×

Interactive pointing device capable of switching capture ranges and method for switching capture ranges for use in interactive pointing device

  • US 9,223,386 B2
  • Filed: 09/16/2010
  • Issued: 12/29/2015
  • Est. Priority Date: 06/30/2010
  • Status: Active Grant
First Claim
Patent Images

1. An interactive pointing device capable of switching capture ranges, comprising:

  • an image capturing element, configured to;

    detect a light source with a first sensing angle and a first capture range to output a first image having a first pixel area when a distance from the interactive pointing device to the light source is smaller than a reference value, anddetect the light source with a second sensing angle and a second capture range to output a second image having a second pixel area when the distance is greater than the reference value,wherein the first capture range and the second capture range correspond to areas of the image capturing element that are used for sensing light and are respectively defined by a number of pixels, the first sensing angle and the second sensing angle respectively correspond to the first and second capture ranges, the image capturing element operates using the first capture range of the image capturing element at the first sensing angle to sense light, and operates using the second capture range of the image capturing element at the second sensing angle to sense light, the first capture range of the image capturing element is larger than the second capture range of the image capturing element, such that the first pixel area is larger than the second pixel area; and

    a processing unit for controlling the image capturing element to detect the light source with the first sensing angle and the first capture range or with the second sensing angle and the second capture range, converting the first image into a first coordinate data, and converting the second image into a second coordinate data.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×