EP0248172A3 - Stereophonic loudspeaker - Google Patents

Stereophonic loudspeaker Download PDF

Info

Publication number
EP0248172A3
EP0248172A3 EP87105422A EP87105422A EP0248172A3 EP 0248172 A3 EP0248172 A3 EP 0248172A3 EP 87105422 A EP87105422 A EP 87105422A EP 87105422 A EP87105422 A EP 87105422A EP 0248172 A3 EP0248172 A3 EP 0248172A3
Authority
EP
European Patent Office
Prior art keywords
transducers
line
fed
group
different
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
EP87105422A
Other languages
French (fr)
Other versions
EP0248172B1 (en
EP0248172A2 (en
Inventor
Walter Schupbach
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.)
SES Sound Electronic Systems SA
Original Assignee
SES Sound Electronic Systems SA
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 SES Sound Electronic Systems SA filed Critical SES Sound Electronic Systems SA
Priority to AT87105422T priority Critical patent/ATE90171T1/en
Publication of EP0248172A2 publication Critical patent/EP0248172A2/en
Publication of EP0248172A3 publication Critical patent/EP0248172A3/en
Application granted granted Critical
Publication of EP0248172B1 publication Critical patent/EP0248172B1/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
    • H04R5/00—Stereophonic arrangements
    • 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
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
    • H04R2205/022—Plurality of transducers corresponding to a plurality of sound channels in each earpiece of headphones or in a single enclosure

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Stereophonic System (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Casings For Electric Apparatus (AREA)
  • Headphones And Earphones (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Cold Cathode And The Manufacture (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic Arrangements (AREA)

Abstract

A stereophonic baffle comprises a first transducer group (7 to 10) located along a first line and fed by a right signal of a Hi-Fi chain and a second group of transducers (11 and 15) located according to a second line, forming an angle with the first line, and fed by a left signal. The left and right signals feeding the groups of transducers (7 and 10 and 11 to 15) are in phase and the path (a to e) separating the active zones of the two associated transducers (6,11; 7,12; 8,13; 9,14; 10,15) is equal to an odd multiple of the half wave length of a frequency comprised between 300 and 1000 Hz thus creating an acoustic coupling for the frequency, between the two transducers. The coupling frequencies of the different transducer couples are different.
EP87105422A 1986-06-05 1987-04-11 Stereophonic loudspeaker Expired - Lifetime EP0248172B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87105422T ATE90171T1 (en) 1986-06-05 1987-04-11 STEREOPHONIC SPEAKER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2282/86A CH667174A5 (en) 1986-06-05 1986-06-05 MONOLITHIC STEREOPHONIC SPEAKER.
CH2282/86 1986-06-05

Publications (3)

Publication Number Publication Date
EP0248172A2 EP0248172A2 (en) 1987-12-09
EP0248172A3 true EP0248172A3 (en) 1989-05-24
EP0248172B1 EP0248172B1 (en) 1993-06-02

Family

ID=4230124

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105422A Expired - Lifetime EP0248172B1 (en) 1986-06-05 1987-04-11 Stereophonic loudspeaker

Country Status (14)

Country Link
US (1) US4837826A (en)
EP (1) EP0248172B1 (en)
JP (1) JPS62292098A (en)
KR (1) KR940011761B1 (en)
AT (1) ATE90171T1 (en)
AU (1) AU594779B2 (en)
CA (1) CA1280376C (en)
CH (1) CH667174A5 (en)
DE (2) DE248172T1 (en)
DK (1) DK222387A (en)
ES (1) ES2000246T3 (en)
GR (1) GR880300013T1 (en)
NO (1) NO170830C (en)
NZ (1) NZ220304A (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5097514A (en) * 1988-05-25 1992-03-17 Mcneill Dennis G Equilateral tetrahedral speaker system
US5025473A (en) * 1989-08-24 1991-06-18 Carlsen Ii George D Hemispherical speaker system
GB2256773A (en) * 1991-06-12 1992-12-16 Canon Res Ct Europe Ltd Loudspeaker uinit
DE4244397C2 (en) * 1992-12-29 1996-03-07 Waldemar Kehler Method and device for stereophonic reproduction and recording
US5553147A (en) * 1993-05-11 1996-09-03 One Inc. Stereophonic reproduction method and apparatus
US5546468A (en) * 1994-05-04 1996-08-13 Beard; Michael H. Portable speaker and amplifier unit
JP3063639B2 (en) * 1996-09-26 2000-07-12 ヤマハ株式会社 Speaker device
US6801631B1 (en) 1999-10-22 2004-10-05 Donald J. North Speaker system with multiple transducers positioned in a plane for optimum acoustic radiation pattern
EP1232672A1 (en) 1999-11-25 2002-08-21 Embracing Sound Experience AB A method of processing and reproducing an audio stereo signal, and an audio stereo signal reproduction system
JP3521825B2 (en) * 1999-12-28 2004-04-26 株式会社村田製作所 Speaker system
US7409071B1 (en) * 2002-07-12 2008-08-05 Nick Bromer Large-diameter arcuate speaker
FR2857550A1 (en) * 2003-07-07 2005-01-14 Thierry Comte Omni-directional speaker, has two series of loud speakers, each with two loudspeakers having different bandwidths, where two loudspeakers are out of phase from all-pass filter
SE527062C2 (en) * 2003-07-21 2005-12-13 Embracing Sound Experience Ab Stereo sound processing method, device and system
JP4127156B2 (en) * 2003-08-08 2008-07-30 ヤマハ株式会社 Audio playback device, line array speaker unit, and audio playback method
US8351616B1 (en) * 2005-11-23 2013-01-08 Graber Curtis E Array of multiple LF transducers with ultrahigh cardioid sound pattern generation
SE530180C2 (en) * 2006-04-19 2008-03-18 Embracing Sound Experience Ab Speaker Device
EP2661906B1 (en) * 2011-01-06 2020-07-01 Naxos Finance SA Innovative sound system
TWI653897B (en) * 2016-06-24 2019-03-11 宏碁股份有限公司 Speaker and electronic device using the same
USD843341S1 (en) * 2016-08-31 2019-03-19 Rembrandt Laboratories, Llc Speaker cabinet
US11140471B2 (en) * 2017-03-01 2021-10-05 Dolby Laboratories Licensing Corporation Multiple dispersion standalone stereo loudspeakers
USD918870S1 (en) * 2019-08-09 2021-05-11 SDS Asia Limited, BVI # 1748971 Speaker
USD928735S1 (en) * 2019-08-23 2021-08-24 Lg Electronics Inc. Speaker
KR20220041432A (en) * 2020-09-25 2022-04-01 삼성전자주식회사 System and method for detecting distance using acoustic signal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892624A (en) * 1970-02-03 1975-07-01 Sony Corp Stereophonic sound reproducing system
FR2378418A1 (en) * 1977-01-25 1978-08-18 Rank Organisation Ltd Wide band loudspeaker system - has two speakers mounted one above the other on stepped baffle and driven through phase compensation network
US4249037A (en) * 1978-11-08 1981-02-03 Dexter John L Pyramid loudspeakers with twin cross-phased mid-range speakers
US4365688A (en) * 1981-03-12 1982-12-28 Blose William G Speaker cabinet
US4572325A (en) * 1982-12-23 1986-02-25 Walter Schupbach Stereophonic baffle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3241631A (en) * 1964-01-31 1966-03-22 Manieri Domenico High-fidelity column-type stereomonophonic diffuser with regulated sound deflection
US3947635A (en) * 1973-09-12 1976-03-30 Frankman Charles W Integrated stereo speaker system
US4051919A (en) * 1975-12-08 1977-10-04 John M. Buettner High fidelity speaker enclosure
US4054750A (en) * 1976-06-18 1977-10-18 Ralph Montgomery Full range rotatable speaker housing with oppositely directed speakers
JPS54148501A (en) * 1978-03-16 1979-11-20 Akg Akustische Kino Geraete Device for reproducing at least 2 channels acoustic events transmitted in room
US4267405A (en) * 1979-06-05 1981-05-12 Mcintosh Laboratory, Inc. Stereo speaker system for creating stereo images
JPS5645360A (en) * 1979-09-14 1981-04-25 Chiyoda Koki:Kk Grinding device for lens
US4503553A (en) * 1983-06-03 1985-03-05 Dbx, Inc. Loudspeaker system
JPS61500644A (en) * 1983-12-02 1986-04-03 イ−，レイモンド　エム． sound reproduction system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892624A (en) * 1970-02-03 1975-07-01 Sony Corp Stereophonic sound reproducing system
FR2378418A1 (en) * 1977-01-25 1978-08-18 Rank Organisation Ltd Wide band loudspeaker system - has two speakers mounted one above the other on stepped baffle and driven through phase compensation network
US4249037A (en) * 1978-11-08 1981-02-03 Dexter John L Pyramid loudspeakers with twin cross-phased mid-range speakers
US4365688A (en) * 1981-03-12 1982-12-28 Blose William G Speaker cabinet
US4572325A (en) * 1982-12-23 1986-02-25 Walter Schupbach Stereophonic baffle

Also Published As

Publication number Publication date
DE3786040D1 (en) 1993-07-08
NO872309D0 (en) 1987-06-02
CA1280376C (en) 1991-02-19
ES2000246T3 (en) 1993-12-01
NZ220304A (en) 1989-09-27
KR940011761B1 (en) 1994-12-23
DE3786040T2 (en) 1994-01-05
EP0248172B1 (en) 1993-06-02
NO170830C (en) 1992-12-09
DK222387D0 (en) 1987-05-01
NO872309L (en) 1987-12-07
ATE90171T1 (en) 1993-06-15
NO170830B (en) 1992-08-31
JPS62292098A (en) 1987-12-18
DK222387A (en) 1987-12-06
ES2000246A4 (en) 1988-02-01
KR880001168A (en) 1988-03-31
AU7383787A (en) 1987-12-10
DE248172T1 (en) 1988-04-07
US4837826A (en) 1989-06-06
AU594779B2 (en) 1990-03-15
EP0248172A2 (en) 1987-12-09
CH667174A5 (en) 1988-09-15
GR880300013T1 (en) 1988-10-18

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