Patent · US Active

System and method for synchronization, power control, calibration, and modulation in communication transmitters

US7869543B2 · kind B2 · utility

6Cited by

18References

6Claims

0Family size

Assignee

Pine Valley Investments, Inc. · US

Inventors

Ajit Kumar Reddy · Matawan, US
Qing Li · Canton, US
Walid Khairy Mohamed Ahmed · Tinton Falls, US

Key dates

Filing date	Mar 13, 2008
Grant date	Jan 11, 2011
Priority date	—
Expiry date	Sep 18, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/367
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A system is provided for processing a communication signal including a baseband amplitude component and a baseband phase component. The system includes an amplitude predictor configured for closed-loop pre-distortion of a baseband amplitude component, an amplitude lookup table configured for open-loop pre-distortion of the baseband amplitude component, and an amplitude interpolator configured to build up the amplitude lookup table during a closed-loop calibration period. The system also includes a phase predictor configured for closed-loop pre-distortion of a baseband phase component, a phase lookup table configured for open-loop pre-distortion of the baseband phase component, and a phase interpolator configured to build up the phase lookup table during a closed-loop calibration period.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.