CA2321670A1 - Boitier de microphone a capteur radial - Google Patents

Boitier de microphone a capteur radial Download PDF

Info

Publication number
CA2321670A1
CA2321670A1 CA002321670A CA2321670A CA2321670A1 CA 2321670 A1 CA2321670 A1 CA 2321670A1 CA 002321670 A CA002321670 A CA 002321670A CA 2321670 A CA2321670 A CA 2321670A CA 2321670 A1 CA2321670 A1 CA 2321670A1
Authority
CA
Canada
Prior art keywords
waveguide
pressure
channel
sound
sound pressure
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002321670A
Other languages
English (en)
Other versions
CA2321670C (fr
Inventor
Brian Turnbull
Dale Zimmerman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RIVER FORKS RESEARCH Corp
Original Assignee
Brian Turnbull
Dale Zimmerman
River Forks Research Corporation
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 Brian Turnbull, Dale Zimmerman, River Forks Research Corporation filed Critical Brian Turnbull
Publication of CA2321670A1 publication Critical patent/CA2321670A1/fr
Application granted granted Critical
Publication of CA2321670C publication Critical patent/CA2321670C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/342—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
CA002321670A 1998-03-09 1999-03-09 Boitier de microphone a capteur radial Expired - Lifetime CA2321670C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US7736698P 1998-03-09 1998-03-09
US60/077,366 1998-03-09
PCT/CA1999/000186 WO1999046956A1 (fr) 1998-03-09 1999-03-09 Boitier de microphone a capteur radial

Publications (2)

Publication Number Publication Date
CA2321670A1 true CA2321670A1 (fr) 1999-09-16
CA2321670C CA2321670C (fr) 2005-07-12

Family

ID=22137643

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002321670A Expired - Lifetime CA2321670C (fr) 1998-03-09 1999-03-09 Boitier de microphone a capteur radial

Country Status (4)

Country Link
EP (1) EP1062837A1 (fr)
AU (1) AU2706999A (fr)
CA (1) CA2321670C (fr)
WO (1) WO1999046956A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002364009B2 (en) * 2002-01-02 2007-01-25 Advanced Bionics Corporation Wideband low-noise implantable microphone assembly
GB0315426D0 (en) 2003-07-01 2003-08-06 Mitel Networks Corp Microphone array with physical beamforming using omnidirectional microphones
CN101099409B (zh) 2005-01-13 2011-05-18 富士通株式会社 声音接收装置
KR100963363B1 (ko) * 2005-02-28 2010-06-14 후지쯔 가부시끼가이샤 수음 장치
JP5168079B2 (ja) * 2008-10-22 2013-03-21 ヤマハ株式会社 音響装置
US10134416B2 (en) * 2015-05-11 2018-11-20 Microsoft Technology Licensing, Llc Privacy-preserving energy-efficient speakers for personal sound
CN109780596B (zh) * 2017-11-10 2024-01-16 宁波方太厨具有限公司 一种降噪导流装置及应用有该降噪导流装置的吸油烟机
US11375319B2 (en) * 2020-03-30 2022-06-28 Plantronics, Inc. Tabletop microphone assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR722263A (fr) * 1931-09-01 1932-03-15 Gilbert Procédé et dispositif pour la transmission par microphone des sons émis par un instrument
FR775846A (fr) * 1933-09-23 1935-01-10 P I A N Sa Perfectionnement aux appareils acoustiques
US4436966A (en) * 1982-03-15 1984-03-13 Darome, Inc. Conference microphone unit
US4434507A (en) * 1982-08-31 1984-02-28 Chevron Research Company Free standing transmitting microphone
FR2702918B1 (fr) * 1993-03-19 1995-05-12 Prescom Sarl Appareil de prise et de restitution de son, et son application à l'audio-conférence.

Also Published As

Publication number Publication date
EP1062837A1 (fr) 2000-12-27
CA2321670C (fr) 2005-07-12
AU2706999A (en) 1999-09-27
WO1999046956A1 (fr) 1999-09-16

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MKEX Expiry

Effective date: 20190311