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:
Dec. 14, 2004
Filed:
Nov. 15, 2000
Jia-Horng Shieh, Junghe, TW;
Acer Laboratories Inc., Taipei, TW;
Abstract
An encoding/decoding system in an optical disk storage device for performing compact disc/digital video disk (CD/DVD) encoding/decoding of data. The encoding/decoding system includes address mappers for C1, C2, CD P/Q, and DVD inner/outer codes respectively and a shareable Reel-Solomon (RS) encoder/decoder. The shareable RS encoder/decoder is capable of selectively being coupled to either one of the address mappers. When the encoding/decoding system is encoding, the shareable RS encoder/decoder employs a generation polynomial of RS code to generate a parity code of 2T symbols and output a codeword of N symbols, wherein the values of N and 2T are associated with the selected address mapper. When the encoding/decoding system is decoding, the shareable RS encoder/decoder generates a number of syndromes, S (k=0˜15 and k is a positive integer), an error-erasure locator polynomial and an error-erasure evaluator polynomial for obtaining an error value to complete the error correction, wherein a syndrome S is set to zero if k is greater than or equal to 2T.