| 摘要 |
<p>PURPOSE:To perform a tape counter operation and other control operation by one microcomputer without using a high speed microcomputer. CONSTITUTION:A clock SC of a period corresponding to a rotating speed of a reel base 1 is generated by a rotation detecting means 2. This clock SC from the rotation detecting means 2 is counted by a counter means 3. A counting value of this counter means 3 is fetched, for instance, into a memory at intervals of a determined constant period of time by a timing signal TM from an input terminal 5. The number of clocks in the constant period of time is detected by a detecting means 6 from this fetched counted value. A display value of the tape counter is decided from the information about the number of clocks in the constant time from this detecting means 6. The decided display value is displayed at a display means 8.</p> |
