Invention Grant
- Patent Title: Method and apparatus for detecting a disturbance in a medium
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Application No.: US15673852Application Date: 2017-08-10
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Publication No.: US10454573B2Publication Date: 2019-10-22
- Inventor: Justin Hayward , Andrew B. Lewis , Stuart Russell
- Applicant: AT&T Intellectual Property II, L.P.
- Applicant Address: US GA Atlanta
- Assignee: AT&T Intellectual Property II, L.P.
- Current Assignee: AT&T Intellectual Property II, L.P.
- Current Assignee Address: US GA Atlanta
- Agency: Chiesa Shahinian & Giantomasi PC
- Priority: GB0620257.6 20061013
- Main IPC: H04B10/071
- IPC: H04B10/071 ; G01D5/353 ; G01M11/00

Abstract:
An improved technique for acoustic sensing involves, in one embodiment, launching into a medium, a plurality of groups of pulse-modulated electromagnetic-waves. The frequency of electromagnetic waves in a pulse within a group differs from the frequency of the electromagnetic waves in another pulse within the group. The energy scattered by the medium is detected and, in one embodiment, may be used to determine a characteristic of the environment of the medium. For example, if the medium is a buried optical fiber into which light pulses have been launched in accordance with the invention, the presence of acoustic waves within the region of the buried fiber can be detected.
Public/Granted literature
- US20170366257A1 METHOD AND APPARATUS FOR ACOUSTIC SENSING USING MULTIPLE OPTICAL PULSES Public/Granted day:2017-12-21
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