FR2037882A5 - - Google Patents

Info

Publication number
FR2037882A5
FR2037882A5 FR7008519A FR7008519A FR2037882A5 FR 2037882 A5 FR2037882 A5 FR 2037882A5 FR 7008519 A FR7008519 A FR 7008519A FR 7008519 A FR7008519 A FR 7008519A FR 2037882 A5 FR2037882 A5 FR 2037882A5
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
FR7008519A
Other languages
French (fr)
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.)
Johnson Service Co
Original Assignee
Johnson Service Co
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 Johnson Service Co filed Critical Johnson Service Co
Application granted granted Critical
Publication of FR2037882A5 publication Critical patent/FR2037882A5/fr
Expired 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
    • H04K3/80—Jamming or countermeasure characterized by its function
    • H04K3/88—Jamming or countermeasure characterized by its function related to allowing or preventing alarm transmission
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/20—Countermeasures against jamming
    • H04K3/22—Countermeasures against jamming including jamming detection and monitoring

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Burglar Alarm Systems (AREA)
FR7008519A 1969-03-10 1970-03-10 Expired FR2037882A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80562269A 1969-03-10 1969-03-10

Publications (1)

Publication Number Publication Date
FR2037882A5 true FR2037882A5 (en) 1970-12-31

Family

ID=25192050

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7008519A Expired FR2037882A5 (en) 1969-03-10 1970-03-10

Country Status (4)

Country Link
US (1) US3618083A (en)
DE (1) DE2011380A1 (en)
FR (1) FR2037882A5 (en)
GB (1) GB1308701A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2171139A1 (en) * 1972-02-10 1973-09-21 Aerospace Res

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961323A (en) * 1971-02-22 1976-06-01 American Multi-Lert Corporation Cargo monitor apparatus and method
US3733602A (en) * 1971-05-20 1973-05-15 Motorola Inc Microwave intrusion detecting system and apparatus
US3886549A (en) * 1972-03-24 1975-05-27 Omni Spectra Inc Intrusion detection system
US3877002A (en) * 1973-05-25 1975-04-08 Omni Spectra Inc Intrusion detecting system
US3947834A (en) * 1974-04-30 1976-03-30 E-Systems, Inc. Doppler perimeter intrusion alarm system using a leaky waveguide
US4622539A (en) * 1984-05-03 1986-11-11 Honeywell Inc. Alarm system with alarm message supervision
GB8627332D0 (en) * 1986-11-14 1987-03-18 Marconi Co Ltd Radar system
US5196826A (en) * 1991-06-26 1993-03-23 C & K Systems, Inc. Sensor for detecting the passage of a person or an animal in a field of view
US5469180A (en) * 1994-05-02 1995-11-21 Motorola, Inc. Method and apparatus for tuning a loop antenna
US5950110A (en) * 1997-08-06 1999-09-07 Interactive Techanologies, Inc. Jamming detection in a wireless security system
US6114955A (en) * 1998-06-03 2000-09-05 Interactive Technologies, Inc. System and method for antenna failure detection
JP3793822B1 (en) * 2005-01-07 2006-07-05 オプテックス株式会社 Microwave sensor
JP4747652B2 (en) * 2005-04-15 2011-08-17 株式会社デンソー FMCW radar
US9905120B1 (en) 2016-08-29 2018-02-27 At&T Digital Life, Inc. Alarm initiation when sensor is intentionally jammed
CN110398781A (en) * 2019-08-05 2019-11-01 深圳迈睿智能科技有限公司 Anti-interference microwave sounding module and anti-interference method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111657A (en) * 1960-03-16 1963-11-19 Specialties Dev Corp Compensation for turbulence and other effects in intruder detection systems
US3242486A (en) * 1962-04-20 1966-03-22 Johnson Service Co Intrusion detection system
NL293420A (en) * 1962-05-30
US3378834A (en) * 1966-05-10 1968-04-16 Johnson Service Co Perimeter intrusion detection system
US3383678A (en) * 1966-12-23 1968-05-14 Advanced Devices Lab Inc Moving object detection system
US3465336A (en) * 1968-05-09 1969-09-02 Us Army Doppler radar with clutter controlled filter channel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2171139A1 (en) * 1972-02-10 1973-09-21 Aerospace Res

Also Published As

Publication number Publication date
US3618083A (en) 1971-11-02
DE2011380A1 (en) 1970-09-24
GB1308701A (en) 1973-03-07

Similar Documents

Publication Publication Date Title
AU2270770A (en)
FR2037882A5 (en)
AU429630B2 (en)
FR2037881A5 (en)
AU2355770A (en)
AU442375B2 (en)
JPS508918B1 (en)
AU427401B2 (en)
AU442285B2 (en)
AU428074B2 (en)
AU414607B2 (en)
AU417208B2 (en)
AU442554B2 (en)
AU425297B2 (en)
AU442538B2 (en)
AU442380B2 (en)
AU428129B2 (en)
AU428131B2 (en)
AU442535B2 (en)
AU442463B2 (en)
AU438128B2 (en)
AU442322B2 (en)
AU442357B2 (en)
AT308690B (en)
AR203167Q (en)

Legal Events

Date Code Title Description
ST Notification of lapse