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Golf clubs and golf club heads having digital lie and/or other angle measuring equipment

  • US 9,421,429 B2
  • Filed: 07/10/2014
  • Issued: 08/23/2016
  • Est. Priority Date: 08/27/2009
  • Status: Active Grant
First Claim
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1. A non-transitory computer-readable medium having computer-readable instructions that when executed by a processor are configured to perform at least:

  • collecting angular rate data from at least one gyroscope located on a golf club, wherein the angular rate data comprises data along three different orthogonal axes;

    collecting acceleration data from at least one accelerometer, wherein the acceleration data comprises data along each of the three orthogonal axes associated with the angular rate data;

    reconstructing at least a portion of saturated sensor data by fitting a second-order polynomial function between a first instance at which a saturation event started and a second instance at which the saturation event ended, wherein the second-order polynomial is used to identify one or more data points over a time period between the first and second instances;

    after determining that an impact event has occurred, executing instructions comprising;

    utilizing roll and pitch data and space-fixed coordinates to calculate at least one of a lie angle, a club face angle, and a loft angle of a club head of the golf club.

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