Floor level determination
US9936342B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2015 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Sep 21, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and computer program product for determining a building floor level are described. A mobile device can use wireless signal sources and location fingerprint data to determine a level of a building floor on which the mobile device is located. The location fingerprint data can include or be associated with a list and a count of wireless signal sources previously detected on each floor. The mobile device can compare the list and count with wireless signal sources detected by the mobile device, and use results of the comparison to configure a statistical filter that determines a location of the mobile device. The mobile device can then determine the location, including a building floor level, using the statistical filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.