Head selectable servo notch filter and method for improving serv

Inductive signal transducer supply circuit particularly for vide

Information playback method and apparatus

Information processing apparatus for processing reproduction sig

Information recording and reproducing apparatus and method,...

Information recording and reproducing apparatus and method...

Information signal recording apparatus and apparatus for reprodu

Low-noise preamplifier

Magnetic disc apparatus with a cosine equalizer and specific gap

Magnetic disk apparatus and read waveform equalizing method usin

Magnetic disk device and automatic adaptation method of its...

Magnetic disk device and automatic adaptation method of its...

Magnetic disk drive

Magnetic disk system and waveform equalizer therefor

Magnetic head compensator

Magnetic head driving circuit with memory circuit

Magnetic pickup preamplifier

Magnetic record reproducing system

Magnetic recording and reproducing apparatus automatically adjus

Magnetic recording and reproducing apparatus, reproduction signa