Column 1 Column 2 Column 3 Column 4 Column 5 Column 6 Column 7 number of "1"-bits A = 00001111111100-00111111111000-00000110011100-00000110001100-00000110011100-00111111111000-00000000000000 40 B = 00001111111100-00110000001100-00111111111100-00110011001100-00110011001100-00011100111000-00000000000000 40 C = 00001111111100-00111111111100-00110000001100-00110000001100-00110000001100-00110000001100-00000000000000 34 D = 00001111111100-00110000001100-00111111111100-00110000001100-00110000001100-00011111111000-00000000000000 38 E = 00001111111100-00111111111100-00110011001100-00110011001100-00110000001100-00110000001100-00000000000000 38 F = 00001111111100-00111111111100-00000011001100-00000011001100-00000000001100-00000000001100-00000000000000 30 G = 00001111111100-00111111111100-00110000001100-00110000001100-00110011001100-00111111001100-00000000000000 40 H = 00001111111100-00111111111100-00000011000000-00000011000000-00000011000000-00111111111100-00000000000000 26 I = 00001111111100-00000000000000-00000000000000-00111111111100-00000000000000-00000000000000-00000000000000 18 J = 00001111111100-00111100000000-00110000000000-00110000000000-00110000000000-00111111111100-00000000000000 28 K = 00001111111100-00111111111100-00000011000000-00000111000000-00001100110000-00111000111000-00000000000000 33 L = 00001111111100-00111111111100-00110000000000-00110000000000-00110000000000-00110000000000-00000000000000 26 M = 00001111111100-00111111111100-00000000011000-00000000110000-00000000011000-00111111111100-00000000000000 34 N = 00001111111100-00111111111100-00000000111000-00000011100000-00001110000000-00111111111100-00000000000000 37 O = 00001111111100-00111111111100-00110000001100-00110000001100-00110000001100-00111111111100-00000000000000 40 P = 00001111111100-00110000001100-00111111111100-00110011001100-00000011001100-00000011111100-00000000000000 38 Q = 00001111111100-00111111111100-00110000001100-00111100001100-00111111111100-11110000000000-00000000000000 42 R = 00001111111100-00111111111100-00000011001100-00000011001100-00001111001100-00111001111000-00000000000000 41 S = 00001111111100-00110001111000-00110011001100-00110011001100-00110011001100-00011110001100-00000000000000 38 T = 00001111111100-00000000001100-00000000001100-00111111111100-00000000001100-00000000001100-00000000000000 28 U = 00001111111100-00111111111100-00110000000000-00110000000000-00110000000000-00111111111100-00000000000000 34 V = 00001111111100-00111111111100-00011100000000-00000111000000-00000001110000-00000000011100-00000000000000 30 W = 00001111111100-00011111111100-00110000000000-00011111000000-00110000000000-00011111111100-00000000000000 35 X = 00001111111100-00111000011100-00001100110000-00000111100000-00001100110000-00111000011100-00000000000000 32 Y = 00001111111100-00000000011100-00000001110000-00111111000000-00000001110000-00000000011100-00000000000000 27 Z = 00001111111100-00111000001100-00111110001100-00110011001100-00110001111100-00110000011100-00000000000000 38 1 = 00001111111100-00000000000000-00000000110000-00000000011000-00111111111100-00000000000000-00000000000000 22 2 = 00001111111100-00111000011000-00111100001100-00110011001100-00110001111000-00110000000000-00000000000000 33 3 = 00001111111100-11000000000000-11000000001100-01100011001100-00110011111100-00011110000000-00000000000000 32 4 = 00001111111100-00000111111110-00000110000000-00000110000000-00111111111100-00000110000000-00000000000000 32 5 = 00001111111100-00110000000000-00110000000000-00110001111110-00011001100110-00001111000110-00000000000000 32 6 = 00001111111100-00011111111100-00110011000110-00110001100011-00110001100000-00011111000000-00000000000000 38 7 = 00001111111100-01110000001100-00011100001100-00000111001100-00000001111100-00000000011100-00000000000000 31 8 = 00001111111100-00111100111100-01100111100110-01100011000110-01100111100110-00111100111100-00000000000000 46 9 = 00001111111100-00000011111000-11000110001100-01100110001100-00110000001100-00011111111000-00000000000000 37 0 = 00001111111100-00011111111000-00110000001100-00110000001100-00110000001100-00011111111000-00000000000000 36 + = 00001111111100-00000011000000-00000011000000-00011111111000-00000011000000-00000011000000-00000000000000 24 - = 00001111111100-00000011000000-00000011000000-00000011000000-00000011000000-00000011000000-00000000000000 18 ? = 00001111111100-00000000001100-00000000001100-11100111001100-00000001111100-00000000000000-00000000000000 25 / = 00001111111100-01110000000000-00011100000000-00000111000000-00000001110000-00000000011100-00000000000000 23 . = 00001111111100-00111000000000-00111000000000-00000000000000-00000000000000-00000000000000-00000000000000 14 , = 00001111111100-00001100000000-01111100000000-00000000000000-00000000000000-00000000000000-00000000000000 15 ‘ = 00001111111100-00000000001110-00000000111000-00000000000000-00000000000000-00000000000000-00000000000000 14 = = 00001111111100-00001100110000-00001100110000-00001100110000-00001100110000-00001100110000-00000000000000 28 ) = 00001111111100-01110000001110-00011100111000-00000111100000-00000000000000-00000000000000-00000000000000 24 ( = 00001111111100-00000000000000-00000000000000-00000111100000-00011100111000-01110000001110-00000000000000 24 : = 00001111111100-00000000000000-00011100111000-00011100111000-00000000000000-00000000000000-00000000000000 20 max number of pixels (including 8 start bits): 46 (“8”), out of 7x14=98 --> 47% duty cycle min number of pixels (including 8 start bits): 14 (“.” and “’”), out of 7x14=98 --> 15% duty cycle