Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2006-03-28
2006-03-28
Burd, Kevin (Department: 2631)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S219000
Reexamination Certificate
active
07020212
ABSTRACT:
The system and method of the preferred embodiments may be directed to improving the signal-to-noise ratio in frequency spectrum regions where narrowband interference may be present. The system and method of the preferred embodiments includes reducing the narrowband interference by determining a noise estimate. In accordance with the noise estimate and output of a frequency domain equalizer, a noise-cancelled output may be obtained.
REFERENCES:
patent: 5479447 (1995-12-01), Chow et al.
patent: 5903608 (1999-05-01), Chun
patent: 6252902 (2001-06-01), Simeon et al.
patent: 6744821 (2004-06-01), Van Acker et al.
3Com Corporation
Burd Kevin
McDonnell Boehnen & Hulbert & Berghoff LLP
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