Remote controlled security system
US5554977A · kind A · utility
54Cited by
19References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1995 |
| Grant date | Sep 10, 1996 |
| Priority date | — |
| Expiry date | Apr 27, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/06
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A security system and method is provided for one way communication between a remote transmitter and a receiver which enables a function such unlocking the doors or disarming a security system. The system uses a three part security code having one part which is a pseudo-randomly generated function, one part which is a permanently assigned code to the transmitter/receiver combination and one part which is based on the number of transmissions transmitted by the transmitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.