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. 30, 2023
Filed:
Mar. 20, 2022
Applicant:
Nec Laboratories America, Inc., Princeton, NJ (US);
Inventors:
Yue-Kai Huang, Princeton, NJ (US);
Junqiang Hu, Davis, CA (US);
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/07 (2013.01); H04B 10/079 (2013.01); H04B 10/294 (2013.01); H04B 10/69 (2013.01); G02B 6/02 (2006.01); G01M 11/00 (2006.01); H04B 10/071 (2013.01); H04J 14/02 (2006.01);
U.S. Cl.
CPC ...
H04B 10/07957 (2013.01); G02B 6/022 (2013.01); H04B 10/294 (2013.01); H04B 10/6932 (2013.01); G01M 11/3109 (2013.01); H04B 10/07 (2013.01); H04B 10/071 (2013.01); H04J 14/02 (2013.01);
Abstract
Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously overcome problems encountered when operating DFOS systems over operational telecommunications facilities namely, cross-phase modulation, and uneven amplitude profiles through the use of a novel constant amplitude coded DFOS employing suppressed out-of-band signaling.