US2008239908A1PendingUtilityA1

Method of detecting optical disk error information

Assignee: LITE ON IT CORPPriority: May 6, 2004Filed: Jun 6, 2008Published: Oct 2, 2008
Est. expiryMay 6, 2024(expired)· nominal 20-yr term from priority
Inventors:Chun-Cheng Wang
G11B 7/00375G11B 7/0956G11B 2020/10916G11B 20/18
58
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Claims

Abstract

A method of detecting optical disc error information on an optical disc, for applying in an optical disc drive, the method comprising: first, detecting whether the optical disc is blank, if not, perform the following: checking whether a seek error occurred, if yes, recording a seek error mark; while reading a data region, recording data error information, the data error information comprises an error count, and a corresponding data error location; finally, outputting the optical disk error information according to the data error information and the seek error mark.

Claims

exact text as granted — not AI-modified
1 - 4 . (canceled) 
   
   
       5 . A method of determining an optimal tilt angle for an optical pick-up head, comprising:
 determining a plurality of tilt angles, wherein the tilt angles are substantially different from one another;   reading an optical disc according to each of the tilt angles;   generating a plurality of sets of optical disc error information for each of the tilt angles; and   determining the optimal tilt angle according to the sets of optical disc error information.   
   
   
       6 . The method according to  claim 5 , wherein the optimal tilt angle is selected from the tilt angles that has least errors in the corresponding optical disc information. 
   
   
       7 . The method according to  claim 5 , wherein the step of generating a plurality of sets of optical disc error information comprises:
 while reading a data region of the optical disc, recording data error information, the data error information comprising an error count and a corresponding data error location, and   outputting the optical disc error information according to the data error information.   
   
   
       8 . The method according to  claim 7 , wherein the step of generating optical disc error information further comprises:
 determining whether a seek error occurred, if yes, recording a seek error mark; and   outputting the optical disk error information according to the seek error mark.   
   
   
       9 . The method according to  claim 5 , wherein the step of generating optical disc error information comprises:
 determining whether an address error occurred, if yes, recording an address error information, comprising an address error count and a corresponding address error location; and outputting the optical disc error information according to the address error information.

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