Motor servo circuit
Motor servo circuit for a magnetic recording and reproducing app
Negative coefficient filter for use with AC motors
Non-linear proportional/integral feedback controller
Numerical control system
Numerical control system having a digitized phase loop
Phase detector control for a servo system
Phase-sensitive transducer apparatus
Phase-sensitive transducer apparatus with improved signal offset
Phase-sensitive transducer apparatus with signal offset means
PLL motor controller
Position control in a D.C. motor
Position control system
Position transducer arrangement
Pulse width modulation (PWM) rectifier with variable...
Return and position control for a DC servo system
Rotation position detecting device and motor device
Servo control apparatus and method for video cassette tape recor
Servo control system
Servo control system operable on digital basis