Passive action antitheft device
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United States of America Patent
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Jan 18, 1994
Grant Date -
N/A
app pub date -
Jun 18, 1992
filing date -
Jul 1, 1991
priority date (Note) -
Expired
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Abstract
An antitheft device for vehicles includes a central unit able to inhibit or enable normal function of the vehicle engine responsive to a coded radio signal emitted by a portable unit activated by a radio signal emitted by the central unit. The central unit includes a first memory, a device to transmit at a first frequency a first coded radio signal, CODE 3 chosen at random from a list of codes stored in the first memory device and to receive and recognize a second coded radio signal CODE 4. The portable unit includes a control and command device including a second memory device to receive and recognize the first coded radio signal, CODE 3, emitted by the central unit, a device to transmit at a second frequency a second coded radio signal, CODE 4, chosen in a list of codes stored in said second memory and tied to the first coded radio, signal CODE 3. The central unit is able to command the deactivation of the device which inhibits the engine of the vehicle responsive to the said second coded radio signal.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
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International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Reggiani, Medardo | 24, Via A. Aleardi, I 42100 Reggio Emilia, IT | 3 | 66 |
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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