Adaptive filtering for canceling leaked transmit signal distortion from a received RF signal in an RF transceiver
US8780963B1 · kind B1 · utility
5Cited by
5References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 26, 2012 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Jun 26, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/525
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Adaptive filtering is used to substantially cancel distortion in radio frequency (RF) signals. Such adaptive filtering can be used in an RF transmitting device to pre-compensate an RF signal with compensation (inverse) distortion to cancel inherent transmission path distortion from the RF signal. Adaptive filtering can also be used in a multi-carrier RF receiving device to cancel from a given carrier signal distortion due to cross talk from adjacent carrier signals. Adaptive filtering in an RF transceiver can be used to cancel from a received RF signal distortion arising from leakage of a transmit signal into the receive path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.