FR2304129A1 - Automobile electronic anti-theft device - gives alarm as soon as car door is opened and uses electromagnetic field principles - Google Patents

Automobile electronic anti-theft device - gives alarm as soon as car door is opened and uses electromagnetic field principles

Info

Publication number
FR2304129A1
FR2304129A1 FR7508817A FR7508817A FR2304129A1 FR 2304129 A1 FR2304129 A1 FR 2304129A1 FR 7508817 A FR7508817 A FR 7508817A FR 7508817 A FR7508817 A FR 7508817A FR 2304129 A1 FR2304129 A1 FR 2304129A1
Authority
FR
France
Prior art keywords
soon
opened
electromagnetic field
car door
circuit
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.)
Withdrawn
Application number
FR7508817A
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.)
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
Priority to FR7508817A priority Critical patent/FR2304129A1/en
Publication of FR2304129A1 publication Critical patent/FR2304129A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R25/1004—Alarm systems characterised by the type of sensor, e.g. current sensing means
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R25/1001—Alarm systems associated with another car fitting or mechanism, e.g. door lock or knob, pedals

Abstract

The automobile antitheft electronic device is supplied from a battery source and has a sound warning system. Around the conductor supplying the alarm system is an induction winding. The winding is wound onto a circular magnetic circuit, and is connected in series with capacitor. The winding and capacitor form a resonant circuit which detects increase and decrease in the current from the battery source. Each of the automobile electrical accessories is shunted by a high resistance. Thin resistance ensures that when the accessory is switched off, a low valve current is maintained in the alarm circuit. The circuit being triggered when one of the accessories is removed. The system also contains a general switch which operates by means of a key which neutralises the system.
FR7508817A 1975-03-14 1975-03-14 Automobile electronic anti-theft device - gives alarm as soon as car door is opened and uses electromagnetic field principles Withdrawn FR2304129A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7508817A FR2304129A1 (en) 1975-03-14 1975-03-14 Automobile electronic anti-theft device - gives alarm as soon as car door is opened and uses electromagnetic field principles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7508817A FR2304129A1 (en) 1975-03-14 1975-03-14 Automobile electronic anti-theft device - gives alarm as soon as car door is opened and uses electromagnetic field principles

Publications (1)

Publication Number Publication Date
FR2304129A1 true FR2304129A1 (en) 1976-10-08

Family

ID=9152859

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7508817A Withdrawn FR2304129A1 (en) 1975-03-14 1975-03-14 Automobile electronic anti-theft device - gives alarm as soon as car door is opened and uses electromagnetic field principles

Country Status (1)

Country Link
FR (1) FR2304129A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020012512A1 (en) 2018-07-11 2020-01-16 Galdieriauto S.R.L. Data interruption device and related method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020012512A1 (en) 2018-07-11 2020-01-16 Galdieriauto S.R.L. Data interruption device and related method
CN112533800A (en) * 2018-07-11 2021-03-19 加尔迪埃里亚托有限公司 Data interrupt apparatus and related method
CN112533800B (en) * 2018-07-11 2022-11-01 加尔迪埃里亚托有限公司 Data interrupt apparatus and related method

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Legal Events

Date Code Title Description
ST Notification of lapse