GB8829125D0 - Improvements relating to sound reflection devices - Google Patents
Improvements relating to sound reflection devicesInfo
- Publication number
- GB8829125D0 GB8829125D0 GB888829125A GB8829125A GB8829125D0 GB 8829125 D0 GB8829125 D0 GB 8829125D0 GB 888829125 A GB888829125 A GB 888829125A GB 8829125 A GB8829125 A GB 8829125A GB 8829125 D0 GB8829125 D0 GB 8829125D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- improvements relating
- sound reflection
- reflection devices
- devices
- sound
- 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.)
- Pending
Links
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB888829125A GB8829125D0 (en) | 1988-12-14 | 1988-12-14 | Improvements relating to sound reflection devices |
EP19900900260 EP0400133A1 (en) | 1988-12-14 | 1989-12-14 | Sound reflection unit and audio loudspeaker unit comprising such a sound reflection unit |
PCT/GB1989/001499 WO1990007103A1 (en) | 1988-12-14 | 1989-12-14 | Sound reflection unit and audio loudspeaker unit comprising such a sound reflection unit |
AU47463/90A AU4746390A (en) | 1988-12-14 | 1989-12-14 | Sound reflection unit and an audio loudspeaker unit comprising such a sound reflection unit |
JP50084190A JPH03505034A (en) | 1988-12-14 | 1989-12-14 | Acoustic reflection unit and audio loudspeaker including the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB888829125A GB8829125D0 (en) | 1988-12-14 | 1988-12-14 | Improvements relating to sound reflection devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB8829125D0 true GB8829125D0 (en) | 1989-01-25 |
Family
ID=10648445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB888829125A Pending GB8829125D0 (en) | 1988-12-14 | 1988-12-14 | Improvements relating to sound reflection devices |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0400133A1 (en) |
JP (1) | JPH03505034A (en) |
AU (1) | AU4746390A (en) |
GB (1) | GB8829125D0 (en) |
WO (1) | WO1990007103A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9406006U1 (en) * | 1994-04-13 | 1994-07-21 | Baur Albert | Speaker box |
DE19527499C1 (en) * | 1995-07-27 | 1996-07-25 | Rudolf Mechow | Loudspeaker with conical reflector having median point of inflection e.g. for stereo audio equipment |
US6257365B1 (en) * | 1996-08-30 | 2001-07-10 | Mediaphile Av Technologies, Inc. | Cone reflector/coupler speaker system and method |
DE19716315C2 (en) * | 1997-04-18 | 2002-06-13 | Heinz Juergen Augustin | Omnidirectional loudspeaker system |
DE10216965C1 (en) * | 2002-04-16 | 2003-08-21 | Ipg Patentverwertungs Ges Ag C | Loudspeaker box has bass, medium tone and HF loudspeakers stacked along vertical axis with base of medium tone loudspeaker housing lying in plane of outer edge of bass loudspeaker membrane |
DE10222006B4 (en) * | 2002-05-17 | 2004-05-27 | Thomas Wolff | Speaker layout |
GB0305770D0 (en) * | 2003-03-13 | 2003-04-16 | Le Feuvre Nicholas P | Single drive transmission line loud speakers using sound absorbent case construction |
DE102011016326B4 (en) * | 2011-04-01 | 2016-12-15 | Kerstin Brachaus-Mechow | Speaker layout |
DE202012000148U1 (en) | 2012-01-07 | 2012-03-06 | Jens Burmeister | Speaker arrangement with woofer and bass reflex tube |
US10341761B2 (en) | 2017-02-17 | 2019-07-02 | Tymphany Hk Limited | Acoustic waveguide for audio speaker |
CN110392323A (en) * | 2018-04-19 | 2019-10-29 | 惠州迪芬尼声学科技股份有限公司 | Loudspeaker and its acoustic diffusers |
EP3611934A1 (en) * | 2018-08-15 | 2020-02-19 | Tymphany HK Limited | Portable audio system with acoustic waveguide |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1086464B (en) * | 1977-09-06 | 1985-05-28 | Selmin Sas | METHOD AND DEVICES FOR OMNIDIRECTIONAL IRRADIATION OF SOUND WAVES |
US4348750A (en) * | 1979-08-06 | 1982-09-07 | Schwind David R | Energy control device |
US4588042A (en) * | 1984-07-23 | 1986-05-13 | Palet Timothy J | Parabolic speaker |
-
1988
- 1988-12-14 GB GB888829125A patent/GB8829125D0/en active Pending
-
1989
- 1989-12-14 EP EP19900900260 patent/EP0400133A1/en not_active Withdrawn
- 1989-12-14 JP JP50084190A patent/JPH03505034A/en active Pending
- 1989-12-14 AU AU47463/90A patent/AU4746390A/en not_active Abandoned
- 1989-12-14 WO PCT/GB1989/001499 patent/WO1990007103A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0400133A1 (en) | 1990-12-05 |
AU4746390A (en) | 1990-07-10 |
JPH03505034A (en) | 1991-10-31 |
WO1990007103A1 (en) | 1990-06-28 |
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