Patent ID: 6525897
Filing Date: 2003-02-25
Classification: B82Y,G11B

Abstract:
A data acquisition and recording system comprising:a first transducer for detecting signals from a first storage medium embodying data to be acquired, the first transducer defining a first tracking relationship with respect to the first storage medium; a second transducer for recording signals to a second storage medium, the second transducer defining a second tracking relationship with respect to the second storage medium, the first and second transducers having a fixed spatial relationship with respect to each other; data recovery circuitry coupled to receive signals detected by the first transducer, the data recovery circuitry deriving recovered data from the detected signals, the data recovery circuitry deriving a measure of errors of the detected signals in relation to the recovered data in a substantially continuous manner, the measure being responsive to an accuracy of the first tracking relationship; and a servo controller coupled to the data recovery circuitry to receive the measure and generate a position error signal in response to the measure as the data recovery circuitry derives data from the detected signals, the position error signal being indicative of corrections determined for the first and second tracking relationships.