Coded data generation or conversion – Converter compensation
Reexamination Certificate
2006-07-11
2006-07-11
JeanPierre, Peguy (Department: 2819)
Coded data generation or conversion
Converter compensation
C341S155000, C341S120000
Reexamination Certificate
active
07075463
ABSTRACT:
A reference voltage generating circuit generates a reference voltage Vref. An A/D converting circuit compares an analog input voltage Vin with the reference voltage Vref to convert the analog input voltage Vin to a digital output value Dout. A measured value storing circuit stores a measured value of the reference voltage Vref in advance and outputs the stored measured value. A user of an A/D converter corrects the digital output value Dout from the A/D converting circuit by use of the measured value of the reference voltage Vref outputted from the measured value storing circuit, thereby obtaining a digital value representing the analog input voltage Vin accurately irrespective of the accuracy of the reference voltage Vref.
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Arimura Kazuyoshi
Hayakawa Atsushi
Ozawa Hidekiyo
Arent & Fox PLLC
Jean-Pierre Peguy
Mai Lam T.
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