Digital information reproducing apparatus using rotary...

Details Digital information reproducing apparatus using rotary... Digital information reproducing apparatus using rotary...

2005-03-15

2005-03-15

Faber, Alan T. (Department: 2651)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

C360S067000

Reexamination Certificate

active

06867938

ABSTRACT:
A digital information reproducing apparatus using rotary heads that reproduces digital information signals recorded on a magnetic tape using magneto resistive heads installed on a rotary drum. The apparatus includes, in the fixed side of the apparatus, a magnetic tape checking circuit that checks the type of the magnetic tape; and a control signal generation circuit that generates a control signal for controlling the gain of a reproduction amplifier circuit; and on the rotary drum, a decoder circuit that identifies the control signal transmitted from the control signal generation circuit. The control signal generation circuit generates the control signal based on a checking result given by the magnetic tape checking circuit, and the decoder circuit identifies the transmitted control signal to control the gain of the reproduction amplifier circuit.

REFERENCES:
patent: 6243240 (2001-06-01), Ozue et al.
patent: 6717761 (2004-04-01), Yamazaki et al.
patent: 10-177924 (1998-06-01), None

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