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Method and apparatus for analyzing a pitched ball

  • US 8,152,658 B2
  • Filed: 07/16/2009
  • Issued: 04/10/2012
  • Est. Priority Date: 08/11/2004
  • Status: Active Grant
First Claim
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1. A non-transitory computer readable medium having computer executable instructions thereon for performing analysis of a pitched ball from a pitcher to a batter that are separated by a first distance, the computer executable instructions including instructions configured to operate one or more computer devices to perform the steps of:

  • processing a measured first speed of the ball thrown over the first distance;

    processing a destination of the ball within a region proximate to the batter; and

    determining a second speed of the ball calculated from the first speed of the ball and the destination;

    wherein the processing a destination involves dividing the region into an array of subregions, and selecting the subregion intersected by the ball; and

    wherein the determining further comprises;

    calculating a time unit over which the ball travels a second distance;

    determining a time period during which the ball travels the first distance;

    calculating a modified pitch speed according to a ratio of the first distance to the time period incremented by the time unit;

    calculating a velocity adjustment unit according to a difference between the first speed and the modified pitch speed;

    assigning multiplier values to the subregions, the multiplier values calculated so as to facilitate a contact of the ball by the batter;

    selecting from the multiplier values the multiplier value assigned to the selected subregion; and

    calculating the second speed according to the sum of the first speed and the product of the selected multiplier value and the velocity adjustment unit.

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