Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2008-03-18
2008-03-18
Wang, Ted (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S260000, C375S340000, C375S355000, C375S371000
Reexamination Certificate
active
10193102
ABSTRACT:
A synchronization unit for performing fine synchronization in the Time Domain, the synchronization unit includes a storage configured to store reference signals. A multiplier capable of calculating sum of zero product shift, sum of minus one product shift, and sum of plus one product shift, based on the reference signals. A signal analyzer capable of computing left, center, and right cross-correlation points based on the sum of minus one product shift, the sum of plus one product shift, and the sum of zero product shift. A timing error estimation unit capable of estimating timing error of the received signal based on the left cross-correlation point and the right cross-correlation point. A phase estimation unit capable of estimating common phase error of the received signal based on the sum of zero product shift. A correlation level estimation unit capable of calculating correlation level indicative of a correlation between the received signal and a reflection of the received signal ghost based on the center point.
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Galperin Noam
Manor Yonatan
Morgan & Lewis & Bockius, LLP
Wang Ted
Zoran Corporation
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