Determining the distance and/or acoustic quality between a mobile device and a base unit
US9338278B2 · kind B2 · utility
2Cited by
7References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2012 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Jun 11, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/73
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
To determine the distance and/or acoustic quality between a mobile device and a base unit, an acoustic signal is received by a microphone in one of said mobile device and base unit. A correlation of a second signal with the received acoustic signal is determined. An acoustic quality and/or a distance between the mobile device and the base unit is determined based on one or more peaks in the result of the step of determining the correlation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.