Information recording-reproducing head driving circuit

Details Information recording-reproducing head driving circuit Information recording-reproducing head driving circuit

1991-05-30

1993-02-02

Young, Wayne R.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 32, 360 7807, 235476, G11B 7085

Patent

active

051843390

ABSTRACT:
An information recording-reproducing head driving circuit for moving an information recording-reproducing head from the current position on a recording medium to a desired position while velocity-controlling the head includes a pulse motor for moving the information recording-reproducing head relative to the recording medium, a timer for counting down a count value set to take the driving timing of the pulse motor, and controller for calculating the count value on the basis of a predetermined time table and setting the count value in the timer, and generating a driving pulse to the pulse motor when the timer has counted down the count value. The controller substracts a desired value extracted from the time table from the count value set in the timer the last time to thereby accomplish the calculation of a new count value.

REFERENCES:
patent: 4355273 (1982-10-01), Du Vall
patent: 5018125 (1991-05-01), Uchikoshi et al.
patent: 5020044 (1991-05-01), Shimonou
patent: 5083301 (1992-01-01), Matoba et al.
patent: 5130964 (1992-07-01), Ito

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