Magnetic disk device and automatic adaptation method of its parameter

• Main Authors: Makiura, Tetsuya, Tsuchiya, Reijiro
• Format: Patent
• Language: English
• Published: 17.09.2002

The present invention is related to a magnetic disk device, especially, a recording technology which provides an automatic adaptation function of a parameter against a variation of the environment around the magnetic disk device, and which gives highly reliable magnetic recording. In a magnetic disk device, a deterioration of performance caused by an environmental variation is suppressed by utilizing an automatic adaptation function in a read/write channel IC. A gate provides a timing for the automatic adaptation of an equalization coefficient, a signal from the gate is given to a read-gate input terminal of the read/write channel IC, and the gate for the automatic adaptation is opened before reading data from a destination sector to be read. The automatic adaptation is started, whereby coefficients for equalization are adapted to signal wave forms before reading data.