Structure and method for echo reduction without loss of information
US8422663B1 · kind B1 · utility
1Cited by
7References
19Claims
0Family size
Inventor
Key dates
| Filing date | Jun 24, 2011 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Jun 30, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/6016
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An echo reduction method stores a received audio information stream. A sound detection flag is activated following detection of locally generated sound. Output based on the received audio information stream is muted in response to the activating the sound detection flag. Rendering status of the received audio information stream is saved, in response to the activating the sound detection flag, to reduce loss of audio information. At least a portion of the stored received audio information stream is rendered following inactivation of the sound detection flag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.