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Baseball-strike indicator and trajectory analyzer and method of using same

  • US 4,545,576 A
  • Filed: 08/13/1983
  • Issued: 10/08/1985
  • Est. Priority Date: 01/15/1982
  • Status: Expired due to Term
First Claim
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1. A baseball-strike-indicator-and-trajectory-analyzer apparatus adapted to be associated with a baseball diamond, including the pitcher'"'"'s mound and home plate, comprising:

  • at least one pair of sensors positioned with respect to said baseball diamond, wherein each of said sensors has a field of vision that includes said pitcher'"'"'s mound, a batter, and said home plate, whereby a ball moving between said pitcher'"'"'s mound and said home plate is continuously within the field of view;

    means connected to said sensors to record and store information, relating to all objects including said ball, received from said sensors;

    means connected to said recording and storing means to convert said information to a computer-compatible digital format;

    computer means adapted to receive and analyze said information in digital form from said digital-converter means;

    means to distiguish said ball from all other objects sensed by said sensors, so that said ball can be recognized and its trajectory defined in time and three-dimensional space;

    means adapted to analyze the initial part of said ball'"'"'s trajectory in order to compute a nominal trajectory;

    means to determine said batter'"'"'s dimensions when in his batting stance;

    means to compute the strike zone for said batter;

    graphics display and storage means adapted to receive computed information from said computer means to display graphically the movement of said ball in various selective pictorial arrangements; and

    means for controlling said apparatus.

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