GB9022553D0 - Speaker assembly - Google Patents

Speaker assembly

Info

Publication number
GB9022553D0
GB9022553D0 GB909022553A GB9022553A GB9022553D0 GB 9022553 D0 GB9022553 D0 GB 9022553D0 GB 909022553 A GB909022553 A GB 909022553A GB 9022553 A GB9022553 A GB 9022553A GB 9022553 D0 GB9022553 D0 GB 9022553D0
Authority
GB
United Kingdom
Prior art keywords
speaker assembly
speaker
assembly
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Withdrawn
Application number
GB909022553A
Other versions
GB2248996A (en
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.)
Canon Technology Europe Ltd
Original Assignee
Canon Research Centre Europe 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.)
Filing date
Publication date
Application filed by Canon Research Centre Europe Ltd filed Critical Canon Research Centre Europe Ltd
Priority to GB9022553A priority Critical patent/GB2248996A/en
Publication of GB9022553D0 publication Critical patent/GB9022553D0/en
Priority to GB9111775A priority patent/GB2248997B/en
Priority to JP51650291A priority patent/JP3426598B2/en
Priority to US08/030,241 priority patent/US5418336A/en
Priority to AU87239/91A priority patent/AU8723991A/en
Priority to PCT/GB1991/001806 priority patent/WO1992007449A1/en
Priority to EP91918127A priority patent/EP0577601A1/en
Publication of GB2248996A publication Critical patent/GB2248996A/en
Withdrawn legal-status Critical Current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
    • H04R1/32—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)
GB9022553A 1990-10-17 1990-10-17 Speaker assembly Withdrawn GB2248996A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB9022553A GB2248996A (en) 1990-10-17 1990-10-17 Speaker assembly
GB9111775A GB2248997B (en) 1990-10-17 1991-05-31 Sound output device
JP51650291A JP3426598B2 (en) 1990-10-17 1991-10-16 Sound output device
US08/030,241 US5418336A (en) 1990-10-17 1991-10-16 Sound output device
AU87239/91A AU8723991A (en) 1990-10-17 1991-10-16 Sound output device
PCT/GB1991/001806 WO1992007449A1 (en) 1990-10-17 1991-10-16 Sound output device
EP91918127A EP0577601A1 (en) 1990-10-17 1991-10-16 Sound output device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9022553A GB2248996A (en) 1990-10-17 1990-10-17 Speaker assembly

Publications (2)

Publication Number Publication Date
GB9022553D0 true GB9022553D0 (en) 1990-11-28
GB2248996A GB2248996A (en) 1992-04-22

Family

ID=10683871

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9022553A Withdrawn GB2248996A (en) 1990-10-17 1990-10-17 Speaker assembly
GB9111775A Expired - Fee Related GB2248997B (en) 1990-10-17 1991-05-31 Sound output device

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9111775A Expired - Fee Related GB2248997B (en) 1990-10-17 1991-05-31 Sound output device

Country Status (1)

Country Link
GB (2) GB2248996A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU8723991A (en) * 1990-10-17 1992-05-20 Canon Research Centre Europe Ltd Sound output device
GB2273847A (en) * 1992-12-22 1994-06-29 Canon Res Ct Europe Ltd Loudspeaker having acoustic mirror.
GB2322727A (en) * 1997-02-27 1998-09-02 Fulleon Ltd Sounder device
US6068080A (en) * 1998-04-13 2000-05-30 Lacarrubba; Emanuel Apparatus for the redistribution of acoustic energy
US8160285B2 (en) 2005-09-13 2012-04-17 Mike Thomas Aps Waveguide unit

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB375598A (en) * 1930-08-14 1932-06-30 Radio Electr Soc Fr Improvements in and relating to loud speakers and like apparatus
GB623205A (en) * 1943-06-07 1949-05-13 Standard Telephones Cables Ltd Improvements in or relating to loudspeakers
GB744167A (en) * 1952-11-19 1956-02-01 Tannoy Ltd Improvements relating to loudspeakers
US2956636A (en) * 1956-06-11 1960-10-18 Sipko L Boersma Loudspeaker
IT1086464B (en) * 1977-09-06 1985-05-28 Selmin Sas METHOD AND DEVICES FOR OMNIDIRECTIONAL IRRADIATION OF SOUND WAVES
US4328400A (en) * 1979-06-30 1982-05-04 Pioneer Electronic Corporation Coaxial multi-way planar diaphragm type loudspeaker system
GB2120101B (en) * 1982-05-21 1985-07-31 Kellie And Son Limited Robert Knee joint
DE3378559D1 (en) * 1982-06-01 1988-12-29 Harman Int Ind Multi-driver-loudspeaker
GB2139040B (en) * 1983-04-25 1986-07-30 Tannoy Ltd Moving coil loudspeakers
GB2184323A (en) * 1985-12-12 1987-06-17 Midlen Trading Corp Loudspeaker system
JP2823157B2 (en) * 1986-04-01 1998-11-11 キヤノン株式会社 Audio output system
US5144670A (en) * 1987-12-09 1992-09-01 Canon Kabushiki Kaisha Sound output system
US4907671A (en) * 1988-04-08 1990-03-13 Unique Musical Products, Inc. Wide dispersion reflector
ES1008181Y (en) * 1988-11-07 1989-09-01 Gadea Veses Javier ACOUSTIC BOX FOR SOUND TRANSDUCTION.

Also Published As

Publication number Publication date
GB2248996A (en) 1992-04-22
GB9111775D0 (en) 1991-07-24
GB2248997B (en) 1995-03-01
GB2248997A (en) 1992-04-22

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)