Advanced embedded code hopping system
US5872519A · kind A · utility
50Cited by
7References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1995 |
| Grant date | Feb 16, 1999 |
| Priority date | — |
| Expiry date | Apr 20, 2015 |
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; at least one remote-control transmitter for transmitting system commands to the controller in a code word having a fixed word and a hopping word therein; the fixed word comprising at least one fixed data bit and the hopping word comprising at least one changing data bit, wherein the hopping word changes its binary value from transmission to transmission of the system commands; and, means for scrambling bits of the fixed word and bits of the hopping word within the code word.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.