Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2006-04-07
2009-06-30
Bayard, Emmanuel (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S285000
Reexamination Certificate
active
07555075
ABSTRACT:
Methods and corresponding systems for suppressing noise in an input signal include setting a minimum overall gain in a noise reduction processor for processing a first frame of data associated with the input signal. In response to a new minimum overall gain being set, the minimum overall gain in the noise reduction processor is replaced with the new minimum overall gain, and a second frame of data associated with the input signal is processed to suppress noise using the new minimum overall gain. The new minimum overall gain can be a function of the input signal or an output signal of the noise reduction processor. The new minimum overall gain can correspond to a difference between an estimated signal-to-noise ratio (SNR) improvement that is calculated using time-domain data and a target SNR improvement.
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Dyba Roman A.
Melles David B.
Pessoa Lucio F. C.
Bayard Emmanuel
Bethards Charles W.
Freescale Semiconductor Inc.
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