Personal identification encryptor system and method
US4870683A · kind A · utility
11Cited by
11References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1986 |
| Grant date | Sep 26, 1989 |
| Priority date | — |
| Expiry date | Mar 31, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09C1/04
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An inexpensive encryption device, system and method includes coded alphanumeric characters preprinted according to different key codes or mail-out forms that can be manipulated by a prospective user to yield encrypted data that can be returned over unsecure transmission channels for secure decryption by the operator of a computer-secured operating system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.