Electronic lock and key system

Details Electronic lock and key system Electronic lock and key system

1984-06-29

1988-02-23

Weldon, Ulysses

Communications: electrical

Continuously variable indicating

With meter reading

235382, 70278, G06F 704, G06K 500, E05B 4900

Patent

active

047273690

ABSTRACT:
An electronic security system and an electronic proximity key for use therein are disclosed in which a multitiered distributed architecture is used to rapidly and flexibly provide ingress and egress through a plurality of electronic locks. In the event of loss of communication with the central processor, the system will continue to function at lower levels of security without interrupting requests for ingress and egress, and will continue to provide alarm monitor processing. An improved proximity key for actuating the security system is disclosed which includes coupling coils that are integrally formed as part of the integrated circuit lead frame associated with the coding circuitry of such key.

REFERENCES:
patent: 3944976 (1976-01-01), Rode
patent: 3969584 (1976-07-01), Miller et al.
patent: 4196418 (1980-04-01), Kip et al.
patent: 4218690 (1980-08-01), Ulch et al.
patent: 4246611 (1981-01-01), Davies
patent: 4354189 (1982-10-01), Lemelson
patent: 4388524 (1983-01-01), Walton
patent: 4415893 (1983-11-01), Roland et al.
patent: 4459474 (1984-07-01), Walton

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-605055