CA2272577A1 - Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources - Google Patents

Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources Download PDF

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Publication number
CA2272577A1
CA2272577A1 CA002272577A CA2272577A CA2272577A1 CA 2272577 A1 CA2272577 A1 CA 2272577A1 CA 002272577 A CA002272577 A CA 002272577A CA 2272577 A CA2272577 A CA 2272577A CA 2272577 A1 CA2272577 A1 CA 2272577A1
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CA
Canada
Prior art keywords
audio signals
sound
capturing
sound sources
separate
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
CA002272577A
Other languages
French (fr)
Other versions
CA2272577C (en
Inventor
Randall B. Metcalf
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.)
VERAX TECHNOLOGIES Inc
Original Assignee
Randall B. Metcalf
Verax Technologies 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 Randall B. Metcalf, Verax Technologies Inc. filed Critical Randall B. Metcalf
Publication of CA2272577A1 publication Critical patent/CA2272577A1/en
Application granted granted Critical
Publication of CA2272577C publication Critical patent/CA2272577C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S7/00Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30Control circuits for electronic adaptation of the sound field
    • H04S7/301Automatic calibration of stereophonic sound system, e.g. with test microphone
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/222Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for microphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/02Spatial or constructional arrangements of loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/04Circuit 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic System (AREA)
  • Telephone Function (AREA)

Abstract

A sound system for capturing and reproducing sounds produced by a plurality of sound sources (SS1-SSN). The system comprises a device for receiving sounds produced by the plurality of sound sources (SS1-SSN) and converting the separately received sounds to a plurality of separate audio signals without mixing the audio signals. The system may further comprise a device for separately storing the plurality of separate audio signals on a recording medium (40) without mixing the audio signals and a device for reading the stored audio signals (50) from the recording medium. The system further includes a reproduction system for recreating the plurality of separate audio signals. Also, the system comprises an amplification network (AS1-ASN) which comprises a plurality of amplifier systems and a loudspeaker network (LS1-LSN). A dynamic controller (DT1-DTN) may be used to control the micro relationships of the components within a signal path and the macro relationships among the separate signal paths.
CA002272577A 1996-11-20 1997-11-20 Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources Expired - Fee Related CA2272577C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/749,766 US7085387B1 (en) 1996-11-20 1996-11-20 Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources
US08/749,766 1996-11-20
PCT/US1997/022081 WO1998023129A1 (en) 1996-11-20 1997-11-20 Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources

Publications (2)

Publication Number Publication Date
CA2272577A1 true CA2272577A1 (en) 1998-05-28
CA2272577C CA2272577C (en) 2007-01-09

Family

ID=25015099

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002272577A Expired - Fee Related CA2272577C (en) 1996-11-20 1997-11-20 Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources

Country Status (4)

Country Link
US (5) US7085387B1 (en)
AU (1) AU7305798A (en)
CA (1) CA2272577C (en)
WO (1) WO1998023129A1 (en)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7298852B2 (en) * 2001-07-11 2007-11-20 American Technology Corporation Dynamic power sharing in a multi-channel sound system
US6738318B1 (en) * 2001-03-05 2004-05-18 Scott C. Harris Audio reproduction system which adaptively assigns different sound parts to different reproduction parts
JP4052189B2 (en) * 2003-06-19 2008-02-27 ソニー株式会社 Acoustic device and acoustic setting method
DE10344638A1 (en) * 2003-08-04 2005-03-10 Fraunhofer Ges Forschung Generation, storage or processing device and method for representation of audio scene involves use of audio signal processing circuit and display device and may use film soundtrack
US20040146167A1 (en) * 2003-10-21 2004-07-29 Sony Corporation/Sony Electronics Inc. Method and apparatus for processing audio from various sources
JP3827693B2 (en) * 2004-09-22 2006-09-27 株式会社コナミデジタルエンタテインメント GAME DEVICE, GAME DEVICE CONTROL METHOD, AND PROGRAM
US8406435B2 (en) * 2005-03-18 2013-03-26 Microsoft Corporation Audio submix management
US8199919B2 (en) 2006-06-01 2012-06-12 Personics Holdings Inc. Earhealth monitoring system and method II
KR101061415B1 (en) * 2006-09-14 2011-09-01 엘지전자 주식회사 Controller and user interface for dialogue enhancement techniques
JP5323210B2 (en) * 2010-09-30 2013-10-23 パナソニック株式会社 Sound reproduction apparatus and sound reproduction method
WO2012130986A1 (en) * 2011-03-30 2012-10-04 Kaetel Systems Gmbh Loudspeaker
US8768139B2 (en) 2011-06-27 2014-07-01 First Principles, Inc. System for videotaping and recording a musical group
US9141187B2 (en) * 2013-01-30 2015-09-22 Panasonic Automotive Systems Company Of America, Division Of Panasonic Corporation Of North America Interactive vehicle synthesizer
US9560449B2 (en) 2014-01-17 2017-01-31 Sony Corporation Distributed wireless speaker system
US9288597B2 (en) 2014-01-20 2016-03-15 Sony Corporation Distributed wireless speaker system with automatic configuration determination when new speakers are added
US9866986B2 (en) * 2014-01-24 2018-01-09 Sony Corporation Audio speaker system with virtual music performance
US9402145B2 (en) 2014-01-24 2016-07-26 Sony Corporation Wireless speaker system with distributed low (bass) frequency
US9369801B2 (en) 2014-01-24 2016-06-14 Sony Corporation Wireless speaker system with noise cancelation
US9426551B2 (en) 2014-01-24 2016-08-23 Sony Corporation Distributed wireless speaker system with light show
US9232335B2 (en) 2014-03-06 2016-01-05 Sony Corporation Networked speaker system with follow me
US9706330B2 (en) * 2014-09-11 2017-07-11 Genelec Oy Loudspeaker control
EP3198594B1 (en) 2014-09-25 2018-11-28 Dolby Laboratories Licensing Corporation Insertion of sound objects into a downmixed audio signal
US10327067B2 (en) * 2015-05-08 2019-06-18 Samsung Electronics Co., Ltd. Three-dimensional sound reproduction method and device
JP6520442B2 (en) * 2015-06-16 2019-05-29 ヤマハ株式会社 Parameter control device and parameter control program
US9693168B1 (en) 2016-02-08 2017-06-27 Sony Corporation Ultrasonic speaker assembly for audio spatial effect
US9826332B2 (en) 2016-02-09 2017-11-21 Sony Corporation Centralized wireless speaker system
US9826330B2 (en) 2016-03-14 2017-11-21 Sony Corporation Gimbal-mounted linear ultrasonic speaker assembly
US9693169B1 (en) 2016-03-16 2017-06-27 Sony Corporation Ultrasonic speaker assembly with ultrasonic room mapping
US9794724B1 (en) 2016-07-20 2017-10-17 Sony Corporation Ultrasonic speaker assembly using variable carrier frequency to establish third dimension sound locating
US9924286B1 (en) 2016-10-20 2018-03-20 Sony Corporation Networked speaker system with LED-based wireless communication and personal identifier
US9854362B1 (en) 2016-10-20 2017-12-26 Sony Corporation Networked speaker system with LED-based wireless communication and object detection
US10075791B2 (en) 2016-10-20 2018-09-11 Sony Corporation Networked speaker system with LED-based wireless communication and room mapping
JP6742216B2 (en) * 2016-10-25 2020-08-19 キヤノン株式会社 Sound processing system, sound processing method, program
CN107526568A (en) * 2017-08-18 2017-12-29 广东欧珀移动通信有限公司 volume adjusting method, device, terminal device and storage medium
US11099075B2 (en) 2017-11-02 2021-08-24 Fluke Corporation Focus and/or parallax adjustment in acoustic imaging using distance information
US11209306B2 (en) 2017-11-02 2021-12-28 Fluke Corporation Portable acoustic imaging tool with scanning and analysis capability
WO2020023633A1 (en) 2018-07-24 2020-01-30 Fluke Corporation Systems and methods for tagging and linking acoustic images
US10623859B1 (en) 2018-10-23 2020-04-14 Sony Corporation Networked speaker system with combined power over Ethernet and audio delivery
US11361773B2 (en) * 2019-08-28 2022-06-14 Roku, Inc. Using non-audio data embedded in an audio signal
EP3879702A1 (en) * 2020-03-09 2021-09-15 Nokia Technologies Oy Adjusting a volume level
US11579838B2 (en) * 2020-11-26 2023-02-14 Verses, Inc. Method for playing audio source using user interaction and a music application using the same
WO2023166109A1 (en) * 2022-03-03 2023-09-07 Kaetel Systems Gmbh Device and method for rerecording an existing audio sample

Family Cites Families (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US572981A (en) * 1896-12-15 Francois louis goulvin
US257453A (en) * 1882-05-09 Telephonic transmission of sound from theaters
US1765735A (en) * 1927-09-14 1930-06-24 Paul Kolisch Recording and reproducing system
US2352696A (en) * 1940-07-24 1944-07-04 Boer Kornelis De Device for the stereophonic registration, transmission, and reproduction of sounds
US2819342A (en) 1954-12-30 1958-01-07 Bell Telephone Labor Inc Monaural-binaural transmission of sound
US3158695A (en) * 1960-07-05 1964-11-24 Ht Res Inst Stereophonic system
US3540545A (en) * 1967-02-06 1970-11-17 Wurlitzer Co Horn speaker
US3710034A (en) * 1970-03-06 1973-01-09 Fibra Sonics Multi-dimensional sonic recording and playback devices and method
GB1514162A (en) * 1974-03-25 1978-06-14 Ruggles W Directional enhancement system for quadraphonic decoders
US4072821A (en) 1976-05-10 1978-02-07 Cbs Inc. Microphone system for producing signals for quadraphonic reproduction
US4096353A (en) 1976-11-02 1978-06-20 Cbs Inc. Microphone system for producing signals for quadraphonic reproduction
GB1597580A (en) * 1976-11-03 1981-09-09 Griffiths R M Polyphonic sound system
US4105865A (en) * 1977-05-20 1978-08-08 Henry Guillory Audio distributor
NL7713076A (en) 1977-11-28 1979-05-30 Johannes Cornelis Maria Van De METHOD AND DEVICE FOR RECORDING SOUND AND / OR FOR PROCESSING SOUND PRIOR TO PLAYBACK.
US4377101A (en) * 1979-07-09 1983-03-22 Sergio Santucci Combination guitar and bass
US4422048A (en) * 1980-02-14 1983-12-20 Edwards Richard K Multiple band frequency response controller
JPS56130400U (en) * 1980-03-04 1981-10-03
JPS6019431Y2 (en) * 1980-04-25 1985-06-11 ソニー株式会社 Stereo/monaural automatic switching device
US4377270A (en) * 1980-07-24 1983-03-22 Kolongowski Sidney C Bow holder
NL8105371A (en) * 1981-11-27 1983-06-16 Philips Nv DEVICE FOR CONTROLLING ONE OR MORE TURNOVER UNITS.
US4782471A (en) 1984-08-28 1988-11-01 Commissariat A L'energie Atomique Omnidirectional transducer of elastic waves with a wide pass band and production process
US4675906A (en) 1984-12-20 1987-06-23 At&T Company, At&T Bell Laboratories Second order toroidal microphone
US4683591A (en) * 1985-04-29 1987-07-28 Emhart Industries, Inc. Proportional power demand audio amplifier control
US4718099A (en) * 1986-01-29 1988-01-05 Telex Communications, Inc. Automatic gain control for hearing aid
NL8800745A (en) 1988-03-24 1989-10-16 Augustinus Johannes Berkhout METHOD AND APPARATUS FOR CREATING A VARIABLE ACOUSTICS IN A ROOM
JP2553668B2 (en) 1988-10-13 1996-11-13 松下電器産業株式会社 Magnetic recording method
US5027403A (en) * 1988-11-21 1991-06-25 Bose Corporation Video sound
DE3932858C2 (en) * 1988-12-07 1996-12-19 Onkyo Kk Stereophonic playback system
JPH0728470B2 (en) 1989-02-03 1995-03-29 松下電器産業株式会社 Array microphone
US5225618A (en) 1989-08-17 1993-07-06 Wayne Wadhams Method and apparatus for studying music
US5142961A (en) 1989-11-07 1992-09-01 Fred Paroutaud Method and apparatus for stimulation of acoustic musical instruments
US5046101A (en) * 1989-11-14 1991-09-03 Lovejoy Controls Corp. Audio dosage control system
US5212733A (en) * 1990-02-28 1993-05-18 Voyager Sound, Inc. Sound mixing device
JP2569872B2 (en) * 1990-03-02 1997-01-08 ヤマハ株式会社 Sound field control device
JPH06101875B2 (en) * 1990-06-19 1994-12-12 ヤマハ株式会社 Acoustic space reproducing method, acoustic recording device, and acoustic recording body
US5274740A (en) 1991-01-08 1993-12-28 Dolby Laboratories Licensing Corporation Decoder for variable number of channel presentation of multidimensional sound fields
JP3295440B2 (en) * 1991-09-10 2002-06-24 パイオニア株式会社 Signal processing circuit in audio equipment
FR2682251B1 (en) 1991-10-02 1997-04-25 Prescom Sarl SOUND RECORDING METHOD AND SYSTEM, AND SOUND RECORDING AND RESTITUTING APPARATUS.
JP3232608B2 (en) 1991-11-25 2001-11-26 ソニー株式会社 Sound collecting device, reproducing device, sound collecting method and reproducing method, and sound signal processing device
EP0563929B1 (en) * 1992-04-03 1998-12-30 Yamaha Corporation Sound-image position control apparatus
CA2137651C (en) 1992-06-10 1999-03-16 William Gossman Active acoustical controlled enclosure
DE69327501D1 (en) 1992-10-13 2000-02-10 Matsushita Electric Ind Co Ltd Sound environment simulator and method for sound field analysis
IT1257164B (en) 1992-10-23 1996-01-05 Ist Trentino Di Cultura PROCEDURE FOR LOCATING A SPEAKER AND THE ACQUISITION OF A VOICE MESSAGE, AND ITS SYSTEM.
US5404406A (en) 1992-11-30 1995-04-04 Victor Company Of Japan, Ltd. Method for controlling localization of sound image
US5400405A (en) 1993-07-02 1995-03-21 Harman Electronics, Inc. Audio image enhancement system
US5657393A (en) 1993-07-30 1997-08-12 Crow; Robert P. Beamed linear array microphone system
JP3555149B2 (en) 1993-10-28 2004-08-18 ソニー株式会社 Audio signal encoding method and apparatus, recording medium, audio signal decoding method and apparatus,
US5521981A (en) * 1994-01-06 1996-05-28 Gehring; Louis S. Sound positioner
US5506910A (en) 1994-01-13 1996-04-09 Sabine Musical Manufacturing Company, Inc. Automatic equalizer
JP3687099B2 (en) 1994-02-14 2005-08-24 ソニー株式会社 Video signal and audio signal playback device
US5497425A (en) * 1994-03-07 1996-03-05 Rapoport; Robert J. Multi channel surround sound simulation device
FR2726681B1 (en) 1994-11-03 1997-01-17 Centre Scient Tech Batiment ACTIVE DOUBLE WALL ACOUSTIC MITIGATION DEVICE
JP3528284B2 (en) 1994-11-18 2004-05-17 ヤマハ株式会社 3D sound system
GB9506263D0 (en) * 1995-03-28 1995-05-17 Sse Hire Limited Loudspeaker system
US5740260A (en) * 1995-05-22 1998-04-14 Presonus L.L.P. Midi to analog sound processor interface
JP3577798B2 (en) 1995-08-31 2004-10-13 ソニー株式会社 Headphone equipment
JPH0970092A (en) * 1995-09-01 1997-03-11 Saalogic:Kk Point sound source, non-oriented speaker system
JP4097726B2 (en) * 1996-02-13 2008-06-11 常成 小島 Electronic sound equipment
US5857026A (en) * 1996-03-26 1999-01-05 Scheiber; Peter Space-mapping sound system
US5850455A (en) 1996-06-18 1998-12-15 Extreme Audio Reality, Inc. Discrete dynamic positioning of audio signals in a 360° environment
US6154549A (en) 1996-06-18 2000-11-28 Extreme Audio Reality, Inc. Method and apparatus for providing sound in a spatial environment
US6084168A (en) * 1996-07-10 2000-07-04 Sitrick; David H. Musical compositions communication system, architecture and methodology
US5809153A (en) * 1996-12-04 1998-09-15 Bose Corporation Electroacoustical transducing
US6041127A (en) 1997-04-03 2000-03-21 Lucent Technologies Inc. Steerable and variable first-order differential microphone array
US6072878A (en) * 1997-09-24 2000-06-06 Sonic Solutions Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics
US6356644B1 (en) 1998-02-20 2002-03-12 Sony Corporation Earphone (surround sound) speaker
EP0961523B1 (en) * 1998-05-27 2010-08-25 Sony France S.A. Music spatialisation system and method
IL127569A0 (en) * 1998-09-16 1999-10-28 Comsense Technologies Ltd Interactive toys
US6574339B1 (en) * 1998-10-20 2003-06-03 Samsung Electronics Co., Ltd. Three-dimensional sound reproducing apparatus for multiple listeners and method thereof
JP3584800B2 (en) 1999-08-17 2004-11-04 ヤマハ株式会社 Sound field reproduction method and apparatus
US6239348B1 (en) 1999-09-10 2001-05-29 Randall B. Metcalf Sound system and method for creating a sound event based on a modeled sound field
US6219645B1 (en) 1999-12-02 2001-04-17 Lucent Technologies, Inc. Enhanced automatic speech recognition using multiple directional microphones
US6925426B1 (en) * 2000-02-22 2005-08-02 Board Of Trustees Operating Michigan State University Process for high fidelity sound recording and reproduction of musical sound
EP1134724B1 (en) * 2000-03-17 2008-07-23 Sony France S.A. Real time audio spatialisation system with high level control
JP4304401B2 (en) 2000-06-07 2009-07-29 ソニー株式会社 Multi-channel audio playback device
EP1209949A1 (en) 2000-11-22 2002-05-29 Technische Universiteit Delft Wave Field Synthesys Sound reproduction system using a Distributed Mode Panel
US6686531B1 (en) * 2000-12-29 2004-02-03 Harmon International Industries Incorporated Music delivery, control and integration
US6664460B1 (en) * 2001-01-05 2003-12-16 Harman International Industries, Incorporated System for customizing musical effects using digital signal processing techniques
US6738318B1 (en) * 2001-03-05 2004-05-18 Scott C. Harris Audio reproduction system which adaptively assigns different sound parts to different reproduction parts
US6829018B2 (en) 2001-09-17 2004-12-07 Koninklijke Philips Electronics N.V. Three-dimensional sound creation assisted by visual information
US20040131192A1 (en) * 2002-09-30 2004-07-08 Metcalf Randall B. System and method for integral transference of acoustical events
KR100542129B1 (en) 2002-10-28 2006-01-11 한국전자통신연구원 Object-based three dimensional audio system and control method
US6990211B2 (en) 2003-02-11 2006-01-24 Hewlett-Packard Development Company, L.P. Audio system and method
JP4081768B2 (en) 2004-03-03 2008-04-30 ソニー株式会社 Plural sound reproducing device, plural sound reproducing method, and plural sound reproducing system
US7636448B2 (en) * 2004-10-28 2009-12-22 Verax Technologies, Inc. System and method for generating sound events
US7774707B2 (en) 2004-12-01 2010-08-10 Creative Technology Ltd Method and apparatus for enabling a user to amend an audio file
WO2006091540A2 (en) 2005-02-22 2006-08-31 Verax Technologies Inc. System and method for formatting multimode sound content and metadata

Also Published As

Publication number Publication date
US8520858B2 (en) 2013-08-27
US20060262948A1 (en) 2006-11-23
WO1998023129A1 (en) 1998-05-28
US20160198283A1 (en) 2016-07-07
CA2272577C (en) 2007-01-09
US9544705B2 (en) 2017-01-10
US20050129256A1 (en) 2005-06-16
US7085387B1 (en) 2006-08-01
AU7305798A (en) 1998-06-10
US20140064498A1 (en) 2014-03-06

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