GB1589998A - Multiple driver loudspeaker system - Google Patents

Multiple driver loudspeaker system Download PDF

Info

Publication number: GB1589998A
Authority: GB; United Kingdom
Prior art keywords: accordance; loudspeaker system; loudspeaker; drivers; port tube
Prior art date: 1976-09-02
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

GB32004/77A

Other languages

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.)

Bose Corp

Original Assignee

Bose Corp

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.)

1976-09-02

Filing date

1977-07-29

Publication date

1981-05-28

1976-09-02 Priority claimed from US05/719,949 external-priority patent/US4146744A/en

1976-09-02 Priority claimed from US05/719,943 external-priority patent/US4146745A/en

1977-07-29 Application filed by Bose Corp filed Critical Bose Corp

1981-05-28 Publication of GB1589998A publication Critical patent/GB1589998A/en

Status Expired legal-status Critical Current

Links

230000004044 response Effects 0.000 claims description 15
230000003595 spectral effect Effects 0.000 claims description 13
230000008878 coupling Effects 0.000 claims description 10
238000010168 coupling process Methods 0.000 claims description 10
238000005859 coupling reaction Methods 0.000 claims description 10
238000013022 venting Methods 0.000 claims description 7
238000013016 damping Methods 0.000 claims description 6
230000001747 exhibiting effect Effects 0.000 claims description 6
239000000463 material Substances 0.000 claims description 6
238000000926 separation method Methods 0.000 claims description 3
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
229910052782 aluminium Inorganic materials 0.000 claims description 2
238000002955 isolation Methods 0.000 claims description 2
239000002356 single layer Substances 0.000 claims description 2
239000006261 foam material Substances 0.000 claims 1
238000005192 partition Methods 0.000 description 9
239000004744 fabric Substances 0.000 description 5
230000013011 mating Effects 0.000 description 4
238000001746 injection moulding Methods 0.000 description 3
239000004033 plastic Substances 0.000 description 3
229920003023 plastic Polymers 0.000 description 3
241000239290 Araneae Species 0.000 description 2
PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
239000011358 absorbing material Substances 0.000 description 2
238000010586 diagram Methods 0.000 description 2
230000000694 effects Effects 0.000 description 2
239000004793 Polystyrene Substances 0.000 description 1
238000010521 absorption reaction Methods 0.000 description 1
230000000712 assembly Effects 0.000 description 1
238000000429 assembly Methods 0.000 description 1
230000008901 benefit Effects 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
230000000994 depressogenic effect Effects 0.000 description 1
239000006260 foam Substances 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
238000000034 method Methods 0.000 description 1
229920002223 polystyrene Polymers 0.000 description 1
238000003908 quality control method Methods 0.000 description 1
230000005855 radiation Effects 0.000 description 1
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238000012552 review Methods 0.000 description 1
239000007779 soft material Substances 0.000 description 1
230000007704 transition Effects 0.000 description 1

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
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
- H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type for loudspeaker transducers
- 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
- H04R1/227—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only using transducers reproducing the same frequency band

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)
Details Of Audible-Bandwidth Transducers (AREA)

GB32004/77A 1976-09-02 1977-07-29 Multiple driver loudspeaker system Expired GB1589998A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US05/719,949 US4146744A (en)	1976-09-02	1976-09-02	Low q multiple in phase high compliance driver ported loudspeaker enclosure
US05/719,943 US4146745A (en)	1976-09-02	1976-09-02	Loudspeaker enclosure with multiple acoustically isolated drivers and a common port

Publications (1)

Publication Number	Publication Date
GB1589998A true GB1589998A (en)	1981-05-28

Family

ID=27110169

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB32004/77A Expired GB1589998A (en)	1976-09-02	1977-07-29	Multiple driver loudspeaker system

Country Status (8)

Country	Link
JP (1)	JPS5330317A (de)
AU (1)	AU512097B2 (de)
DE (2)	DE2739523A1 (de)
FR (1)	FR2363955A1 (de)
GB (1)	GB1589998A (de)
IT (1)	IT1083817B (de)
NL (1)	NL7709527A (de)
SE (1)	SE415624B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2935212C2 (de) *	1979-08-31	1990-09-13	Blaupunkt-Werke Gmbh, 3200 Hildesheim	Schnellbefestigung für Lautsprecher
DE3682313D1 (de) *	1985-04-11	1991-12-12	Telefunken Fernseh & Rundfunk	Lautsprechereinheit.
DE3534521A1 (de) *	1985-09-27	1987-04-09	Newek Neue Elektronik Werke Gm	Lautsprechereinheit
DE3706157A1 (de) *	1987-02-26	1988-09-08	Electronic Werke Deutschland	Lautsprechereinheit
DE3918053A1 (de) *	1989-06-02	1990-12-06	Nokia Unterhaltungselektronik	Lautsprecher mit bajonettverschluss

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3038964A (en) *	1956-08-06	1962-06-12	Amar G Bose	Loudspeaker system
US3582553A (en) *	1967-12-04	1971-06-01	Bose Corp	Loudspeaker system
US3688864A (en) *	1970-04-16	1972-09-05	Talbot American Corp	Infinite dynamic damping loudspeaker systems

1977
- 1977-05-31 FR FR7716609A patent/FR2363955A1/fr not_active Withdrawn
- 1977-06-13 JP JP6977877A patent/JPS5330317A/ja active Granted
- 1977-06-13 IT IT24616/77A patent/IT1083817B/it active
- 1977-07-14 SE SE7708202A patent/SE415624B/xx unknown
- 1977-07-29 GB GB32004/77A patent/GB1589998A/en not_active Expired
- 1977-08-12 AU AU27874/77A patent/AU512097B2/en not_active Expired
- 1977-08-30 NL NL7709527A patent/NL7709527A/xx not_active Application Discontinuation
- 1977-09-02 DE DE19772739523 patent/DE2739523A1/de active Granted
- 1977-09-02 DE DE2760480A patent/DE2760480C2/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
DE2760480C2 (de)	1992-07-09
AU512097B2 (en)	1980-09-25
DE2739523C2 (de)	1992-03-05
IT1083817B (it)	1985-05-25
SE415624B (sv)	1980-10-13
JPS617799B2 (de)	1986-03-08
AU2787477A (en)	1979-02-15
NL7709527A (nl)	1978-03-06
FR2363955A1 (fr)	1978-03-31
DE2739523A1 (de)	1978-03-16
SE7708202L (sv)	1978-03-03
JPS5330317A (en)	1978-03-22

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Legal Events

Date	Code	Title	Description
1981-10-14	PS	Patent sealed [section 19, patents act 1949]
1997-08-20	PE20	Patent expired after termination of 20 years	Effective date: 19970728