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Vascular pattern detection systems

  • US 10,074,005 B2
  • Filed: 06/10/2016
  • Issued: 09/11/2018
  • Est. Priority Date: 06/10/2016
  • Status: Active Grant
First Claim
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1. A vascular pattern detection system on a portable card comprising:

  • a recessed region having a width and a length shorter than the width, wherein the recessed region has a first sloping edge along the width on a first side and a second sloping edge along the width on a second side opposite the first side;

    a first near infrared (NIR) light-emitting diode (LED) array positioned along the first sloping edge;

    an image sensor array positioned on the second sloping edge of the recessed region, the image sensor array to receive light emitted by the first NIR LED array and scattered from blood vessels of a finger to be swiped along the width of the recessed region;

    a NIR filter and spacer positioned over the image sensor array;

    a microlens array positioned over the NIR filter and spacer; and

    an image processor to process image data from the image sensor array to generate a scanned vascular pattern and compare the scanned vascular pattern to a pre-stored pattern stored on the portable card to authenticate the image data.

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