OPTICAL INFORMATION, PORTABLE TERMINAL, AND METHOD OF ITS USE

摘要

PROBLEM TO BE SOLVED: To improve work efficiency by easily operating a portable terminal and a device to which the portable terminal is connected, and accurately using them. SOLUTION: Optical information, including operation procedures of an external device as information, is provided and is detected by the portable terminal to automatically input required key operation and data. Since identification information and its input operation procedures are detected as optical information by the portable terminal, identification can be made automatically.