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System and method for a miniature user input device

  • US 7,474,772 B2
  • Filed: 06/21/2004
  • Issued: 01/06/2009
  • Est. Priority Date: 06/25/2003
  • Status: Active Grant
First Claim
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1. A method of emulating multiple electronic input devices comprising:

  • a. calculating a difference between first patterned image data and second patterned image data using row-based correlation, wherein the row-based correlation comprises obtaining a correlation measure between a single row of the first patterned image data and a single row of the second patterned image data;

    b. translating the difference into linear movement and multiple signals corresponding to output signals of multiple electronic input devices, thereby emulating the multiple electronic input devices, wherein the multiple electronic input devices comprise any two or more of a mouse, a joystick, a navigation bar, and a scroll wheel; and

    c. converting the difference into rotational movement and signals of at least one electronic input device that utilizes rotational movement and is different from the multiple electronic input devices.

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