Location data validation by static entities receiving location data items by short-range communication
US7027820B2 · kind B2 · utility
27Cited by
20References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2002 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Feb 20, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A static but movable device has a short-range wireless transceiver by which it can receive location data items. These items are usable by a location-data processing arrangement of the device to derive an estimate of the current location of the device. If the device is moved to another location, this estimate will cease to be valid. Accordingly, the device is provided with a move detection arrangement for detecting indications that the device may have been moved, these indications being used by a location-validity supervisor to determine whether or not the current location estimate is to be treated as still valid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.