| 摘要 |
PURPOSE:To attain simply program search of music, by adding or subtracting a prescribed value to/from a music number being reproduced at present to form a new program search number, allowing to attain new random access. CONSTITUTION:A music number Z being reproduced at present is set to a present reproduction music number set circuit 4. When this music is desired to be listened to once more, a switch S is set to the position (a) and when the next music is desired, the switch S is set to the position (b). When a terminal A goes to low level with the setting to the position (a), the circuit 4 adds 0 to the value Z, and when the terminal B goes to low level with the position set to (b), 1 is added to the value Z and the Y output is obtained. Further, when the switch S is set to the position (a) or (b), an output C of a gate 5 triggers a monostable multivibrator 3, the Y value is latched to the latch circuit 2 at the leading of the Q output, a new music number X(=Y) is applied to a program search circuit 10, the program search is started at the leading of the Q' output and the program search of the music is attained simply. |
