Apparatus and method for monitoring a trunked radio communications system
US7231211B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2002 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | May 16, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W24/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method and apparatus for monitoring a trunked radio communications system by using some type of radio scanning receiver that is not designed for that purpose. In addition, the invention provides a method for automatically determining the polarity of the received control channel data. Further, the invention provides a method for automatically determining the type of trunked radio communications system. In addition the invention provides a method for automatically determining the channels in a trunked radio system and a method for automatically determining the bit rate of transmitted digital signals over a control channel of a trunked radio communications system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.