Use of a computer to design character recognition logic

The IBM 1210 Sorter/Reader recognizes characters printed in a specified location on paper with magnetic ink. A schematic diagram of the machine system is given in Fig. 1. The characters first come to a writing head which induces a magnetic field in the special purpose ink with which the characters are written. Next this magnetic field is sensed by a multi-channel reading head. The utput of the reading head is a set of ten time-dependent voltage waves.