The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2005
Filed:
Apr. 14, 1998
Ernst Eberlein, Grossenseebach, DE;
Sabah Badri, Erlangen, DE;
Stefan Lipp, Erlangen, DE;
Stephan Buchholz, Munich, DE;
Albert Heuberger, Erlangen, DE;
Heinz Gerhaeuser, Waischenfeld, DE;
Robert Fischer, Erlangen, DE;
Ernst Eberlein, Grossenseebach, DE;
Sabah Badri, Erlangen, DE;
Stefan Lipp, Erlangen, DE;
Stephan Buchholz, Munich, DE;
Albert Heuberger, Erlangen, DE;
Heinz Gerhaeuser, Waischenfeld, DE;
Robert Fischer, Erlangen, DE;
Abstract
A method of performing an echo phase offset correction in a multi-carrier demodulation system involves the step of differential phase decoding phase shifts based on a phase difference between simultaneous carriers having different frequencies. An echo phase offset is determined for each decoded phase shift by eliminating phase shift uncertainties related to the transmitted information from the decoded phase shift. The echo phase offsets are averaged in order to generate an averaged offset. Finally, each decoded phase shift is corrected based on the averaged offset.