Method and apparatus for detecting a disturbance in a medium

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United States of America Patent

PATENT NO 10454573
APP PUB NO 20170366257A1
SERIAL NO

15673852

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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Patent Owner(s)

  • AT&T INTELLECTUAL PROPERTY II, L.P.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayward, Justin Southampton, GB 7 270
Lewis, Andrew B Bristol, GB 15 495
Russell, Stuart Southampton, GB 25 428

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