JPS647797A - Sound insulation device - Google Patents

Sound insulation device

Info

Publication number
JPS647797A
JPS647797A JP62160994A JP16099487A JPS647797A JP S647797 A JPS647797 A JP S647797A JP 62160994 A JP62160994 A JP 62160994A JP 16099487 A JP16099487 A JP 16099487A JP S647797 A JPS647797 A JP S647797A
Authority
JP
Japan
Prior art keywords
sound
insulator
phase
noise
signal
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.)
Pending
Application number
JP62160994A
Other languages
Japanese (ja)
Inventor
Michimasa Yamaguchi
Shosuke Suzuki
Takeo Yokobori
Kazuyoshi Iida
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.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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 Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP62160994A priority Critical patent/JPS647797A/en
Priority to DE3821939A priority patent/DE3821939A1/en
Publication of JPS647797A publication Critical patent/JPS647797A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/106—Boxes, i.e. active box covering a noise source; Enclosures
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
    • G10K2210/1082—Microphones, e.g. systems using "virtual" microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/129—Vibration, e.g. instead of, or in addition to, acoustic noise
    • G10K2210/1291—Anti-Vibration-Control, e.g. reducing vibrations in panels or beams
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3045—Multiple acoustic inputs, single acoustic output
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3217—Collocated sensor and cancelling actuator, e.g. "virtual earth" designs
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3229—Transducers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3229—Transducers
    • G10K2210/32291—Plates or thin films, e.g. PVDF

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

PURPOSE:To attain remarkable sound insulation effect by providing a sound insulator facing to a noise source and a sound generator to the rear of the sound insulator, detecting noise that passes through the insulator by a reception means, changing the phase of a sound signal, and offsetting the sound by moving a sound generator back and forth by using the output of said phase-changed sound. CONSTITUTION:The sound insulator B is disposed against the noise source A, and the sound generator C consisting of a ceramic piezoelectric body is provided in the rear of the insulator B, and the reception means D is disposed close to the insulator B. The phase of a sound signal detected by the means D is changed by a phase changing means E, and based on the changed phase signal, a drive means F moves the sound generator C back and forth against the insulator B. That is, the noise detected by the means D is converted to a signal in the inverse phase or approximately inverse phase by the means E, so that the noise that is transmitted through the insulator B and sound from the sound generator C interferes with each other to be offset.
JP62160994A 1987-06-30 1987-06-30 Sound insulation device Pending JPS647797A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62160994A JPS647797A (en) 1987-06-30 1987-06-30 Sound insulation device
DE3821939A DE3821939A1 (en) 1987-06-30 1988-06-29 Sound-deadening (sound-absorbing) device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62160994A JPS647797A (en) 1987-06-30 1987-06-30 Sound insulation device

Publications (1)

Publication Number Publication Date
JPS647797A true JPS647797A (en) 1989-01-11

Family

ID=15726552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62160994A Pending JPS647797A (en) 1987-06-30 1987-06-30 Sound insulation device

Country Status (2)

Country Link
JP (1) JPS647797A (en)
DE (1) DE3821939A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03235641A (en) * 1990-02-08 1991-10-21 Hitachi Ltd Compressor provided with noise shield structure
JPH06308969A (en) * 1993-04-21 1994-11-04 Chubu Electric Power Co Inc Hybrid type noise silencer
JPH07129183A (en) * 1993-10-29 1995-05-19 Toto Ltd Active silencing system and panel material for it
WO2011158354A1 (en) * 2010-06-16 2011-12-22 Ykk株式会社 Fly sewing machine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3921307A1 (en) * 1989-06-29 1991-01-10 Battelle Institut E V ACOUSTIC SENSOR DEVICE WITH SOUND CANCELLATION
EP0434468A3 (en) * 1989-12-22 1992-05-27 Bridgestone Corporation Vibration control system
DE4133407C2 (en) * 1991-10-09 1994-01-20 Deutsche Aerospace Arrangement for compensating the sound emitted by a vibrating wall
DE29804584U1 (en) * 1997-03-18 1998-05-14 Daimler-Benz Aktiengesellschaft, 70567 Stuttgart Active acoustic resonator for noise reduction
DE102004019592A1 (en) * 2004-04-22 2005-09-01 Siemens Ag Sound proofing device, especially for a magnetic resonance tomograph, has numerous piezo-actuators controlled by acceleration sensors so that they minimize the vibration of a sound proofing wall to which they are attached
DE102007012611A1 (en) * 2007-03-13 2009-01-08 Airbus Deutschland Gmbh Method for active soundproofing in closed inner chamber, involves identifying secondary modulator or transmission path of interfering signal and arranging secondary modulator
CN109945325B (en) * 2019-02-27 2021-11-02 佛山市顺德区美的电子科技有限公司 Silencer, air conditioner and control method of air conditioner

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2814093C2 (en) * 1978-04-01 1980-05-14 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Anti-noise generator
JPS5529304A (en) * 1978-08-21 1980-03-01 Nippon Seimitsu Sokuki Kk Tonometer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03235641A (en) * 1990-02-08 1991-10-21 Hitachi Ltd Compressor provided with noise shield structure
JPH06308969A (en) * 1993-04-21 1994-11-04 Chubu Electric Power Co Inc Hybrid type noise silencer
JPH07129183A (en) * 1993-10-29 1995-05-19 Toto Ltd Active silencing system and panel material for it
WO2011158354A1 (en) * 2010-06-16 2011-12-22 Ykk株式会社 Fly sewing machine

Also Published As

Publication number Publication date
DE3821939A1 (en) 1989-01-12

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