Adaptive filtering for canceling distortion in radio frequency signals
US8879663B1 · kind B1 · utility
6Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2012 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Jun 26, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03019
- 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 module 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 module 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.