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Interface orientation using shadows

  • US 7,552,402 B2
  • Filed: 06/22/2006
  • Issued: 06/23/2009
  • Est. Priority Date: 06/22/2006
  • Status: Active Grant
First Claim
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1. A method of orienting a user interface element on a computer display, comprising the steps of:

  • detecting a point of physical contact on said computer display by a first portion of an object to cause a request for an interface element;

    detecting a shadow cast by a second portion of said object on said computer display;

    determining a representative point of said shadow cast by said second portion of said object;

    determining a shadow axis formed by said representative point of said shadow cast by said second portion of said object and said point of physical contact;

    determining an angular orientation of said shadow axis formed by said representative point of said shadow cast by said second portion of said object and said point of physical contact, wherein said angular orientation is based on a reference angle; and

    displaying said interface element on said display, wherein said interface element is displayed in accordance with said determined angular orientation of said shadow axis formed by said representative point of said shadow cast by said second portion of said object and said point of physical contact.

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