| 摘要 |
PURPOSE:To miniaturize extremely the constitution of a transmission equipment by returning and storing the information transmitted from the 1st transmission equipment, and stored in the 2nd memory of the 2nd, transmission equipment, and using the 1st transmission equipment to recognize the content of the 2nd memory. CONSTITUTION:A transmission equipment 21 includes a master equipment M being the 1st transmission equipment and plural terminal equipments T1-Tn being the 2nd terminal equipments connected electrically to the master equip ment M through a transmission line 1. The input of the information in the master equipment M and the transmission to the terminal equipment T of the said information are repeated to store optional character graphic information to the terminal equipments T1-Tn. Desired information is called to a work area 32 and confirmed even when the information is stored already in any of the terminal equipment T1-Tn and not stored in the memory 24 of the master equipment. Thus, the constitution of the memory 24 of the master equip ment M is miniaturized extremely.
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