NO151390C - Anordning ved trakthoeyttaler. - Google Patents

Anordning ved trakthoeyttaler.

Info

Publication number: NO151390C
Authority: NO; Norway
Prior art keywords: speakers; tract; tract speakers
Prior art date: 1981-02-18

Application number

NO813459A

Other languages

English (en)

Other versions

NO151390B (no

NO813459L (no

Inventor

Yoshishige Shintaku

Original Assignee

Ibuki Kogyo Co Ltd

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.)

1981-02-18

Filing date

1981-10-14

Publication date

1985-03-27

1981-10-14 Application filed by Ibuki Kogyo Co Ltd filed Critical Ibuki Kogyo Co Ltd

1982-08-19 Publication of NO813459L publication Critical patent/NO813459L/no

1984-12-17 Publication of NO151390B publication Critical patent/NO151390B/no

1985-03-27 Publication of NO151390C publication Critical patent/NO151390C/no

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
- H04R9/022—Cooling arrangements

Landscapes

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

NO813459A 1981-02-18 1981-10-14 Anordning ved trakthoeyttaler. NO151390C (no)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP56022527A JPS57136896A (en)	1981-02-18	1981-02-18	Horn speaker

Publications (3)

Publication Number	Publication Date
NO813459L NO813459L (no)	1982-08-19
NO151390B NO151390B (no)	1984-12-17
NO151390C true NO151390C (no)	1985-03-27

Family

ID=12085258

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO813459A NO151390C (no)	1981-02-18	1981-10-14	Anordning ved trakthoeyttaler.

Country Status (7)

Country	Link
US (1)	US4378471A (no)
JP (1)	JPS57136896A (no)
DE (1)	DE3141038C2 (no)
GB (1)	GB2110051B (no)
NL (1)	NL182119C (no)
NO (1)	NO151390C (no)
SE (1)	SE449547B (no)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4790020A (en) *	1987-10-26	1988-12-06	Lin Kuang Yao	Horn type loudspeakers
US4982436A (en) *	1988-12-05	1991-01-01	Gai-Tronics	Dual horn folded soundpath loudspeaker
US6334505B1 (en) *	1990-11-15	2002-01-01	Ming-Chiang Li	Optimum edges for speakers and musical instruments
JP3209350B2 (ja) *	1991-09-10	2001-09-17	ソニー株式会社	ホーンスピーカ
US5359664A (en) *	1992-03-31	1994-10-25	Richard Steuben	Loudspeaker system
US5726396A (en) *	1994-12-02	1998-03-10	Erath; Louis W.	Folded acoustical horn
US6127918A (en) *	1999-05-26	2000-10-03	Lin; Kuang-Yao	Buzzer with a sound film and equalizing or whirlpool sound mechanism
GB9916380D0 (en) *	1999-07-14	1999-09-15	Funktion One Research	Loudspeaker
US6721435B2 (en) *	2000-02-22	2004-04-13	Babb Laboratories	Acoustic loudspeaker with energy absorbing bearing and voice coil, and selective sound dampening and dispersion
US7177439B2 (en) *	2003-03-06	2007-02-13	Peavey Electronics Corporation	Methods and apparatus for dissipating heat in a voice coil
ES2325518B1 (es) *	2008-03-05	2010-07-20	Acustica Beyma, S.L.	Altavoz autorrefrigerado perfeccionado.
US9325183B2 (en) *	2012-12-21	2016-04-26	Nokia Technologies Oy	Reducing inductive heating
US9270797B2 (en) *	2013-02-27	2016-02-23	Nokia Technologies Oy	Reducing inductive heating
CN104105039A (zh) *	2014-08-12	2014-10-15	胡达广	高效宽频扬声器
CN104786926B (zh) *	2015-03-18	2016-10-05	朱幕松	高响度车载警报器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE902015C (de) *	1940-09-04	1954-01-18	Klangfilm Gmbh	Druckkammerlautsprecher
JPS5235294B2 (no) *	1971-12-17	1977-09-08
JPS53148425A (en) *	1977-05-31	1978-12-25	Kenkichi Tsukamoto	Electric sound transducer
US4336425A (en) *	1980-05-06	1982-06-22	Renkus-Heinz, Inc.	High frequency compression driver and method of manufacture thereof

1981
- 1981-02-18 JP JP56022527A patent/JPS57136896A/ja active Pending
- 1981-10-13 GB GB08130916A patent/GB2110051B/en not_active Expired
- 1981-10-14 NO NO813459A patent/NO151390C/no unknown
- 1981-10-15 DE DE3141038A patent/DE3141038C2/de not_active Expired
- 1981-10-16 US US06/312,172 patent/US4378471A/en not_active Expired - Fee Related
- 1981-10-16 SE SE8106130A patent/SE449547B/sv not_active IP Right Cessation
- 1981-10-26 NL NLAANVRAGE8104836,A patent/NL182119C/xx not_active IP Right Cessation

Also Published As

Publication number	Publication date
SE449547B (sv)	1987-05-04
JPS57136896A (en)	1982-08-24
DE3141038A1 (de)	1982-08-26
US4378471A (en)	1983-03-29
GB2110051B (en)	1984-12-05
NO151390B (no)	1984-12-17
NL8104836A (nl)	1982-09-16
DE3141038C2 (de)	1983-10-06
NL182119C (nl)	1988-01-04
NL182119B (nl)	1987-08-03
GB2110051A (en)	1983-06-08
SE8106130L (sv)	1982-08-19
NO813459L (no)	1982-08-19

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