G - Physics – 11 – B
Patent
G - Physics
11
B
352/32.2, 352/21
G11B 7/00 (2006.01) G11B 19/24 (2006.01) H04N 5/76 (2006.01)
Patent
CA 1210499
ABSTRACT OF THE DISCLOSURE A driving apparatus for a recording medium is disclosed which includes a motor for driving a recording medium, a preset counter for counting either of a reference clock signal and a signal provided by multiplying a reproduced synchronizing signal, the preset counter being reset in response to a synchronizing signal in a reproduced signal when the reference clock signal is counted and being reset in response to a reference synchronizing signal when the signal which is provided by multiplying the reproduced synchronizing signal is counted, and a circuit for producing an analog electrical signal corresponding to a time interval during from a time when a count value of the preset counter reaches its preset value to a reset time of the preset counter, wherein the motor is so controlled by the analog electrical signal that the moving speed of the recording medium relative to a pickup is made constant.
438765
Gowling Lafleur Henderson Llp
Sony Corporation
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