System for echo cancellation comprising an improved ghost cancel

Details System for echo cancellation comprising an improved ghost cancel System for echo cancellation comprising an improved ghost cancel

1992-02-05

1993-01-12

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358139, 358167, 358905, 375 13, 375 19, 455 65, 455 671, H04N 708

Patent

active

051794446

ABSTRACT:
A television receiver comprising a system for improved echo cancellation. The system features a superior ghost cancellation reference signal which exhibits improved performance in noisy environments and which exhibits the flat and wide bandwidth necessary for effective channel characterization whiel exhibiting a higher and more evenly distributed amplitude versus time characteristic than that provided by known, non-cyclic ghost cancellation signals.

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M. R. Schroeder, "Synthesis Of Low-Peak-Factor Signals And Binary Sequences With Low Autocorrelation", IEEE Transactions On Information Theory, vol. IT-7, Jan. 1970, pp. 85-89.
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