Method and apparatus providing improved intermodulation distortion protection
US6125272A · kind A · utility
22Cited by
18References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1998 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Sep 25, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D7/165
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Second order intermodulation distortion (IM2) occurs when two interfacing signals mix with each other through a second order nonlinearity to produce an intermodulation product at the sum and difference frequencies of the two interferers. To reduce the amount of intermodulation distortion, dynamic matching is employed. In practice, dynamic matching operates to transform coefficients of IM2 distortion from constant values into functions of time where they may be handled by known rejection techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.