Patent ID: 6527191
Filing Date: 2003-03-04
Classification: A63F

Abstract:
Playing cards that include a machine-readable bar code defined by a number of mutually parallel and juxtaposed bars, wherein the code is adapted to be read by a plurality of light sensitive detectors, said playing cards comprising: at least one six-position binary bar code where a bar is either present or absent at each position; a reference bar in at least one position adjacent said binary bar code for detection by a light sensitive detector; wherein the binary code and reference bar are read by respective individual light sensitive detectors that correspond in number with the number of bar code positions and with the number of reference bars, wherein each of the light sensitive detectors simultaneously senses the presence or absence of a bar at an associated bar position when the presence of a reference bar is detected as the card is transported in its own plane and over said light sensitive detectors in a direction substantially perpendicular to a longitudinal extension of the bars.