Information signal recording system using different compressing

Details Information signal recording system using different compressing Information signal recording system using different compressing

1995-02-27

1996-07-09

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Manual input recording

360 22, 358335, 358310, H04N 578

Patent

active

055350640

ABSTRACT:
An information signal recording system arranged to divide original information signals into signal groups, each bearing a predetermined amount of information, to have a plurality of compressing modes for different information compressing ratios and to compress the information signals of each group in one of the different compressing ratios in recording these signals on a tape-shaped magnetic recording medium comprises first compressed information signal forming assembly which operates on all these groups to form and produce a first compressed information signal consisting of only the information signals of a specific part of each of these groups; second compressed information signal forming assembly which operates on some of these groups to form and produce a second compressed information signal consisting of information signals of each groups excluding the information signals of the specific part; a magnetic head which records signals on the tape-shaped magnetic recording medium by tracing the medium in a direction of crossing the longitudinal direction of the medium; and supply assembly for supplying the magnetic head with the first and second compressed information signals by switching them from one over to the other at every half of the medium tracing period of the magnetic head.

REFERENCES:
patent: 4104683 (1978-08-01), Granger
patent: 4496995 (1985-01-01), Colles et al.
patent: 4611250 (1986-09-01), Yoshinaka et al.
patent: 4685002 (1987-08-01), Powers
patent: 5198940 (1993-03-01), Nagasawa et al.

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