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:
Mar. 19, 2013
Filed:
Nov. 12, 2009
Cheng-kang Wang, Taichung, TW;
Chia-chun Hung, Taipei County, TW;
Cheng-Kang Wang, Taichung, TW;
Chia-Chun Hung, Taipei County, TW;
Realtek Semiconductor Corp., Hsinchu, TW;
Abstract
A parity-check-code decoder includes: a verifying device that multiplies (N) bit nodes by a matrix provided with (N) columns so as to obtain a plurality of check nodes; a reliability generator that generates a reliability index for each of the bit nodes in accordance with a channel; a reliability-updating device that uses the bit nodes and the check nodes to exchange message iteratively, and following each iteration, updates (N) exchange results corresponding to the (N) columns; and a recording controller that includes a separator, a quantizing determiner and a quantizer. The separator divides the matrix into at least one column group based on the characterizing signals. The quantizing determiner determines a shift signal for each column group based on the characterizing signals. The quantizer quantizes the characterizing signals according to the shift signals for subsequent output.