| 摘要 |
PURPOSE:To reproduce discontinuous information obtained when it is reproduced by a head without taking a tracking, as continuous information, by rotating a disk- shaped recording medium at a higher speed than that of the time of recording, feeding the head in the radial direction of the disk-shaped recording medium, and recording successively detected information to the prescribed position of a memory. CONSTITUTION:A recording data is recorded in a disk D as circular core-shaped recording tracks R1, R2, R3,-from the center Or by a head 8. The head 8 is fed from the inside periphery of a disk D to the outside periphery in accordance with the output of position information of the head 8 by a screw feed, and the disk D is constituted so that its rotating speed becomes constant by the output of a potentiometer. When the recording track is reproduced successively, the head 8 is oscillated and fed successively from the inside periphery of the disk D to the outside periphery, and the reproducing output of the head 8 is fetched to the reproducing side terminal 7p of a sound recording/reproducing switch 6, and supplied to a detector 10. The detector 10 brings a reproducing signal to waveform-shaping to a pulse signal and supplies it to a clock extracting circuit 11, and a clock pulse synchronizing with a reproducing data is extracted. |
