Telecontrol system with a plurality of functional ranges selecte

Coded data generation or conversion – Code generator or transmitter

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Details

34082569, 34082572, G08C 1912

Patent

active

056003234

ABSTRACT:
A telecontrol system for the remote execution of functions comprising actuation of devices in a motor vehicle, for example operation of courtesy lights and locking and unlocking of the doors, comprises a receiver module mounted on the vehicle and an emitter unit carried by the user for transmitting coded radio signals to the receiver module. A data signal configuring circuit of the receiver module has a detection threshold level which is regulated according to predetermined zones of functional ranges between the emitter and the receiver module, around the vehicle, in such a way that a function on the vehicle which is controlled by the emitter is only validated if the emitter is in the appropriate zone of functional range.

REFERENCES:
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patent: 4996525 (1991-02-01), Becker, Jr. et al.
patent: 5109221 (1992-04-01), Lambropoulos et al.
patent: 5193210 (1993-03-01), Nicholas et al.
patent: 5319364 (1994-06-01), Waraksa et al.
patent: 5355525 (1994-10-01), Lindmayer et al.
patent: 5379033 (1995-01-01), Fuji et al.
Abstract of Japan Publication No. JP2217580.

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