Apparatus for digitally recording time-multiplexed digital infor

Details Apparatus for digitally recording time-multiplexed digital infor Apparatus for digitally recording time-multiplexed digital infor

1991-04-29

1993-10-12

Mis, David

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

360 61, G11B 509

Patent

active

052531236

ABSTRACT:
A digital signal processing apparatus adapted for use in a digital video tape recorder or the like. The apparatus includes a digital multiplexer for combing an input digital information signal and an input digital pilot signal with each other on a predetermined time basis so as to produce a composite recording signal; and a variable gain amplifier supplied with the composite recording signal of the digital multiplexer for amplifying at least one of the digital information signal and the digital pilot signal in the composite recording signal to respective different levels. With a relatively simple circuit configuration and a control action which operates in a relatively straight-forward manner, a relatively high operational reliability is achieved.

REFERENCES:
patent: 4422108 (1983-12-01), Sampei et al.
patent: 4786990 (1988-11-01), Overton et al.
Patent Abstracts of Japan, vol. 13, No. 502 (P-958) (3850) Nov. 13, 1989 & JP-A-1 201 801 (Mitsubishi Electric Co.) Aug. 14, 1989.
Patent Abstracts of Japan vol. 4, No. 103 (P-20) (585) Jul. 23, 1980 & JP-A-55 062 509 (Pioneer K. K.) May 12, 1980.
Patent Abstracts of Japan vol. 12, No. 313 (P-749) (3160) Aug. 25 1988 & JP-A-63 081 603 (Matsushita Electric Ind. Co.) Apr. 12, 1988.

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