EP0339425A3 - Speaker system - Google Patents

Speaker system Download PDF

Info

Publication number: EP0339425A3
Authority: EP; European Patent Office
Prior art keywords: speaker system; speaker
Prior art date: 1988-04-28
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

EP89106833A

Other versions

EP0339425A2 (en

EP0339425B1 (en

Inventor

Tadashi Tamura

Shuji Saiki

Kazue Sato

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.)

Panasonic Holdings Corp

Original Assignee

Matsushita Electric Industrial 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.)

1988-04-28

Filing date

1989-04-17

Publication date

1990-01-24

1988-04-28 Priority claimed from JP63106355A external-priority patent/JPH0775431B2/en

1988-05-02 Priority claimed from JP63109343A external-priority patent/JPH0775432B2/en

1989-04-17 Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd

1989-04-17 Priority to EP19890106833 priority Critical patent/EP0339425B1/en

1989-11-02 Publication of EP0339425A2 publication Critical patent/EP0339425A2/en

1990-01-24 Publication of EP0339425A3 publication Critical patent/EP0339425A3/en

1994-03-23 Application granted granted Critical

1994-03-23 Publication of EP0339425B1 publication Critical patent/EP0339425B1/en

2009-04-17 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers

Landscapes

Health & Medical Sciences (AREA)
Otolaryngology (AREA)
Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

EP19890106833 1988-04-28 1989-04-17 Speaker system Expired - Lifetime EP0339425B1 (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
EP19890106833 EP0339425B1 (en)	1988-04-28	1989-04-17	Speaker system

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
JP106355/88		1988-04-28
JP63106355A JPH0775431B2 (en)	1988-04-28	1988-04-28	Speaker system
JP63109343A JPH0775432B2 (en)	1988-05-02	1988-05-02	Speaker system
JP109343/88		1988-05-02
EP19890106833 EP0339425B1 (en)	1988-04-28	1989-04-17	Speaker system

Publications (3)

Publication Number	Publication Date
EP0339425A2 EP0339425A2 (en)	1989-11-02
EP0339425A3 true EP0339425A3 (en)	1990-01-24
EP0339425B1 EP0339425B1 (en)	1994-03-23

Family

ID=26446466

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19890106833 Expired - Lifetime EP0339425B1 (en)	1988-04-28	1989-04-17	Speaker system

Country Status (5)

Country	Link
EP (1)	EP0339425B1 (en)
BR (1)	BR8901979A (en)
DK (1)	DK170195B1 (en)
ES (1)	ES2050178T3 (en)
MX (1)	MX171080B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2302231B (en) *	1995-03-14	1999-01-13	Matsushita Electric Ind Co Ltd	Speaker system
GB2325586B (en) *	1995-03-14	1999-01-13	Matsushita Electric Ind Co Ltd	Speaker system
DE19611999C1 (en) *	1996-03-27	1997-07-17	Henkel Kgaa	Alkoxylated fatty acid alkyl ester preparation useful e.g. in dishwashing
US6008391A (en) *	1997-03-17	1999-12-28	Henkel Kommanditgesellschaft Auf Aktien	Process for preparing alkoxylated fatty acid alkyl esters
DE19909272A1 (en)	1999-03-03	2000-09-07	Cognis Deutschland Gmbh	Process for the production of alkoxylated nonionic surfactants
GB2464512B (en) *	2008-10-16	2012-11-28	Instigate Media Ltd	A sound source
US11310587B2 (en)	2019-10-08	2022-04-19	Bose Corporation	Horn loudspeakers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB402600A (en) *	1931-11-27	1933-12-07	Harold Lister Kirke	Improvements in or relating to loudspeakers
GB496504A (en) *	1937-06-25	1938-12-01	Murphy Radio Ltd	Improvements in loud speakers
US3187832A (en) *	1961-12-29	1965-06-08	Wharfedale Wireless Works Ltd	Loudspeaker assembly
DE1537620A1 (en) *	1967-11-14	1969-12-18	Isophon Werke Gmbh	Funnel loudspeaker assembly
EP0295644A2 (en) *	1987-06-16	1988-12-21	Matsushita Electric Industrial Co., Ltd.	Speaker system

1989
- 1989-04-17 ES ES89106833T patent/ES2050178T3/en not_active Expired - Lifetime
- 1989-04-17 EP EP19890106833 patent/EP0339425B1/en not_active Expired - Lifetime
- 1989-04-26 MX MX1581189A patent/MX171080B/en unknown
- 1989-04-27 BR BR898901979A patent/BR8901979A/en not_active IP Right Cessation
- 1989-04-27 DK DK204589A patent/DK170195B1/en not_active IP Right Cessation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB402600A (en) *	1931-11-27	1933-12-07	Harold Lister Kirke	Improvements in or relating to loudspeakers
GB496504A (en) *	1937-06-25	1938-12-01	Murphy Radio Ltd	Improvements in loud speakers
US3187832A (en) *	1961-12-29	1965-06-08	Wharfedale Wireless Works Ltd	Loudspeaker assembly
DE1537620A1 (en) *	1967-11-14	1969-12-18	Isophon Werke Gmbh	Funnel loudspeaker assembly
EP0295644A2 (en) *	1987-06-16	1988-12-21	Matsushita Electric Industrial Co., Ltd.	Speaker system

Also Published As

Publication number	Publication date
EP0339425A2 (en)	1989-11-02
MX171080B (en)	1993-09-29
DK170195B1 (en)	1995-06-06
BR8901979A (en)	1989-12-05
DK204589A (en)	1989-10-29
ES2050178T3 (en)	1994-05-16
EP0339425B1 (en)	1994-03-23
DK204589D0 (en)	1989-04-27

Legal Events

Date	Code	Title	Description
1989-09-16	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1989-11-02	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): ES IT SE
1989-12-04	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1990-01-24	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): ES IT SE
1990-06-27	17P	Request for examination filed	Effective date: 19900427
1992-04-22	17Q	First examination report despatched	Effective date: 19920310
1994-02-04	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1994-03-07	ITF	It: translation for a ep patent filed	Owner name: BARZANO' E ZANARDO ROMA S.P.A.
1994-03-23	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): ES IT SE
1994-04-30	ITTA	It: last paid annual fee
1994-05-16	REG	Reference to a national code	Ref country code: ES Ref legal event code: FG2A Ref document number: 2050178 Country of ref document: ES Kind code of ref document: T3
1995-01-26	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1995-01-26	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1995-01-31	EAL	Se: european patent in force in sweden	Ref document number: 89106833.0
1995-03-15	26N	No opposition filed
2005-04-06	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 20050406 Year of fee payment: 17
2006-04-18	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060418
2006-12-19	EUG	Se: european patent has lapsed
2008-07-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: ES Payment date: 20080423 Year of fee payment: 20
2008-09-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: IT Payment date: 20080426 Year of fee payment: 20
2009-06-26	REG	Reference to a national code	Ref country code: ES Ref legal event code: FD2A Effective date: 20090418
2009-07-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20090418

Publication	Publication Date	Title
EP0295644A3 (en)	1990-01-10	Speaker system
GB2224181B (en)	1993-05-19	Telephone system
EP0295641A3 (en)	1990-12-27	Loudspeaker system
EP0410352A3 (en)	1992-02-12	Loudspeaker system
GB8902887D0 (en)	1989-03-30	Speaker assembly
EP0333133A3 (en)	1990-09-19	Speaker system
EP0453230A3 (en)	1992-10-14	Speaker system
GB2191910B (en)	1989-12-20	Speaker system
GB2195218B (en)	1990-02-21	Speaker unit
AU5225590A (en)	1990-10-04	Speaker system
AU4491889A (en)	1990-06-26	Loudspeaker system
GB8812729D0 (en)	1988-06-29	Speaker system
ZA897764B (en)	1990-08-29	Tilt-compensation system
EP0339425A3 (en)	1990-01-24	Speaker system
GB8800879D0 (en)	1988-02-17	Location system
GB8912771D0 (en)	1989-07-19	Auto-bracketing system
GB2220183B (en)	1993-01-20	Car-on-track system
GB8916896D0 (en)	1989-09-06	Structural system
GB8928352D0 (en)	1990-02-21	Loudspeaker system
GB2238206B (en)	1994-03-30	Speaker system
GB8811069D0 (en)	1988-06-15	Background music system
ZA892873B (en)	1989-12-27	Speaker system
GB8826269D0 (en)	1988-12-14	Stereo speaker
GB2220116B (en)	1992-07-22	Microphone
GB8727343D0 (en)	1987-12-23	Speaker