GB8707400D0 - Sound output system - Google Patents

Sound output system

Info

Publication number
GB8707400D0
GB8707400D0 GB878707400A GB8707400A GB8707400D0 GB 8707400 D0 GB8707400 D0 GB 8707400D0 GB 878707400 A GB878707400 A GB 878707400A GB 8707400 A GB8707400 A GB 8707400A GB 8707400 D0 GB8707400 D0 GB 8707400D0
Authority
GB
United Kingdom
Prior art keywords
sound output
output system
sound
output
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.)
Granted
Application number
GB878707400A
Other versions
GB2188811A (en
GB2188811B (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 Inc
Original Assignee
Canon Inc
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 Inc filed Critical Canon Inc
Publication of GB8707400D0 publication Critical patent/GB8707400D0/en
Publication of GB2188811A publication Critical patent/GB2188811A/en
Application granted granted Critical
Publication of GB2188811B publication Critical patent/GB2188811B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
GB8707400A 1986-04-01 1987-03-27 Sound output system Expired - Lifetime GB2188811B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61075144A JP2823157B2 (en) 1986-04-01 1986-04-01 Audio output system

Publications (3)

Publication Number Publication Date
GB8707400D0 true GB8707400D0 (en) 1987-04-29
GB2188811A GB2188811A (en) 1987-10-07
GB2188811B GB2188811B (en) 1990-12-12

Family

ID=13567708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8707400A Expired - Lifetime GB2188811B (en) 1986-04-01 1987-03-27 Sound output system

Country Status (3)

Country Link
JP (1) JP2823157B2 (en)
DE (1) DE3710464A1 (en)
GB (1) GB2188811B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213677A (en) * 1987-12-09 1989-08-16 Canon Kk Sound output system
US5144670A (en) * 1987-12-09 1992-09-01 Canon Kabushiki Kaisha Sound output system
JPH0282189U (en) * 1988-12-05 1990-06-25
JPH02237297A (en) * 1989-03-10 1990-09-19 Canon Inc Audio output device
JPH02237296A (en) * 1989-03-10 1990-09-19 Canon Inc Audio output device
GB2230408A (en) * 1989-03-17 1990-10-17 Dimitris Lioupis Loudspeakers
JP2771003B2 (en) * 1990-01-23 1998-07-02 キヤノン株式会社 Audio mirror speaker
NL9000670A (en) * 1990-03-22 1991-10-16 Hendrik Vastenhoud DEVICE FOR SOUND PLAYBACK.
WO1992007449A1 (en) * 1990-10-17 1992-04-30 Canon Research Centre Europe Ltd Sound output device
GB2248996A (en) * 1990-10-17 1992-04-22 Canon Res Ct Europe Ltd Speaker assembly
GB2256773A (en) * 1991-06-12 1992-12-16 Canon Res Ct Europe Ltd Loudspeaker uinit
DE9205731U1 (en) * 1992-04-29 1992-08-20 Schoor, Bodo, 3404 Adelebsen Speaker arrangement
GB2269959B (en) * 1992-08-19 1996-03-06 Canon Audio Ltd Sound output
JP3358836B2 (en) * 1992-12-25 2002-12-24 株式会社東芝 Reflective speaker system
DE4440583C2 (en) * 1994-11-14 2002-02-28 Albert Baur Speaker Light Combination
GB2305062B (en) * 1995-09-06 2000-03-22 Thomas Davies Richard John Double accoustic deflector
US20030219133A1 (en) 2001-10-24 2003-11-27 Acentech, Inc. Sound masking system
DE102021003110A1 (en) 2021-06-17 2023-01-05 Thilo Hinterberger Loudspeaker design with reflectors for improved partial room sound reinforcement with multi-way loudspeaker boxes

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR605534A (en) * 1924-11-25 1926-05-28
GB441061A (en) * 1934-07-04 1936-01-06 Robert Rodger Glen Improvements in or relating to loudspeakers and the like
US2096192A (en) * 1937-07-01 1937-10-19 Aston L Moore Loudspeaker unit
GB653263A (en) * 1947-10-30 1951-05-09 C M C Switchmatic Ltd Improvements in mountings for loudspeakers
NL191082B (en) * 1953-10-02 Mirowski Mieczyslaw Implantable automatic cardioverter / defibrillator system.
GB928377A (en) * 1959-01-27 1963-06-12 Philips Electrical Ind Ltd Improvements in or relating to sound reproducing devices comprising the combination of a conical loudspeaker and a reflector
FR1227457A (en) * 1959-03-07 1960-08-22 Improvements to sound transmitters comprising an acoustic source and a reflector
DE2236374C3 (en) * 1972-07-25 1975-01-16 Josef Wilhelm 8725 Arnstein Manger Electroacoustic transducer system
US3819005A (en) * 1973-01-22 1974-06-25 J Westlund Loudspeaker cabinet with sound reflectors
JPS5216202Y2 (en) * 1974-09-05 1977-04-12
JPS5143805U (en) * 1974-09-30 1976-03-31
JPS54130015A (en) * 1977-12-05 1979-10-09 Bii Sumisu Roido Loudspeaker system
JPS603277B2 (en) * 1978-06-15 1985-01-26 ソニー株式会社 speaker device
GB2107956A (en) * 1981-10-20 1983-05-05 Norman Dusanek Woofer loudspeaker
JPS59121991U (en) * 1983-02-03 1984-08-16 パイオニア株式会社 Omnidirectional speaker system
US4530077A (en) * 1983-05-19 1985-07-16 Xecutek Corporation Efficient low cost transducer system
JPS60199296A (en) * 1984-03-23 1985-10-08 Mitsubishi Electric Corp Speaker device
DE8511970U1 (en) * 1985-04-23 1985-06-20 Geier, Dieter Speaker box
JPS61264896A (en) * 1985-05-20 1986-11-22 Mitsubishi Electric Corp Reflection type speaker system
DE8529497U1 (en) * 1985-10-17 1985-12-05 Nehring, Alejandro, 5401 Dörth Speaker box

Also Published As

Publication number Publication date
JPS62232297A (en) 1987-10-12
DE3710464C2 (en) 1992-11-05
GB2188811A (en) 1987-10-07
JP2823157B2 (en) 1998-11-11
GB2188811B (en) 1990-12-12
DE3710464A1 (en) 1987-10-15

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