CA979113A - Electro-acoustic transducer - Google Patents

Electro-acoustic transducer

Info

Publication number: CA979113A
Authority: CA; Canada
Prior art keywords: electro; acoustic transducer; acoustic; transducer
Prior art date: 1973-01-08
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.): Expired

Application number

CA189,436A

Other languages

English (en)

Other versions

CA189436S (en

Inventor

Oskar Heil

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.)

Individual

Original Assignee

Individual

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.)

1973-01-08

Filing date

1974-01-04

Publication date

1975-12-02

1974-01-04 Application filed by Individual filed Critical Individual

1975-12-02 Application granted granted Critical

1975-12-02 Publication of CA979113A publication Critical patent/CA979113A/en

Status Expired legal-status Critical Current

Classifications

- 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
- 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
- H04R9/06—Loudspeakers
- H04R9/063—Loudspeakers using a plurality of acoustic drivers

Landscapes

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

CA189,436A 1973-01-08 1974-01-04 Electro-acoustic transducer Expired CA979113A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US00321826A US3832499A (en)	1973-01-08	1973-01-08	Electro-acoustic transducer

Publications (1)

Publication Number	Publication Date
CA979113A true CA979113A (en)	1975-12-02

Family

ID=23252194

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA189,436A Expired CA979113A (en)	1973-01-08	1974-01-04	Electro-acoustic transducer

Country Status (10)

Country	Link
US (1)	US3832499A (it)
JP (1)	JPS5542555B2 (it)
AU (1)	AU6429474A (it)
CA (1)	CA979113A (it)
CH (1)	CH567855A5 (it)
DE (1)	DE2400625A1 (it)
FR (1)	FR2213631B1 (it)
GB (1)	GB1432721A (it)
IT (1)	IT1008673B (it)
SE (1)	SE391101B (it)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA964760A (en) *	1973-03-13	1975-03-18	Atkins, Lucien W.	Electro acoustic transducers
JPS5440015Y2 (it) *	1975-04-16	1979-11-27
JPS5619513Y2 (it) *	1975-09-11	1981-05-08
US4056697A (en) *	1976-09-03	1977-11-01	Oskar Heil	Movable diaphragm connector method flexible hinge diaphragm surround and electro-acoustic transducer with folded diaphragm with intermediate flexible portions
JPS5481736U (it) *	1977-11-17	1979-06-09
JPS5485856A (en) *	1977-12-20	1979-07-07	Jihado Arudein Imado	Umbrella
US4354066A (en) *	1980-09-15	1982-10-12	Necoechea Robert W	Rigid-diaphragm transducer with plural coils
NL8102572A (nl) *	1981-05-26	1982-12-16	Philips Nv	Elektroakoestische omzetter van het band-type met lage vervorming en verbeterde gevoeligheid.
US5195143A (en) *	1991-05-31	1993-03-16	Apogee Acoustics, Inc.	Acoustical ribbon transducer loudspeaker system
US5325439A (en) *	1993-10-13	1994-06-28	Smiley Jack R	Loudspeaker apparatus
WO1998020703A1 (en) *	1996-11-07	1998-05-14	Cerwin Vega, Inc.	Improved horn loaded pleated ribbon high frequency acoustic transducer with substantially uniform coupling
WO1998020705A1 (en) *	1996-11-08	1998-05-14	Cerwin Vega, Inc.	Improved suspension for high power pleated ribbon transducer
US6513624B2 (en)	2000-02-03	2003-02-04	C. Ronald Coffin	Loudspeaker enclosure
US20030183888A1 (en) *	2002-03-28	2003-10-02	Eyal Bar-Sadeh	Corrugated diaphragm
US20040213431A1 (en) *	2003-04-25	2004-10-28	Mello William Bernard	Electromagnetic audio transducer and or audio speaker
US20060078135A1 (en) *	2004-10-08	2006-04-13	Royer David E	Ribbon-microphone transducer
US7900337B2 (en) *	2004-10-21	2011-03-08	Shure Incorporated	Method of making composite acoustic transducers
DE602005005936T2 (de) *	2005-01-26	2009-06-04	Harman Becker Automotive Systems Gmbh	Elektroakusticher Wandler
EP1881732A1 (en) *	2006-06-21	2008-01-23	Harman/Becker Automotive Systems GmbH	Magnetic membrane suspension
DE102007029560B4 (de) *	2007-06-26	2010-02-18	Mundorf Eb Gmbh	Membrananordnung für einen Air-Motion-Transformer (AMT) und Schallwandler mit einer solchen Membrananordnung
DE102007062424B4 (de) *	2007-12-20	2010-02-04	Mundorf Eb Gmbh	Magnetantriebsvorrichtung für einen Schallwandler bzw. Lautsprecher-Anordnung mit mindestens einer AMT-Lautsprecher-Einheit
ES2376731B1 (es) *	2010-06-07	2013-02-01	Acústica Beyma, S.L.	Altavoz de diafragma plegado.
DK2848008T3 (en)	2012-05-09	2017-09-25	Christensen Audio Llc	OUTDOOR, WIDE-ANGLE SPEAKER DRIVER
ITRM20120603A1 (it) *	2012-11-29	2014-05-30	Acustica Beyma S L	Altoparlante con diaframma piegato
US11166105B2 (en)	2020-04-02	2021-11-02	Rex PRICE	Movable diaphragms

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3497642A (en) *	1966-02-28	1970-02-24	Intron Int Inc	Transducer diaphragm imbedded with conductively-coated ferromagnetic particles

1973
- 1973-01-08 US US00321826A patent/US3832499A/en not_active Expired - Lifetime
1974
- 1974-01-04 CA CA189,436A patent/CA979113A/en not_active Expired
- 1974-01-04 CH CH7074A patent/CH567855A5/xx not_active IP Right Cessation
- 1974-01-04 FR FR7400205A patent/FR2213631B1/fr not_active Expired
- 1974-01-07 SE SE7400170A patent/SE391101B/xx not_active IP Right Cessation
- 1974-01-08 IT IT47591/74A patent/IT1008673B/it active
- 1974-01-08 DE DE2400625A patent/DE2400625A1/de not_active Withdrawn
- 1974-01-08 AU AU64294/74A patent/AU6429474A/en not_active Expired
- 1974-01-08 GB GB79674A patent/GB1432721A/en not_active Expired
- 1974-01-08 JP JP512374A patent/JPS5542555B2/ja not_active Expired

Also Published As

Publication number	Publication date
GB1432721A (en)	1976-04-22
FR2213631A1 (it)	1974-08-02
US3832499A (en)	1974-08-27
JPS5542555B2 (it)	1980-10-31
JPS49110332A (it)	1974-10-21
SE391101B (sv)	1977-01-31
DE2400625A1 (de)	1974-07-11
FR2213631B1 (it)	1981-02-27
AU6429474A (en)	1975-07-10
CH567855A5 (it)	1975-10-15
IT1008673B (it)	1976-11-30

Publication	Publication Date	Title
CA989972A (en)	1976-05-25	Electroacoustic transducer
CA1013068A (en)	1977-06-28	Electrostatic transducer
CA971288A (en)	1975-07-15	Piezoelectric-type electroacoustic transducer
CA979113A (en)	1975-12-02	Electro-acoustic transducer
CA1034247A (en)	1978-07-04	Broad-band acoustic speaker
CA1017438A (en)	1977-09-13	Acoustic measurement
CA1018644A (en)	1977-10-04	Mechanical-electrical transducer
CA1021870A (en)	1977-11-29	Electro-acoustic transducer system
CA988434A (en)	1976-05-04	Acoustic horn
CA964760A (en)	1975-03-18	Electro acoustic transducers
CA963570A (en)	1975-02-25	Electroacoustic transducer
CA963571A (en)	1975-02-25	Transducer
CA982687A (en)	1976-01-27	Electro-acoustic transducer
CA1005294A (en)	1977-02-15	Diaphragm
CA1006969A (en)	1977-03-15	Piezoelectric transducer
AU499523B2 (en)	1979-04-26	Electroacoustic transducer
CA999964A (en)	1976-11-16	Loudspeaker
CA969637A (en)	1975-06-17	Pressure-to-electric transducer
AU461117B2 (en)	1975-05-15	Electroacoustic transducer
AU6687974A (en)	1975-09-25	Electro-acoustic transducers
CA975461A (en)	1975-09-30	Electroacoustic transducer having an inverted diaphragm
CA1001293A (en)	1976-12-07	Electrostatic transducer
CA981364A (en)	1976-01-06	Pressure transducer
AU465144B2 (en)	1975-08-28	Pressure transducers
CA908801A (en)	1972-08-29	Electro-acoustic transducer