A/D convertion controlling device and image forming apparatus

Details A/D convertion controlling device and image forming apparatus A/D convertion controlling device and image forming apparatus

2008-09-12

2010-06-08

Nguyen, Linh V (Department: 2819)

Coded data generation or conversion

Converter compensation

C341S119000, C341S120000, C341S121000, C341S139000, C341S140000, C358S444000, C358S445000, C358S446000, C358S461000, C358S463000

Reexamination Certificate

active

07733251

ABSTRACT:
A reference voltage generating unit generates a plurality of analog reference voltages, and an A/D converting unit converts the analog reference voltages thus generated and an analog input voltage input from an external device to digital reference values. A CPU generates, based on the analog reference voltages and the digital reference values converted from the analog reference voltages, an equation for correcting the analog input voltage to be converted to a digital value falling in a range of the digital reference values. With the equation generated, the CPU calculates the analog input voltage for the digital value obtained by conversion.

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