Appeal No. 1999-0497
Application 08/760,922
system for locking and/or unlocking the doors of a motor
vehicle.
Representative claim 1 is reproduced as follows:
1. A system with optical or radio remote control for
initializing a system for locking and/or unlocking doors of
motor vehicles, comprising:
a portable transmitter corresponding to a key for a motor
vehicle, said transmitter broadcasting a digital code upon
actuation by a user for locking and/or unlocking doors of the
motor vehicle;
said broadcast digital code received by a receiver in the
motor vehicle, which receiver controls a relevant lock or
locks of the doors of the motor vehicle after a comparison and
correlation of the received digital code with a predetermined
code stored in the receiver;
the digital code being initialized a the predetermined
code at least when the motor vehicle is first used and,
possibly when changes are later made to the digital code,
being reinitialized, that is fixed for following actuations,
by storing in the receiver the broadcast digital code as a new
predetermined code that replaces a previous predetermined
code, the broadcast digital code being also storable in the
transmitter;
an external diagnostic device for supplying at least an
external signal for (re)initialization, that is for
initialization and/or for (re)initialization, the receiver
being switched only after reception of the external signal to
a (re)initialization readiness status before the receiver is
(re)initialized;
the motor vehicle having a diagnostic interface for
electrical testing of motor vehicle units in the motor
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