Digitizer module, a waveform generating module, a converting...

Details Digitizer module, a waveform generating module, a converting... Digitizer module, a waveform generating module, a converting...

2005-03-15

2005-03-15

Wamsley, Patrick (Department: 2819)

Coded data generation or conversion

Converter compensation

C341S120000

Reexamination Certificate

active

06867719

ABSTRACT:
A digitizer module comprises an AD converter for sampling a pair of analog signals at a predetermined time interval and converting into a first and second digital signals respectively, a second signal frequency component calculating unit for calculating a second signal frequency component representing a component of each frequency of the second digital signal on the basis of the second digital signal, a skew frequency component calculating unit for calculating a skew frequency component representing a phase error of each frequency of the second digital signal corresponding to the first digital signal on the basis of a skew of a timing with which the pair of analog signals are sampled by the AD converter and a second signal frequency component correcting unit for correcting the second signal frequency component on the basis of the skew frequency component.

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patent: 6700515 (2004-03-01), Asami

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