| 摘要 |
<p>PURPOSE:To avoid collision of a writing timing to a special reproducing memory and a reading timing by detecting an approach of timings of writing to the special reproducing memory and reading at a variable speed special reproduction time and controlling the drive of a tape. CONSTITUTION:A digital sound signal read from a reproducing memory 13 is written in the special reproducing memory 17 at one field unit with a special reproducing memory controller 18 based on the inspection result of a field updating detection circuit 16. The read accompanied with a time axis extension from the memory 17 is performed by varying a reading clock frequency in accordance with a reproducing tape speed information from a speed information correction circuit 22. At this time, a writing address to the memory 17 from the controller 18 and a reading address are compared and based on the difference of both, a correction instruction is outputted to the circuit 22 and a tape speed instruction part 3 and a writing timing to the memory 17 is controlled with a capstan motor driving part 4. Hence good reproduction is available with a frequency pitch in accordance with a tape reproduction speed.</p> |
