Acoustic ranging based positioning of objects using sound recordings by terminals
US10641864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2016 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Mar 26, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic communications terminal records in a memory a sampled audio segment of sound sensed by a micro-phone. A time stamp associated with timing of the recording of the sampled audio segment is determined and stored in the memory associated with the sampled audio segment. The sampled audio segment and the time stamp are transmitted through a network interface toward a location service client of a network node that determines location of the electronic communications terminal based on correlating the sampled audio segment and other sampled audio segments of the sound received from other electronic communications terminals. A related network node and corresponding methods by terminals and network nodes are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.