Transmitting and receiving spread spectrum signals using continuous waveforms
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United States of America Patent
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Aug 31, 2010
Grant Date -
Sep 9, 2004
app pub date -
Aug 11, 2003
filing date -
Jul 26, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Systems and methods are described for transmitting and receiving spread spectrum signals using continuous waveforms. A method of transmitting a spread spectrum signal includes: generating a plurality of substantially continuous waveforms; summing the plurality of substantially continuous waveforms; modulating the summed plurality of substantially continuous waveforms to generate the spread spectrum signal; and transmitting the spread spectrum signal. A method of receiving a spread spectrum signal includes: generating a plurality of substantially continuous waveforms; summing the plurality of substantially continuous waveforms; modulating the summed plurality of substantially continuous waveforms with a code; mixing the modulated summed plurality of substantially continuous waveforms with the spread spectrum signal to produce a baseband signal; integrating the baseband signal; and detecting data.
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