US Patent Issued to PRISMA PHOTONICS on Feb. 25 for "Real-time quasi-coherent detection and fiber sensing using multi-frequency signals" (Israeli Inventors)

ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,235,141, issued on Feb. 25, was assigned to PRISMA PHOTONICS LTD (Tel Aviv, Israel).

"Real-time quasi-coherent detection and fiber sensing using multi-frequency signals" was invented by Eitan Rowen (Modi'in, Israel), Niv Gorodesky (Rehovot, Israel) and Eran Inbar (Tel Aviv, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "Distributed acoustic sensing (DAS) system for quasi-coherent detection of at least one multi-frequency signal over an optical fiber, including a multi-frequency pulse generator, a circulator, a coherent detector and a processor, the pulse generator for generating at least one multi-frequency pulse train including at least two puls...