Wireless communication device capable of accurately performing position estimations
US9151823B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2012 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Jun 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wireless communication device capable of more accurately estimating its location in an indoor environment is disclosed. In an indoor environment, the wireless communication device may seek to generate a fingerprint map so as to later identify its location within the environment. However, the map requires the device to at least estimate its current position. Therefore, the device includes one or more sensors to identify each of a bearing and a speed of the device. For example, the speed may be determined based on sensed steps and a stored step length. This information may then be used to estimate the device's location as it moves through the indoor environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.