| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the burden of an operator when he transfers the data by making a mediator device send continuously the received data to itself until it receives a fixed chance, making a transferer device cut off freely its power supply in a data transfer mode to give a chance to the mediator device to complete the preparation for reception of data and starting the transfer of data. SOLUTION: The power supply is cut off to a data transferer device (A) 1 and a data transferer device (B) 2 and only a mediator device (X) 3 is always working. An operator starts his job at the grounded position of the device (A) 1. When the power is supplied, the operator transmits the transfer data containing the final destination information to the device (X) 3 via the device (A) 1. The power is cut off to the device (A) 1 after the data are transferred. Then the operator moves toward the device (B) 2. Meanwhile, the device (X) 3 which has received the data sends repetitively the transfer data to itself.</p> |
