| 摘要 |
<p>PURPOSE:To prepare a card extraction detecting circuit that can detect even a card extracted from a plurality of cards that are placed extractably during the execution of part of cards. Further, to be able to detect extract all of said cards quickly. CONSTITUTION:In a controller 22, a central processing unit 26 and a latch circuit 27 are installed, and a plurality of cards 24 are laid in this controller freely extractably thereto. The latch circuit 27 has a number of latch circuits corresponding to cards 24, and latches the condition of each extracted card. The central processing unit 26 outputs a read signal at a constant interval to latch circuit 27, and at that point of time, the condition of each extracted card is read out as a parallel signal.</p> |
