EP0480087A1 - Haut-parleur à basse fréquence - Google Patents
Haut-parleur à basse fréquence Download PDFInfo
- Publication number
- EP0480087A1 EP0480087A1 EP90119419A EP90119419A EP0480087A1 EP 0480087 A1 EP0480087 A1 EP 0480087A1 EP 90119419 A EP90119419 A EP 90119419A EP 90119419 A EP90119419 A EP 90119419A EP 0480087 A1 EP0480087 A1 EP 0480087A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acoustic pipe
- air chamber
- low sound
- loudspeaker
- loudspeaker system
- Prior art date
- 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.)
- Withdrawn
Links
- 230000011514 reflex Effects 0.000 claims abstract description 27
- 238000005192 partition Methods 0.000 claims description 13
- 230000002238 attenuated effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
Images
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
- H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
- H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line 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
- H04R1/28—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
- H04R1/28—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
- H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
- H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker transducers
Definitions
- the acoustic pipe is adapted to communicate with the air chamber via an aperture of the acoustic pipe. Therefore, high sound components generated by the loudspeaker unit are attenuated by the filtering effect of the air chamber.
- sounds radiated from the back side 2a of the loudspeaker unit 2 and guided via the acoustic pipe 4 to the aperture 8 formed at the other end 4c have low sound components, at the aperture 8, of approximately the opposite phase to the phase at the back side 2a and of approximately the same frequency where the half wavelength stands in the acoustic pipe 4 of the low sound loudspeaker system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP90119419A EP0480087A1 (fr) | 1990-10-10 | 1990-10-10 | Haut-parleur à basse fréquence |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP90119419A EP0480087A1 (fr) | 1990-10-10 | 1990-10-10 | Haut-parleur à basse fréquence |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0480087A1 true EP0480087A1 (fr) | 1992-04-15 |
Family
ID=8204599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90119419A Withdrawn EP0480087A1 (fr) | 1990-10-10 | 1990-10-10 | Haut-parleur à basse fréquence |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0480087A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2256343A (en) * | 1991-05-29 | 1992-12-02 | Hughes Aircraft Co | High efficiency low frequency speaker system |
WO1997008916A1 (fr) * | 1995-08-25 | 1997-03-06 | Britannia Investment Corporation | Enceinte bass reflex perfectionnee |
CN1062681C (zh) * | 1994-05-09 | 2001-02-28 | 株式会社日立制作所 | 显示设备 |
GB2408676A (en) * | 2003-12-05 | 2005-06-08 | Peter Roots | Loudspeaker stand with resonating tube |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2224919A (en) * | 1937-03-31 | 1940-12-17 | Rca Corp | Loud-speaker |
DE3214226A1 (de) * | 1982-04-17 | 1983-10-20 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Lautsprecher mit schallumwegleitung |
US4875546A (en) * | 1988-06-02 | 1989-10-24 | Teledyne Industries, Inc. | Loudspeaker with acoustic band-pass filter |
-
1990
- 1990-10-10 EP EP90119419A patent/EP0480087A1/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2224919A (en) * | 1937-03-31 | 1940-12-17 | Rca Corp | Loud-speaker |
DE3214226A1 (de) * | 1982-04-17 | 1983-10-20 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Lautsprecher mit schallumwegleitung |
US4875546A (en) * | 1988-06-02 | 1989-10-24 | Teledyne Industries, Inc. | Loudspeaker with acoustic band-pass filter |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN, vol. 8, no. 39 (E-228)[1476], 21st February 1984; & JP-A-58 196 797 (MATSUSHITA K.K.) 16-11-1983 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2256343A (en) * | 1991-05-29 | 1992-12-02 | Hughes Aircraft Co | High efficiency low frequency speaker system |
CN1062681C (zh) * | 1994-05-09 | 2001-02-28 | 株式会社日立制作所 | 显示设备 |
WO1997008916A1 (fr) * | 1995-08-25 | 1997-03-06 | Britannia Investment Corporation | Enceinte bass reflex perfectionnee |
US5696357A (en) * | 1995-08-25 | 1997-12-09 | Polk Investment Corporation | Bass-reflex loudspeaker |
GB2408676A (en) * | 2003-12-05 | 2005-06-08 | Peter Roots | Loudspeaker stand with resonating tube |
GB2408676B (en) * | 2003-12-05 | 2009-01-07 | Peter Roots | Hifi speaker stand |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5197103A (en) | Low sound loudspeaker system | |
US5471019A (en) | Multiple chamber loudspeaker system | |
KR101217411B1 (ko) | 베이스 리플렉스형 스피커 장치, 스피커 박스 및 화상 표시장치 | |
CA1146083A (fr) | Haut-parleur | |
US4942939A (en) | Speaker system with folded audio transmission passage | |
US5097513A (en) | Speaker system enclosure integrated with amplifier circuit board | |
US3356179A (en) | High fidelity speaker enclosure | |
US7207413B2 (en) | Closed loop embedded audio transmission line technology for loudspeaker enclosures and systems | |
EP0453230B1 (fr) | Système de haut-parleur | |
US5335283A (en) | Loudspeaker apparatus for electronic keyboard musical instrument | |
US4817168A (en) | Directional microphone | |
JP3611854B2 (ja) | スピーカ・システム | |
US5296656A (en) | Sound collecting and concentrating device for attaching to the back of multiple loudspeakers | |
US4452333A (en) | Speaker system | |
EP1452066B1 (fr) | Systeme de haut-parleur resonnant et procede de fabrication associe | |
EP0480087A1 (fr) | Haut-parleur à basse fréquence | |
EP1736029A1 (fr) | Enceinte acoustique repartie | |
JPH03108999A (ja) | スピーカーシステム | |
JPH0633749Y2 (ja) | 低音再生用スピーカシステム | |
JP3473279B2 (ja) | スピーカ装置 | |
JPH0787628B2 (ja) | 低音再生用スピーカシステム | |
JP2579365Y2 (ja) | 低音用スピーカシステムの構造 | |
JP2784063B2 (ja) | 低音ステレオ再生装置 | |
JPH0470199A (ja) | 位相反転型スピーカーシステム | |
CN112929770A (zh) | 声腔结构及音箱 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
17P | Request for examination filed |
Effective date: 19921016 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: KABUSHIKI KAISHA KENWOOD |
|
17Q | First examination report despatched |
Effective date: 19940413 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: KABUSHIKI KAISHA KENWOOD |
|
18W | Application withdrawn |
Withdrawal date: 19940811 |