Transform-based alias cancellation multi-channel tuner

Details Transform-based alias cancellation multi-channel tuner Transform-based alias cancellation multi-channel tuner

2007-11-06

2007-11-06

Phu, Phuong (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S340000, C375S324000, C455S013100, C455S012100

Reexamination Certificate

active

10428973

ABSTRACT:
A satellite receiver includes a signal cancellation tuner for processing a plurality of different transponder signals to simultaneously provide a plurality of different bit streams. The signal cancellation tuner includes (a) a demultiplexer for demultiplexing a received signal representing the plurality of transponder signals into a number of decimated signals, each transponder signal conveying a bit stream, and (b) a transform element operative on the number of decimated signals for providing at least two of the bitstreams simultaneously.

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Tretter, “Introduction to Discrete-Time Signal Processing”, 1976, published by John Wiley & Son, Inc., p. 284.
Haykin, “An Introduction to Analog and Digital Communications”, 1989, published by John Wiley & Son, Inc., pp. 66-71.

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