Operating optical disk drives including calibratin

专利名称：Operating optical disk drives including

calibrating a tracking error signal

发明人：Alan A. Fennema申请号：US07/5710申请日：19900928公开号：US052206A公开日：19930615

摘要：An optical disk recorder has a fine actuator which holds an objective lens andwhich is movably mounted on a head carriage. Servo systems connected to the headcarriage and the fine actuator cause the fine actuator to seek and track follow basedupon signal recovered from a disk while the head carriage is caused to follow themotions of the fine actuator. A tracking error signal is generated indicating therelationship of the beam supplied through the objective lens with respect to tracks onthe record medium. An RPE signal (relative position error) is generated by an RPE

detector which indicates the relationship of the relative motion of the fine actuator to thehead carriage. Both the RPE and TES are calibrated as to offset and as to gain forproviding a more precise servo positioning system.

申请人：INTERNATIONAL BUSINESS MACHINES CORPORATION

代理人：H. F. Somermeyer

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