Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder
Reexamination Certificate
2005-12-27
2005-12-27
JeanPierre, Peguy (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Differential encoder and/or decoder
C341S131000, C341S144000, C341S155000
Reexamination Certificate
active
06980145
ABSTRACT:
A system and method for noise cancellation in a signal-processing circuit (e.g., an analog-to-digital converter circuit). Various aspects of the present invention may comprise inputting a first input signal and a digital input signal to the signal-processing circuit. The digital input signal may, for example, comprise a digital dither signal or other processor control signal. The signal-processing circuit may, for example, output a signal comprising a first signal component that is primarily a function of the first input signal and a second signal component that is primarily a function of the digital input signal. The second signal component may be estimated based on estimated behavior of the signal-processing circuit in response to the digital input signal. The estimated second signal component may, for example, be substantially removed from the signal-processing circuit output signal.
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Broadcom Corporation
Jean-Pierre Peguy
McAndrews Held & Malloy Ltd.
Nguyen Khai M.
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