GB9522905D0 - Loudspeaker with short circuit rings at the voice coil - Google Patents

Loudspeaker with short circuit rings at the voice coil

Info

Publication number: GB9522905D0
Authority: GB; United Kingdom
Prior art keywords: loudspeaker; short circuit; voice coil; circuit rings; rings
Prior art date: 1993-05-10
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.): Granted

Application number

GBGB9522905.0A

Other versions

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.)

Scan Speak AS

Original Assignee

Scan Speak AS

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.)

1993-05-10

Filing date

1994-05-10

Publication date

1996-01-10

1994-05-10 Application filed by Scan Speak AS filed Critical Scan Speak AS

1996-01-10 Publication of GB9522905D0 publication Critical patent/GB9522905D0/en

1996-02-28 Publication of GB2292651A publication Critical patent/GB2292651A/en

1997-04-02 Application granted granted Critical

1997-04-02 Publication of GB2292651B publication Critical patent/GB2292651B/en

2014-05-10 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- H04R9/025—Magnetic circuit
- 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

Landscapes

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

GB9522905A 1993-05-10 1994-05-10 Loudspeaker with short circuit rings at the voice coil Expired - Lifetime GB2292651B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DK54093A DK54093D0 (en)	1993-05-10	1993-05-10	SPEAKER
PCT/DK1994/000186 WO1994027413A1 (en)	1993-05-10	1994-05-10	Loudspeaker with short circuit rings at the voice coil

Publications (3)

Publication Number	Publication Date
GB9522905D0 true GB9522905D0 (en)	1996-01-10
GB2292651A GB2292651A (en)	1996-02-28
GB2292651B GB2292651B (en)	1997-04-02

Family

ID=8094700

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB9522905A Expired - Lifetime GB2292651B (en)	1993-05-10	1994-05-10	Loudspeaker with short circuit rings at the voice coil

Country Status (5)

Country	Link
AU (1)	AU6720694A (en)
DE (2)	DE4493008T1 (en)
DK (2)	DK54093D0 (en)
GB (1)	GB2292651B (en)
WO (1)	WO1994027413A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19637847A1 (en) *	1996-09-17	1998-03-19	Nokia Deutschland Gmbh	Electroacoustic transducer design for radiating broad-band audio signals
ATE414395T1 (en) *	1998-03-19	2008-11-15	Jbl Inc	SHORT CIRCUIT RINGS FOR SPEAKER DRIVE WITH DOUBLE COILS AND DOUBLE COLUMNS
EP1641315B1 (en) *	2003-06-18	2012-11-14	Yu Yao Temperature Instrument Factory Co., Ltd.	A low-inductance electromagnetic drive without driving the magnetic flux circuit
EP2833648B1 (en) *	2013-08-01	2016-04-27	Harman International Industries, Inc.	Electrodynamic loudspeaker with conducting elements
WO2022235177A2 (en) *	2021-05-05	2022-11-10	Андрей ХРОМОВ	Quick-detachable module for increasing magnetic flux density in a magnetic gap of an electrodynamic loudspeaker

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2900427B1 (en) *	1979-01-08	1979-08-02	Licentia Gmbh	Dynamic transducer with a voice coil in an air gap filled with a magnetic fluid
DE3046551A1 (en) *	1980-12-10	1982-07-22	Isophon-Werke Gmbh, 1000 Berlin	Dynamic loudspeaker assembly - has screen below and above air gap to reduce distortion
DK148050C (en) *	1982-01-18	1985-06-24	Vifa Aktieselskabet Videbaek H	ELECTRODYNAMIC SPEED CIRCUIT DEVICE
GB2155733B (en) *	1983-12-03	1987-10-21	Pioneer Electronic Corp	Voice coil speaker
DE4041858A1 (en) *	1990-12-24	1992-07-02	Nokia Unterhaltungselektronik	DRIVE SYSTEM FOR LONG-HUBBED LOW SPEAKER

1993
- 1993-05-10 DK DK54093A patent/DK54093D0/en not_active Application Discontinuation
1994
- 1994-05-10 WO PCT/DK1994/000186 patent/WO1994027413A1/en active Application Filing
- 1994-05-10 AU AU67206/94A patent/AU6720694A/en not_active Abandoned
- 1994-05-10 DE DE4493008T patent/DE4493008T1/en not_active Expired - Lifetime
- 1994-05-10 GB GB9522905A patent/GB2292651B/en not_active Expired - Lifetime
- 1994-05-10 DE DE4493008A patent/DE4493008B4/en not_active Expired - Lifetime
1995
- 1995-11-08 DK DK199501244A patent/DK176300B1/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
DK176300B1 (en)	2007-06-25
AU6720694A (en)	1994-12-12
GB2292651A (en)	1996-02-28
DK124495A (en)	1995-11-08
DK54093D0 (en)	1993-05-10
GB2292651B (en)	1997-04-02
WO1994027413A1 (en)	1994-11-24
DE4493008T1 (en)	1996-05-09
DE4493008B4 (en)	2006-07-20

Publication	Publication Date	Title
DE69332765D1 (en)	2003-04-17	PHONE headset
EP0595169A3 (en)	1995-01-11	Loudspeaker assembly.
GB2261794B (en)	1995-06-07	Loudspeaker
HUT60881A (en)	1992-10-28	Auto loudspeaker
GB9026679D0 (en)	1991-01-23	Loudspeaker
GB2278251B (en)	1997-04-02	Speaker
GB2292651B (en)	1997-04-02	Loudspeaker with short circuit rings at the voice coil
GB2297454B (en)	1997-11-12	Loudspeaker
GB2256560B (en)	1994-11-23	Loudspeaker
EP0587910A4 (en)	1995-01-18	Speaker.
GB9022553D0 (en)	1990-11-28	Speaker assembly
GB9123833D0 (en)	1992-01-02	Loudspeaker
EP0578020A3 (en)	1995-09-27	Hearing aid with an integrated circuit
GB9317345D0 (en)	1993-10-06	Loudspeaker
GB2281469B (en)	1997-04-23	Loudspeakers
GB2278974B (en)	1997-07-16	Loudspeaker antivibrator
GB9423961D0 (en)	1995-01-11	Electrodynamic loudspeaker with small voice coil inductance
KR940027843U (en)	1994-12-10	Speaker magnetic circuit
GB9310903D0 (en)	1993-07-14	Curved loudspeaker
KR960026257U (en)	1996-07-22	Multi-Output Speaker Magnetic Circuit
GB9309227D0 (en)	1993-06-16	Loudspeakers
GB9316908D0 (en)	1993-09-29	Loudspeakers
CA73390S (en)	1993-11-12	Outdoor speaker
GB9319775D0 (en)	1993-11-10	Loudspeaker assenbly
CA70048S (en)	1992-02-07	Loudspeaker

Legal Events

Date	Code	Title	Description
2014-06-04	PE20	Patent expired after termination of 20 years	Expiry date: 20140509