| 摘要 |
PROBLEM TO BE SOLVED: To porovide a carriage servo controller which allows the execution of the carriage servo control complying with a design value, is capable of decreasing the man-hours for design by an improvement in the degree of freedom in design, is capable of easily executing the desired carriage servo control and is adaptable to diversified applications. SOLUTION: This carriage servo controller has a preamplifier which forms a tracking error signal when the radial movement of a pickup of at least either recording or reproducing information to or from the tracks on an optical disk by irradiating the tracks with a light beam is subjected to carriage servo control, a pulse forming section 27 which forms a pulse signal PS having a specified period corresponding to the moving accuracy of the pickup, a multiplier 28 which forms a carriage control signal CD to move the pickup 1 in accordance with the formed pulse signal PS and the tracking error signal and a driver section which moves the pickup by impressing the formed carriage control signal CD to a carriage motor.
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