System for preventing unauthorized use of a micro cellular system operating in coexistence with a cellular system
US5625869A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1994 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Mar 25, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/32
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for preventing fraudulent use in a cellular system whereby upon establishment of communication with said micro cellular system, a maintenance console transmits an identifier to the control unit of said micro cellular system. The control unit compares the transmitted identifier to a stored value and controls the operation of the micro cellular system based upon said comparison. Operations of the micro cellular system are terminated if said transmitted value does not match said stored value and maintained if a match is found. The control unit additionally includes a time limit timer which is set upon activation of the control unit and is adapted to be reset upon command from the maintenance console, which command accompanies each communication for which access is maintained. Operation of the micro cellular system is terminated when said time limit expires without resetting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.