Temperature compensation apparatus for electronic signal
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United States of America Patent
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N/A
Issued Date -
Jan 4, 2007
app pub date -
Jun 23, 2005
filing date -
Jun 23, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A temperature compensation apparatus for an electronic signal, by conversion between digital and analog signals, the internal temperature is corrected and compensated, and the signal output is corrected. The apparatus has a signal converter and a temperature correction unit coupled to the signal conversion unit for performing temperature correction and compensation. The temperature correction unit has a first adder, a first multiplier and a second adder to form a digital circuit. With the real-time measured ambient temperature, reference temperature, temperature compensation coefficient and an input signal, digital arithmetic of temperature correction and compensation is performed, so as to generated the corrected signal output which has been temperature compensated. Thereby, the imprecision caused by temperature drift of reference voltage and inaccuracy is prevented.
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