DE68920736D1 - Eindringdetektor, der elektromagnetische wellen verwendet. - Google Patents

Eindringdetektor, der elektromagnetische wellen verwendet.

Info

Publication number
DE68920736D1
DE68920736D1 DE68920736T DE68920736T DE68920736D1 DE 68920736 D1 DE68920736 D1 DE 68920736D1 DE 68920736 T DE68920736 T DE 68920736T DE 68920736 T DE68920736 T DE 68920736T DE 68920736 D1 DE68920736 D1 DE 68920736D1
Authority
DE
Germany
Prior art keywords
sufficiently
emitter
signal
aerial
conductive
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 - Lifetime
Application number
DE68920736T
Other languages
German (de)
English (en)
Inventor
Marcel Milin
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
Application granted granted Critical
Publication of DE68920736D1 publication Critical patent/DE68920736D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Geophysics And Detection Of Objects (AREA)
DE68920736T 1988-03-11 1989-03-08 Eindringdetektor, der elektromagnetische wellen verwendet. Expired - Lifetime DE68920736D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8803201A FR2628556A1 (fr) 1988-03-11 1988-03-11 Detection de modification d'un volume par un corps conducteur
PCT/FR1989/000093 WO1989008903A1 (fr) 1988-03-11 1989-03-08 Detecteur d'intrus a ondes hertziennes

Publications (1)

Publication Number Publication Date
DE68920736D1 true DE68920736D1 (de) 1995-03-02

Family

ID=9364194

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68920736T Expired - Lifetime DE68920736D1 (de) 1988-03-11 1989-03-08 Eindringdetektor, der elektromagnetische wellen verwendet.

Country Status (5)

Country Link
EP (1) EP0408595B1 (fr)
AT (1) ATE117448T1 (fr)
DE (1) DE68920736D1 (fr)
FR (1) FR2628556A1 (fr)
WO (1) WO1989008903A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995008126A1 (fr) * 1993-09-14 1995-03-23 Yoco Pty. Ltd. Detection de mouvement

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863240A (en) * 1972-12-08 1975-01-28 Aerospace Res Electromagnetic intrusion detection system
DK135353B (da) * 1974-11-07 1977-04-12 Schloeer Boerge Anlæg til detektering af bevægelige objekter inden for et overvåget område ved mikrobølgediffraktion.
DE2806448C2 (de) * 1978-02-15 1985-01-10 Brown, Boveri & Cie Ag, 6800 Mannheim System zur Objektsicherung und zum Personenschutz mittels einer Mikrowellenschranke
US4334214A (en) * 1979-06-29 1982-06-08 Yagi Antenna Co., Ltd. Warning apparatus using microwaves
FR2578077A1 (fr) * 1985-02-27 1986-08-29 Alsthom Cgee Procede et dispositif de detection d'intrusion a barriere hyperfrequence
DE3525976A1 (de) * 1985-07-20 1987-01-29 Bbc Brown Boveri & Cie Verfahren zur objektsicherung

Also Published As

Publication number Publication date
WO1989008903A1 (fr) 1989-09-21
ATE117448T1 (de) 1995-02-15
EP0408595A1 (fr) 1991-01-23
FR2628556A1 (fr) 1989-09-15
EP0408595B1 (fr) 1995-01-18

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Legal Events

Date Code Title Description
8332 No legal effect for de