bit group signals are selected by the signal generating circuit, permuted once again and outputted as the original digital signals. The digital signals are converted into analog signals and supplied to other video equipments.

REFERENCES:
patent: 4704640 (1987-11-01), Okamoto et al.
patent: 4835627 (1989-05-01), Endo et al.

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