Keyless entry system for vehicle
First Claim
1. A keyless entry system for a vehicle, wherein an electronic key is activated when said electronic key receives an activation signal transmitted from said vehicle, said electronic key transmits an encrypted signal to said vehicle after judging that said activation signal is a regular signal, and said keyless entry system carries out predetermined control for vehicle-mounted devices after judging that said encrypted signal is a regular signal, said keyless entry system being characterized in that detection distance setting means for changing a detection distance within which said electronic key can receive said activation signal is provided on said vehicle and that by carrying out predetermined operations said keyless entry system enters an adjustment mode wherein said detection distance can be changed by said detection distance setting means.
2 Assignments
0 Petitions
Accused Products
Abstract
A keyless entry system for a vehicle is provided, on the vehicle, with detection distance setting means for changing a detection distance within which an electronic key can receive an activation signal. By carrying out predetermined operations, the keyless entry system enters an adjustment mode wherein the detection distance can be changed by the detection distance setting means. With this configuration, the detection distance can be adjusted while the keyless entry system is mounted on the vehicle, whereby it is possible to attain a system causing no malfunction and ensuring high levels of security.
14 Citations
13 Claims
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1. A keyless entry system for a vehicle, wherein an electronic key is activated when said electronic key receives an activation signal transmitted from said vehicle, said electronic key transmits an encrypted signal to said vehicle after judging that said activation signal is a regular signal, and said keyless entry system carries out predetermined control for vehicle-mounted devices after judging that said encrypted signal is a regular signal,
said keyless entry system being characterized in that detection distance setting means for changing a detection distance within which said electronic key can receive said activation signal is provided on said vehicle and that by carrying out predetermined operations said keyless entry system enters an adjustment mode wherein said detection distance can be changed by said detection distance setting means.
Specification