DK102969C - Electroacoustic transducer. - Google Patents

Electroacoustic transducer.

Info

Publication number: DK102969C
Authority: DK; Denmark
Prior art keywords: electroacoustic transducer; electroacoustic; transducer
Prior art date: 1958-03-07

Application number

DK80459AA

Other languages

Danish (da)

Inventor

Ephraim Heinrich Dr Frei

Robert Gamzon

Original Assignee

Ephraim Heinrich Dr Frei

Robert Gamzon

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.)

1958-03-07

Filing date

1959-03-05

Publication date

1965-11-01

1959-03-05 Application filed by Ephraim Heinrich Dr Frei, Robert Gamzon filed Critical Ephraim Heinrich Dr Frei

1965-11-01 Application granted granted Critical

1965-11-01 Publication of DK102969C publication Critical patent/DK102969C/en

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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
- H04R9/047—Construction in which the windings of the moving coil lay in the same plane

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Electromagnetism (AREA)
Mechanical Engineering (AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

DK80459AA 1958-03-07 1959-03-05 Electroacoustic transducer. DK102969C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IL1116858		1958-03-07

Publications (1)

Publication Number	Publication Date
DK102969C true DK102969C (en)	1965-11-01

Family

ID=11043133

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK80459AA DK102969C (en)	1958-03-07	1959-03-05	Electroacoustic transducer.

Country Status (8)

Country	Link
US (1)	US3013905A (en)
BE (1)	BE576384A (en)
CH (1)	CH373781A (en)
DE (1)	DE1094802B (en)
DK (1)	DK102969C (en)
FR (1)	FR1218259A (en)
GB (1)	GB869620A (en)
NL (2)	NL112193C (en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3139490A (en) *	1958-10-15	1964-06-30	Lyons Philip Daniel	Sound reproducing and recording device
US3164686A (en) *	1959-09-21	1965-01-05	Tibbetts Industries	Electrodynamic transducer
FR1269138A (en) *	1960-06-23	1961-08-11		Improvements to loudspeakers, microphones, and similar electrodynamic devices
US3141071A (en) *	1960-07-18	1964-07-14	Rosen Alfred H	Full range electroacoustic transducers
NL274947A (en) *	1961-02-20
US3132215A (en) *	1961-03-03	1964-05-05	Maico Electronics Inc	Acoustical device
AT239344B (en) *	1963-03-13	1965-03-25	Akg Akustische Kino Geraete	Electrodynamic headphones
NL290698A (en) *	1963-03-26
NL6509969A (en) *	1965-07-31	1967-02-01
US3497642A (en) *	1966-02-28	1970-02-24	Intron Int Inc	Transducer diaphragm imbedded with conductively-coated ferromagnetic particles
FR2137567B1 (en) *	1971-05-07	1977-08-26	Rank Organisation Ltd
SE363956B (en) *	1972-06-20	1974-02-04	P Beer
US3898598A (en) *	1974-01-24	1975-08-05	Foster Tsushin Kogyo	Dynamic electroacoustic transducer
US3922504A (en) *	1975-01-02	1975-11-25	Foster Electric Co Ltd	Electroacoustic transducer
US4013846A (en) *	1975-08-28	1977-03-22	Minnesota Mining And Manufacturing Company	Piston loudspeaker
US4210786A (en) *	1979-01-24	1980-07-01	Magnepan, Incorporated	Magnetic field structure for planar speaker
NL7908447A (en) *	1979-11-20	1981-06-16	Philips Nv	MAGNETIC SYSTEM FOR AN ELECTROACOUSTIC CONVERTER.
US4413161A (en) *	1980-02-09	1983-11-01	Nippon Gakki Seizo Kabushiki Kaisha	Electro-acoustic transducer
US4384173A (en) *	1980-08-01	1983-05-17	Granus Corporation	Electromagnetic planar diaphragm transducer
DE3123098C2 (en) *	1981-06-11	1983-06-01	Martin 4600 Dortmund Stute	Membrane for electroacoustic transducer systems
US4550228A (en) *	1983-02-22	1985-10-29	Apogee Acoustics, Inc.	Ribbon speaker system
GB2154096A (en) *	1984-02-08	1985-08-29	Chien Yuan Liu	Loudspeaker
AU1189592A (en) *	1991-01-17	1992-08-27	Roger A. Adelman	Improved hearing apparatus
CN1233199C (en) *	2000-03-03	2005-12-21	美国技术公司	Single and planar magnetic speaker
US6934402B2 (en) *	2001-01-26	2005-08-23	American Technology Corporation	Planar-magnetic speakers with secondary magnetic structure
US20040200801A1 (en) *	2001-11-19	2004-10-14	Lai Laurence M.C.	Manufacture having double sided features in a metal-containing web and manufacture and method for forming same in a liquid-based etch process
US8358801B2 (en) *	2007-02-12	2013-01-22	Robert Katz	Magnetic circuit for electrodynamic moving voice coil actuators
US20090175488A1 (en) *	2008-01-09	2009-07-09	Jui-Cheng Chang	Diaphragm and Electrical-Acoustic Transducer having the same
US8942408B1 (en)	2011-07-22	2015-01-27	James Joseph Croft, III	Magnetically one-side driven planar transducer with improved electro-magnetic circuit
US8774430B2 (en) *	2011-12-02	2014-07-08	Thomas Paul Heed	Linear interleaved magnetic motor and loudspeaker transducer using same
US9197965B2 (en)	2013-03-15	2015-11-24	James J. Croft, III	Planar-magnetic transducer with improved electro-magnetic circuit
DE102014211687A1 (en) *	2014-06-18	2015-12-24	Sennheiser Electronic Gmbh & Co. Kg	Electrodynamic transducer
DE102017122660A1 (en) *	2016-10-04	2018-04-05	Sennheiser Electronic Gmbh & Co. Kg	Planar dynamic transducer
RU199764U1 (en) *	2020-06-09	2020-09-21	Сергей Юрьевич Глазырин	MATRIX Emitter
US11956589B1 (en)	2021-07-13	2024-04-09	Wisdom Audio Corp.	PMD speaker mounting assembly and thermal control system for multiple drivers

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE484339C (en) *		1929-10-15	Lorenz Akt Ges C	Electrodynamic telephone, especially for loudspeakers
US1238439A (en) *	1914-04-24	1917-08-28	Rudow Rummler	Telephone for transmitting and reproducing sounds.
US1877254A (en) *	1930-09-12	1932-09-13	Gen Motors Radio Corp	Sheet material
US2269149A (en) *	1939-11-24	1942-01-06	Gen Electric	Permanent magnet
US2565591A (en) *	1946-10-05	1951-08-28	Pentone Inc	Electrical earphone device
GB674470A (en) *	1950-06-01	1952-06-25	Frank Thomas Cooper	Improvements in or relating to ribbon microphones
DE971374C (en) *	1951-04-23	1959-01-15	Philips Nv	Magnet body, consisting of a ferromagnetic part with high permeability and an embedded permanent magnet in the form of a thin, elongated body
US2722617A (en) *	1951-11-28	1955-11-01	Hartford Nat Bank & Trust Comp	Magnetic circuits and devices
CH314504A (en) *	1953-05-22	1956-06-15	Bohli Jakob	Magnetic system for dynamic ribbon microphone
US2903673A (en) *	1954-01-06	1959-09-08	Harris Transducer Corp	Acoustical impedance-matching transducer

0
- NL NL236904D patent/NL236904A/xx unknown
- NL NL112193D patent/NL112193C/xx active
1958
- 1958-11-20 US US775252A patent/US3013905A/en not_active Expired - Lifetime
1959
- 1959-02-20 GB GB6007/59A patent/GB869620A/en not_active Expired
- 1959-02-21 DE DEG26436A patent/DE1094802B/en active Pending
- 1959-02-26 CH CH7007959A patent/CH373781A/en unknown
- 1959-03-05 FR FR788523A patent/FR1218259A/en not_active Expired
- 1959-03-05 DK DK80459AA patent/DK102969C/en active
- 1959-03-05 BE BE576384A patent/BE576384A/en unknown

Also Published As

Publication number	Publication date
DE1094802B (en)	1960-12-15
GB869620A (en)	1961-05-31
NL236904A (en)
CH373781A (en)	1963-12-15
BE576384A (en)	1959-07-01
US3013905A (en)	1961-12-19
NL112193C (en)
FR1218259A (en)	1960-05-10

Publication	Publication Date	Title
DK102969C (en)	1965-11-01	Electroacoustic transducer.
FR1303017A (en)	1962-09-07	Electro-acoustic transducer
DK111053B (en)	1968-05-20	Electro-acoustic converter.
DK103946C (en)	1966-03-14	Electroacoustic transducer.
BE581628A (en)	1959-12-01	Stretcher-twist.
FR1315545A (en)	1963-01-18	Electroacoustic transducer
FR1284565A (en)	1962-02-16	Electro-acoustic transducer
DK106453C (en)	1967-02-06	Endoradiosonde.
DK94966C (en)	1962-12-10	Sound recorder.
BE595187A (en)	1961-03-20	Transducer.
FR1218944A (en)	1960-05-13	Transducer
BE582122A (en)	1960-12-16	Vibrator.
DK88225C (en)	1959-11-30	Sound box.
FR1191534A (en)	1959-10-20	Sound toy-subject
DK97496C (en)	1963-12-02	Underwater sonar.
DK93473C (en)	1962-05-21	Mouthpiece.
DK90530C (en)	1961-03-06	Voltage-disconnected transducer.
DK112347B (en)	1968-12-02	Electrodynamic sound repeater.
DK94449C (en)	1962-10-01	Spuns.
DK91945C (en)	1961-10-09	Nematodicide.
DK90912C (en)	1961-05-15	Toldehane.
BE577759R (en)	1959-10-16	Roterende registerertrommel.
BE577755R (en)	1959-10-16	Sorteermachine.
DK88955C (en)	1960-05-09	Kærneæltertønde.
BE577756R (en)	1959-10-16	Electrisch sortersysteem.