Xerox glyphs

Pointer: Xerox glyphs encoding process. Publication: The New York Times, July 10, 1994; Section 3; Business; p. 9. Title: Smart Paper Documents for the Electronic Age. Subhead: A new coding method hides computer data in plain view, By: John Holusha. A quote from an illustration: A Xerox technology, known as glyphs, would enable paper business documents to carry thousands of characters of information hidden in unobtrusive gray patterns that can appear as backgrounds or shading patterns. Glyphs could be used for encoding machine-readable data onto paper documents.