Structure and method for echo reduction without loss of information
US7995745B1 · kind B1 · utility
3Cited by
5References
16Claims
0Family size
Inventor
Key dates
| Filing date | Aug 11, 2006 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Jun 9, 2030 |
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.