DIGITAL RECORDING SYSTEM

摘要

A digital recording system (50) utilizing a magnetoresistive transducer (54) in a magnetic recording head. The system measures the amplitude of an output signal (22), Eo from the transducer for various bias currents as a recorded magnetic media (52) passes by the head. The system then determines the bias current for which the output signal, Eo, is maximized and multipies that bias current by a suitable factor. The system then operates at the calculated bias current level, thereby minimizing the error rate (12) of the system.