Amplifying device

Details Amplifying device Amplifying device

1988-11-07

1991-01-22

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Signal switching

360 66, G11B 1514, G11B 503

Patent

active

049875019

ABSTRACT:
An amplifying device for applying a DC bias current and a signal current to a load circuit includes a current supplying element for supplying a current to the load circuit, a control signal applying circuit for applying to the current supplying element a DC bias control signal defining the DC bias current supplied from the currenting supply element, and a signal applying circuit for applying to the current supplying element an electrical signal defining the signal current, wherein the rising and falling of the DC bias control signal are provided with given time constants.

REFERENCES:
patent: 4428008 (1984-01-01), Fawkes
patent: 4438466 (1984-03-01), Fawkes et al.
patent: 4580177 (1986-04-01), Iro
patent: 4665446 (1987-05-01), Takayama et al.
patent: 4743985 (1988-05-01), Shibata et al.
Application Ser. No. 6/892,584 "Recording or Reproducing Apparatus", filed 8/1/86.
Application Ser. No. 7/16,209 "Recording and Reproducing Apparatus", filed 2/19/87.

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