Wobble information detection method and wobble information...

Details Wobble information detection method and wobble information... Wobble information detection method and wobble information...

2007-03-20

2007-03-20

Psitos, A M (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S047480, C369S053340

Reexamination Certificate

active

10821835

ABSTRACT:
A method and apparatus for detecting information recorded as a phase-modulated wobble along a track of an optical disk, whereby a reference phase section is recorded with wobble having a predetermined reference phase and whereby respective polarities of phase integration values obtained by synchronous detection of phase-modulated unit sections following the reference phase section, in a playback wobble signal, are compared with the polarity of a reference phase integration value obtained for the reference phase section, to thereby detect respective bit states expressed by the phase-modulated unit sections.

REFERENCES:
patent: 6208614 (2001-03-01), Kim
patent: 2001-209937 (2001-08-01), None
patent: 2002-208231 (2002-07-01), None

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