Invention Grant
US07817512B1 Method and apparatus to correct wobble phase slip in optical recorders 有权
纠正光记录仪摆动相位滑移的方法和装置

Method and apparatus to correct wobble phase slip in optical recorders
Abstract:
The present disclosure can provide a method and an apparatus to correct wobble phase slip in an optical disc recording system during recording. The method of correcting a phase slip can include receiving a wobble signal of a first frequency, sampling the wobble signal to generate a sampled wobble signal, where the wobble signal is sampled at a second frequency that corresponds to a frequency of a sampling signal, comparing a phase of the sampled wobble signal with a phase of a controlled signal to generate a phase error, modifying the phase error by adding a phase bias, and adjusting the second frequency based on the modified phase error to reduce a magnitude of the modified phase error.
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