US PATENT SUBCLASS 318 / 671
.~ With particular motor control system responsive to the "actuating signal"


Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

560  DF  POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) {23}
671.~ With particular motor control system responsive to the "actuating signal" {10}
672  DF  .~.~> Discontinuous or "on-off" control {2}
675  DF  .~.~> One transmitter or controller element follows another
676  DF  .~.~> Transmitter or controller element returned (e.g., force balance systems)
677  DF  .~.~> With particular servoamplifier {5}
683  DF  .~.~> With particular phase discriminator
684  DF  .~.~> With particular modulator or detector (e.g., choppers)
685  DF  .~.~> "Step-by-step" motors in closed-loop servos
686  DF  .~.~> Reciprocating or oscillating motors
687  DF  .~.~> Linear movement motors
688  DF  .~.~> Shaded pole motors


DEFINITION

Classification: 318/671

(under subclass 560) Subject matter in which the servo system includes a particular motor control responsive to the actuating signal.