Methods and apparatus for synchronizing read out of data from mu

Details Methods and apparatus for synchronizing read out of data from mu Methods and apparatus for synchronizing read out of data from mu

1998-01-27

2000-02-22

Huber, Paul W.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369 95, 369124, G11B 509, G11B 374, G11B 700

Patent

active

060288272

ABSTRACT:
Methods and apparatus are provided for simultaneously reading data from multiple tracks of an optical disk at a high rate. Circuitry is provided for generating a reference data clock independently of spindle motor speed and the spindle motor speed servo circuitry. Circuitry is also provided for deriving individual track data clocks from the reference data clock, while correcting for phase and frequency errors resulting from variations in the linear velocity of the tracks being read, depending upon the radial position of the tracks.

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