WO2001054451A3 - A directional microphone assembly - Google Patents

A directional microphone assembly Download PDF

Info

Publication number
WO2001054451A3
WO2001054451A3 PCT/IB2001/000045 IB0100045W WO0154451A3 WO 2001054451 A3 WO2001054451 A3 WO 2001054451A3 IB 0100045 W IB0100045 W IB 0100045W WO 0154451 A3 WO0154451 A3 WO 0154451A3
Authority
WO
WIPO (PCT)
Prior art keywords
directional microphone
microphone
present
microphone assembly
directional
Prior art date
Application number
PCT/IB2001/000045
Other languages
French (fr)
Other versions
WO2001054451A2 (en
Inventor
Roo Dion Ivo De
Original Assignee
Microtronic Nederland Bv
Roo Dion Ivo De
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 Microtronic Nederland Bv, Roo Dion Ivo De filed Critical Microtronic Nederland Bv
Priority to EP01902565A priority Critical patent/EP1275267A2/en
Priority to AU2001230423A priority patent/AU2001230423A1/en
Publication of WO2001054451A2 publication Critical patent/WO2001054451A2/en
Publication of WO2001054451A3 publication Critical patent/WO2001054451A3/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
    • 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
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
    • H04R29/005—Microphone arrays
    • H04R29/006—Microphone matching

Abstract

The present invention relates to a directional microphone assembly comprising a front and a rear microphone for compact communication devices, such as hearing aids, mobile phones etc. The present invention integrates most or all electronic processing circuits required to form a directional microphone output signal using a front and a rear microphone signal. Accordingly, the directional microphone assembly according to the present invention occupies less volume compared to traditional microphone assemblies.
PCT/IB2001/000045 2000-01-19 2001-01-18 A directional microphone assembly WO2001054451A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP01902565A EP1275267A2 (en) 2000-01-19 2001-01-18 A directional microphone assembly
AU2001230423A AU2001230423A1 (en) 2000-01-19 2001-01-18 A directional microphone assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200000085 2000-01-19
DKPA200000085 2000-01-19

Publications (2)

Publication Number Publication Date
WO2001054451A2 WO2001054451A2 (en) 2001-07-26
WO2001054451A3 true WO2001054451A3 (en) 2002-03-21

Family

ID=8158969

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/000045 WO2001054451A2 (en) 2000-01-19 2001-01-18 A directional microphone assembly

Country Status (4)

Country Link
US (1) US6823073B2 (en)
EP (1) EP1275267A2 (en)
AU (1) AU2001230423A1 (en)
WO (1) WO2001054451A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE410901T1 (en) * 2001-04-18 2008-10-15 Widex As DIRECTIONAL CONTROL AND METHOD FOR CONTROLLING A HEARING AID
KR100471855B1 (en) * 2002-09-13 2005-03-10 현대자동차주식회사 apparatus and method for improving performance in handsfree of vehicle
DE102004011149B3 (en) * 2004-03-08 2005-11-10 Infineon Technologies Ag Microphone and method of making a microphone
US8135163B2 (en) * 2007-08-30 2012-03-13 Klipsch Group, Inc. Balanced armature with acoustic low pass filter
US20120250881A1 (en) * 2011-03-29 2012-10-04 Mulligan Daniel P Microphone biasing
US8817834B2 (en) * 2011-05-02 2014-08-26 Maxlinear, Inc. Method and system for I/Q mismatch calibration and compensation for wideband communication receivers
WO2014167165A1 (en) * 2013-04-08 2014-10-16 Nokia Corporation Audio apparatus
US9414175B2 (en) * 2013-07-03 2016-08-09 Robert Bosch Gmbh Microphone test procedure
US9668065B2 (en) 2015-09-18 2017-05-30 Sonion Nederland B.V. Acoustical module with acoustical filter
EP3148218B1 (en) * 2015-09-18 2019-12-18 Sonion Nederland B.V. Acoustical module with acoustical filter
US11792566B2 (en) * 2018-01-08 2023-10-17 Soundskrit Inc. Directional microphone and system and method for capturing and processing sound

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354059A (en) * 1979-09-11 1982-10-12 Victor Company Of Japan, Ltd. Variable-directivity microphone device
US4509193A (en) * 1983-07-11 1985-04-02 Industrial Research Products, Inc. Miniature acoustical transducer with filter/regulator power supply circuit
JPH05347793A (en) * 1992-06-15 1993-12-27 Matsushita Electric Ind Co Ltd Microphone device
JPH0690493A (en) * 1992-09-09 1994-03-29 Sony Corp Voice input device and image pickup device using this
EP0848573A2 (en) * 1996-12-11 1998-06-17 Micro Ear Technology, Inc. In-the-ear hearing aid with directional microphone system
US5796848A (en) * 1995-12-07 1998-08-18 Siemens Audiologische Technik Gmbh Digital hearing aid

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61191110A (en) * 1985-02-20 1986-08-25 Matsushita Electric Ind Co Ltd Delay circuit
US5524056A (en) 1993-04-13 1996-06-04 Etymotic Research, Inc. Hearing aid having plural microphones and a microphone switching system
EP0942628A2 (en) * 1998-03-13 1999-09-15 Siemens Hearing Instruments, Inc. Microphone assembly and calibration method
DE19814180C1 (en) * 1998-03-30 1999-10-07 Siemens Audiologische Technik Digital hearing aid with variable directional microphone characteristic

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354059A (en) * 1979-09-11 1982-10-12 Victor Company Of Japan, Ltd. Variable-directivity microphone device
US4509193A (en) * 1983-07-11 1985-04-02 Industrial Research Products, Inc. Miniature acoustical transducer with filter/regulator power supply circuit
JPH05347793A (en) * 1992-06-15 1993-12-27 Matsushita Electric Ind Co Ltd Microphone device
JPH0690493A (en) * 1992-09-09 1994-03-29 Sony Corp Voice input device and image pickup device using this
US5796848A (en) * 1995-12-07 1998-08-18 Siemens Audiologische Technik Gmbh Digital hearing aid
EP0848573A2 (en) * 1996-12-11 1998-06-17 Micro Ear Technology, Inc. In-the-ear hearing aid with directional microphone system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 195 (E - 1533) 5 April 1994 (1994-04-05) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 355 (E - 1573) 5 July 1994 (1994-07-05) *

Also Published As

Publication number Publication date
AU2001230423A1 (en) 2001-07-31
WO2001054451A2 (en) 2001-07-26
US6823073B2 (en) 2004-11-23
EP1275267A2 (en) 2003-01-15
US20010008559A1 (en) 2001-07-19

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