Swing analyzer
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United States of America Patent
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Feb 3, 2015
Grant Date -
Oct 1, 2009
app pub date -
Mar 30, 2009
filing date -
Mar 31, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A calculating unit of a swing analyzer calculates, assuming that a golf club is in a uniform circular motion about a virtual center of rotation O during a swing, a virtual speed Vh at a central point R of a golf club head, based on a distance between first and second acceleration sensors, a distance between the first acceleration sensor and the central point R of a golf club head and outputs from the first and second acceleration sensors, and calculates the speed of central point R of a golf club head utilizing the virtual speed Vh.
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