Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions
Reexamination Certificate
2011-01-11
2011-01-11
Ngo, Ricky (Department: 2464)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Particular set of orthogonal functions
C375S260000
Reexamination Certificate
active
07869342
ABSTRACT:
In a transmission device101, a modulation portion102carries out modulation of encoded data based on an adaptive modulation command based on feedback information sent from the receiving side, a frequency symbol diffusion block105multiplies the plurality of signals outputted by a serial-parallel conversion portion104by an orthogonal diffusion code and combines them, a pseudo random-number multiplication portion106multiplies each of them by a pseudo random number, an inverse Fourier transform portion107conducts inverse Fourier transform, a parallel-serial conversion portion108conducts parallel-serial conversion, a guard interval addition portion109adds a guard interval and a transmission portion110transmits a signal so that only one feedback information and modulation level information is required for each frequency symbol diffusion block105and transmission rate can be improved.
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Shogo Fukudo, JP Office Action, Aug. 23, 2010 (English Translation).
Howard & Howard Attorneys PLLC
National Institute of Information and Communications Technology
Ngo Ricky
Sinkantarakorn Pao
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