| 摘要 |
<p>PURPOSE:To make running of tape operable depending upon the contents of a counter by providing a circuit which judges the contents of the up-down counter counting the running of the tape. CONSTITUTION:Count numbers of A and B are respectively set in memory circuits 4a and 4b which register and store the count numbers corresponding to the positions at both ends in the section of the tape to be reproduced and the tape is run for reproduction with an external switch 3. An up-down counter 1 performs counting according to running of the tape and when its count number reaches B, a signal is produced from a coincidence circuit 5b. This signal actuates an output circuit 6 to transmit the signal of rewinding operation to a tape control circuit 2. This signal causes the tape to run backward. As a result, the count value of the counter 1 also decreases and finally reaches A. At this time, a coincidence circuit 5a actuates to produce a signal. This signal actuates the output circuit 6 again to transmit the signal of reproduction operation to a tape control circuit 2, which in turn controls the tape so as to repeat the operation of reproduction again.</p> |
