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Information display device

  • US 9,214,128 B2
  • Filed: 07/16/2012
  • Issued: 12/15/2015
  • Est. Priority Date: 08/10/2011
  • Status: Active Grant
First Claim
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1. An information display device comprising:

  • a processor; and

    a non-transitory memory having stored thereon executable instructions, which when executed, cause the processor to perform;

    displaying an image according to an orientation of a display screen of the information display device, the display screen having a plurality of sides constituting edges of the display screen, the orientation being an orientation where a first side of the display screen among the plurality of sides corresponds to a top of the display screen;

    detecting a posture of the information display device based on information obtained by an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor;

    detecting a centrifugal force direction based on information obtained by the acceleration sensor; and

    determining whether or not the posture of the information display device changes, and determining the orientation of the display screen,wherein in the case where (i) the display screen is in a substantially horizontal state, (ii) the posture of the information display device is determined to have changed, and (iii) the information display device moves by a predetermined angle or more with respect to a reference orientation which is the orientation of the display screen before the posture of the information display device is determined to have changed, the orientation of the display screen is determined so that a side of the information display device corresponds to the top of the display screen, the side of the information display device corresponding to a second side of the display screen different from the first side of the display screen in a direction of the predetermined angle or more from the reference orientation,wherein in the case where (i) the display screen is in the substantially horizontal state, (ii) the centrifugal force direction is detected, and (iii) the posture of the information display device is determined to have changed, the orientation of the display screen is determined so that a side of the information display device farthest in the detected centrifugal force direction corresponds to the top of the display screen, andwherein the image is displayed according to the determined orientation of the display screen such that a top of the image corresponds to the top of the display screen.

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