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United States Utility Patents
6,567,350 - 6,567,359

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NumberTitle
6,567,350 Method for adjusting control operation in an optical disc recording device
6,567,351 Playback device with predetermined, random function for selection of data groups
6,567,352 Objective lens driving device and optical disc apparatus using the same
6,567,353 Optical head with light receiving element surfaces divided into at least three light receiving areas
6,567,354 Optical pickup device minimizing an undesirable astigmatism
6,567,355 Optical detector, optical pickup and optical information reproducing apparatus using optical pickup
6,567,356 WITHDRAWN
6,567,357 Optical disk apparatus
6,567,358 Information recording/reproducing apparatus
6,567,359 Recording and playback of multi-channel digital audio having different resolutions for different channels



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