Vehicle electronic key system

Details Vehicle electronic key system Vehicle electronic key system

E - Fixed Constructions

05

B

E05B 49/00 (2006.01) B60R 25/00 (2006.01) E05B 65/12 (2006.01)

Patent

CA 2540462

To surely perform authentication based on a request signal Sr which is the authorized radio signal even under bad radio environment in which radio noise comes continuously. A portable device which receives a request signal Sr transmitted from a vehicle-mounted device and transmits an answer signal comprises a receiving-sensitivity changing switch which changes receiving sensitivity of a receiving circuit which receives the request signal Sr. As a result, even if the authentication cannot be carried out with normal receiving sensitivity due to the influence of the continuous radio noise, by changing the receiving sensitivity to low sensitivity, and by bringing the portable device physically close to a transmission source of the request signal which is the authorized radio signal, it is made possible to dramatically increase the probability that the authentication based on the authorized radio signal can be carried out.

Affiliated with

Also associated with

Rating

Vehicle electronic key system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vehicle electronic key system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle electronic key system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1729887