Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2005-08-23
2005-08-23
Tran, Khai (Department: 2637)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S350000
Reexamination Certificate
active
06934346
ABSTRACT:
An apparatus and method are provided that compensates for the problematic time-varying DC offset by effectively eliminating a near-channel amplited modulated interferer from a signal. The apparatus includes a first channel estimator for estimating a plurality of first channel filter taps Ĥ using a first signal model St, and a second channel estimator for estimating a plurality of second channel filter taps {tilde over (H)} using a second signal model {tilde over (S)}t. The apparatus also includes a processor for selecting which of the first signal model Stand the second signal model {tilde over (S)}tis to be used or was used to substantially eliminate the near-channel amplitude modulated interferer from the received signal. The apparatus can be a mobile phone, base station, direct conversion receiver, or communications system (for example).
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Tran Khai
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