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:
Feb. 11, 2014
Filed:
Apr. 02, 2012
Yeong-luh Ueng, Hsinchu, TW;
Chung-jay Yang, Hsinchu, TW;
Chen-yap Leong, Hsinchu, TW;
Kuo-hsuan Liao, Hsinchu, TW;
Yeong-Luh Ueng, Hsinchu, TW;
Chung-Jay Yang, Hsinchu, TW;
Chen-Yap Leong, Hsinchu, TW;
Kuo-Hsuan Liao, Hsinchu, TW;
National Tsing Hua University, Hsinchu, TW;
Abstract
A non-binary quasi-cyclic (QC) low-density parity-check (LDPC) code decoding device comprises a first barrel-shifter, a routing network and a second barrel-shifter. The first barrel-shifter uses a constraint h'v′+h″v″=hv to shift q−1 elements of an input by jpositions to produce first temporary elements. The routing network connects to the first barrel-shifter, permutes the first temporary elements to produce second temporary elements if v′ of the constraint is not zero and designates the first temporary elements as the second temporary elements if v′ of the constraint is zero. The second barrel-shifter connects to the routing network and uses the constraint h′v′+h″v″=hv to shift q−1 elements of the second temporary elements by ipositions. A non-binary QC-LDPC decoding method is also disclosed.