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:
Nov. 12, 2013
Filed:
Sep. 21, 2011
Chien-hung Yeh, Hsinchu, TW;
Chi-wai Chow, Hsinchu, TW;
Chien-Hung Yeh, Hsinchu, TW;
Chi-Wai Chow, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A fiber sensing system is provided, including a plurality of ring structures, an optical coupler and a switching unit. Each of the ring structures has at least one fiber sensor to receive and reflect a light source signal. The optical coupler is directly connected to the ring structures thereby injecting the light source signal into the ring structures to form a plurality of loops. The switching unit is disposed in a central office having two output terminals coupled to the ring structure respectively by the optical coupler, thereby forming a first path and a second path in the loops, such that the light source signal is injected into the first path and the second path sequentially by the switching unit.