SE9800850D0 - Directed microphone - Google Patents

Directed microphone

Info

Publication number
SE9800850D0
SE9800850D0 SE9800850A SE9800850A SE9800850D0 SE 9800850 D0 SE9800850 D0 SE 9800850D0 SE 9800850 A SE9800850 A SE 9800850A SE 9800850 A SE9800850 A SE 9800850A SE 9800850 D0 SE9800850 D0 SE 9800850D0
Authority
SE
Sweden
Prior art keywords
microphone
tube
directed microphone
directed
muffling
Prior art date
Application number
SE9800850A
Other languages
Swedish (sv)
Inventor
Johan Ullman
Original Assignee
Johan Ullman
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 Johan Ullman filed Critical Johan Ullman
Priority to SE9800850A priority Critical patent/SE9800850D0/en
Publication of SE9800850D0 publication Critical patent/SE9800850D0/en
Priority to JP2000538538A priority patent/JP2002508641A/en
Priority to CN 99803676 priority patent/CN1292984A/en
Priority to EP99909462A priority patent/EP1062838A1/en
Priority to AU28658/99A priority patent/AU2865899A/en
Priority to PCT/SE1999/000390 priority patent/WO1999049697A1/en

Links

Abstract

Device for use with a microphone, for selective muffling of surrounding noise, consisting of a tube with a closed end that houses the microphone, and an open end that faces the surroundings, distinguished by the tube being coated on the inside with sound-absorbent material.
SE9800850A 1998-03-12 1998-03-12 Directed microphone SE9800850D0 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9800850A SE9800850D0 (en) 1998-03-12 1998-03-12 Directed microphone
JP2000538538A JP2002508641A (en) 1998-03-12 1999-03-12 Directional microphone
CN 99803676 CN1292984A (en) 1998-03-12 1999-03-12 Directional microphone
EP99909462A EP1062838A1 (en) 1998-03-12 1999-03-12 Directional microphone
AU28658/99A AU2865899A (en) 1998-03-12 1999-03-12 Directional microphone
PCT/SE1999/000390 WO1999049697A1 (en) 1998-03-12 1999-03-12 Directional microphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9800850A SE9800850D0 (en) 1998-03-12 1998-03-12 Directed microphone

Publications (1)

Publication Number Publication Date
SE9800850D0 true SE9800850D0 (en) 1998-03-12

Family

ID=20410551

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9800850A SE9800850D0 (en) 1998-03-12 1998-03-12 Directed microphone

Country Status (6)

Country Link
EP (1) EP1062838A1 (en)
JP (1) JP2002508641A (en)
CN (1) CN1292984A (en)
AU (1) AU2865899A (en)
SE (1) SE9800850D0 (en)
WO (1) WO1999049697A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101651920B (en) * 2009-06-19 2013-05-22 瑞声声学科技(深圳)有限公司 Microphone distortion test system
US9118989B2 (en) 2012-09-05 2015-08-25 Kaotica Corporation Noise mitigating microphone attachment
US8737662B2 (en) 2012-09-05 2014-05-27 Kaotica Corporation Noise mitigating microphone attachment
USD733690S1 (en) 2013-10-30 2015-07-07 Kaotica Corporation Noise mitigating microphone attachment
US10701481B2 (en) 2018-11-14 2020-06-30 Townsend Labs Inc Microphone sound isolation baffle and system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2027318A (en) * 1978-07-21 1980-02-13 Farmer N Sound detectors
US4555598A (en) * 1983-09-21 1985-11-26 At&T Bell Laboratories Teleconferencing acoustic transducer
DE3901158A1 (en) * 1989-01-17 1990-07-19 Messerschmitt Boelkow Blohm Directional microphone
US4967874A (en) * 1989-11-13 1990-11-06 Scalli Jeffrey R Microphone baffle apparatus
GB2255687B (en) * 1991-05-07 1994-09-21 Matsushita Electric Ind Co Ltd Radio telephone apparatus
US5692060A (en) * 1995-05-01 1997-11-25 Knowles Electronics, Inc. Unidirectional microphone

Also Published As

Publication number Publication date
CN1292984A (en) 2001-04-25
EP1062838A1 (en) 2000-12-27
AU2865899A (en) 1999-10-18
JP2002508641A (en) 2002-03-19
WO1999049697A1 (en) 1999-09-30

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