Method and apparatus of compensating imbalance of a modulator
US7092454B2 · kind B2 · utility
7Cited by
3References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 2002 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Sep 15, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03C3/406
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Briefly, a method and apparatus to compensate an imbalance of a modulator by providing calibration parameters to a calibration network. The modulator may receive a pair of predetermined sinusoidal in-phase and quadrature signals and output a distorted modulated signal. A processor may process spectral parameters at first and second harmonics of a detected envelope signal of the distorted modulated signal may generate the calibration parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.