AU2001290218A1 - Directional optical microphones - Google Patents

Directional optical microphones

Info

Publication number
AU2001290218A1
AU2001290218A1 AU2001290218A AU9021801A AU2001290218A1 AU 2001290218 A1 AU2001290218 A1 AU 2001290218A1 AU 2001290218 A AU2001290218 A AU 2001290218A AU 9021801 A AU9021801 A AU 9021801A AU 2001290218 A1 AU2001290218 A1 AU 2001290218A1
Authority
AU
Australia
Prior art keywords
directional optical
optical microphones
microphones
directional
optical
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.)
Abandoned
Application number
AU2001290218A
Inventor
Alexander Kots
Alexander Paritsky
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.)
Phone Or Ltd
Original Assignee
Phone Or Ltd
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 Phone Or Ltd filed Critical Phone Or Ltd
Publication of AU2001290218A1 publication Critical patent/AU2001290218A1/en
Abandoned 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
    • H04R1/38—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
    • 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
    • H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
AU2001290218A 2000-09-14 2001-09-10 Directional optical microphones Abandoned AU2001290218A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IL138460 2000-09-14
IL13846000A IL138460A0 (en) 2000-09-14 2000-09-14 Directional optical microphones
PCT/IL2001/000853 WO2002023947A1 (en) 2000-09-14 2001-09-10 Directional optical microphones

Publications (1)

Publication Number Publication Date
AU2001290218A1 true AU2001290218A1 (en) 2002-03-26

Family

ID=11074629

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001290218A Abandoned AU2001290218A1 (en) 2000-09-14 2001-09-10 Directional optical microphones

Country Status (7)

Country Link
US (1) US20020164043A1 (en)
EP (1) EP1191811A1 (en)
JP (1) JP2004509495A (en)
AU (1) AU2001290218A1 (en)
DE (1) DE1191811T1 (en)
IL (1) IL138460A0 (en)
WO (1) WO2002023947A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7903835B2 (en) * 2006-10-18 2011-03-08 The Research Foundation Of State University Of New York Miniature non-directional microphone
DE102006059850B4 (en) * 2006-12-15 2008-10-23 Diehl Ako Stiftung & Co. Kg Optical sensor
US9181086B1 (en) 2012-10-01 2015-11-10 The Research Foundation For The State University Of New York Hinged MEMS diaphragm and method of manufacture therof
US20150365770A1 (en) * 2014-06-11 2015-12-17 Knowles Electronics, Llc MEMS Device With Optical Component

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3127406C2 (en) * 1981-07-10 1986-03-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Modulation device for optical signal transmission
JP2541621B2 (en) * 1988-04-20 1996-10-09 株式会社プリモ Directional microphone
US5282245A (en) * 1990-08-13 1994-01-25 Shure Brothers, Incorporated Tubular bi-directional microphone with flared entries
US5732143A (en) * 1992-10-29 1998-03-24 Andrea Electronics Corp. Noise cancellation apparatus
US5226076A (en) * 1993-02-28 1993-07-06 At&T Bell Laboratories Directional microphone assembly
DE19623504C1 (en) * 1996-06-13 1997-07-10 Deutsche Forsch Luft Raumfahrt Optical microphone using Fabry-Perot interferometer and fibre=optics feed line
IL120464A (en) * 1997-03-17 2000-01-31 Phone Or Ltd Sensor and method for measuring distances to and/or physical properties of a medium
US6301034B1 (en) * 1997-10-22 2001-10-09 John R. Speciale Pulsed laser microphone
US6014239C1 (en) * 1997-12-12 2002-04-09 Brookhaven Science Ass Llc Optical microphone
US6154551A (en) * 1998-09-25 2000-11-28 Frenkel; Anatoly Microphone having linear optical transducers

Also Published As

Publication number Publication date
WO2002023947A1 (en) 2002-03-21
DE1191811T1 (en) 2002-10-17
EP1191811A1 (en) 2002-03-27
IL138460A0 (en) 2001-10-31
US20020164043A1 (en) 2002-11-07
JP2004509495A (en) 2004-03-25

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