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Fingerprint scanning device with contact image sensing module

  • US 7,391,006 B2
  • Filed: 10/05/2005
  • Issued: 06/24/2008
  • Est. Priority Date: 12/28/2004
  • Status: Expired due to Fees
First Claim
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1. A fingerprint scanning device comprising:

  • a contact image sensing module for capturing a fingerprint image, said contact image sensing module including a main circuit board, said main circuit board being a composite circuit board, said composite circuit board including a first rigid printed circuit board, a second rigid printed circuit board, a third rigid printed circuit board and at least a flexible printed circuit board, said first, second and third rigid printed circuit boards being electrically connected to said flexible printed circuit board to respectively form a first composite substrate, a second composite substrate and a third composite substrate;

    a signal conversion controller electrically connected to said contact image sensing module and used to convert said analog fingerprint image to a digital signal;

    a module controller electrically connected to said contact image sensing module and said signal conversion controller and used to control said contact image sensing module and said signal conversion controller; and

    an interface controller electrically connected to said signal conversion controller and said module controller and used to control the transmission of said digital signal to a controller in an electronic device.

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