Cooperative positioning
US9213081B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2012 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Nov 21, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for determining a position of a pair of portable devices in close proximity to one another, the system comprising: a first portable device configured to form first positioning data for use in accordance with a first position determination mechanism; and a second portable device operable to calculate a position in accordance with the first position determination mechanism; wherein the first portable device is configured to transmit said first positioning data to the second portable device, and the second portable device is configured to calculate a position of the first and second portable devices in dependence on the first positioning data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.