Optical disc drive and method of examining the optical disc...

Details Optical disc drive and method of examining the optical disc... Optical disc drive and method of examining the optical disc...

2011-07-12

2011-07-12

Edun, Muhammad N (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S059190, C369S059230, C369S059250, C369S047220

Reissue Patent

active

RE042535

ABSTRACT:
An optical disc drive for recording and playing back a recordable-type optical disc includes a driving mechanism for rotating the optical disc, an optical pick-up for writing and reading data to and from the optical disc, signal processor for processing signals read out from the optical disc by means of the optical pick-up, a CPU for controlling the driving mechanism, the optical pick-up and the signal processor. The optical disc drive is further equipped with a detecting device for detecting an ATIP error and a counter for counting the number of ATIP errors. The optical disc drive counts the number of ATIP errors caused in a predetermined time based on the synchronization signal (SUBCODE-SYNC) produced by a clock provided in the optical disc drive after the synchronization signal (SUBCODE-SYNC) has been synchronized with a synchronization signal (ATIP-SYNC) obtained from a reference optical disc. The recording performance of the optical disc is examined based on the counted number of the detected ATIP errors.

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patent: 05-0189245 (1995-01-01), None
patent: 07-280767 (1997-05-01), None
patent: WO 96/24130 (1996-08-01), None

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