Reversed echo canceller
US9913026B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2014 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Jan 4, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2203/2094
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method implemented during a communication event conducted between a user device and at least one further user device over a communications network, the method comprising: receiving an audio signal that is to be output from a speaker of said user device, said audio signal comprising at least one microphone signal transmitted from the at least one further user device; detecting that said audio signal comprises at least one audio component of a microphone signal transmitted from one or more of one of said at least one further user device that is co-located with said user device; and based on this detection, removing said at least one audio component from said audio signal to produce an output audio signal for output from said speaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.