Coded data generation or conversion – Converter calibration or testing
Reexamination Certificate
2006-10-27
2008-10-28
Nguyen, Khai M (Department: 2819)
Coded data generation or conversion
Converter calibration or testing
C341S143000, C341S155000
Reexamination Certificate
active
07443322
ABSTRACT:
A device for testing an analog-to-digital converter providing a digital signal at a given sampling frequency, comprising a unit for providing a test signal to the converter, the test signal being a periodic signal comprising frequency components only at a fundamental frequency and at harmonics of the fundamental frequency, the fundamental frequency being a multiple of one quarter of the sampling frequency; a filter capable of receiving the digital signal and of rejecting the fundamental frequency to provide a filtered digital signal; and a unit capable of receiving the digital signal and the filtered digital signal and of providing a signal representative of the ratio between the effective powers of the digital signal and of the filtered digital signal.
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International Search Report dated Feb. 2, 2006.
Dolphin Integration
Howard IP Law Group PC
Nguyen Khai M
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