Method and apparatus for fiber optic signature recognition
US8013987B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2010 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Aug 13, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/85
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus is disclosed for use in fiber optic signature recognition to analyze buried optical fiber to identify a non-threat area along a fiber route and to discontinue monitoring for disturbances along that area of the cable route. The technique includes determining the location of the zone of non-threatening disturbances from comparing an optical signal to the representation of a prearranged optical signal identified as friendly. Once a zone of non-threatening disturbances is identified, all subsequent disturbances in that zone are considered friendly. Cable monitoring is discontinued in the identified zone of non-threatening disturbances so as to avoid monitoring fiber cable when permitted workers are in the area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.