Pulse or digital communications – Spread spectrum – Chirp
Reexamination Certificate
2011-04-12
2011-04-12
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Spread spectrum
Chirp
C375S130000
Reexamination Certificate
active
07924904
ABSTRACT:
A network device for cancelling spurs without affecting an incoming signal. The network device includes an estimator for estimating amplitude and phase of a spur over a predetermined period of time. The network device also includes processing means for freezing further estimation of the amplitude and phase of the spur, for cancelling for an estimated spur and for allowing incoming packets. The network device further includes subtracting means for subtracting the estimated spur from an incoming packet. The estimated spur is subtracted from the incoming packet without affecting incoming signals that are not part of the estimated spur.
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Adaptive noise cancelling: Principles and applications Widrow, B. et al.; Proceedings of the IEEE vol. 63, Issue 12, Dec. 1975 pp. 1692-1716.
Gaikwad Rohit
Trachewsky Jason Alexander
Broadcom Corporation
Liu Shuwang
McAndrews Held & Malloy Ltd.
Neff Michael R
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