Patent · US Expired

Coherent and non-coherent data path splitting in receivers for improved synchronization

US7359460B2 · kind B2 · utility

3Cited by

5References

23Claims

0Family size

Assignee

Advanced Micro Devices, Inc. · US

Inventors

Michael Schmidt · Dresden, DE
Eric Sachse · Leipzig, DE
Thomas Hanusch · Dresden, DE

Key dates

Filing date	Jun 19, 2003
Grant date	Apr 15, 2008
Priority date	—
Expiry date	Aug 9, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2027/003
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An improved data communication receiver technique is provided which avoids demodulation errors due to abrupt phase changes. A receiver is provided for processing an incoming digitized signal. The receiver comprises a pre-processing portion, a phase error correction unit and a signal evaluation unit. The pre-processing portion is adapted to process the digitized signal for providing a non-coherent pre-processed signal. The phase error correction unit is adapted to correct a phase error of the non-coherent pre-processed signal and output a coherent signal. The signal evaluation unit is adapted to extract information from the non-coherent pre-processed signal and to output a data signal representing the extracted information. The phase error correction unit and said signal evaluation unit are configured to operate simultaneously for a predetermined time.

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