Patent ID: 7251031
Filing Date: 2007-07-31
Classification: G01D,G01J,G01N,G09B

Abstract:
1. A color recognition device comprising a light shield for excluding ambient light during color recognition operation of said color recognition device, illumination means, light sensing means, at least one of said illumination means and said light sensing means comprising a plurality of bandwidth-limited devices operating at different regions of the electromagnetic spectrum, said illumination means and said light sensing means cooperating to detect magnitude of reflected light in respective ones of said different regions of said electromagnetic spectrum and encode said magnitude of reflected light as a computer readable digital or analog value defining a time between two events, an algorithm for converting output of said light sensing means to at least one of normalized color values in a standard format and drive signals for a color display, a storage means for storing a response corresponding to selected combinations of magnitude of reflected light in said different regions of said electromagnetic spectrum, said storage means storing discrete color information which is addressable in accordance with one of said magnitude of reflected light detected by said light sensing means and said normalized color values which is transformed by said algorithm to said standard format, and an output means for providing said response as a perceptible signal.