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:
Sep. 28, 2021
Filed:
Jun. 27, 2019
Applicant:
Nec Laboratories America, Inc., Princeton, NJ (US);
Inventors:
Junqiang Hu, Davis, CA (US);
Ting Wang, West Windsor, NJ (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01H 9/00 (2006.01);
U.S. Cl.
CPC ...
G01H 9/004 (2013.01);
Abstract
Aspects of the present disclosure describe systems, methods and structures employing two-stage detection/analysis for distributed vibration sensing (DVS) along an optical fiber in which a first stage provides pre-processed signal data and the second stage—based on the first stage result—only processes locations that have or might have vibrational activity resulting in increased sensitivity and reduced false alarms.