Radio-linked, bi-directional control system for model...
Raindrop detection wiper
Regenerative braking system for three-terminal d.c. motor
Regenerative motor control having field and armature coordinatin
Repositioning system
Reversible automatic fan control system
Reversible electric drive with bidirectional back-current brake
Reversing control for DC. motors of the permanent magnet field t
Roll film drive control arrangement
Rotary die cutting apparatus and method with disconnect
Rotary machine control
Rotatable warning light assembly
Rotation stopping apparatus for a motor
Rotational speed control and use of same to control the rotation
Rotor position detection circuit and motor driving device
Rotor speed control device and method