Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2005-07-19
2005-07-19
Burd, Kevin (Department: 2631)
Pulse or digital communications
Receivers
Interference or noise reduction
Reexamination Certificate
active
06920191
ABSTRACT:
A pulse-shape estimator calculates an impulse response for the transmit and receive pulse-shaping filters in a mobile wireless terminal. The pulse-shape estimator receives a training signal that has passed through the pulse-shaping filters and known training symbols. Based on the actual received signal containing the training symbols and the expected received signal, the pulse-shape estimator estimates the impulse response of the pulse-shaping filters. The calculated impulse response may be used to improve signal demodulation or to calculate the coefficients for a digital filter applied before demodulation to compensate for pulse-shape distortion.
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Hafeez Abdulrauf
Molnar Karl James
Burd Kevin
Coats & Bennett P.L.L.C.
Telefonaktiebolaget LM Ericsson (publ)
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