Dual-processing interference cancelling system and method
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United States of America Patent
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Jan 23, 2001
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app pub date -
Apr 14, 1997
filing date -
Apr 14, 1997
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Abstract
A dual-processing interference cancelling system and method for processing a broadband input in a computationally efficient manner. Dual processing divides the input into higher and lower frequency bands and applies adaptive filter processing to the lower frequency band while applying non-adaptive filter processing to the higher frequency band. Various embodiments are shown including those based on sub-bands, broadband processing with band-limited adaptation, and broadband processing with an external main-channel generator.
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