Patent · US Expired

Residual phase error correction

US7184507B2 · kind B2 · utility

0Cited by

4References

47Claims

0Family size

Assignee

Advanced Micro Devices, Inc. · US

Inventors

Menno Mennenga · Dresden, DE
Frank Poegel · Dresden, DE
Michael Schmidt · Dresden, DE

Key dates

Filing date	Oct 31, 2002
Grant date	Feb 27, 2007
Priority date	—
Expiry date	Feb 12, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH04W84/12
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A phase error correction technique in data communication receivers such as WLAN (Wireless Local Area Network) receivers is provided. A signal having a phase error is received, and a phase error correction mechanism having a loop structure is operated on the input signal to correct the phase error. The corrected signal still has a residual phase error. The residual phase error is then compensated taking into account a loop time delay of the loop structure. Further, a phase change rate may be taken into account, and a smoothing process may additionally be performed.

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