DE3467647D1 - Barrier using microwaves - Google Patents

Barrier using microwaves

Info

Publication number
DE3467647D1
DE3467647D1 DE8484109376T DE3467647T DE3467647D1 DE 3467647 D1 DE3467647 D1 DE 3467647D1 DE 8484109376 T DE8484109376 T DE 8484109376T DE 3467647 T DE3467647 T DE 3467647T DE 3467647 D1 DE3467647 D1 DE 3467647D1
Authority
DE
Germany
Prior art keywords
microwaves
barrier
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
Application number
DE8484109376T
Other languages
German (de)
Inventor
Ian T Simpson
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.)
Grundig AG
Original Assignee
Hoermann Sicherheitstechnik GmbH
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 Hoermann Sicherheitstechnik GmbH filed Critical Hoermann Sicherheitstechnik GmbH
Priority to DE8484109376T priority Critical patent/DE3467647D1/en
Application granted granted Critical
Publication of DE3467647D1 publication Critical patent/DE3467647D1/en
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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Waveguide Aerials (AREA)
DE8484109376T 1983-10-07 1984-08-08 Barrier using microwaves Expired DE3467647D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8484109376T DE3467647D1 (en) 1983-10-07 1984-08-08 Barrier using microwaves

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833336610 DE3336610A1 (en) 1983-10-07 1983-10-07 MICROWAVE CABINET
DE8484109376T DE3467647D1 (en) 1983-10-07 1984-08-08 Barrier using microwaves

Publications (1)

Publication Number Publication Date
DE3467647D1 true DE3467647D1 (en) 1987-12-23

Family

ID=6211311

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19833336610 Withdrawn DE3336610A1 (en) 1983-10-07 1983-10-07 MICROWAVE CABINET
DE8484109376T Expired DE3467647D1 (en) 1983-10-07 1984-08-08 Barrier using microwaves

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19833336610 Withdrawn DE3336610A1 (en) 1983-10-07 1983-10-07 MICROWAVE CABINET

Country Status (3)

Country Link
EP (1) EP0139920B1 (en)
JP (1) JPS6097285A (en)
DE (2) DE3336610A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520891A1 (en) * 1995-06-08 1996-12-12 Abb Patent Gmbh Arrangement with emissivity structure in the infrared range
US7902979B2 (en) * 2008-04-11 2011-03-08 Raytheon Company Directed energy beam virtual fence
JP5339423B2 (en) * 2008-10-17 2013-11-13 日本信号株式会社 Radar equipment
DE102013107696B4 (en) * 2013-07-18 2020-03-05 Sick Ag Microwave barrier
JP6718651B2 (en) * 2017-08-21 2020-07-08 株式会社パル技研 Environmental change sensor

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016531A (en) * 1955-03-14 1962-01-09 Sperry Rand Corp Antenna distribution system
NL113271C (en) * 1957-09-16
US3093826A (en) * 1960-04-08 1963-06-11 Litton Systems Inc Antenna system
FR1286762A (en) * 1961-01-24 1962-03-09 Csf Antenna system capable of transmitting on several beams
US3277480A (en) * 1963-07-16 1966-10-04 Richard K Gardner Simultaneous matrix lobing antenna
US3300768A (en) * 1963-08-20 1967-01-24 Boeing Co Radiant energy type intrusion alarm system
GB1254571A (en) * 1968-11-27 1971-11-24 Theodore Hafner Improvements in or relating to the detection of objects in an electro-magnetic field
FR2125182B1 (en) * 1971-02-17 1975-10-10 Snecma
FR2231062B1 (en) * 1973-05-22 1977-11-10 Tacussel Maurice
US3877002A (en) * 1973-05-25 1975-04-08 Omni Spectra Inc Intrusion detecting system
GB1475111A (en) * 1974-01-23 1977-06-01 Microwave & Electronic Syst Intrusion sensor
GB1529361A (en) * 1975-02-17 1978-10-18 Secr Defence Stripline antenna arrays
DE2806448C2 (en) * 1978-02-15 1985-01-10 Brown, Boveri & Cie Ag, 6800 Mannheim System for property security and personal protection by means of a microwave barrier
GB2107936B (en) * 1981-10-19 1985-07-24 Philips Electronic Associated Antenna

Also Published As

Publication number Publication date
EP0139920A1 (en) 1985-05-08
JPH0239835B2 (en) 1990-09-07
JPS6097285A (en) 1985-05-31
EP0139920B1 (en) 1987-11-19
DE3336610A1 (en) 1985-04-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: GRUNDIG AG, 90762 FUERTH, DE

8320 Willingness to grant licences declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: GRUNDIG AG, 90471 NUERNBERG, DE

8339 Ceased/non-payment of the annual fee