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:
Aug. 11, 2020
Filed:
Jun. 20, 2017
Applicant:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Inventors:
Assignee:
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/61 (2013.01); H04L 1/00 (2006.01); H03M 13/45 (2006.01); H04B 10/07 (2013.01); H04B 10/516 (2013.01); H04L 27/00 (2006.01); H04B 10/2581 (2013.01); H03M 13/29 (2006.01);
U.S. Cl.
CPC ...
H04L 1/0045 (2013.01); H03M 13/29 (2013.01); H03M 13/45 (2013.01); H04B 10/07 (2013.01); H04B 10/2581 (2013.01); H04B 10/516 (2013.01); H04B 10/616 (2013.01); H04L 1/0041 (2013.01); H04L 27/00 (2013.01);
Abstract
An optical receiver includes: a first calculation unit that obtains a log likelihood ratio for each M-dimension (M is a natural number), based on a received signal; and a second calculation unit that obtains a log likelihood ratio of an N dimensional symbol (N is a natural number), based on the log likelihood ratio for each M-dimension.