Optical disc storage systems and methods utilizing frequency...

Details Optical disc storage systems and methods utilizing frequency... Optical disc storage systems and methods utilizing frequency...

2004-10-19

2009-10-06

Young, Wayne R (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S044130, C369S059220, C369S275400

Reexamination Certificate

active

07599270

ABSTRACT:
A wobble signal for an optical storage device is generated by adjusting a center frequency (ω0) of a band pass filter based on an expected frequency of the wobble signal and/or an estimated position of a pick-up apparatus and filtering an input signal corresponding to the wobble signal from the pick-up apparatus with the adjusted band pass filter to provide the wobble signal. Adjusting the center frequency (ω0) of the band pass filter may also be based on a measured phase change of the band pass filter. Systems for generating a wobble signal, wobble signal detection circuits and optical storage devices are also provided.

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