WO2007024958A3 - Noise mitigating microphone system and method - Google Patents

Noise mitigating microphone system and method Download PDF

Info

Publication number
WO2007024958A3
WO2007024958A3 PCT/US2006/032931 US2006032931W WO2007024958A3 WO 2007024958 A3 WO2007024958 A3 WO 2007024958A3 US 2006032931 W US2006032931 W US 2006032931W WO 2007024958 A3 WO2007024958 A3 WO 2007024958A3
Authority
WO
WIPO (PCT)
Prior art keywords
output signal
microphone system
microphone
noise mitigating
mitigating microphone
Prior art date
Application number
PCT/US2006/032931
Other languages
French (fr)
Other versions
WO2007024958A2 (en
Inventor
Jason W Weigold
Gary Elko
Kieran P Harney
Original Assignee
Analog Devices Inc
Jason W Weigold
Gary Elko
Kieran P Harney
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 Analog Devices Inc, Jason W Weigold, Gary Elko, Kieran P Harney filed Critical Analog Devices Inc
Priority to EP06802166A priority Critical patent/EP1917836B1/en
Priority to JP2008528115A priority patent/JP4864089B2/en
Priority to CN2006800310711A priority patent/CN101268714B/en
Publication of WO2007024958A2 publication Critical patent/WO2007024958A2/en
Publication of WO2007024958A3 publication Critical patent/WO2007024958A3/en

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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • H04R1/245—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges of microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6008—Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2410/00—Microphones
    • H04R2410/05—Noise reduction with a separate noise microphone

Abstract

A microphone system has a base coupled with first and second microphone apparatuses. The first microphone apparatus is capable of producing a first output signal having a noise component, while the second microphone apparatus is capable of producing a second output signal. The system also has combining logic operatively coupled with the first microphone apparatus and the second microphone apparatus. The combining logic uses the second output signal to remove at least a portion of the noise component from the first output signal.
PCT/US2006/032931 2005-08-23 2006-08-23 Noise mitigating microphone system and method WO2007024958A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06802166A EP1917836B1 (en) 2005-08-23 2006-08-23 Noise mitigating microphone system and method
JP2008528115A JP4864089B2 (en) 2005-08-23 2006-08-23 Microphone system and method for reducing noise
CN2006800310711A CN101268714B (en) 2005-08-23 2006-08-23 Noise mitigating microphone system and method

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US71051505P 2005-08-23 2005-08-23
US60/710,515 2005-08-23
US11/492,314 US8130979B2 (en) 2005-08-23 2006-07-25 Noise mitigating microphone system and method
US11/492,314 2006-07-25

Publications (2)

Publication Number Publication Date
WO2007024958A2 WO2007024958A2 (en) 2007-03-01
WO2007024958A3 true WO2007024958A3 (en) 2007-06-28

Family

ID=37772331

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/032931 WO2007024958A2 (en) 2005-08-23 2006-08-23 Noise mitigating microphone system and method

Country Status (5)

Country Link
US (1) US8130979B2 (en)
EP (1) EP1917836B1 (en)
JP (1) JP4864089B2 (en)
CN (1) CN101268714B (en)
WO (1) WO2007024958A2 (en)

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Also Published As

Publication number Publication date
US20070047744A1 (en) 2007-03-01
WO2007024958A2 (en) 2007-03-01
EP1917836B1 (en) 2012-07-25
US8130979B2 (en) 2012-03-06
EP1917836A2 (en) 2008-05-07
CN101268714A (en) 2008-09-17
JP4864089B2 (en) 2012-01-25
CN101268714B (en) 2012-07-04
JP2009506658A (en) 2009-02-12

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