| 摘要 |
<p>PURPOSE: To reproduce a desired analog compact cassette tape at a correct speed by storing a capstan motor speed when a synchronizing signal output of a reference digital compact cassette tape coincides with a reference clock. CONSTITUTION: A digital compact cassette tape 5 recorded at a specific speed is driven by a capstan motor 7, and a synchronizing signal is extracted from a signal reproduced by a head 6 by a detection circuit 13. The synchronizing signal is compared with a reference clock from an oscillation circuit 16 by a comparison circuit 14, and a speed of the capstan motor 7 is controlled via a control circuit 18 to have relation to a prescribed phase. A stabilized speed of the capstan motor 7 is detected by a detection circuit 15, and its value is recorded as a speed signal in a storage circuit 19 via the control circuit 18. A desired analog compact cassette tape 5 is loaded, and a speed of the capstan motor 7 is controlled with the speed signal of the storage circuit 9 as a reference.</p> |
