DK1312239T3 - Teknikker til undertrykkelse af interferens - Google Patents

Teknikker til undertrykkelse af interferens

Info

Publication number
DK1312239T3
DK1312239T3 DK01935234T DK01935234T DK1312239T3 DK 1312239 T3 DK1312239 T3 DK 1312239T3 DK 01935234 T DK01935234 T DK 01935234T DK 01935234 T DK01935234 T DK 01935234T DK 1312239 T3 DK1312239 T3 DK 1312239T3
Authority
DK
Denmark
Prior art keywords
techniques
suppressing interference
suppressing
interference
Prior art date
Application number
DK01935234T
Other languages
English (en)
Inventor
Michael E Lockwood
Mark Elledge
Douglas L Jones
Robert C Bilger
Albert S Feng
Charissa R Lansing
William D O'brien
Bruce C Wheeler
Chen Liu
Original Assignee
Univ Illinois
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Illinois filed Critical Univ Illinois
Application granted granted Critical
Publication of DK1312239T3 publication Critical patent/DK1312239T3/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/407—Circuits for combining signals of a plurality of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02165—Two microphones, one receiving mainly the noise signal and the other one mainly the speech signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/403—Linear arrays of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
DK01935234T 2000-05-10 2001-05-10 Teknikker til undertrykkelse af interferens DK1312239T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56843000A 2000-05-10 2000-05-10
PCT/US2001/015047 WO2001087011A2 (en) 2000-05-10 2001-05-10 Interference suppression techniques

Publications (1)

Publication Number Publication Date
DK1312239T3 true DK1312239T3 (da) 2007-04-30

Family

ID=24271254

Family Applications (1)

Application Number Title Priority Date Filing Date
DK01935234T DK1312239T3 (da) 2000-05-10 2001-05-10 Teknikker til undertrykkelse af interferens

Country Status (9)

Country Link
US (2) US7613309B2 (da)
EP (1) EP1312239B1 (da)
JP (1) JP2003533152A (da)
CN (1) CN1440628A (da)
AU (1) AU2001261344A1 (da)
CA (2) CA2685434A1 (da)
DE (1) DE60125553T2 (da)
DK (1) DK1312239T3 (da)
WO (1) WO2001087011A2 (da)

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JP2003533152A (ja) 2003-11-05
US20030138116A1 (en) 2003-07-24
CA2407855A1 (en) 2001-11-15
CA2685434A1 (en) 2001-11-15
DE60125553T2 (de) 2007-10-04
WO2001087011A2 (en) 2001-11-15
US7613309B2 (en) 2009-11-03
WO2001087011A3 (en) 2003-03-20
CA2407855C (en) 2010-02-02
EP1312239B1 (en) 2006-12-27
EP1312239A2 (en) 2003-05-21
CN1440628A (zh) 2003-09-03
AU2001261344A1 (en) 2001-11-20
DE60125553D1 (de) 2007-02-08
US20070030982A1 (en) 2007-02-08

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