Capsule endoscope apparatus
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United States of America Patent
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Aug 2, 2011
Grant Date -
Nov 9, 2006
app pub date -
Jul 12, 2006
filing date -
Jan 14, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A signal processing circuit of an external device includes a CPU and a memory which are not shown. A program for estimating at least one of the position and orientation of a capsule endoscope on the basis of strength signals received through respective antennas is installed in the signal processing circuit. A single-core coil to generate a magnetic field is arranged in the capsule endoscope. The generated magnetic field is detected by a plurality of coils arranged outside a body, whereby a distance that the capsule endoscope has traveled can be obtained with accuracy. This arrangement controls image-capture timing to reliably capture images necessary for a diagnosis and prevent unnecessary image capture.
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