WO2004095878A3 - Method and apparatus for sound transduction with minimal interference from background noise and minimal local acoustic radiation - Google Patents

Method and apparatus for sound transduction with minimal interference from background noise and minimal local acoustic radiation Download PDF

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Publication number
WO2004095878A3
WO2004095878A3 PCT/US2004/012363 US2004012363W WO2004095878A3 WO 2004095878 A3 WO2004095878 A3 WO 2004095878A3 US 2004012363 W US2004012363 W US 2004012363W WO 2004095878 A3 WO2004095878 A3 WO 2004095878A3
Authority
WO
WIPO (PCT)
Prior art keywords
minimal
background noise
acoustic radiation
local acoustic
sound transduction
Prior art date
Application number
PCT/US2004/012363
Other languages
French (fr)
Other versions
WO2004095878A2 (en
Inventor
Richard H Lyon
David L Bowen
Gladys L Unger
Original Assignee
Rh Lyon Corp
Richard H Lyon
David L Bowen
Gladys L Unger
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 Rh Lyon Corp, Richard H Lyon, David L Bowen, Gladys L Unger filed Critical Rh Lyon Corp
Priority to EP04750459A priority Critical patent/EP1621043A4/en
Priority to US10/553,774 priority patent/US7477751B2/en
Priority to CA002522896A priority patent/CA2522896A1/en
Publication of WO2004095878A2 publication Critical patent/WO2004095878A2/en
Publication of WO2004095878A3 publication Critical patent/WO2004095878A3/en
Priority to US12/319,599 priority patent/US20090154715A1/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
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • 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
    • 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

Abstract

A transducer senses sounds produced by a talker or other source and measures acceleration of air to drive a local loudspeaker to produce a sound signal minimizing the source sum pressure signal.
PCT/US2004/012363 2003-04-23 2004-04-22 Method and apparatus for sound transduction with minimal interference from background noise and minimal local acoustic radiation WO2004095878A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP04750459A EP1621043A4 (en) 2003-04-23 2004-04-22 Method and apparatus for sound transduction with minimal interference from background noise and minimal local acoustic radiation
US10/553,774 US7477751B2 (en) 2003-04-23 2004-04-22 Method and apparatus for sound transduction with minimal interference from background noise and minimal local acoustic radiation
CA002522896A CA2522896A1 (en) 2003-04-23 2004-04-22 Method and apparatus for sound transduction with minimal interference from background noise and minimal local acoustic radiation
US12/319,599 US20090154715A1 (en) 2003-04-23 2009-01-09 Apparati and methods for sound transduction with minimal interference from background noise and minimal local acoustic radiation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46461703P 2003-04-23 2003-04-23
US60/464,617 2003-04-23

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/319,599 Continuation US20090154715A1 (en) 2003-04-23 2009-01-09 Apparati and methods for sound transduction with minimal interference from background noise and minimal local acoustic radiation

Publications (2)

Publication Number Publication Date
WO2004095878A2 WO2004095878A2 (en) 2004-11-04
WO2004095878A3 true WO2004095878A3 (en) 2005-03-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/012363 WO2004095878A2 (en) 2003-04-23 2004-04-22 Method and apparatus for sound transduction with minimal interference from background noise and minimal local acoustic radiation

Country Status (4)

Country Link
US (2) US7477751B2 (en)
EP (1) EP1621043A4 (en)
CA (1) CA2522896A1 (en)
WO (1) WO2004095878A2 (en)

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Also Published As

Publication number Publication date
WO2004095878A2 (en) 2004-11-04
US20070086603A1 (en) 2007-04-19
US20090154715A1 (en) 2009-06-18
US7477751B2 (en) 2009-01-13
EP1621043A2 (en) 2006-02-01
EP1621043A4 (en) 2009-03-04
CA2522896A1 (en) 2004-11-04

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