GB2188811B - Sound output system - Google Patents

Sound output system

Info

Publication number
GB2188811B
GB2188811B GB8707400A GB8707400A GB2188811B GB 2188811 B GB2188811 B GB 2188811B GB 8707400 A GB8707400 A GB 8707400A GB 8707400 A GB8707400 A GB 8707400A GB 2188811 B GB2188811 B GB 2188811B
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.)
Expired - Lifetime
Application number
GB8707400A
Other languages
English (en)
Other versions
GB8707400D0 (en
GB2188811A (en
Inventor
Hirokazu Negishi
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 (ja) 1986-04-01 1986-04-01 オーデイオ出力システム

Publications (3)

Publication Number Publication Date
GB8707400D0 GB8707400D0 (en) 1987-04-29
GB2188811A GB2188811A (en) 1987-10-07
GB2188811B true 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 (enrdf_load_stackoverflow)
DE (1) DE3710464A1 (enrdf_load_stackoverflow)
GB (1) GB2188811B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD334750S (en) 1990-08-03 1993-04-13 Canon Research Centre Europe Limited Loudspeaker

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 (enrdf_load_stackoverflow) * 1988-12-05 1990-06-25
JPH02237296A (ja) * 1989-03-10 1990-09-19 Canon Inc オーディオ出力装置
JPH02237297A (ja) * 1989-03-10 1990-09-19 Canon Inc オーディオ出力装置
GB2230408A (en) * 1989-03-17 1990-10-17 Dimitris Lioupis Loudspeakers
JP2771003B2 (ja) * 1990-01-23 1998-07-02 キヤノン株式会社 オーディオ・ミラー・スピーカ
NL9000670A (nl) * 1990-03-22 1991-10-16 Hendrik Vastenhoud Inrichting voor geluidsweergave.
US5418336A (en) * 1990-10-17 1995-05-23 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 (de) * 1992-04-29 1992-08-20 Schoor, Bodo, 3404 Adelebsen Lautsprecheranordnung
GB2269959B (en) * 1992-08-19 1996-03-06 Canon Audio Ltd Sound output
JP3358836B2 (ja) * 1992-12-25 2002-12-24 株式会社東芝 反射型スピーカシステム
DE4440583C2 (de) * 1994-11-14 2002-02-28 Albert Baur Lautsprecher-Leuchten-Kombination
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 (de) 2021-06-17 2023-01-05 Thilo Hinterberger Lautsprecherdesign mit Reflektoren zur verbesserten Teilraumbeschallung bei Mehrwege-Lautsprecherboxen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB248060A (en) * 1924-11-25 1926-02-25 Edward Alfred Graham Improvements in or relating to loud speaking telephonic receivers
GB441061A (en) * 1934-07-04 1936-01-06 Robert Rodger Glen Improvements in or relating to loudspeakers and the like
GB788934A (en) * 1953-10-02 1958-01-08 Carlsson Stig Sound reproducing system and apparatus
GB1472963A (en) * 1973-01-22 1977-05-11 Westlund J Loudspeaker assembly with sound reflectors
GB2107956A (en) * 1981-10-20 1983-05-05 Norman Dusanek Woofer loudspeaker
WO1984004589A1 (en) * 1983-05-19 1984-11-22 Xecutek Corp Efficient low cost transducer system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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 (fr) * 1959-03-07 1960-08-22 Perfectionnements apportés aux émetteurs de son comportant une source acoustique et un réflecteur
DE2236374C3 (de) * 1972-07-25 1975-01-16 Josef Wilhelm 8725 Arnstein Manger Elektroakustisches Wandlersystem
JPS5216202Y2 (enrdf_load_stackoverflow) * 1974-09-05 1977-04-12
JPS5143805U (enrdf_load_stackoverflow) * 1974-09-30 1976-03-31
JPS54130015A (en) * 1977-12-05 1979-10-09 Bii Sumisu Roido Loudspeaker system
JPS603277B2 (ja) * 1978-06-15 1985-01-26 ソニー株式会社 スピーカ装置
JPS59121991U (ja) * 1983-02-03 1984-08-16 パイオニア株式会社 無指向性スピ−カシステム
JPS60199296A (ja) * 1984-03-23 1985-10-08 Mitsubishi Electric Corp スピ−カ−装置
DE8511970U1 (de) * 1985-04-23 1985-06-20 Geier, Dieter Lautsprecherbox
JPS61264896A (ja) * 1985-05-20 1986-11-22 Mitsubishi Electric Corp 反射形スピ−カシステム
DE8529497U1 (de) * 1985-10-17 1985-12-05 Nehring, Alejandro, 5401 Dörth Lautsprecherbox

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB248060A (en) * 1924-11-25 1926-02-25 Edward Alfred Graham Improvements in or relating to loud speaking telephonic receivers
GB441061A (en) * 1934-07-04 1936-01-06 Robert Rodger Glen Improvements in or relating to loudspeakers and the like
GB788934A (en) * 1953-10-02 1958-01-08 Carlsson Stig Sound reproducing system and apparatus
GB1472963A (en) * 1973-01-22 1977-05-11 Westlund J Loudspeaker assembly with sound reflectors
GB2107956A (en) * 1981-10-20 1983-05-05 Norman Dusanek Woofer loudspeaker
WO1984004589A1 (en) * 1983-05-19 1984-11-22 Xecutek Corp Efficient low cost transducer system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD334750S (en) 1990-08-03 1993-04-13 Canon Research Centre Europe Limited Loudspeaker

Also Published As

Publication number Publication date
GB8707400D0 (en) 1987-04-29
JPS62232297A (ja) 1987-10-12
JP2823157B2 (ja) 1998-11-11
GB2188811A (en) 1987-10-07
DE3710464C2 (enrdf_load_stackoverflow) 1992-11-05
DE3710464A1 (de) 1987-10-15

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