Digital data recording apparatus, sampling data identification method thereof, and program for identifying sampling data
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United States of America Patent
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Jul 1, 2008
Grant Date -
Nov 23, 2006
app pub date -
May 18, 2006
filing date -
May 19, 2005
priority date (Note) -
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Abstract
A digital data recording apparatus, which can record the exact acquisition time of data, a sampling data identification method thereof, and a program for identifying sampling data, are provided. A CPU 11 reads out the program of a first conversion formula. The CPU 11 uses the first conversion formula to convert a time series of detection temperature data into a time series of actual oscillation frequencies f'' of a reference clock signal. At a subsequent step, the CPU 11 calculates the respective normal sampling timings employing the current time as a reference time by dividing a time series of count values by each of the actual oscillation frequencies f'' corresponding to the respective count values.
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