Locking device for vehicles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 15, 1990
Issued Date -
N/A
app pub date -
Nov 15, 1988
filing date -
Jul 22, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A locking device for vehicles includes a card including a microprocessor and a transmitter for generating and transmitting commands for locking and unlocking the doors of a motor vehicle. A lock control device includes a microprocessor and a receiver for receiving the commands transmitted by the lock command device. The lock control device will only carry out a receive command if the command is applied to a specific motor vehicle and the motor vehicle is in the proper state to implement the command. Change data is generated by the lock control device and transmitted to the lock command device to change the value of the next subsequent lock command so that the lock command can be uniquely identified with the motor vehicle.
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