Coded data generation or conversion – Converter calibration or testing
Reexamination Certificate
2006-10-02
2008-08-05
Young, Brian (Department: 2819)
Coded data generation or conversion
Converter calibration or testing
C341S155000, C341S161000
Reexamination Certificate
active
07408490
ABSTRACT:
A system and method calibrate a redundant number system analog-to-digital converter (RNS ADC) using successive approximations of multiple input signals and approximating each input signal at least twice. The RNS ADC includes N analog converter reference elements, each of the analog converter reference elements is associated with a weight in a weight vectorW, and N is an integer greater than one. The system and method successively approximate each of M distinct analog input signals twice to generate M respective pairs of successive approximation converter reference element vectors,C1jandC2j,that correspond to digital approximations of the input signals, wherein j ε {0, 1, . . . , M−1}, wherein M is a positive integer. The system and method utilize differences between the successive approximation converter reference element vectors,C1jandC2jto determine a final weight vectorWB. Thus, in at least one embodiment, the difference betweenC1j·WBandC2j·WBcan be used to determine the final weight vectorWB.
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Melanson John L.
Wolff Clinton R.
Chambers Kent B.
Cirrus Logic Inc.
Hamilton & Terrile LLP
Young Brian
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