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:
Oct. 16, 2018
Filed:
Nov. 07, 2014
Mitsubishi Electric Corporation, Tokyo, JP;
Kenya Sugihara, Tokyo, JP;
Wataru Matsumoto, Tokyo, JP;
Hideo Yoshida, Tokyo, JP;
Yoshikuni Miyata, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
An error correction decoding apparatus includes column operatorsand row operatorstoprovided respectively in accordance with the columns and rows of a check matrix of an LDPC code. A received LLR (log-likelihood ratio) of a received sequence is input into the column operatorstogether with row LLRs from the row operatorsto, whereupon the column operatorscalculate a total value zof the received LLR of the received sequence and the row LLRs from the row operatorsto. The row operatorstohold operation results relating to row LLRs or column LLRs obtained during a previous operation, calculate column LLRs using the total value input from the column operatorsand the held operation results, calculate row LLRs from the calculated column LLRs, and output the calculated row LLRs to the column operators