DE69637668D1 - Von einem faltbaren Bild abgeleitetes Differentialmikrofon - Google Patents

Von einem faltbaren Bild abgeleitetes Differentialmikrofon

Info

Publication number
DE69637668D1
DE69637668D1 DE69637668T DE69637668T DE69637668D1 DE 69637668 D1 DE69637668 D1 DE 69637668D1 DE 69637668 T DE69637668 T DE 69637668T DE 69637668 T DE69637668 T DE 69637668T DE 69637668 D1 DE69637668 D1 DE 69637668D1
Authority
DE
Germany
Prior art keywords
image derived
differential microphone
foldable image
derived differential
foldable
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.)
Expired - Lifetime
Application number
DE69637668T
Other languages
English (en)
Inventor
Robert Alfred Kubli
James Edward West
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.)
AT&T Corp
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 DE69637668D1 publication Critical patent/DE69637668D1/de
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
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers 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)
  • Stereophonic Arrangements (AREA)
  • Telephone Set Structure (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
DE69637668T 1995-12-27 1996-12-05 Von einem faltbaren Bild abgeleitetes Differentialmikrofon Expired - Lifetime DE69637668D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/579,528 US5748757A (en) 1995-12-27 1995-12-27 Collapsible image derived differential microphone

Publications (1)

Publication Number Publication Date
DE69637668D1 true DE69637668D1 (de) 2008-10-16

Family

ID=24317272

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69637668T Expired - Lifetime DE69637668D1 (de) 1995-12-27 1996-12-05 Von einem faltbaren Bild abgeleitetes Differentialmikrofon

Country Status (5)

Country Link
US (1) US5748757A (de)
EP (1) EP0782368B1 (de)
JP (1) JP3051072B2 (de)
CA (1) CA2190665C (de)
DE (1) DE69637668D1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6925188B1 (en) 1997-06-20 2005-08-02 Hewlett-Packard Development Company, L.P. Ported speaker enclosure of a portable computer
US6633647B1 (en) * 1997-06-30 2003-10-14 Hewlett-Packard Development Company, L.P. Method of custom designing directional responses for a microphone of a portable computer
KR100481845B1 (ko) 1998-06-10 2005-06-08 삼성전자주식회사 마이크로폰을 갖는 휴대형 컴퓨터
EP1175592B1 (de) * 1999-05-03 2003-06-11 SYNTHES AG Chur Positionserfassungsvorrichtung mit hilfsmitteln zur ermittlung der richtung des schwerkraftvektors
US6473514B1 (en) * 2000-01-05 2002-10-29 Gn Netcom, Inc. High directivity microphone array
ATE492125T1 (de) * 2000-03-24 2011-01-15 Intel Corp Räumliches schallsteuerungssystem
JP3824920B2 (ja) * 2001-12-07 2006-09-20 ヤマハ発動機株式会社 マイクロホンユニット及び音源方向同定システム
DE10208465A1 (de) * 2002-02-27 2003-09-18 Bsh Bosch Siemens Hausgeraete Elektrisches Gerät, insbesondere Dunstabzugshaube
US7146014B2 (en) 2002-06-11 2006-12-05 Intel Corporation MEMS directional sensor system
GB0315426D0 (en) * 2003-07-01 2003-08-06 Mitel Networks Corp Microphone array with physical beamforming using omnidirectional microphones
US7676052B1 (en) 2006-02-28 2010-03-09 National Semiconductor Corporation Differential microphone assembly
JP4643698B2 (ja) * 2008-09-16 2011-03-02 レノボ・シンガポール・プライベート・リミテッド マイクロフォンを備えるタブレット・コンピュータおよび制御方法
US8830791B2 (en) * 2011-04-27 2014-09-09 Empire Technology Development Llc Measurement of 3D coordinates of transmitter
TWI449941B (zh) * 2012-12-27 2014-08-21 Acer Inc 定位系統和定位方法
US10028053B2 (en) * 2015-05-05 2018-07-17 Wave Sciences, LLC Portable computing device microphone array
USD823825S1 (en) * 2017-02-23 2018-07-24 Abel Flores Microphone speaking shield
US10904657B1 (en) 2019-10-11 2021-01-26 Plantronics, Inc. Second-order gradient microphone system with baffles for teleconferencing
USD910604S1 (en) * 2020-07-22 2021-02-16 Crown Tech Llc Microphone isolation shield
USD905022S1 (en) * 2020-07-22 2020-12-15 Crown Tech Llc Microphone isolation shield

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5434225A (en) * 1977-08-22 1979-03-13 Sony Corp Microphone device
JPS5749500Y2 (de) * 1978-09-25 1982-10-29
US4742548A (en) * 1984-12-20 1988-05-03 American Telephone And Telegraph Company Unidirectional second order gradient microphone
US4675906A (en) * 1984-12-20 1987-06-23 At&T Company, At&T Bell Laboratories Second order toroidal microphone
DE3882721D1 (de) * 1987-01-23 1993-09-09 Siemens Ag Fernsprechhandapparatekoerper mit einer die bedienungseinrichtung verschliessbaren klappe.
US4856070A (en) * 1987-07-20 1989-08-08 Britton Sr Joe L Retractable 2 way microphone
US4965775A (en) * 1989-05-19 1990-10-23 At&T Bell Laboratories Image derived directional microphones
FR2703203B1 (fr) * 1993-03-23 1995-04-28 Alcatel Radiotelephone Terminal radiotéléphonique portatif compact.

Also Published As

Publication number Publication date
JP3051072B2 (ja) 2000-06-12
CA2190665A1 (en) 1997-06-28
EP0782368A2 (de) 1997-07-02
US5748757A (en) 1998-05-05
EP0782368A3 (de) 2006-05-03
JPH09215087A (ja) 1997-08-15
CA2190665C (en) 1999-03-23
EP0782368B1 (de) 2008-09-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition