Extended time tracking and peak energy in-window demodulation for use in a direct sequence spread spectrum system
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United States of America Patent
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Jul 7, 1998
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N/A
app pub date -
Dec 6, 1995
filing date -
Dec 6, 1995
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Abstract
A direct sequence spread spectrum communication system in a digital cordless telephone having a basestation and a handset that each implement an extended .linevert split.EE.linevert split.+.linevert split.E.linevert split.-.linevert split.L.linevert split.-.linevert split.LL.linevert split. time tracking system and peak matched filter demodulation within a related window to permit one sample per chip analog-to-digital conversion and demodulation for longer code sequences (providing savings in hardware and complexity) and to permit enhanced two sample per chip analog-to-digital conversion and demodulation for shorter code sequences (providing more robust fading immunity).
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