Predistorter and distortion compensation method
US8619905B2 · kind B2 · utility
4Cited by
2References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 26, 2010 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Mar 14, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2201/3233
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A predistorter includes a distortion compensating unit which gives, in advance, a reverse characteristic of a characteristic of input to output of a power amplifier to a transmission signal which is to be input to the power amplifier; a distortion compensation signal generating unit which generates a distortion compensation signal indicating the reverse characteristic based on transmission data that is sample data of the transmission signal and the delayed transmission data; and a delay amount control unit which controls a delay amount of the transmission data according to an output signal of the power amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.