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:
Nov. 07, 2006
Filed:
Mar. 24, 2003
Wei-hung Huang, Hsin Chu, TW;
Li-lien Lin, Hsin Chu, TW;
Wei-Hung Huang, Hsin Chu, TW;
Li-Lien Lin, Hsin Chu, TW;
Media Tek Inc., Hsin Chu, TW;
Abstract
A check system and method for checking EDC of a DVD sector without prior descrambling the sector. In the EDC check method, after the sector is received, a check value corresponding to a sector identification (ID) of the sector is generated. Meanwhile, an EDC value of the sector is calculated directly without prior descrambling the sector. Finally, the EDC value and the check value are compared. If the EDC value equals to the check value, a sector-correct signal is outputted; otherwise, a sector-error signal is outputted. Because the EDC check method and system of the invention skip the prior data descrambling step, the processing speed can be improved and the hardware resources may be more-efficiently used.