197897 ⎘
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor; Disposition or mounting of heads relative to record carriers with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following; Fluid-dynamic spacing of heads from record-carriers; Specially adapted for spacing from a rotating disc using a fluid cushion; Control of flying height using inductive measurement
Optimized dual thermal fly-height design for dual writers for advanced magnetic recording
#2Magnetic head control capable of avoidance media bumps during seeking process
#3Integrating control of slider bias potential, touch-down detection and fly-height determination in a HDD
#4Fly height detection during write operation
#5Data storage device employing low duty cycle square wave to detect head touchdown