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AssigneePioneer Corporation
InventorsKiyoshi Tateishi, Ichiro Sugai
Estimating the term…
An optical disc player having an optical pickup records and retrieves information on an optical disc while the optical disc is rotating. A rotation pulse is generated each time the optical disc rotates through a prescribed angle. A rotation frequency data representing a frequency of the rotation pulse is also generated. A servo processor performs servo processing for rotation control on the optical disc in accordance with the rotation frequency data. A sampling pulse generator performs computational processing on an input data signal to generate a sampling pulse. The sampling pulse generator also corrects the rotation frequency data based on a phase error between the sampling pulse and the rotation pulse to use a corrected rotation frequency data as the input data signal. Another servo processor performs servo processing for repetitive control on the optical pickup using the sampling pulse.
A control device for an optical disc player which, while rotating an optical disc, records and reproduces information on the optical disc by using an optical pickup, the control device comprising:
A method of controlling an optical disc player having an optical pickup to record and retrieve information on an optical disc, comprising:
Dependencies are inferred from the claim text.