Measurement method and mobile information device
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United States of America Patent
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May 6, 2008
Grant Date -
Oct 18, 2007
app pub date -
May 7, 2007
filing date -
Nov 11, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A measured physical quantity calculating part 41 calculates a measurement result-corrected value obtained by correcting a measurement result of a sensor unit 25 by the use of corrected values for the sensor unit 25. Subsequently, a measurement environment estimating part 42 estimates a terrestrial magnetism measurement environment on the basis of at least one measurement result-corrected value. The estimation result is displayed on a display unit 13 by an estimation result display part 43. In this way, the terrestrial magnetism measurement environment is first estimated and then the terrestrial magnetism is measured by the use of the sensor unit 25. That is, it is possible to measure the terrestrial magnetism by the use of a magnetic sensor mounted on a mobile information device after estimating the terrestrial magnetism measurement environment.
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