Interference suppression techniques

Douglas L Jones; Charissa R Lansing; Bruce C Wheeler; Mark Elledge; Albert S Feng; Michael Lockwood; Chen Liu; Robert C Bilger; William D O'Brien

Interference suppression techniques

Douglas L Jones (Inventor), Charissa R Lansing (Inventor), Bruce C Wheeler (Inventor), Mark Elledge (Inventor), Albert S Feng (Inventor), Michael Lockwood (Inventor), Chen Liu (Inventor), Robert C Bilger (Inventor), William D O'Brien (Inventor)

Research output: Patent

Abstract

System (10) is disclosed including an acoustic sensor array (20) coupled to processor (42). System (10) processes inputs from array (20) to extract a desired acoustic signal through the suppression of interfering signals. The extraction/suppression is performed by modifying the array (20) inputs in the frequency domain with weights selected to minimize variance of the resulting output signal while maintaining unity gain of signals received in the direction of the desired acoustic signal. System (10) may be utilized in hearing aids, voice input devices, surveillance devices, and other applications.

Original language	English (US)
U.S. patent number	7613309
Filing date	11/7/02
State	Published - Nov 3 2009

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title = "Interference suppression techniques",

abstract = "System (10) is disclosed including an acoustic sensor array (20) coupled to processor (42). System (10) processes inputs from array (20) to extract a desired acoustic signal through the suppression of interfering signals. The extraction/suppression is performed by modifying the array (20) inputs in the frequency domain with weights selected to minimize variance of the resulting output signal while maintaining unity gain of signals received in the direction of the desired acoustic signal. System (10) may be utilized in hearing aids, voice input devices, surveillance devices, and other applications.",

author = "Jones, {Douglas L} and Lansing, {Charissa R} and Wheeler, {Bruce C} and Mark Elledge and Feng, {Albert S} and Michael Lockwood and Chen Liu and Bilger, {Robert C} and O'Brien, {William D}",

note = "GOVERNMENT RIGHTS The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by DARPA Contract Number ARMY SUNY240-6762A and National Institutes of Health Contract Number R21DC04840.; 7613309",

year = "2009",

month = nov,

day = "3",

language = "English (US)",

type = "Patent",

}

TY - PAT

T1 - Interference suppression techniques

AU - Jones, Douglas L

AU - Lansing, Charissa R

AU - Wheeler, Bruce C

AU - Elledge, Mark

AU - Feng, Albert S

AU - Lockwood, Michael

AU - Liu, Chen

AU - Bilger, Robert C

AU - O'Brien, William D

N1 - GOVERNMENT RIGHTS The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by DARPA Contract Number ARMY SUNY240-6762A and National Institutes of Health Contract Number R21DC04840.

PY - 2009/11/3

Y1 - 2009/11/3

N2 - System (10) is disclosed including an acoustic sensor array (20) coupled to processor (42). System (10) processes inputs from array (20) to extract a desired acoustic signal through the suppression of interfering signals. The extraction/suppression is performed by modifying the array (20) inputs in the frequency domain with weights selected to minimize variance of the resulting output signal while maintaining unity gain of signals received in the direction of the desired acoustic signal. System (10) may be utilized in hearing aids, voice input devices, surveillance devices, and other applications.

AB - System (10) is disclosed including an acoustic sensor array (20) coupled to processor (42). System (10) processes inputs from array (20) to extract a desired acoustic signal through the suppression of interfering signals. The extraction/suppression is performed by modifying the array (20) inputs in the frequency domain with weights selected to minimize variance of the resulting output signal while maintaining unity gain of signals received in the direction of the desired acoustic signal. System (10) may be utilized in hearing aids, voice input devices, surveillance devices, and other applications.

M3 - Patent

M1 - 7613309

Y2 - 2002/11/07

ER -

Interference suppression techniques

Abstract

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