Device having a modifiable code for protecting against theft of automobile vehicles
First Claim
1. A device for protecting against theft of in particular an automobile vehicle provided with an automatic control for an element of said vehicle such as the engine, said protecting device comprising in combination a keyboard for entering a code of a user of said vehicle, means for converting data entered in said keyboard into an output message containing said user'"'"'s code, programmable and non-volatile memory means for storing a code for unlocking an electronic control device of said engine, means for comparing said unlocking code stored in said memory means with said user'"'"'s code contained in said message coming from said keyboard and for unlocking said electronic control device of said engine upon coincidence of said unlocking code contained in said memory means with said user'"'"'s code contained in said output message, and means for replacing said unlocking code of said control device of said engine by a new unlocking code by action on said keyboard.
1 Assignment
0 Petitions
Accused Products
Abstract
The device can be applied to vehicles provided with an electronic control device for the vehicle engine. The protecting device for includes a keyboard for entering a user'"'"'s code, a microprocessor for converting entered data coming from the keyboard into an output message containing the user'"'"'s code, programmable and non-volatile memory for storing the code for unlocking the engine electronic control device, a microprocessor for comparing the unlocking code stored in the memory with the user'"'"'s code contained in said message coming from the keyboard and unlocking the engine electronic control device when there is coincidence of the code contained in the memory with that contained in said output message, and the microprocessor and the memory being capable of effecting replacement of the unlocking code of the engine control device with a new unlocking code through action on the keyboard.
52 Citations
8 Claims
- 1. A device for protecting against theft of in particular an automobile vehicle provided with an automatic control for an element of said vehicle such as the engine, said protecting device comprising in combination a keyboard for entering a code of a user of said vehicle, means for converting data entered in said keyboard into an output message containing said user'"'"'s code, programmable and non-volatile memory means for storing a code for unlocking an electronic control device of said engine, means for comparing said unlocking code stored in said memory means with said user'"'"'s code contained in said message coming from said keyboard and for unlocking said electronic control device of said engine upon coincidence of said unlocking code contained in said memory means with said user'"'"'s code contained in said output message, and means for replacing said unlocking code of said control device of said engine by a new unlocking code by action on said keyboard.
Specification