Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 5, 2011
Patent Application Number
11689411
Date Filed
March 21, 2007
Patent Primary Examiner
Patent abstract
An apparatus and method for fingerprint recognition comprises a light source, an optical component, an imaging device and a processor. The light source directs a monochromatic light through the optical component and then forms a plurality of interference fringes on a fingerprint desired to be recognized; the imaging device receives an optical image signal of the interference fringes reflected from the fingerprint and transfers it to an electrical image signal; the processor creates a contour image of the fingerprint according to the electrical image signal for post-recognition.
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