Programmable output impedance for hard drive preamplifier...

Programmable overshoot for a servo writer

Programmable pre-amplifier using a serial shift register to outp

Programmable preamplifier unit with serial interface for disk da

Programmable write current waveform for high frequency...

Programmable write driver circuit for writing information to...

Protective circuit for a magnetoresistive element

Pseudo differential voltage sense MR preamplifier with improved

Push-pull amplifier and method for operation, particularly recor

Read head protection circuit and method

Read/write data interface and method of operation

Reading secure magnetic documents

Record amplifying circuit for respectively serially and differen

Record/reproduction controlling signal generator with an error p

Recorded data reproducing apparatus capable of performing auto-g

Recording apparatus provided with a write driver circuit

Recording apparatus with a control for selecting a gain adjustme

Recording channel with signal controlled integrated analog circu

Recording current control method and magnetic disk drive

Recording or reproducing apparatus