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:
May. 10, 2022
Filed:
Dec. 20, 2018
Ntt Electronics Corporation, Kanagawa, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Fumiaki Nakagawa, Kanagawa, JP;
Yasuharu Onuma, Kanagawa, JP;
Katsuichi Oyama, Kanagawa, JP;
Yasuyuki Endoh, Kanagawa, JP;
Etsushi Yamazaki, Tokyo, JP;
Yoshiaki Kisaka, Tokyo, JP;
Masahito Tomizawa, Tokyo, JP;
NTT ELECTRONICS CORPORATION, Kanagawa, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
An error correction device includes a first correction unit which performs error correction decoding of data by a repetitive operation, having a full operation state in which the error correction decoding is repeated until convergence is obtained and a save operation state in which the number of times of the repetitive operation is restricted to a predetermined number. An error information estimation unit estimates an input error rate or an output error rate of the first correction unit using a decoding result of the first correction unit, and a control unit which controls transition between the full operation state and the save operation state based on at least one piece of information of the input error rate, the output error rate, and an operation time of the first correction unit. It is thus possible to provide an error correction device that can improve a transmission characteristic while suppressing power consumption.