TW291633B - - Google Patents

Info

Publication number
TW291633B
TW291633B TW085103609A TW85103609A TW291633B TW 291633 B TW291633 B TW 291633B TW 085103609 A TW085103609 A TW 085103609A TW 85103609 A TW85103609 A TW 85103609A TW 291633 B TW291633 B TW 291633B
Authority
TW
Taiwan
Application number
TW085103609A
Original Assignee
At & T Corp
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 At & T Corp filed Critical At & T Corp
Application granted granted Critical
Publication of TW291633B publication Critical patent/TW291633B/zh

Links

Classifications

    • 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
    • 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
    • H04R1/32—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
    • H04R1/38—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 in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone
    • 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
TW085103609A 1995-05-11 1996-03-26 TW291633B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/438,826 US5651074A (en) 1995-05-11 1995-05-11 Noise canceling gradient microphone assembly

Publications (1)

Publication Number Publication Date
TW291633B true TW291633B (zh) 1996-11-21

Family

ID=23742187

Family Applications (1)

Application Number Title Priority Date Filing Date
TW085103609A TW291633B (zh) 1995-05-11 1996-03-26

Country Status (5)

Country Link
US (1) US5651074A (zh)
EP (1) EP0742678A3 (zh)
JP (1) JPH08340592A (zh)
CA (1) CA2173010C (zh)
TW (1) TW291633B (zh)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2316814B (en) * 1996-08-30 2001-02-28 Nokia Mobile Phones Ltd A radio telephone connector
US5970159A (en) * 1996-11-08 1999-10-19 Telex Communications, Inc. Video monitor with shielded microphone
EP0934679A1 (en) * 1997-07-04 1999-08-11 Maxon Systems Inc. Ltd. Enclosure for a microphone
US6122389A (en) * 1998-01-20 2000-09-19 Shure Incorporated Flush mounted directional microphone
US20020131580A1 (en) * 2001-03-16 2002-09-19 Shure Incorporated Solid angle cross-talk cancellation for beamforming arrays
US20030008676A1 (en) * 2001-07-03 2003-01-09 Baumhauer John Charles Communication device having a microphone system with optimal acoustic transmission line design for improved frequency and directional response
US7383181B2 (en) 2003-07-29 2008-06-03 Microsoft Corporation Multi-sensory speech detection system
US7447630B2 (en) 2003-11-26 2008-11-04 Microsoft Corporation Method and apparatus for multi-sensory speech enhancement
US7499686B2 (en) 2004-02-24 2009-03-03 Microsoft Corporation Method and apparatus for multi-sensory speech enhancement on a mobile device
EP1574841A1 (de) * 2004-03-08 2005-09-14 Siemens Building Technologies AG Photoakustischer Gassensor
EP1574840A1 (de) * 2004-03-08 2005-09-14 Siemens Building Technologies AG Photoakustischer Gassensor und Verfahren zu dessen Herstellung
US7574008B2 (en) 2004-09-17 2009-08-11 Microsoft Corporation Method and apparatus for multi-sensory speech enhancement
JP4344342B2 (ja) * 2005-05-27 2009-10-14 ホシデン株式会社 携帯電子機器
US7346504B2 (en) 2005-06-20 2008-03-18 Microsoft Corporation Multi-sensory speech enhancement using a clean speech prior
US20070237338A1 (en) * 2006-04-11 2007-10-11 Alon Konchitsky Method and apparatus to improve voice quality of cellular calls by noise reduction using a microphone receiving noise and speech from two air pipes
TWI318077B (en) * 2006-09-04 2009-12-01 Fortemedia Inc Electronic device and process for mounting microphone therein
JP5325555B2 (ja) * 2008-12-05 2013-10-23 船井電機株式会社 マイクロホンユニット
DK2512152T3 (da) 2011-04-13 2014-02-03 Oticon As Høreapparat med to eller flere mikrofoner
JP2013135436A (ja) * 2011-12-27 2013-07-08 Funai Electric Co Ltd マイクロホン装置および電子機器
WO2014022280A1 (en) * 2012-08-03 2014-02-06 The Penn State Research Foundation Microphone array transducer for acoustic musical instrument
US9264524B2 (en) 2012-08-03 2016-02-16 The Penn State Research Foundation Microphone array transducer for acoustic musical instrument

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463222A (en) * 1981-12-23 1984-07-31 Roanwell Corporation Noise canceling transmitter
GB2200814B (en) * 1987-01-29 1990-02-28 Crystalate Electronics Microphone
US5341420A (en) * 1990-09-06 1994-08-23 British Telecommunications Public Limited Company Noise-cancelling handset
CA2069356C (en) * 1991-07-17 1997-05-06 Gary Wayne Elko Adjustable filter for differential microphones
US5511130A (en) * 1994-05-04 1996-04-23 At&T Corp. Single diaphragm second order differential microphone assembly
US5539834A (en) * 1994-11-03 1996-07-23 At&T Corp. Baffled microphone assembly

Also Published As

Publication number Publication date
EP0742678A3 (en) 1997-05-21
JPH08340592A (ja) 1996-12-24
CA2173010A1 (en) 1996-11-12
US5651074A (en) 1997-07-22
EP0742678A2 (en) 1996-11-13
CA2173010C (en) 1999-09-28

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees