The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2008
Filed:
Dec. 20, 2004
Hao-cheng Chen, Taipei Hsien, TW;
Wen-yi Wu, Hsin-Chu Hsien, TW;
Chun-nan Chen, Taipei, TW;
Mediatek Incorporation, Hsin-Chu Hsien, TW;
Abstract
An apparatus for detecting position of blank areas for an optical disc in an optical disc drive according to a wobble signal and a blank signal includes an address decoder for generating a physical address value according to the wobble signal; a counting device coupled to the address decoder for generating a count value according to the wobble signal; and a decision circuit coupled to the counting device for determining whether the count value is within a predetermined range when the edge of the blank signal occurs. If the count value is within the predetermined range when the blank edge occurs, the decision circuit generates a position value corresponding to a blank area of the optical disc.