Detection of mobile wireless terminals in crowdsourced data
US10656237B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2018 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Oct 24, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/11
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A mobile wireless transmitter is detected from location data received for a plurality of wireless transmitters obtained through crowdsourcing or wardriving. Location data is held until sufficient time or enough location data is collected from which movement of a wireless transmitter can be detected. Sets of measurement data for each wireless transmitter are determined from the collected location data. The sets of measurement data may include, e.g., Service Set Identifier (SSID), a round trip time (RTT) variance, and/or a neighbor relationship graph for each wireless transmitter. The mobile wireless transmitter is identified from the sets of measurement data. An almanac database may then be published in which any mobile wireless transmitters are identified or excluded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.