Processing systems and methods that reduce even-order...

Details Processing systems and methods that reduce even-order... Processing systems and methods that reduce even-order...

2006-04-25

2006-04-25

Williams, Howard L. (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S122000, C327S091000, C327S337000

Reexamination Certificate

active

07034736

ABSTRACT:
Differential processing systems are provided that reduce even-order harmonic energy. The reduction may be selectively converted to, for example, random noise. This effects a tradeoff for processing systems that can afford to accept some increase in noise to thereby gain the benefits of reduction in even-order harmonic energy. In one system embodiment, first and second signal portions of a differential signal are respectively processed along first and second signal paths in a first processing mode and along the second and first signal paths in a second processing mode. The modes are selected to perform the desired conversion of even-order harmonic energy. In another system embodiment, first and second signal portions of a differential signal are processed along first and second signal paths in a first processing mode and inverted versions of these signals are processed along the first and second signal paths in a second processing mode. In addition, output signals are inverted in the second processing mode.

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