| 摘要 |
<p>PURPOSE:To add an operation display function while data is transmitted with a data carrier to a read/write head in a write/read control unit composed of an ID controller and the read/write head. CONSTITUTION:In the read/write head l3A, a command from a high-order, which is obtained from the ID controller 14, is given to a monostable multivibrator (MM) 31. A response from the data carrier 12 is given to MM 32. An AND circuit 33 drives a display lamp 35 by the output of AND. Thus, the operation display function can be added with simple constitution.</p> |
