CA2464731A1 - Sound masking system - Google Patents

Sound masking system Download PDF

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Publication number
CA2464731A1
CA2464731A1 CA002464731A CA2464731A CA2464731A1 CA 2464731 A1 CA2464731 A1 CA 2464731A1 CA 002464731 A CA002464731 A CA 002464731A CA 2464731 A CA2464731 A CA 2464731A CA 2464731 A1 CA2464731 A1 CA 2464731A1
Authority
CA
Canada
Prior art keywords
sound masking
sound
masking
acoustic
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.)
Granted
Application number
CA002464731A
Other languages
French (fr)
Other versions
CA2464731C (en
Inventor
Thomas R. Horrall
John C. Heine
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.)
Cambridge Sound Management Inc
Original Assignee
Acentech, Inc.
Thomas R. Horrall
John C. Heine
Cambridge Sound Management, Llc
Cambridge Sound Management, 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23354739&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2464731(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Acentech, Inc., Thomas R. Horrall, John C. Heine, Cambridge Sound Management, Llc, Cambridge Sound Management, Inc. filed Critical Acentech, Inc.
Publication of CA2464731A1 publication Critical patent/CA2464731A1/en
Application granted granted Critical
Publication of CA2464731C publication Critical patent/CA2464731C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • 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
    • G10K11/1752—Masking
    • G10K11/1754—Speech masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/43—Jamming having variable characteristics characterized by the control of the jamming power, signal-to-noise ratio or geographic coverage area
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/45—Jamming having variable characteristics characterized by including monitoring of the target or target signal, e.g. in reactive jammers or follower jammers for example by means of an alternation of jamming phases and monitoring phases, called "look-through mode"
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/80—Jamming or countermeasure characterized by its function
    • H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
    • H04K3/825—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by jamming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/12—Jamming or countermeasure used for a particular application for acoustic communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/30—Jamming or countermeasure characterized by the infrastructure components
    • H04K2203/34—Jamming or countermeasure characterized by the infrastructure components involving multiple cooperating jammers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/42—Jamming having variable characteristics characterized by the control of the jamming frequency or wavelength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/021—Transducers or their casings adapted for mounting in or to a wall or ceiling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems

Abstract

A sound masking system according to the invention is disclosed in which one or more sound masking loudspeaker assemblies (410) are coupled to one or more electronic sound masking signal generators (410). The loudspeaker assemblies (410) in the system of the invention have a low directivity index and preferably emit an acoustic sound masking signal that has a sound masking spectrum specifically designed to provide superior sound masking in an open plan office. Each of the plurality of loudspeaker assemblies (410) is oriented to provide the acoustic sound masking signal in a direct path into the predetermined area in which masking sound is needed. In addition, the sound masking system of the invention can include a remote control function by which a user can select from a plurality of stored sets of information for providing from a recipient loudspeaker assembly an acoustic sound masking signal having a selected sound masking spectrum.
CA002464731A 2001-10-24 2002-10-24 Sound masking system Expired - Fee Related CA2464731C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US34536201P 2001-10-24 2001-10-24
US60/345,362 2001-10-24
PCT/US2002/034097 WO2003037035A1 (en) 2001-10-24 2002-10-24 Sound masking system

Publications (2)

Publication Number Publication Date
CA2464731A1 true CA2464731A1 (en) 2003-05-01
CA2464731C CA2464731C (en) 2009-02-10

Family

ID=23354739

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002464731A Expired - Fee Related CA2464731C (en) 2001-10-24 2002-10-24 Sound masking system

Country Status (3)

Country Link
US (1) US7194094B2 (en)
CA (1) CA2464731C (en)
WO (1) WO2003037035A1 (en)

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US7363227B2 (en) * 2005-01-10 2008-04-22 Herman Miller, Inc. Disruption of speech understanding by adding a privacy sound thereto
US8107639B2 (en) * 2006-06-29 2012-01-31 777388 Ontario Limited System and method for a sound masking system for networked workstations or offices
US8767975B2 (en) * 2007-06-21 2014-07-01 Bose Corporation Sound discrimination method and apparatus
DE102007000608A1 (en) * 2007-10-31 2009-05-07 Silencesolutions Gmbh Masking for sound
US8611554B2 (en) * 2008-04-22 2013-12-17 Bose Corporation Hearing assistance apparatus
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US8223985B2 (en) * 2009-04-22 2012-07-17 General Electric Company Masking of pure tones within sound from a noise generating source
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US10448161B2 (en) 2012-04-02 2019-10-15 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for gestural manipulation of a sound field
US20140006017A1 (en) * 2012-06-29 2014-01-02 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for generating obfuscated speech signal
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US20160112784A1 (en) * 2014-10-17 2016-04-21 Cambridge Sound Management, Inc. Sound vibration excitation assembly for discrete area sound-absorbing ceiling surfaces, and sound system including such vibration excitation assembly
WO2016160764A1 (en) 2015-04-03 2016-10-06 Cambridge Sound Management, Inc. System and method for defined area sound masking with exterior visual status indicator
WO2016172446A1 (en) 2015-04-24 2016-10-27 Rensselaer Polytechnic Institute Sound masking in open-plan spaces using natural sounds
CA3035165A1 (en) 2015-09-16 2017-03-23 Cambridge Sound Management, Inc. Wireless sound-emitting device and system for remotely controlling a wireless sound-emitting device
US10134379B2 (en) * 2016-03-01 2018-11-20 Guardian Glass, LLC Acoustic wall assembly having double-wall configuration and passive noise-disruptive properties, and/or method of making and/or using the same
US20170256251A1 (en) * 2016-03-01 2017-09-07 Guardian Industries Corp. Acoustic wall assembly having double-wall configuration and active noise-disruptive properties, and/or method of making and/or using the same
US10354638B2 (en) 2016-03-01 2019-07-16 Guardian Glass, LLC Acoustic wall assembly having active noise-disruptive properties, and/or method of making and/or using the same
US9922635B2 (en) * 2016-03-30 2018-03-20 Lenovo (Singapore) Pte. Ltd. Minimizing nuisance audio in an interior space
WO2017201269A1 (en) 2016-05-20 2017-11-23 Cambridge Sound Management, Inc. Self-powered loudspeaker for sound masking
US10373626B2 (en) 2017-03-15 2019-08-06 Guardian Glass, LLC Speech privacy system and/or associated method
US10726855B2 (en) 2017-03-15 2020-07-28 Guardian Glass, Llc. Speech privacy system and/or associated method
US10304473B2 (en) 2017-03-15 2019-05-28 Guardian Glass, LLC Speech privacy system and/or associated method
CA3074735A1 (en) 2017-09-05 2019-03-14 Shaw Industries Group, Inc. Audible acoustic performance tool
US10157604B1 (en) 2018-01-02 2018-12-18 Plantronics, Inc. Sound masking system with improved high-frequency spatial uniformity
US10757507B2 (en) * 2018-02-13 2020-08-25 Ppip, Llc Sound shaping apparatus
US10880663B1 (en) 2018-06-20 2020-12-29 Columbia Insurance Company Methods and systems for sound file creation
US10510220B1 (en) 2018-08-06 2019-12-17 International Business Machines Corporation Intelligent alarm sound control
JP7303621B2 (en) * 2018-11-02 2023-07-05 株式会社オカムラ speaker system
CN111508461B (en) * 2020-04-13 2023-11-03 山东省计算中心（国家超级计算济南中心） Information centralization management system and method for multi-sound masking system

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Also Published As

Publication number Publication date
US7194094B2 (en) 2007-03-20
US20030091199A1 (en) 2003-05-15
WO2003037035A1 (en) 2003-05-01
CA2464731C (en) 2009-02-10
WO2003037035A9 (en) 2004-05-13

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Effective date: 20201026