| 摘要 |
PURPOSE:To control easily the relative speed of a rotary head in the quick traversing and rewind modes with a device which records and reproduces the information signal after converting it into a PCM, by recording a prescribed fixed pattern between pieces of music and then detecting the fixed pattern by a rotary head to perform the program searching. CONSTITUTION:Tracks 3A and 3B are formed on a tape 1 by a rotary head, and the audio PCM signal and the tracking signal are recorded at areas AP and AT, respectively. Then the fixed data is recorded to a record area of the PCM signal a music interval To. When the tape 1 is quick traversed or rewound at a speed N times as high as the normal speed, the rotary head scans as shown by solid lines 61-63 in a quick traversing mode and as shown by broken lines 71-73 in a rewind mode respectively. The rotary head always crosses the track where the fixed data is recorded as long as the time TN corresponding to the number of tracks where the head crosses with the scanning of one time in a record mode is smaller than the period To. Thus it is possible to obtain a signal containing the information on the program searching. |
