DE3855887D1 - Stereophonisches Schallabgabesystem mit kontrollierter Richtwirkungscharakteristik - Google Patents

Stereophonisches Schallabgabesystem mit kontrollierter Richtwirkungscharakteristik

Info

Publication number
DE3855887D1
DE3855887D1 DE3855887T DE3855887T DE3855887D1 DE 3855887 D1 DE3855887 D1 DE 3855887D1 DE 3855887 T DE3855887 T DE 3855887T DE 3855887 T DE3855887 T DE 3855887T DE 3855887 D1 DE3855887 D1 DE 3855887D1
Authority
DE
Germany
Prior art keywords
delivery system
stereophonic sound
directivity characteristics
sound delivery
controlled directivity
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
DE3855887T
Other languages
English (en)
Other versions
DE3855887T2 (de
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
Priority claimed from GB8728793A external-priority patent/GB2213677A/en
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE3855887D1 publication Critical patent/DE3855887D1/de
Publication of DE3855887T2 publication Critical patent/DE3855887T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
DE3855887T 1987-12-09 1988-12-08 Stereophonisches Schallabgabesystem mit kontrollierter Richtwirkungscharakteristik Expired - Lifetime DE3855887T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8728793A GB2213677A (en) 1987-12-09 1987-12-09 Sound output system
GB888825881A GB8825881D0 (en) 1987-12-09 1988-11-04 Sound output system

Publications (2)

Publication Number Publication Date
DE3855887D1 true DE3855887D1 (de) 1997-05-28
DE3855887T2 DE3855887T2 (de) 1997-10-02

Family

ID=26293177

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3855887T Expired - Lifetime DE3855887T2 (de) 1987-12-09 1988-12-08 Stereophonisches Schallabgabesystem mit kontrollierter Richtwirkungscharakteristik

Country Status (4)

Country Link
US (1) US5144670A (de)
EP (2) EP0409360A3 (de)
JP (1) JP2840265B2 (de)
DE (1) DE3855887T2 (de)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB2245450A (en) * 1990-06-19 1992-01-02 Canon Kk Speaker for use in a sound output system
AU8723991A (en) * 1990-10-17 1992-05-20 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
GB2269959B (en) * 1992-08-19 1996-03-06 Canon Audio Ltd Sound output
GB2269960B (en) * 1992-08-20 1996-03-27 Canon Audio Ltd Sound output system
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
JPH06197293A (ja) * 1992-12-25 1994-07-15 Toshiba Corp テレビジョンセットのスピーカシステム
DE9408805U1 (de) * 1994-05-30 1994-09-01 Baur Albert Lautsprecher, insbesondere in Säulenform
US5661808A (en) 1995-04-27 1997-08-26 Srs Labs, Inc. Stereo enhancement system
US5850453A (en) 1995-07-28 1998-12-15 Srs Labs, Inc. Acoustic correction apparatus
GB2305062B (en) * 1995-09-06 2000-03-22 Thomas Davies Richard John Double accoustic deflector
US5970152A (en) * 1996-04-30 1999-10-19 Srs Labs, Inc. Audio enhancement system for use in a surround sound environment
US6257365B1 (en) * 1996-08-30 2001-07-10 Mediaphile Av Technologies, Inc. Cone reflector/coupler speaker system and method
US5730934A (en) * 1996-10-11 1998-03-24 Tetra Laval Holdings & Finance S.A. Method and apparatus for sterilizing packaging TRX-349
US5843374A (en) * 1996-10-11 1998-12-01 Tetra Laval Holdings & Finance, Sa Method and apparatus for sterilizing packaging
US5912976A (en) 1996-11-07 1999-06-15 Srs Labs, Inc. Multi-channel audio enhancement system for use in recording and playback and methods for providing same
US6281749B1 (en) 1997-06-17 2001-08-28 Srs Labs, Inc. Sound enhancement system
US6285772B1 (en) * 1999-07-20 2001-09-04 Umevoice, Inc. Noise control device
US7031474B1 (en) 1999-10-04 2006-04-18 Srs Labs, Inc. Acoustic correction apparatus
US7277767B2 (en) 1999-12-10 2007-10-02 Srs Labs, Inc. System and method for enhanced streaming audio
US6779318B2 (en) 2001-02-21 2004-08-24 The Coca-Cola Company System and method for continuously forming, sealing and filling flexible packages
US6405764B1 (en) 2001-02-21 2002-06-18 The Coca-Cola Company System and method for packaging of beverages in containers at controlled temperatures
US6443189B1 (en) 2001-02-21 2002-09-03 The Coca-Cola Company Valve assembly for filling containers
US20050079345A1 (en) * 2002-09-17 2005-04-14 Thomsen Susanne Dahl Polyolefin fibres and their use in the preparation of nonwovens with high bulk and resilience
US6820718B2 (en) * 2002-10-04 2004-11-23 Lacarrubba Emanuel Acoustic reproduction device with improved directional characteristics
JP2006157464A (ja) * 2004-11-29 2006-06-15 Kyocera Corp 音響装置
US7621369B2 (en) * 2006-06-16 2009-11-24 Graber Curtis E Acoustic energy projection system
US8050434B1 (en) 2006-12-21 2011-11-01 Srs Labs, Inc. Multi-channel audio enhancement system
DE102007053033A1 (de) 2007-11-07 2009-05-14 Robert Bosch Gmbh Überwachungseinrichtung für den toten Winkel bei Fahrzeugen sowie Verfahren
US20100177921A1 (en) * 2009-01-14 2010-07-15 Richard Bos Response speaker system
JP5955862B2 (ja) 2011-01-04 2016-07-20 ディーティーエス・エルエルシーＤｔｓ Ｌｌｃ 没入型オーディオ・レンダリング・システム
US9467772B2 (en) * 2011-07-15 2016-10-11 Kpo Innovation Ab Acoustical signal generator using two transducers and a reflector with a non-flat contour
US9164724B2 (en) 2011-08-26 2015-10-20 Dts Llc Audio adjustment system
DE102021003110A1 (de) 2021-06-17 2023-01-05 Thilo Hinterberger Lautsprecherdesign mit Reflektoren zur verbesserten Teilraumbeschallung bei Mehrwege-Lautsprecherboxen

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982372A (en) * 1957-05-16 1961-05-02 Benjamin W Lowell Loud speaker baffle having improved low frequency reproduction characteristics
US3765504A (en) * 1970-12-17 1973-10-16 Sansui Electric Co Speaker apparatus
JPS5213408B2 (de) * 1972-01-28 1977-04-14
JPS5131603Y2 (de) * 1972-05-02 1976-08-07
JPS53111701A (en) * 1977-02-21 1978-09-29 Shindo Chiyuushirou Stereo sound reproducer
US4348549A (en) * 1978-02-06 1982-09-07 Emmanuel Berlant Loudspeaker system
US4199657A (en) * 1978-07-21 1980-04-22 Harvey Lane Planar sound reproducing speaker system
US4357490A (en) * 1980-07-18 1982-11-02 Dickey Baron C High fidelity loudspeaker system for aurally simulating wide frequency range point source of sound
US4445227A (en) * 1981-12-28 1984-04-24 Magnavox Consumer Electronics Company Loudspeaker having improved directional characteristics
JPS60259094A (ja) * 1984-06-06 1985-12-21 Yoshiro Nakamatsu 三次元ソニツクシステム
JPS61219293A (ja) * 1985-03-25 1986-09-29 Matsushita Electric Ind Co Ltd 音場再生型スピ−カシステム
FR2582178A1 (fr) * 1985-04-18 1986-11-21 Marechal Richard Enceinte acoustique omnidirectionnelle presentant, a rendement constant, une reponse sur une large bande d'audio-frequences
JPS61264896A (ja) * 1985-05-20 1986-11-22 Mitsubishi Electric Corp 反射形スピ−カシステム
JP2823157B2 (ja) * 1986-04-01 1998-11-11 キヤノン株式会社 オーデイオ出力システム
US4836329A (en) * 1987-07-21 1989-06-06 Hughes Aircraft Company Loudspeaker system with wide dispersion baffle
US4907671A (en) * 1988-04-08 1990-03-13 Unique Musical Products, Inc. Wide dispersion reflector

Also Published As

Publication number Publication date
EP0320270B1 (de) 1997-04-23
DE3855887T2 (de) 1997-10-02
US5144670A (en) 1992-09-01
JP2840265B2 (ja) 1998-12-24
JPH01303000A (ja) 1989-12-06
EP0409360A2 (de) 1991-01-23
EP0320270A2 (de) 1989-06-14
EP0409360A3 (en) 1991-04-17
EP0320270A3 (de) 1990-12-19

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Legal Events

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