Cryptographic based electronic lock system and method of operation
US4837822A · kind A · utility
62Cited by
20References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1986 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Apr 8, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/27
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention relates to electronic locks and electronic locking systems, to electronic locking systems which use remotely encoded keycards and, in particular, to an electronic locking system which utilizes public key cryptography.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.