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Multi-dimensional image detection apparatus

  • US 9,507,462 B2
  • Filed: 06/13/2012
  • Issued: 11/29/2016
  • Est. Priority Date: 06/13/2012
  • Status: Active Grant
First Claim
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1. A multi-dimensional image detection apparatus, said apparatus comprising:

  • a touch surface on a substrate;

    a first image detection module comprising a first image sensing module and a first light screen;

    a second image detection module comprising a second image sensing module and a second light screen;

    at least one light source for emitting a first predetermined light spectrum being infrared light;

    wherein the first image detection module and the second image detection module located proximally to the touch surface on the substrate for capturing image data based on a received light spectrum,wherein each of the first light screen and second light screen having a first region and a second region, andwherein a first region of each of the first light screen and the second light screen permits only the first predetermined light spectrum to pass through, and a second region of each of the first light screen and the second light screen permits a second predetermined light spectrum to pass through, the second predetermined light spectrum being visible light; and

    a control module coupled to each of the first image sensing module and second image sensing module, wherein the control module;

    processes at least a portion of the image data captured by at least one of the first image sensing module and the second image sensing module;

    determines a location of a foreign object within a detection region based on the processed image data in comparison; and

    switches, automatically, a mode of operation of the first and second image sensing modules between a first mode of operation and a second mode of operation based on the determined location of the foreign object relative to the touch surface, wherein the location of the foreign object is determined based on the first predetermined light spectrum when operating in the first mode of operation, and wherein the location of the foreign object is determined based on the second predetermined light spectrum when operating in the second mode of operation.

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