Pulse or digital communications – Receivers
Reexamination Certificate
2011-08-02
2011-08-02
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Receivers
C375S150000, C375S260000, C375S267000, C375S342000, C375S343000, C375S347000, C375S354000, C375S356000, C375S363000
Reexamination Certificate
active
07991077
ABSTRACT:
A system including a differential demodulation module that receives modulated signals from R antennas and that differentially demodulates the modulated signals to generate differentially demodulated signals, where R is an integer greater than or equal to 1. A summing module sums the differentially demodulated signals to generate a combined signal. A correlation module correlates the combined signal with derived preamble sequences and generates correlation values based on the correlation. The derived preamble sequences are derived from preamble sequences. Each bit of one of the derived preamble sequences has a first state when a corresponding bit and a bit adjacent to the corresponding bit in a corresponding one of the preamble sequences have opposite states. Each bit has a second state when the corresponding bit and the bit adjacent to the corresponding bit have the same state.
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Lee Jong-Won
Lou Hui-Ling
Fan Chieh M
Marvell International Ltd.
Vlahos Sophia
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