FR2258675B1 - - Google Patents

Info

Publication number
FR2258675B1
FR2258675B1 FR7502177A FR7502177A FR2258675B1 FR 2258675 B1 FR2258675 B1 FR 2258675B1 FR 7502177 A FR7502177 A FR 7502177A FR 7502177 A FR7502177 A FR 7502177A FR 2258675 B1 FR2258675 B1 FR 2258675B1
Authority
FR
France
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
Application number
FR7502177A
Other languages
French (fr)
Other versions
FR2258675A1 (US06811534-20041102-M00003.png
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.)
Microwave and Electronic Systems Ltd
Original Assignee
Microwave and Electronic Systems Ltd
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 Microwave and Electronic Systems Ltd filed Critical Microwave and Electronic Systems Ltd
Publication of FR2258675A1 publication Critical patent/FR2258675A1/fr
Application granted granted Critical
Publication of FR2258675B1 publication Critical patent/FR2258675B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
    • G08B13/2497—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field using transmission lines, e.g. cable

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Burglar Alarm Systems (AREA)
FR7502177A 1974-01-23 1975-01-23 Expired FR2258675B1 (US06811534-20041102-M00003.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB320974A GB1475111A (en) 1974-01-23 1974-01-23 Intrusion sensor

Publications (2)

Publication Number Publication Date
FR2258675A1 FR2258675A1 (US06811534-20041102-M00003.png) 1975-08-18
FR2258675B1 true FR2258675B1 (US06811534-20041102-M00003.png) 1982-02-05

Family

ID=9754016

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7502177A Expired FR2258675B1 (US06811534-20041102-M00003.png) 1974-01-23 1975-01-23

Country Status (6)

Country Link
US (1) US4079361A (US06811534-20041102-M00003.png)
JP (1) JPS50115799A (US06811534-20041102-M00003.png)
AU (1) AU507209B2 (US06811534-20041102-M00003.png)
DE (1) DE2502610C2 (US06811534-20041102-M00003.png)
FR (1) FR2258675B1 (US06811534-20041102-M00003.png)
GB (1) GB1475111A (US06811534-20041102-M00003.png)

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IT1044402B (it) * 1975-06-19 1980-03-20 Autostrade Concess Const Barriera a scansione per la discriminazione ed il conteggio di oggetti e piu specificamente di veicoli in transito attraverso uno sbarramento laminare di microonde elettromagnetiche
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US4318102A (en) * 1980-04-15 1982-03-02 The United States Of America As Represented By The Secretary Of The Air Force Intrusion detection system having look-up sensor instrumentation for intrusion range and altitude measurements
US4481516A (en) * 1980-10-27 1984-11-06 Michelotti Paul E Low visibility runway monitor
FR2538935A1 (fr) * 1982-12-30 1984-07-06 Thomson Csf Barriere hyperfrequence a grande sensibilite
DE3336610A1 (de) * 1983-10-07 1985-04-25 Hörmann GmbH, 8011 Kirchseeon Mikrowellenschranke
US4673935A (en) * 1984-01-26 1987-06-16 The Boeing Company Instrusion detection system
SE449540B (sv) * 1985-10-31 1987-05-04 Ericsson Telefon Ab L M Vagledarelement for en elektriskt styrd radarantenn
US4872020A (en) * 1987-01-23 1989-10-03 Hughes Aircraft Company Slot antenna in circular waveguide
US4825219A (en) * 1987-01-23 1989-04-25 Hughes Aircraft Company Slot antenna in circular waveguide
GB9512753D0 (en) * 1995-06-22 1995-08-30 Dando David J Intrusion sensing system
GB2317486B (en) * 1995-06-22 2000-01-12 David John Dando Intrusion sensing systems
JP4092438B2 (ja) * 1999-08-19 2008-05-28 オプテックス株式会社 侵入検知方法および装置
US6204772B1 (en) 1999-12-16 2001-03-20 Caterpillar Inc. Method and apparatus for monitoring the position of a machine
US6466157B1 (en) * 2001-07-17 2002-10-15 Sensor Technologies & Systems, Inc. Electronic fence using high-resolution millimeter-wave radar in conjunction with multiple passive reflectors
WO2007058302A1 (ja) * 2005-11-21 2007-05-24 Nec Corporation 位置推定システム、位置推定方法および位置推定用プログラム
US7262729B1 (en) * 2006-06-19 2007-08-28 General Electric Company Radio detection and ranging intrusion detection system
US7804441B1 (en) 2007-07-13 2010-09-28 The United States Of America As Represented By The Secretary Of The Navy Detection of concealed object by standing waves
US7872604B2 (en) * 2007-12-20 2011-01-18 Honeywell International Inc. System and method for reducing interference in microwave motion sensors
FR2936891B1 (fr) 2008-10-07 2013-03-15 Bubendorff Dispositif de detection de la presence d'un objet ou d'un etre vivant
US9525524B2 (en) 2013-05-31 2016-12-20 At&T Intellectual Property I, L.P. Remote distributed antenna system
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DE102013107696B4 (de) * 2013-07-18 2020-03-05 Sick Ag Mikrowellenschranke
US8897697B1 (en) 2013-11-06 2014-11-25 At&T Intellectual Property I, Lp Millimeter-wave surface-wave communications
US9768833B2 (en) 2014-09-15 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves
US10063280B2 (en) 2014-09-17 2018-08-28 At&T Intellectual Property I, L.P. Monitoring and mitigating conditions in a communication network
US9615269B2 (en) 2014-10-02 2017-04-04 At&T Intellectual Property I, L.P. Method and apparatus that provides fault tolerance in a communication network
US9685992B2 (en) 2014-10-03 2017-06-20 At&T Intellectual Property I, L.P. Circuit panel network and methods thereof
US9503189B2 (en) 2014-10-10 2016-11-22 At&T Intellectual Property I, L.P. Method and apparatus for arranging communication sessions in a communication system
US9973299B2 (en) 2014-10-14 2018-05-15 At&T Intellectual Property I, L.P. Method and apparatus for adjusting a mode of communication in a communication network
DE202014104956U1 (de) 2014-10-17 2016-01-19 Sick Ag Radarreflexionsschranke zur Erfassung von Objekten
US9312919B1 (en) 2014-10-21 2016-04-12 At&T Intellectual Property I, Lp Transmission device with impairment compensation and methods for use therewith
US9577306B2 (en) 2014-10-21 2017-02-21 At&T Intellectual Property I, L.P. Guided-wave transmission device and methods for use therewith
US9769020B2 (en) 2014-10-21 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for responding to events affecting communications in a communication network
US9653770B2 (en) 2014-10-21 2017-05-16 At&T Intellectual Property I, L.P. Guided wave coupler, coupling module and methods for use therewith
US9780834B2 (en) 2014-10-21 2017-10-03 At&T Intellectual Property I, L.P. Method and apparatus for transmitting electromagnetic waves
US9627768B2 (en) 2014-10-21 2017-04-18 At&T Intellectual Property I, L.P. Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith
US10009067B2 (en) 2014-12-04 2018-06-26 At&T Intellectual Property I, L.P. Method and apparatus for configuring a communication interface
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US10224981B2 (en) 2015-04-24 2019-03-05 At&T Intellectual Property I, Lp Passive electrical coupling device and methods for use therewith
US9793954B2 (en) 2015-04-28 2017-10-17 At&T Intellectual Property I, L.P. Magnetic coupling device and methods for use therewith
US9748626B2 (en) 2015-05-14 2017-08-29 At&T Intellectual Property I, L.P. Plurality of cables having different cross-sectional shapes which are bundled together to form a transmission medium
US9490869B1 (en) 2015-05-14 2016-11-08 At&T Intellectual Property I, L.P. Transmission medium having multiple cores and methods for use therewith
US9871282B2 (en) 2015-05-14 2018-01-16 At&T Intellectual Property I, L.P. At least one transmission medium having a dielectric surface that is covered at least in part by a second dielectric
US10650940B2 (en) 2015-05-15 2020-05-12 At&T Intellectual Property I, L.P. Transmission medium having a conductive material and methods for use therewith
US9917341B2 (en) 2015-05-27 2018-03-13 At&T Intellectual Property I, L.P. Apparatus and method for launching electromagnetic waves and for modifying radial dimensions of the propagating electromagnetic waves
US9866309B2 (en) 2015-06-03 2018-01-09 At&T Intellectual Property I, Lp Host node device and methods for use therewith
US10812174B2 (en) 2015-06-03 2020-10-20 At&T Intellectual Property I, L.P. Client node device and methods for use therewith
US9912381B2 (en) 2015-06-03 2018-03-06 At&T Intellectual Property I, Lp Network termination and methods for use therewith
US9913139B2 (en) 2015-06-09 2018-03-06 At&T Intellectual Property I, L.P. Signal fingerprinting for authentication of communicating devices
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Also Published As

Publication number Publication date
AU507209B2 (en) 1980-02-07
DE2502610C2 (de) 1987-03-19
AU7744075A (en) 1976-07-22
US4079361A (en) 1978-03-14
GB1475111A (en) 1977-06-01
DE2502610A1 (de) 1975-07-24
JPS50115799A (US06811534-20041102-M00003.png) 1975-09-10
FR2258675A1 (US06811534-20041102-M00003.png) 1975-08-18

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