Dedicated device for automatically accessing wireless internet network and supplying wireless packet data-based indoor-capable GPS locations
US7835342B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 15, 2009 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | May 24, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A dedicated device and method for connecting between a packet-data-capable wireless modem and a high sensitivity indoor-capable Global Positioning System (GPS) receiver, and is able to access a commercially available cellular or PCS band wireless Internet network for supplying indoor and outdoor GPS locations to a designated remote Internet server, in an independent, periodic, and automatic manner. Implemented with TCP/IP UDP PPP protocol stacks, the device automatically accesses and retries for always connecting to the wireless Internet network in packet data mode. The device also automatically retrieves the aiding/assisted-GPS (A-GPS) information from either a wireless base station or a specified separate A-GPS server. The device periodically supplies the A-GPS information and receives the indoor-capable GPS locations, to and from the GPS receiver. The indoor-capable GPS locations are packed into Internet User Datagram Protocol (UDP) packet data format and periodically sent to a designated remote server through the wireless Internet network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.