| 摘要 |
A disc player for reproducing from a disc 1 having a spiral record track thereon comprises a pick-up 2 for reading a signal recorded in the track, a stepping motor 5 driven by pulses to cause the pick-up 2 to have successive step movements along the radius of the disc 1 in response to the supplied pulses, a counter 8 which is cleared when the pick-up 2 is situated at the starting end of the track and produces first positional data representing the position of the pick-up 2 by counting pulses used for driving the motor 5, and a system control circuit 6 for producing second positional data representing a desired location on the disc 1, for obtaining resultant data corresponding to the difference between the first and second positional data, and for generating the pulses used for driving the motor 5 in response to the resultant data. <IMAGE> |
