DK139370B - Elektroakustisk omsætter. - Google Patents

Elektroakustisk omsætter.

Info

Publication number: DK139370B
Authority: DK; Denmark
Prior art keywords: electroacoustic converter; electroacoustic; converter
Prior art date: 1971-05-17

Application number

DK245572AA

Other languages

English (en)

Other versions

DK139370C (da

Inventor

Elmer Victor Carlson

August F Mostardo Jr

Original Assignee

Industrial Res Prod Inc

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.)

1971-05-17

Filing date

1972-05-17

Publication date

1979-02-05

1972-05-17 Application filed by Industrial Res Prod Inc filed Critical Industrial Res Prod Inc

1979-02-05 Publication of DK139370B publication Critical patent/DK139370B/da

1979-07-09 Application granted granted Critical

1979-07-09 Publication of DK139370C publication Critical patent/DK139370C/da

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
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/04—Microphones
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/06—Telephone receivers

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

DK245572AA 1971-05-17 1972-05-17 Elektroakustisk omsætter. DK139370B (da)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US14401971A	1971-05-17	1971-05-17

Publications (2)

Publication Number	Publication Date
DK139370B true DK139370B (da)	1979-02-05
DK139370C DK139370C (da)	1979-07-09

Family

ID=22506712

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK245572AA DK139370B (da)	1971-05-17	1972-05-17	Elektroakustisk omsætter.

Country Status (7)

Country	Link
US (1)	US3766332A (da)
JP (1)	JPS5224842B1 (da)
CA (1)	CA963570A (da)
DK (1)	DK139370B (da)
FR (1)	FR2138061B1 (da)
GB (1)	GB1366613A (da)
NL (1)	NL164722C (da)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL1004669C2 (nl) *	1996-12-02	1998-06-03	Microtronic Nederland Bv	Transducer.
US6658134B1 (en)	1999-08-16	2003-12-02	Sonionmicrotronic Nederland B.V.	Shock improvement for an electroacoustic transducer
US7164776B2 (en) *	2000-01-07	2007-01-16	Knowles Electronics, Llc.	Vibration balanced receiver
AU2628601A (en) *	2000-01-07	2001-07-24	Knowles Electronics, Llc.	Vibration balanced receiver
US7072482B2 (en)	2002-09-06	2006-07-04	Sonion Nederland B.V.	Microphone with improved sound inlet port
JP5265373B2 (ja)	2005-11-11	2013-08-14	フィテックシステムズリミテッド	ノイズ消去イヤホン
US8135163B2 (en) *	2007-08-30	2012-03-13	Klipsch Group, Inc.	Balanced armature with acoustic low pass filter
US8666085B2 (en) *	2007-10-02	2014-03-04	Phitek Systems Limited	Component for noise reducing earphone
US20090307730A1 (en) *	2008-05-29	2009-12-10	Mark Donaldson	Media enhancement module
KR20110063792A (ko) *	2008-08-29	2011-06-14	더 펜 스테이트 리서어치 파운데이션	밸런스드 아마추어 장치의 왜곡을 감소시키는 방법 및 장치
US20110002474A1 (en) *	2009-01-29	2011-01-06	Graeme Colin Fuller	Active Noise Reduction System Control
EP2226902A3 (en) *	2009-03-06	2013-03-13	Phitek Systems Limited	In-flight entertainment system connector
US20110188668A1 (en) *	2009-09-23	2011-08-04	Mark Donaldson	Media delivery system
US9818394B2 (en) *	2009-11-30	2017-11-14	Graeme Colin Fuller	Realisation of controller transfer function for active noise cancellation
US8929082B2 (en)	2010-05-17	2015-01-06	Thales Avionics, Inc.	Airline passenger seat modular user interface device
US9487295B2 (en)	2010-11-15	2016-11-08	William James Sim	Vehicle media distribution system using optical transmitters
CN103748903B (zh)	2011-06-01	2017-02-22	菲泰克***有限公司	包括有源噪声降低的耳内装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB392318A (en) *	1932-03-05	1933-05-18	Radiophon G M B H	Improvements in loud-speaking telephones or loud-speaker apparatus
US2297218A (en) *	1937-04-24	1942-09-29	Hans E Henrich	Loud-speaker
NL106495C (da) *	1956-03-06
US3002057A (en) *	1956-03-29	1961-09-26	Vigren Sten Daniel	Polarized electromagnetic device
US3111187A (en) *	1959-11-23	1963-11-19	H J Leak & Company Ltd	Diaphragm for electro acoustic transducer
GB1058212A (en) *	1964-04-24	1967-02-08	Gen Electric Co Ltd	Improvements in or relating to telephone receivers
US3617653A (en) *	1967-05-16	1971-11-02	Tibbetts Industries	Magnetic reed type acoustic transducer with improved armature

1971
- 1971-05-17 US US00144019A patent/US3766332A/en not_active Expired - Lifetime
1972
- 1972-01-13 CA CA132,362A patent/CA963570A/en not_active Expired
- 1972-02-09 JP JP47013639A patent/JPS5224842B1/ja active Pending
- 1972-02-14 GB GB676072A patent/GB1366613A/en not_active Expired
- 1972-02-21 NL NL7202226.A patent/NL164722C/xx not_active IP Right Cessation
- 1972-05-17 DK DK245572AA patent/DK139370B/da not_active IP Right Cessation
- 1972-05-17 FR FR7217699A patent/FR2138061B1/fr not_active Expired

Also Published As

Publication number	Publication date
DE2224148A1 (de)	1972-12-07
NL7202226A (da)	1972-11-21
GB1366613A (en)	1974-09-11
JPS5224842B1 (da)	1977-07-04
US3766332A (en)	1973-10-16
FR2138061A1 (da)	1972-12-29
FR2138061B1 (da)	1975-08-01
CA963570A (en)	1975-02-25
NL164722C (nl)	1981-01-15
DE2224148B2 (de)	1976-12-09
DK139370C (da)	1979-07-09

Legal Events

Date	Code	Title	Description
1992-01-20	PBP	Patent lapsed

Publication	Publication Date	Title
DK140360B (da)	1979-08-06	Elektroakustisk omsætter.
NL161932B (nl)	1979-10-15	Gelijkstroom-wisselstroomomzetter.
NL173699C (nl)	1984-02-16	Electroakoestische omzetter.
DK137820B (da)	1978-05-08	Elektroakustisk omformer.
DK139055B (da)	1978-12-11	Ultralydomsætterapparat.
DK127955B (da)	1974-02-11	Byggesæt.
BE783967A (nl)	1972-11-27	Galvaniseerinrichting.
CH555461A (de)	1974-10-31	Echafaudage.
CH545053A (de)	1973-11-30	Elektroakustischer Wandler
DK139370B (da)	1979-02-05	Elektroakustisk omsætter.
SE382724B (sv)	1976-02-09	Styrbar stromriktare.
NL176604C (nl)	1985-05-01	Drukomzetter.
NL151609B (nl)	1976-11-15	Elektro-akoestische omzetinrichting.
CH547567A (de)	1974-03-29	Turbogenerater.
NL172504C (nl)	1983-09-01	Elektro-akoestische omzetter.
CH553706A (de)	1974-09-13	Foerderer.
CH551693A (de)	1974-07-15	Bildwandler.
NO136273C (no)	1977-08-10	Digitalt omformerapparat.
SE382509B (sv)	1976-02-02	Bildalstringsark.
CH552926A (de)	1974-08-15	Elektroakustische wandleranordnung.
CH547101A (de)	1974-03-29	Trocart.
CH547215A (fr)	1974-03-29	Aerosol-ventil.
AT309550B (de)	1973-08-27	Elektroakustischer Wandler
CH556623A (de)	1974-11-29	Fernsprechapparat.
BE770100A (fr)	1971-12-01	Meerpas draadtrekmachine.