CH587594A5 - - Google Patents
Info
- Publication number
- CH587594A5 CH587594A5 CH158974A CH158974A CH587594A5 CH 587594 A5 CH587594 A5 CH 587594A5 CH 158974 A CH158974 A CH 158974A CH 158974 A CH158974 A CH 158974A CH 587594 A5 CH587594 A5 CH 587594A5
- Authority
- CH
- Switzerland
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
- 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
- H04R25/402—Arrangements for obtaining a desired directivity characteristic using contructional means
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00329673A US3835263A (en) | 1973-02-05 | 1973-02-05 | Microphone assembly operable in directional and non-directional modes |
Publications (1)
Publication Number | Publication Date |
---|---|
CH587594A5 true CH587594A5 (nl) | 1977-05-13 |
Family
ID=23286501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH158974A CH587594A5 (nl) | 1973-02-05 | 1974-02-05 |
Country Status (9)
Country | Link |
---|---|
US (1) | US3835263A (nl) |
JP (1) | JPS5317444B2 (nl) |
AT (1) | AT332465B (nl) |
CA (1) | CA991738A (nl) |
CH (1) | CH587594A5 (nl) |
DK (1) | DK149294C (nl) |
FR (1) | FR2216745B1 (nl) |
GB (1) | GB1430200A (nl) |
NL (1) | NL167832C (nl) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4006321A (en) * | 1974-02-20 | 1977-02-01 | Industrial Research Products, Inc. | Transducer coupling system |
US3909556A (en) * | 1974-08-08 | 1975-09-30 | Audivox Inc | Directionally variable hearing aid |
US4763753A (en) * | 1984-07-05 | 1988-08-16 | Etymotic Research, Inc. | Insert earphones for audiometry |
DE8529458U1 (de) * | 1985-10-16 | 1987-05-07 | Siemens AG, 1000 Berlin und 8000 München | Hörgerät |
CA1331803C (en) * | 1988-12-21 | 1994-08-30 | Murray A. Davis | Hearing aid |
DE69120542T2 (de) * | 1990-09-06 | 1996-11-28 | British Telecomm | " Rauschunterdrückender Handapparat " |
US5204907A (en) * | 1991-05-28 | 1993-04-20 | Motorola, Inc. | Noise cancelling microphone and boot mounting arrangement |
JPH067205A (ja) * | 1992-06-26 | 1994-01-18 | Ngk Insulators Ltd | 靴用金属製中敷 |
US5524056A (en) * | 1993-04-13 | 1996-06-04 | Etymotic Research, Inc. | Hearing aid having plural microphones and a microphone switching system |
US5878147A (en) * | 1996-12-31 | 1999-03-02 | Etymotic Research, Inc. | Directional microphone assembly |
US7881486B1 (en) * | 1996-12-31 | 2011-02-01 | Etymotic Research, Inc. | Directional microphone assembly |
US6151399A (en) | 1996-12-31 | 2000-11-21 | Etymotic Research, Inc. | Directional microphone system providing for ease of assembly and disassembly |
US6798890B2 (en) | 2000-10-05 | 2004-09-28 | Etymotic Research, Inc. | Directional microphone assembly |
AU4567099A (en) * | 1998-07-01 | 2000-01-24 | Resound Corporation | External microphone protective membrane |
US6597793B1 (en) | 1998-08-06 | 2003-07-22 | Resistance Technology, Inc. | Directional/omni-directional hearing aid microphone and housing |
US6690806B1 (en) * | 1999-04-01 | 2004-02-10 | Resistance Technology, Inc. | Various directional/omni-directional hearing aid microphone and housing structures |
WO2000079835A1 (de) * | 1999-06-16 | 2000-12-28 | Phonak Ag | Hinterohr-hörgerät |
US6876749B1 (en) | 1999-07-12 | 2005-04-05 | Etymotic Research, Inc. | Microphone for hearing aid and communications applications having switchable polar and frequency response characteristics |
US20020001391A1 (en) * | 2000-03-16 | 2002-01-03 | Resistance Technology, Inc. | Acoustic switch with electronic switching capability |
DE20009593U1 (de) * | 2000-05-30 | 2000-08-10 | AS Audio Service GmbH, 32051 Herford | Hörgerätewinkel für HdO-Hörgeräte |
US7136497B2 (en) * | 2002-04-17 | 2006-11-14 | Knowles Electronics, Llc. | Acoustical switch for a directional microphone |
US7072482B2 (en) | 2002-09-06 | 2006-07-04 | Sonion Nederland B.V. | Microphone with improved sound inlet port |
US7751579B2 (en) * | 2003-06-13 | 2010-07-06 | Etymotic Research, Inc. | Acoustically transparent debris barrier for audio transducers |
US7233679B2 (en) * | 2003-09-30 | 2007-06-19 | Motorola, Inc. | Microphone system for a communication device |
EP1671515A1 (en) * | 2003-10-03 | 2006-06-21 | Oticon A/S | Hearing aid with printed circuit board and microphone suspension |
NL2000085C2 (nl) * | 2006-06-02 | 2007-12-04 | Varibel B V | Bril met gehoorondersteuningsmiddelen welke slechts één omnidirectionele microfoon per oorbeugel gebruikt. |
US8111839B2 (en) * | 2007-04-09 | 2012-02-07 | Personics Holdings Inc. | Always on headwear recording system |
US7832080B2 (en) * | 2007-10-11 | 2010-11-16 | Etymotic Research, Inc. | Directional microphone assembly |
CN102210166B (zh) * | 2008-10-10 | 2014-04-30 | 美商楼氏电子有限公司 | 声学阀机构 |
US8447054B2 (en) * | 2009-11-11 | 2013-05-21 | Analog Devices, Inc. | Microphone with variable low frequency cutoff |
DE102009056916B4 (de) * | 2009-12-03 | 2011-07-21 | Siemens Medical Instruments Pte. Ltd. | Hörgerät mit einer platzsparenden Anordnung von Mikrofonen und Schallöffnungen |
US20130177192A1 (en) * | 2011-10-25 | 2013-07-11 | Knowles Electronics, Llc | Vented Microphone Module |
KR101783191B1 (ko) | 2013-03-14 | 2017-09-29 | 로베르트 보쉬 게엠베하 | Mems 마이크로폰들에 대한 디지털 음향 저주파수 응답 제어 |
US9859879B2 (en) | 2015-09-11 | 2018-01-02 | Knowles Electronics, Llc | Method and apparatus to clip incoming signals in opposing directions when in an off state |
CN107249157A (zh) * | 2017-08-09 | 2017-10-13 | 陆文胜 | 一种定向降噪耳机麦克风 |
DE202018107148U1 (de) | 2017-12-29 | 2019-01-15 | Knowles Electronics, Llc | Audiovorrichtung mit akustischem Ventil |
DE102018221725A1 (de) | 2018-01-08 | 2019-07-11 | Knowles Electronics, Llc | Audiovorrichtung mit Ventilzustandsverwaltung |
US10932069B2 (en) | 2018-04-12 | 2021-02-23 | Knowles Electronics, Llc | Acoustic valve for hearing device |
EP3884804A4 (en) | 2018-11-20 | 2022-09-07 | Toray Industries, Inc. | PROTECTIVE CLOTHING |
US10917731B2 (en) | 2018-12-31 | 2021-02-09 | Knowles Electronics, Llc | Acoustic valve for hearing device |
US11102576B2 (en) | 2018-12-31 | 2021-08-24 | Knowles Electronicis, LLC | Audio device with audio signal processing based on acoustic valve state |
US11774320B1 (en) * | 2022-11-18 | 2023-10-03 | xMEMS Labs, Inc. | Acoustic impedance measuring system and acoustic impedance measuring method |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3770911A (en) * | 1972-07-21 | 1973-11-06 | Industrial Research Prod Inc | Hearing aid system |
-
1973
- 1973-02-05 US US00329673A patent/US3835263A/en not_active Expired - Lifetime
- 1973-09-17 GB GB4352373A patent/GB1430200A/en not_active Expired
- 1973-09-24 AT AT820273A patent/AT332465B/de not_active IP Right Cessation
- 1973-09-25 CA CA181,886A patent/CA991738A/en not_active Expired
- 1973-11-06 FR FR7339389A patent/FR2216745B1/fr not_active Expired
- 1973-12-13 NL NL7317130A patent/NL167832C/nl not_active IP Right Cessation
- 1973-12-24 JP JP14367073A patent/JPS5317444B2/ja not_active Expired
-
1974
- 1974-02-04 DK DK58074A patent/DK149294C/da not_active IP Right Cessation
- 1974-02-05 CH CH158974A patent/CH587594A5/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL167832C (nl) | 1982-01-18 |
ATA820273A (de) | 1976-01-15 |
NL7317130A (nl) | 1974-08-07 |
FR2216745A1 (nl) | 1974-08-30 |
DK149294B (da) | 1986-04-21 |
US3835263A (en) | 1974-09-10 |
FR2216745B1 (nl) | 1978-11-17 |
AT332465B (de) | 1976-09-27 |
JPS49107723A (nl) | 1974-10-14 |
GB1430200A (en) | 1976-03-31 |
DE2400666A1 (de) | 1974-08-08 |
JPS5317444B2 (nl) | 1978-06-08 |
DE2400666B2 (de) | 1977-05-18 |
CA991738A (en) | 1976-06-22 |
NL167832B (nl) | 1981-08-17 |
AU6048473A (en) | 1975-03-20 |
DK149294C (da) | 1986-09-29 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUE | Assignment |
Owner name: KNOWLES ELECTRONICS, INC. |
|
PL | Patent ceased |