Circuit method and system for transmitting information
US7856087B2 · kind B2 · utility
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0References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2006 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Oct 19, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/23
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed is an echo suppresser or cancellation circuit including a speech signal extrapolation unit. The speech extrapolation unit may provide extrapolated signal segment approximations to an echo segment replacement unit. The echo segment replacement unit may replace a segment of a first speech signal suspected of being corrupted with an echo component of a second signal using the extrapolated signal segment approximated to represent the corrupted signal segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.