Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate
2004-11-26
2010-10-26
Agustin, Peter Vincent (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
Reexamination Certificate
active
07821893
ABSTRACT:
The present invention relates to a method for analyzing abnormal regions on an optical recording medium. The method includes the steps of:detecting the abnormal region;determining the type of the abnormal region; andmeasuring the length of the abnormal region.Before playback or recording of an optical recording medium inserted in an apparatus for reading from and/or writing to optical recording media the apparatus determines the positions, lengths and types of abnormal regions on the optical recording medium. The obtained information can then be used, for example, to avoid that during playback or recording a pickup for reading and/or recording unexpectedly encounters an abnormal region. This makes the operation of the apparatus more reliable.
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English translation of Tsuchiya et al., Japan H01-253638, published Oct. 9, 1989, translated by Schreiber Translations, Inc.
Search Report dated Feb. 2, 2005.
Huonker Michael
Mahr Peter
Schone Wiebke
Vollmer Christian
Agustin Peter Vincent
Levy Robert B.
Shedd Robert D.
Thomson Licensing
Villabon Jorge Tony
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