WO2007079225A3 - Bi-planar loudspeaker system with time-phased audio output - Google Patents

Bi-planar loudspeaker system with time-phased audio output Download PDF

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Publication number
WO2007079225A3
WO2007079225A3 PCT/US2006/049577 US2006049577W WO2007079225A3 WO 2007079225 A3 WO2007079225 A3 WO 2007079225A3 US 2006049577 W US2006049577 W US 2006049577W WO 2007079225 A3 WO2007079225 A3 WO 2007079225A3
Authority
WO
WIPO (PCT)
Prior art keywords
enclosure
time
channel
single enclosure
audio output
Prior art date
Application number
PCT/US2006/049577
Other languages
French (fr)
Other versions
WO2007079225A2 (en
Inventor
Francis Allen Miller
Original Assignee
Gaki Audio Llc
Francis Allen Miller
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 Gaki Audio Llc, Francis Allen Miller filed Critical Gaki Audio Llc
Priority to CN200680049988.4A priority Critical patent/CN101444110B/en
Priority to JP2008548769A priority patent/JP2009532921A/en
Priority to EP06848340A priority patent/EP1967036A2/en
Publication of WO2007079225A2 publication Critical patent/WO2007079225A2/en
Publication of WO2007079225A3 publication Critical patent/WO2007079225A3/en

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
    • 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
    • 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
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/05—Generation or adaptation of centre channel in multi-channel audio systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Stereophonic System (AREA)

Abstract

The present invention uses a system of three loudspeakers to achieve realistic stereophonic sound reproduction. The method uses a single enclosure for the left and right speakers positioned in front in a parallel plane, with a wedge shaped enclosure with the wedge affixed at the center of the single enclosure, and containing the third speaker positioned in parallel with the single enclosure containing the left and right speakers. The invention incorporates electronic circuitry to process the left and right audio input signals. The left and right channel signals are reduced to either channel, then summed and time- delayed to the center channel speaker. The wedge shaped enclosure interrupts the usual overlap of the left and right channels and fills this area with the specially derived center channel signal, such that the listener perceives a wider sound image space.
PCT/US2006/049577 2005-12-30 2006-12-29 Bi-planar loudspeaker system with time-phased audio output WO2007079225A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200680049988.4A CN101444110B (en) 2005-12-30 2006-12-29 Bi-planar loudspeaker system with time-phased audio output
JP2008548769A JP2009532921A (en) 2005-12-30 2006-12-29 Biplanar loudspeaker system with temporal phase audio output
EP06848340A EP1967036A2 (en) 2005-12-30 2006-12-29 Bi-planar loudspeaker system with time-phased audio output

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32387205A 2005-12-30 2005-12-30
US11/323,872 2005-12-30

Publications (2)

Publication Number Publication Date
WO2007079225A2 WO2007079225A2 (en) 2007-07-12
WO2007079225A3 true WO2007079225A3 (en) 2008-06-26

Family

ID=38228875

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/049577 WO2007079225A2 (en) 2005-12-30 2006-12-29 Bi-planar loudspeaker system with time-phased audio output

Country Status (5)

Country Link
EP (1) EP1967036A2 (en)
JP (1) JP2009532921A (en)
KR (1) KR20080082663A (en)
CN (1) CN101444110B (en)
WO (1) WO2007079225A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103796137A (en) * 2014-01-28 2014-05-14 联想(北京)有限公司 Electronic device
CN106101937B (en) * 2016-08-04 2019-09-17 广州视源电子科技股份有限公司 Speaker audio frequency playing method
KR102370839B1 (en) * 2017-05-11 2022-03-04 엘지디스플레이 주식회사 Display apparatus
CN107205194B (en) * 2017-06-07 2020-03-06 鞠波 Sound box and sound box system
CN109788411B (en) * 2018-12-17 2020-09-01 海菲曼（天津）科技有限公司 Electroacoustic transducer and moving coil flat plate composite loudspeaker

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256922A (en) * 1978-03-16 1981-03-17 Goerike Rudolf Stereophonic effect speaker arrangement
US5333200A (en) * 1987-10-15 1994-07-26 Cooper Duane H Head diffraction compensated stereo system with loud speaker array
US5533129A (en) * 1994-08-24 1996-07-02 Gefvert; Herbert I. Multi-dimensional sound reproduction system
US20020114482A1 (en) * 1999-07-22 2002-08-22 Adamson Alan Brock Axially propagating mid and high frequency loudspeaker systems
US6760446B1 (en) * 1998-10-14 2004-07-06 Francis Allen Miller Point source speaker system
US6853732B2 (en) * 1994-03-08 2005-02-08 Sonics Associates, Inc. Center channel enhancement of virtual sound images

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100416757B1 (en) * 1999-06-10 2004-01-31 삼성전자주식회사 Multi-channel audio reproduction apparatus and method for loud-speaker reproduction
CN2571097Y (en) * 2002-08-23 2003-09-03 志合电脑股份有限公司 Speaker unit
US6937737B2 (en) * 2003-10-27 2005-08-30 Britannia Investment Corporation Multi-channel audio surround sound from front located loudspeakers
CN1674720A (en) * 2004-03-23 2005-09-28 林欧煌 Modulation of TV two sound channel to three sound channel circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256922A (en) * 1978-03-16 1981-03-17 Goerike Rudolf Stereophonic effect speaker arrangement
US5333200A (en) * 1987-10-15 1994-07-26 Cooper Duane H Head diffraction compensated stereo system with loud speaker array
US6853732B2 (en) * 1994-03-08 2005-02-08 Sonics Associates, Inc. Center channel enhancement of virtual sound images
US5533129A (en) * 1994-08-24 1996-07-02 Gefvert; Herbert I. Multi-dimensional sound reproduction system
US6760446B1 (en) * 1998-10-14 2004-07-06 Francis Allen Miller Point source speaker system
US20020114482A1 (en) * 1999-07-22 2002-08-22 Adamson Alan Brock Axially propagating mid and high frequency loudspeaker systems

Also Published As

Publication number Publication date
CN101444110A (en) 2009-05-27
WO2007079225A2 (en) 2007-07-12
KR20080082663A (en) 2008-09-11
CN101444110B (en) 2011-05-25
JP2009532921A (en) 2009-09-10
EP1967036A2 (en) 2008-09-10

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