Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2006-11-28
2006-11-28
Ha, Dac V. (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S349000, C375S350000, C370S537000, C370S542000
Reexamination Certificate
active
07142607
ABSTRACT:
A subband channelizer that includes a demultiplexer that receives input samples of a signal and distributes the input samples to a plurality of channelizer filter banks. A Fourier transform module that receives outputs from the plurality of channelizer filter banks and performs Fourier transformation on each of the outputs of the channelizer filters, and outputs a plurality of Fourier signals. A plurality of multiplier modules that receive the Fourier signals, and each of the Fourier signals is multiplied with an exponential value assigned to each of the plurality of multiplier modules to produce oversampled subbands. A combiner for generating a wideband signal from a plurality of input subbands is also included.
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Gauthier & Connors LLP
Ha Dac V.
Massachusetts Institute of Technology
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