Electronic locking apparatus for motor vehicles

Details Electronic locking apparatus for motor vehicles Electronic locking apparatus for motor vehicles

1986-09-09

1988-02-02

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

235382, 361171, 340 63, H04Q 904, E05B 4900

Patent

active

047231211

ABSTRACT:
A simple and economical, yet tamper-proof, electronic locking apparatus for motor vehicles features an electronic key and an electronic lock, which each contain a synchronized, constantly operating, precision oscillator. The output of each oscillator is applied at a predetermined counting rate to a respective number sequence generator. Both generators contain the same predetermined number sequence, which they step through at the same clock rate, applying the instantaneous value of the count to a first input of a respective computer. A second input of each computer is connected to a fixed memory which supplies a permanent, characteristic code number to the computer. Both the count state and the characteristic code number are combined using corresponding algorithms in the key and in the lock to produce a combination code. The key-produced combination code is sent from a transmitter in the key to a receiver in the lock and compared there with the lock-produced combination code. In the event of a successful comparison, a control pulse is generated, which actuates various positioning means in the lock.

REFERENCES:
patent: 4143368 (1979-03-01), Route et al.
patent: 4213118 (1980-07-01), Genest
patent: 4514852 (1985-04-01), Hanni et al.
patent: 4596985 (1986-06-01), Bongard et al.
patent: 4686529 (1987-08-01), Kleefeldt

Affiliated with

Also associated with

Rating

Electronic locking apparatus for motor vehicles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic locking apparatus for motor vehicles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic locking apparatus for motor vehicles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1637515