Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2011-03-08
2011-03-08
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S261000, C375S268000, C375S297000, C375S298000, C375S300000, C375S324000, C375S348000, C375S349000
Reexamination Certificate
active
07903749
ABSTRACT:
A system and device communicates data. A modulation and mapping circuit modulates and maps data symbols into a plurality of multiple subcarriers that are orthogonal to each other based on a fixed or variable symbol rate. A frequency domain spreader circuit is operatively connected to the modulation and mapping circuit and spreads the multiple subcarriers over the frequency domain.
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Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Harris Corporation
Liu Shuwang
Timory Kabir A
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