Recording and/or reproduction apparatus capable of retaining sta

Details Recording and/or reproduction apparatus capable of retaining sta Recording and/or reproduction apparatus capable of retaining sta

1990-10-17

1992-02-11

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

388813, G11B 19247

Patent

active

050879944

ABSTRACT:
A recording and/or reproducing apparatus in which a head is driven along a disk while the disc in rotated. A rotation speed control and a rotation phase control are provided to control the disc rotation. The apparatus is operated in a phase control mode until the phase of the disc rotation deviates from a reference phase by a predetermined amount. Then the apparatus switches to speed control a memory is used to store data concerning start up information to reduce the required amount of start up time required in future operations.

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