Control and information disk for disk recording system

Details Control and information disk for disk recording system Control and information disk for disk recording system

1992-09-14

1994-06-07

McElheny, Jr., Donald E.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4427, 369 49, G11B 700

Patent

active

053196228

ABSTRACT:
A system and method for recording on optical and electromagnetic disk media utilize a control disk for formatting and providing speed control of the recorded information. Optionally, the control disk may provide operating, diagnostic, and a wide variety of other information to the recording system or user. A recording disk and the control disk are rotated synchronously with each other while the control disk is scanned by a read head which derives formatting, speed control, and other information. A write head on the recording disk is then manipulated in a pattern determined by the formatting and speed control information. Typically, the read head and write head are mechanically coupled so that the write head is positioned as the read head follows a tracking information on a read surface of the control disk to write a tracking pattern to a write surface of the recording disk in a recordable region between a start-of-disk pattern and an end-of-disk pattern.

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