Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2011-03-01
2011-03-01
Tran, Khanh C (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S343000
Reexamination Certificate
active
07899110
ABSTRACT:
A receiver with multiple antennas, such as an 802.11b receiver may generate a magnitude signal for each antenna and add the results to determine a peak signal point in a received frame to provide a bit synchronization signal to a rake receiver component. The receiver may include one or more threshold switches that only pass individual or combined magnitude signals when the magnitude signals are above a certain level. The received frame may be dividing into segments using a switching circuit and registers. A comparator may then evaluate the registers to determine the segment with the highest magnitude signal. In one embodiment, values for adjacent segments may be added to a current segment when determining the segment with the highest magnitude signal.
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Yang Zhiyu
Zhang Hongyuan
Marvell International Ltd.
Tran Khanh C
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