FR2423015A1 - Antitheft alarm triggering and neutralising system - uses low power portable transmitter attached to key-ring to communicate with receiver in vehicle or building - Google Patents
Antitheft alarm triggering and neutralising system - uses low power portable transmitter attached to key-ring to communicate with receiver in vehicle or buildingInfo
- Publication number
- FR2423015A1 FR2423015A1 FR7811453A FR7811453A FR2423015A1 FR 2423015 A1 FR2423015 A1 FR 2423015A1 FR 7811453 A FR7811453 A FR 7811453A FR 7811453 A FR7811453 A FR 7811453A FR 2423015 A1 FR2423015 A1 FR 2423015A1
- Authority
- FR
- France
- Prior art keywords
- receiver
- vehicle
- building
- low power
- communicate
- 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- Withdrawn
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
- B60R25/1003—Alarm systems characterised by arm or disarm features
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Emergency Alarm Devices (AREA)
- Transmitters (AREA)
- Radio Relay Systems (AREA)
Abstract
The antitheft alarm system uses one or several portable radio signal transmitters (10). Each transmitter emits the same predetermined frequency. A radio receiver is placed in the building, room or vehicle to be protected. The radio receiver is tuned to the transmitter frequency. The radio-receiver controls a relay (7) which has a contact (8, 16) in the supply connections coupling an energy source (4) to the alarm system (1). Each of the transmitters is coupled to the ignition keys (12) of the vehicle. The transmitter and receiver each include a pilot quartz oscillator. The transmitters have a very low power output of the order of several hundred miliwatts so that their ange is about several metres. The transmission frequency is chosen from one of the following bands: 27 MHz, 72MHz, 144MHz, 400 MHz.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7811453A FR2423015A1 (en) | 1978-04-14 | 1978-04-14 | Antitheft alarm triggering and neutralising system - uses low power portable transmitter attached to key-ring to communicate with receiver in vehicle or building |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7811453A FR2423015A1 (en) | 1978-04-14 | 1978-04-14 | Antitheft alarm triggering and neutralising system - uses low power portable transmitter attached to key-ring to communicate with receiver in vehicle or building |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2423015A1 true FR2423015A1 (en) | 1979-11-09 |
Family
ID=9207295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7811453A Withdrawn FR2423015A1 (en) | 1978-04-14 | 1978-04-14 | Antitheft alarm triggering and neutralising system - uses low power portable transmitter attached to key-ring to communicate with receiver in vehicle or building |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2423015A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2493246A1 (en) * | 1980-11-03 | 1982-05-07 | Prost Albert | Centralised locking system for building or automobile - operated automatically in conjunction with anti-theft circuit requiring manual setting |
EP0078962A2 (en) * | 1981-11-03 | 1983-05-18 | GEMINI ELETTRONICA s.r.l. | System for centralized control of a motor-vehicle accesses safety lock device, warning and antitheft installation and other relevant functions connection |
FR2553048A1 (en) * | 1983-10-08 | 1985-04-12 | Gotanda Motohiro | ANTI-THEFT ALARM DEVICE FOR A MOTOR VEHICLE |
US4558307A (en) * | 1982-09-08 | 1985-12-10 | Lienart Van Lidt De Jeude Rola | Reminder device |
US4733215A (en) * | 1985-11-13 | 1988-03-22 | Delta Elettronica S.P.A. | Remote control apparatus for a property protection device |
US4980666A (en) * | 1985-07-26 | 1990-12-25 | Hwang Shih Ming | Two-step alarm disarming device with automatic rearming feature |
US5280267A (en) * | 1991-07-01 | 1994-01-18 | Medardo Reggiani | Passive action antitheft device |
EP0610902A2 (en) * | 1993-02-08 | 1994-08-17 | Winner International | Anti-theft device especially for motor vehicles |
US5459448A (en) * | 1994-06-27 | 1995-10-17 | Dortenzio; Christopher J. | Automotive continuous protection anti-theft system |
US5583486A (en) * | 1994-02-23 | 1996-12-10 | Monaad Corporation Pty Limited | Security access arrangement |
-
1978
- 1978-04-14 FR FR7811453A patent/FR2423015A1/en not_active Withdrawn
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2493246A1 (en) * | 1980-11-03 | 1982-05-07 | Prost Albert | Centralised locking system for building or automobile - operated automatically in conjunction with anti-theft circuit requiring manual setting |
EP0078962A2 (en) * | 1981-11-03 | 1983-05-18 | GEMINI ELETTRONICA s.r.l. | System for centralized control of a motor-vehicle accesses safety lock device, warning and antitheft installation and other relevant functions connection |
EP0078962A3 (en) * | 1981-11-03 | 1983-11-30 | GEMINI ELETTRONICA s.r.l. | System for centralized control of a motor-vehicle accesses safety lock device, warning and antitheft installation and other relevant functions connection |
US4558307A (en) * | 1982-09-08 | 1985-12-10 | Lienart Van Lidt De Jeude Rola | Reminder device |
FR2553048A1 (en) * | 1983-10-08 | 1985-04-12 | Gotanda Motohiro | ANTI-THEFT ALARM DEVICE FOR A MOTOR VEHICLE |
US4980666A (en) * | 1985-07-26 | 1990-12-25 | Hwang Shih Ming | Two-step alarm disarming device with automatic rearming feature |
US4733215A (en) * | 1985-11-13 | 1988-03-22 | Delta Elettronica S.P.A. | Remote control apparatus for a property protection device |
US5280267A (en) * | 1991-07-01 | 1994-01-18 | Medardo Reggiani | Passive action antitheft device |
EP0610902A2 (en) * | 1993-02-08 | 1994-08-17 | Winner International | Anti-theft device especially for motor vehicles |
EP0610902A3 (en) * | 1993-02-08 | 1995-07-05 | Winner Int | Anti-theft device especially for motor vehicles. |
EP1380479A2 (en) * | 1993-02-08 | 2004-01-14 | Winner International Royalty LLC | Anti-theft device especially for motor vehicles |
EP1380479A3 (en) * | 1993-02-08 | 2004-01-21 | Winner International Royalty LLC | Anti-theft device especially for motor vehicles |
US5583486A (en) * | 1994-02-23 | 1996-12-10 | Monaad Corporation Pty Limited | Security access arrangement |
US5459448A (en) * | 1994-06-27 | 1995-10-17 | Dortenzio; Christopher J. | Automotive continuous protection anti-theft system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |