System and method for in-building presence system
US7403786B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2003 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | May 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A telecommunications system includes a plurality of network clients (150) including a positioning controller (504) and a communications controller (502); and a positioning server (152) including a coordinating controller (161) for maintaining a database of network clients to be tracked and provide updates of position-related information to a presence server (104). The plurality of network clients (150) are configured to transmit position information received via the positioning controller (504) to the positioning server via the communications controller (502), the positioning information including information related to loss of a position signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.