Group delay characteristic correcting device and group delay...

Details Group delay characteristic correcting device and group delay... Group delay characteristic correcting device and group delay...

2011-03-29

2011-03-29

Mai, Lam T (Department: 2819)

Coded data generation or conversion

Converter compensation

C375S324000, C455S082000

Reexamination Certificate

active

07916049

ABSTRACT:
A disclosed group delay characteristic correcting device corrects group delay characteristics of an analog low-pass filter used to remove aliasing of a digital-analog converter or an analog-digital converter. The group delay characteristic correcting device includes a digital signal processing unit configured to have an all-pass phase circuit at a stage previous to the digital-analog converter or at a stage subsequent to the analog-digital converter so as to correct the group delay characteristics of the analog low-pass filter.

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