Patent · US Expired

Phase error corrector and method

US7180960B2 · kind B2 · utility

3Cited by

9References

56Claims

0Family size

Assignee

Advanced Micro Devices, Inc. · US

Inventors

Eric Sachse · Leipzig, DE
Menno Mennenga · Dresden, DE
Thomas Hanusch · Dresden, DE

Key dates

Filing date	Dec 20, 2002
Grant date	Feb 20, 2007
Priority date	—
Expiry date	Mar 13, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2027/0067
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A phase error corrector circuit and method are disclosed. In one embodiment, a phase error corrector circuit delays a PSK modulated signal and multiplies the delayed PSK modulated signal by the PSK modulated signal in order to generate a forward phase correction signal. The input signal is then mixed with the forward phase correction signal. In another embodiment, a phase error corrector circuit calculates a forward phase offset of a complex PSK modulated signal. The complex PSK modulated signal is phase shifted in a mixer by a phase difference offset in order to generate a phase corrected signal. A backward phase correction means calculates a backward phase offset based on the phase corrected signal. A subtractor subtracts the forward phase offset from the backward phase offset for outputting a difference phase offset to the mixer.

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