| 摘要 |
PURPOSE:To reproduce a key depressed in the past by only depressing a reproducing key, by providing a memory which includes the reproducing key, a reproducing request, a memory for storing a depressed key, and a memory managing part for managing the memory. CONSTITUTION:A key is stored successively from a memory (1)11 to a memory (n)15, and when it exceeds the memory (n)15, it is stored from the memory (1)11 again. When a reproducing key 8 of a key input part 1 is depressed, a reproducing request 18 is executed to a memory managing part 10, and the memory managing part 10 which has received the reproducing request 18 fetches a key from an optimum memory at that time point and delivers it to a data processing part 9. In this case, it is fetched successively from the memory having the oldest key and delivered to the data processing part 9. However, in case the reproducing key 8 has been depressed continuously, it is fetched from the memory having the next old key of the delivered key and delivered. In case the newest key has been delivered already, the key is fetched from the memory having the oldest key again and delivered.
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