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Device and method for preventing counterfeiting using a currency serial number reader

  • US 7,567,698 B2
  • Filed: 06/29/2007
  • Issued: 07/28/2009
  • Est. Priority Date: 06/29/2006
  • Status: Expired due to Fees
First Claim
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1. A method for identifying currency that has been used in unlawful activity, comprising:

  • obtaining an image of a currency document using a device coupled to a money-counting machine, wherein the device includes;

    an entry stage that holds a plurality of stationary documents in a stack arrangement;

    an image-capturing device having an image plane extending forwardly from the entry stage, the image-capturing device arranged such that a top or a bottom one of the plurality of stacked documents is visible in the image plane;

    a rotating member coupled to the entry stage that retrieves one of the plurality of documents per rotation and guides the retrieved document into the counting machine; and

    a synchronization mechanism that triggers the image-capturing device once per rotation of the rotating member, such that the image-capturing device captures an image of each document in the stack prior to the document passing into the counting machine;

    capturing a serial number of the currency document from the obtained image using a microprocessor;

    comparing the captured serial number against one or more lists of wanted serial number using the microprocessor; and

    identifying the currency document as having been used in unlawful activity based on the comparison performed using the microprocessor.

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