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Systems and methods for visually scrolling through a stack of items displayed on a device

  • US 9,779,695 B2
  • Filed: 02/15/2013
  • Issued: 10/03/2017
  • Est. Priority Date: 12/06/2011
  • Status: Active Grant
First Claim
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1. A computer-implemented method for visually scrolling through a stack of items displayed on a device by tilting the device, the method comprising:

  • determining a current angle of a device;

    setting a neutral reference point for the device by applying a fade to zero over time function to the determined current angle over a predetermined time duration, to reduce the current angle to zero;

    receiving input indicating a tilting motion of the device from the neutral reference point;

    determining, based on the tilting motion, an angular displacement value indicative of an angular displacement of the device from the neutral reference point;

    determining a noise factor based on an angular speed of the tilting motion of the device with respect to a first axis relative to an angular speed of the device with respect to a second axis orthogonal to the first axis;

    determining a speed factor for the tilting motion;

    updating the speed factor based on the noise factor;

    reducing the angular displacement value based on the updated speed factor in response to the angular speed of the tilting motion being outside of a predetermined scrolling speed range;

    providing for display a visual scrolling through the stack of items at a scrolling speed based on the angular displacement value and a direction factor; and

    in response to determining that a maximum tilting position in a forwarding scrolling direction is reached, configuring the device to allow tilting in a reverse direction without scrolling in the reverse direction until the neutral reference point is reset.

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