Data recording and reproducing apparatus
Data recording device
Device for controlling the rotation of the head drum
Digital data recording device having a rotary cylinder
Digital magnetic reproducing apparatus with variable tape speed
Digital phase servo system
Digital signal reproducing apparatus
Digital video signal recording/reproducing apparatus
Disk drive system with adjustable spindle and actuator power to
Disk drive with closed loop commutator and actuator oscillator
Drum motor controller using microcomputer for intermittent...
Drum servo circuit
Drum servo control with reduced head phase error during editing
Drum servo system using a PLL with frequency divided reference c
Dual servo system for rotating tape head control