FR2107921A1 - - Google Patents

Info

Publication number
FR2107921A1
FR2107921A1 FR7133252A FR7133252A FR2107921A1 FR 2107921 A1 FR2107921 A1 FR 2107921A1 FR 7133252 A FR7133252 A FR 7133252A FR 7133252 A FR7133252 A FR 7133252A FR 2107921 A1 FR2107921 A1 FR 2107921A1
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.)
Withdrawn
Application number
FR7133252A
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Publication of FR2107921A1 publication Critical patent/FR2107921A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/10—Wire waveguides, i.e. with a single solid longitudinal conductor
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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)
  • Burglar Alarm Systems (AREA)
FR7133252A 1970-09-24 1971-09-15 Withdrawn FR2107921A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7518470A 1970-09-24 1970-09-24

Publications (1)

Publication Number Publication Date
FR2107921A1 true FR2107921A1 (de) 1972-05-12

Family

ID=22124105

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7133252A Withdrawn FR2107921A1 (de) 1970-09-24 1971-09-15

Country Status (5)

Country Link
BE (1) BE772278A (de)
CH (1) CH525525A (de)
DE (1) DE2146984A1 (de)
FR (1) FR2107921A1 (de)
NL (1) NL7113187A (de)

Also Published As

Publication number Publication date
NL7113187A (de) 1972-03-28
CH525525A (de) 1972-07-15
DE2146984A1 (de) 1972-03-30
BE772278A (fr) 1972-01-17

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Legal Events

Date Code Title Description
ST Notification of lapse