Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2005-08-16
2005-08-16
Chin, Stephen (Department: 2634)
Pulse or digital communications
Receivers
Interference or noise reduction
Reexamination Certificate
active
06931084
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.
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Badri Sabah
Buchholz Stephan
Eberlein Ernst
Fischer Robert
Gerhaeuser Heinz
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung
Roylance Abrams Berdo & Goodman L.L.P.
Vartanian Harry
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