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:
Jun. 16, 2026
Filed:
Sep. 19, 2024
Nec Laboratories America, Inc., Princeton, NJ (US);
NEC Corporation, Tokyo, JP;
Abstract
Disclosed is a DFOS placement procedure for multi-channel sensors we call 'modified Explore aNd Pick' (mEnP) procedure, which helps network carriers deploy new types of DFOS sensors (e.g., each DFOS sensor is associated with multiple sensing fiber routes/channels) to cover/sense entire network infrastructures with a minimum number of DFOS sensors while advantageously providing network carriers 1) locations where to deploy DFOS sensors and, (2) how to establish sensing fiber routes/channels from the deployed sensors. Our inventive procedure includes two sub-procedures. The first sub-procedure adopts a modified route exploration method to obtain a set S that contains all the possible sensor placements and the corresponding sensing fiber routes/channels at each node in the given network infrastructure. A second sub-procedure applies a modified greedy set cover method to find the minimum subset from S that can cover all the network links in the given network infrastructure.