GB8829125D0 - Improvements relating to sound reflection devices - Google Patents

Improvements relating to sound reflection devices

Info

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
Application number
GB888829125A
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.)
PEARL ROGER G
Original Assignee
PEARL ROGER G
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.)
Filing date
Publication date
Application filed by PEARL ROGER G filed Critical PEARL ROGER G
Priority to GB888829125A priority Critical patent/GB8829125D0/en
Publication of GB8829125D0 publication Critical patent/GB8829125D0/en
Priority to EP19900900260 priority patent/EP0400133A1/en
Priority to PCT/GB1989/001499 priority patent/WO1990007103A1/en
Priority to AU47463/90A priority patent/AU4746390A/en
Priority to JP50084190A priority patent/JPH03505034A/en
Pending legal-status Critical Current

Links

GB888829125A 1988-12-14 1988-12-14 Improvements relating to sound reflection devices Pending GB8829125D0 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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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