Patent ID: 6424480
Filing Date: 2002-07-23
Classification: G11B

Abstract:
A magnetic information storage apparatus, comprising:a write channel for writing information to a magnetic medium; and a read channel for reading information from the magnetic medium, said read channel including: a sensor for generating an information signal in response to information stored on the magnetic medium; an output; and a signal path coupled between the sensor and the output which amplifies the information signal from the sensor and provides the amplified information signal to the output, wherein when transitioning from a write mode in which the write channel is active to a read mode in which the read channel is active, the transition inducing a write-to-read disturbance in the read channel, the signal path includes at least one control device which controls a zero of the signal path in a time-dependent manner, the control device being programmable to control the time dependent response of the zero.