Calibration for echo cancellation in a full duplex communication system
US9887733B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Apr 28, 2017 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Apr 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M9/082
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method that calibrates a device for echo cancellation and a device with calibration for echo cancellation are provided. Devices may be calibrated such that the echo residual error is less than a threshold determined by the calibration accuracy. Non-ideal factors such as mismatch may be eliminated during calibration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.