Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2007-03-27
2007-03-27
Bocure, Tesfaldet (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S343000
Reexamination Certificate
active
10242363
ABSTRACT:
A method and system of determining and correcting modulation and offset effects in a received signal. A signal [s(n)] is received subject to modulation effects A on pulse shape or peak [p(n)] and vertical offset B due to multipath where “n” is a pulse rate or samples of the signal. A template of length N incorporates a replica of the original signal [s(n)] without multipath or vertical offset. The template is normalized and generates either an extended template or a balanced template. The extended template is correlated with the received signal [s(n)] by shifting the extended template along the received signal to estimate modulation effects of A at a particular time, n. The average difference between the template and the modulated signal [p(n)] is calculated to determine the magnitude of the offset B for a particular time, n.
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Goren David
Hernandez David
Baker & Botts LLP
Bocure Tesfaldet
Panwalkar Vineeta
Symbol Technologies Inc.
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