Speech to Print: Language Essentials for Teachers.

In an automatic identification system for reading a remote label containing information in the form of a plurality of vertically arrayed horizontal stripes which may include wide stripes and narrow stripes, a stripe width determining circuit which detects a stripe of known absolute width, measures the relative width of the stripe of known absolute width, stores a representation of the relative size of the stripe of known absolute width, measures the relative width of each of the other stripes, and compares the relative width of the stripe of known absolute width with the relative width of each of the other stripes to determine the absolute width of each of the other stripes.