CA2134408A1 - Anti-Eavesdropping Device - Google Patents

Anti-Eavesdropping Device

Info

Publication number
CA2134408A1
CA2134408A1 CA2134408A CA2134408A CA2134408A1 CA 2134408 A1 CA2134408 A1 CA 2134408A1 CA 2134408 A CA2134408 A CA 2134408A CA 2134408 A CA2134408 A CA 2134408A CA 2134408 A1 CA2134408 A1 CA 2134408A1
Authority
CA
Canada
Prior art keywords
sound
eavesdropping
sound waves
structure includes
waves
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
CA2134408A
Other languages
French (fr)
Other versions
CA2134408C (en
Inventor
Charles A. Kury
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 CA2134408A1 publication Critical patent/CA2134408A1/en
Application granted granted Critical
Publication of CA2134408C publication Critical patent/CA2134408C/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
    • 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
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1025—Accumulators or arrangements for charging
    • 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
    • H04R5/033—Headphones for stereophonic communication
    • H04R5/0335—Earpiece support, e.g. headbands or neckrests

Abstract

An anti-eavesdropping device is provided which consists of a first structure for containing sound waves produced by a first person. This first structure includes a sound attenuating breathing device. This first structure includes a first mechanism for converting sound waves into electric waves, which are then transferred to a second structure which is for forming an acoustic seal about the ears of a second person. This second structure includes a second mechanism for converting the electric waves back to the sound waves. Because the device enables two or more people to engage in conversation, in such a way that no sound can escape into the environment to be detected in any way, by the human ear or by any kind of eavesdropping device utilizing direct or indirect interception of sound waves (such as microphones or vibration - detection equipment utilizing laser beams), the device can be used to produce confidential communications in the presence of eavesdroppers and eavesdropping equipment.
CA002134408A 1994-05-23 1994-10-26 Anti-eavesdropping device Expired - Fee Related CA2134408C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/247,293 US5533131A (en) 1994-05-23 1994-05-23 Anti-eavesdropping device
US08/247,293 1994-05-23
PCT/US1996/011137 WO1998001008A1 (en) 1994-05-23 1996-07-01 Anti-eavesdropping device

Publications (2)

Publication Number Publication Date
CA2134408A1 true CA2134408A1 (en) 1995-11-24
CA2134408C CA2134408C (en) 2001-01-09

Family

ID=26791122

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002134408A Expired - Fee Related CA2134408C (en) 1994-05-23 1994-10-26 Anti-eavesdropping device

Country Status (3)

Country Link
US (1) US5533131A (en)
CA (1) CA2134408C (en)
WO (1) WO1998001008A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0904672A4 (en) * 1996-07-01 2004-03-24 C A Kury Anti-eavesdropping device

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427244A (en) * 1992-12-28 1995-06-27 Ikeguchi; Shigetaka Packing device
US5933511A (en) * 1997-07-21 1999-08-03 Garth, Sr.; John R. Hands-free amplification system
US7362973B1 (en) 1999-09-15 2008-04-22 International Business Machines Corporation Protecting secret data entry from infrared and audio eavesdropping
US20070127659A1 (en) * 2005-11-17 2007-06-07 Mcclory Daniel J Remote telecommunication privacy device
US20080134402A1 (en) * 2006-11-15 2008-06-12 Bailey William R Sports apparatus for covering a user's mouth
US8203850B2 (en) * 2008-02-05 2012-06-19 Vector Technologies, Llc Anti-eavesdropping device
US20120219163A1 (en) * 2011-02-25 2012-08-30 International Business Machines Corporation Apparatus facilitating effective communication in noise-prone environments
KR101279046B1 (en) 2012-11-28 2013-07-02 임서정 Exclusive listening and vocal learning is a possible learning device
CN104284263A (en) * 2013-07-03 2015-01-14 付文敬 Mask type sound-insulation microphone
KR101372383B1 (en) * 2013-10-24 2014-03-12 최원석 Sound detector
US9407989B1 (en) 2015-06-30 2016-08-02 Arthur Woodrow Closed audio circuit
USD813202S1 (en) * 2016-03-28 2018-03-20 Guy R. Johnson Lip shield
USD815063S1 (en) 2016-04-11 2018-04-10 Annette Stewart Lip screening device
JP6789342B2 (en) 2019-04-02 2020-11-25 サウンドハウンド，インコーポレイテッド mask
US11134326B2 (en) 2019-04-05 2021-09-28 Guy R. Johnson Mouthguards and methods of use
DE102019213894A1 (en) * 2019-09-11 2021-03-11 mutum GmbH Limiting sound emissions in speech detection arrangements
USD955650S1 (en) 2020-04-06 2022-06-21 Guy R. Johnson Mouthguard

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1656914A (en) * 1925-10-17 1928-01-24 Hart Henry Ridgeway Communicating helmet
US3586977A (en) * 1969-01-02 1971-06-22 Harvey V Lustig Communication system for helmeted motorcycle riders
US4072831A (en) * 1976-09-10 1978-02-07 Instrument Systems Corporation Voice transmitting apparatus for a breathing mask
JPH06237499A (en) * 1993-02-09 1994-08-23 Sony Corp Headphone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0904672A4 (en) * 1996-07-01 2004-03-24 C A Kury Anti-eavesdropping device

Also Published As

Publication number Publication date
WO1998001008A1 (en) 1998-01-08
CA2134408C (en) 2001-01-09
US5533131A (en) 1996-07-02

Similar Documents

Publication Publication Date Title
CA2134408A1 (en) Anti-Eavesdropping Device
Batteau The role of the pinna in human localization
US8229740B2 (en) Apparatus and method for protecting hearing from noise while enhancing a sound signal of interest
US6690800B2 (en) Method and apparatus for communication operator privacy
US5526421A (en) Voice transmission systems with voice cancellation
CA2193478A1 (en) Tinnitus masking using ultrasonic signals
US5659620A (en) Ear microphone for insertion in the ear in connection with portable telephone or radios
GB2104754A (en) Method and apparatus for reducing repetitive noise entering the ear
Webster Speech communications as limited by ambient noise
ATE147961T1 (en) ACTIVE NOISE ABSORPTION SYSTEM
GB9816394D0 (en) Acoustic devices
DK0848893T3 (en) Headphone with ear pads and organs for limiting the compression of the pads
EP1120990A4 (en) Transmitter/receiver comprising bone-conduction speaker
DK0700627T3 (en) Procedure for realizing background interception, as well as radio unit
Schwander et al. Effect of two-microphone noise reduction on speech recognition by normal-hearing listeners
Brogden et al. Physiological noise generated under earphone cushions
Shaw Hearing protector attenuation: A perspective view
RU2742720C1 (en) Device for protection of confidential negotiations
Tran et al. Speech intelligibility of air conducted and bone conducted speech over radio transmission
Pollack Specification of sound-pressure levels
JPH067397A (en) Soundproof ear cover
RU11430U1 (en) DEVICE FOR PROTECTING CONFIDENTIAL NEGOTIATIONS
Hayashi et al. Designing a Conversation Support Tool for Quiet Environments by Focusing on the Characteristics of Ultrasonic Waves
JPH03160832A (en) Remote interactive voice transmitter-receiver
KR20000000359A (en) earphone without electromagnetic wave

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20071026