DE69034044T2 - Methode zur abschreckung von akustischer überwachung - Google Patents

Methode zur abschreckung von akustischer überwachung Download PDF

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Publication number
DE69034044T2
DE69034044T2 DE69034044T DE69034044T DE69034044T2 DE 69034044 T2 DE69034044 T2 DE 69034044T2 DE 69034044 T DE69034044 T DE 69034044T DE 69034044 T DE69034044 T DE 69034044T DE 69034044 T2 DE69034044 T2 DE 69034044T2
Authority
DE
Germany
Prior art keywords
signal
speaker
generating device
signals
additional
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.)
Expired - Fee Related
Application number
DE69034044T
Other languages
English (en)
Other versions
DE69034044D1 (de
Inventor
Brian D Kehoe
Noel D Matchett
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE69034044D1 publication Critical patent/DE69034044D1/de
Application granted granted Critical
Publication of DE69034044T2 publication Critical patent/DE69034044T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/60—Jamming involving special techniques
    • H04K3/65—Jamming involving special techniques using deceptive jamming or spoofing, e.g. transmission of false signals for premature triggering of RCIED, for forced connection or disconnection to/from a network or for generation of dummy target signal
    • 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
    • H04K1/00—Secret communication
    • H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Stereophonic System (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Telephone Function (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
DE69034044T 1989-11-02 1990-11-02 Methode zur abschreckung von akustischer überwachung Expired - Fee Related DE69034044T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/430,356 US5036542A (en) 1989-11-02 1989-11-02 Audio surveillance discouragement apparatus and method
PCT/US1990/006402 WO1991007066A1 (en) 1989-11-02 1990-11-02 Audio surveillance discouragement apparatus and method

Publications (2)

Publication Number Publication Date
DE69034044D1 DE69034044D1 (de) 2003-04-03
DE69034044T2 true DE69034044T2 (de) 2004-01-29

Family

ID=23707198

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69034044T Expired - Fee Related DE69034044T2 (de) 1989-11-02 1990-11-02 Methode zur abschreckung von akustischer überwachung

Country Status (7)

Country Link
US (1) US5036542A (de)
EP (1) EP0500767B1 (de)
JP (1) JP2954702B2 (de)
AT (1) ATE233463T1 (de)
AU (1) AU6891391A (de)
DE (1) DE69034044T2 (de)
WO (1) WO1991007066A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5894517A (en) * 1996-06-07 1999-04-13 Cabletron Systems Inc. High-speed backplane bus with low RF radiation
DE69832078T2 (de) 1998-11-30 2006-06-01 Siemens Ag Verfahren zur Rauschverminderung beim Empfang eines HF FM Signals
US20040125922A1 (en) * 2002-09-12 2004-07-01 Specht Jeffrey L. Communications device with sound masking system
US20050220310A1 (en) * 2004-03-30 2005-10-06 Mcgrath William R Technique and device for through-the-wall audio surveillance
WO2006076217A2 (en) * 2005-01-10 2006-07-20 Herman Miller, Inc. Method and apparatus of overlapping and summing speech for an output that disrupts speech
US7363227B2 (en) * 2005-01-10 2008-04-22 Herman Miller, Inc. Disruption of speech understanding by adding a privacy sound thereto
JP4775042B2 (ja) * 2006-03-09 2011-09-21 ヤマハ株式会社 制御装置及びプログラム
JP5103973B2 (ja) * 2007-03-22 2012-12-19 ヤマハ株式会社 サウンドマスキングシステム、マスキングサウンド生成方法およびプログラム
JP2012088576A (ja) * 2010-10-21 2012-05-10 Yamaha Corp 放音制御装置
WO2016172446A1 (en) * 2015-04-24 2016-10-27 Rensselaer Polytechnic Institute Sound masking in open-plan spaces using natural sounds
US10637575B2 (en) 2016-05-25 2020-04-28 Wisconsin Alumni Research Foundation Spatial location indoors using standard fluorescent fixtures

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2107756A (en) * 1937-05-15 1938-02-08 Bell Telephone Labor Inc Privacy system
US2405599A (en) * 1941-09-24 1946-08-13 Bell Telephone Labor Inc Privacy system
US2400950A (en) * 1942-01-24 1946-05-28 Rca Corp Privacy signaling system
US2401889A (en) * 1942-09-18 1946-06-11 Rca Corp Secret telephony
US2988598A (en) * 1958-10-28 1961-06-13 Harry C Miller Company Microphone jamming system
US3638123A (en) * 1969-12-01 1972-01-25 Us Navy Vlf atmospheric noise synthesizer
US4010324A (en) * 1974-12-19 1977-03-01 Jarvis John P Background noisemasking system
US3980827A (en) * 1974-12-19 1976-09-14 Sepmeyer Ludwig W Diversity system for noise-masking
US4054751A (en) * 1976-03-01 1977-10-18 Cdf Industries, Inc. Masking noise generator
US4438526A (en) * 1982-04-26 1984-03-20 Conwed Corporation Automatic volume and frequency controlled sound masking system
US4674124A (en) * 1985-06-06 1987-06-16 Bolt Beranek And Newman Inc. Multichannel masking sound generator

Also Published As

Publication number Publication date
JPH05505497A (ja) 1993-08-12
EP0500767B1 (de) 2003-02-26
DE69034044D1 (de) 2003-04-03
AU6891391A (en) 1991-05-31
EP0500767A1 (de) 1992-09-02
EP0500767A4 (en) 1993-08-11
WO1991007066A1 (en) 1991-05-16
ATE233463T1 (de) 2003-03-15
US5036542A (en) 1991-07-30
JP2954702B2 (ja) 1999-09-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee