educational materials printed character for overwriting-study thereon

摘要

PURPOSE: A study book with printed letters for tracing study is provided to print the specific codes on letters in order that infants study letters through a device, which recognizes the letters and outputs them as the voice when letters are written by a sensing pen. CONSTITUTION: The study book with printed letters for tracing study includes a voice output code(15), a letters discriminating code(5) and a count code(10). The letters are discriminated by sensing the letters discriminating code(5). It is judged if tracing letters is correctly carried out or not by inputting the count code(10). The voice output is carried out when the voice output code(15) is sensed. The voice output code(15) is located in the point, on which tracing numbers or alphabets are finished, and orders the voice output about the appropriate letters. The letters discriminating code(5) is given to all the phonemes in case of Korean and consists letters as the compounded type.