System for determining the location of entrances and areas of interest
US9541404B2 · kind B2 · utility
2Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2014 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Mar 5, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In one aspect, GPS data, ambient signal data, radio frequency data and/or other types of data are used to determine the location of an entrance to an area or a building. In another aspect, sequential trajectory data is collected and the data is analyzed and/or processed to determine the location of an area of interest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.