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Inclination calculation apparatus and inclination calculation program, and game apparatus and game program

  • US 8,041,536 B2
  • Filed: 07/13/2010
  • Issued: 10/18/2011
  • Est. Priority Date: 03/28/2006
  • Status: Active Grant
First Claim
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1. A method for calculating an inclination of a game apparatus hand-held input device operable in terms of a posture thereof, wherein the input device includes an acceleration sensor for acquiring acceleration data and an imaging element for acquiring an image of one or more specific imaging targets, the method comprising:

  • computing first inclination information representing an inclination of the input device based upon a coordinate position of one imaging target in an image acquired by the imaging element and an estimated coordinate position of a second imaging target not acquired by the imaging element, wherein the estimated coordinate position of the second imaging target is determined based on acceleration data acquired by the acceleration sensor;

    computing second inclination information representing an inclination of the input device derived solely from acceleration data acquired by the acceleration sensor; and

    computing an inclination of the input device using the first inclination information and the second inclination information.

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