Method and apparatus for ciphering and deciphering messages
US4145568A · kind A · utility
45Cited by
0References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1964 |
| Grant date | Mar 20, 1979 |
| Priority date | — |
| Expiry date | Oct 6, 1984 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for ciphering and deciphering messages, wherein series of cipher pulses with an identical pulse distribution are generated by the transmitter and the receiver stations and said pulse distribution is determined by a secret basic code and a code which is derived from date and time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.