Antitheft protection system, method for operating an antitheft protection system and components of an antitheft protection system
First Claim
Patent Images
1. An antitheft protection system for a vehicle comprising:
- at least two transmitting and receiving units located in or on the vehicle,at least one code transmitter to communicate with the at least two transmitting and receiving units,at least one base unit located in the vehicle to communicate with the at least two transmitting and receiving units, whereinthe communication between the at least two transmitting and receiving units and the at least one base unit is effected in a wireless manner, andthe distance between the at least one code transmitter and the vehicle is determined in the at least one base unit on the basis of signals communicated between the transmitting and receiving units and the at least one base unit.
2 Assignments
0 Petitions
Accused Products
Abstract
An antitheft protection system for a vehicle (10) comprises at least one transmitting and receiving unit (12) connected to the vehicle (10), at least one code transmitter (18), which can communicate with the at least one transmitting and receiving unit (12), and at least one base unit (14), which wirelessly communicates with the at least one transmitting and receiving unit (12).
46 Citations
14 Claims
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1. An antitheft protection system for a vehicle comprising:
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at least two transmitting and receiving units located in or on the vehicle, at least one code transmitter to communicate with the at least two transmitting and receiving units, at least one base unit located in the vehicle to communicate with the at least two transmitting and receiving units, wherein the communication between the at least two transmitting and receiving units and the at least one base unit is effected in a wireless manner, and the distance between the at least one code transmitter and the vehicle is determined in the at least one base unit on the basis of signals communicated between the transmitting and receiving units and the at least one base unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for operating an antitheft protection system for a vehicle comprising:
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providing at least two transmitting and receiving units located in or on the vehicle, said units forwarding signals from a code transmitter, said signals having a defined or no phase offset, and providing at least one base unit in wireless communication with the at least two transmitting and receiving units and receiving signals forwarded by the at least two transmitting and receiving units from the code transmitter; evaluating signals received in the base unit, and determining a quantity which is a measure of the distance between vehicle and code transmitter. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification