| 摘要 |
PURPOSE:To detect the wrong perforated areas by storing the information to be supplied to a tape perforator to compare it with the information read by a tape reader, and supplying the compared information to a perforated tape to discriminate immediately the presence or absence of wrong perforations. CONSTITUTION:The binary coded information A is supplied to a tape perforator 1 in the form of electric pulse signals to obtain a perforated tape B. This tape B is put into a tape reader 2, and the perforated information is read out for outputting the information C shown in the form of electric pulse signals. While the information A is also supplied to a memory 3 and stored in the form of electric pulse signals for output of the information D. The information D is outputted synchronously with the information C delivered from the reader 2. The information C is compared with the information D by an information comparing device 4 such as a comparator, etc. Then a signal E is produced when no coincidence is obtained. At the same time, the actuation is stopped with the perforator 1, the reader 2 and the memory 3 respectively. |
