System having advanced embedded code hopping encryption and learn mode therefor
US5952933A · kind A · utility
31Cited by
14References
32Claims
0Family size
Inventors
Key dates
| Filing date | Sep 15, 1997 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Sep 15, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08C2201/62
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system for monitoring and controlling an area comprising a controller for controlling system operational functions and responsive to at least one remote-control transmitter. The transmitter transmits system commands to the controller in a code word having a fixed word and a hopping word therein. The fixed and hopping words are scrambled using a format word resident in the transmitter and sent to the controller only during a learn mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.