Patents Assigned to Kanematsu-Gosho, Ltd.
  • Patent number: 4618804
    Abstract: A remote control system for bidirectionally rotating an electric motor, such as for opening and closing a blind or the like, comprises a hand-held transmitter including a transmitting circuit capable of developing a forward rotation command signal and a reverse rotation command signal, and a transmitter responsive to each of the command signals for producing a corresponding, predetermined number of infrared pulses for a predetermined amount of time. A receiver and drive unit is operatively coupled with the motor and comprises a receiver responsive to the infrared pulses for developing a corresponding received command signal, a discriminator circuit for determining whether the received command signal corresponds to the command signal for normal rotation or reverse rotation and for producing a corresponding forward rotation or reverse rotation control signal, and a drive circuit responsive to the control signal for causing rotation of the electric motor in the corresponding direction.
    Type: Grant
    Filed: June 14, 1985
    Date of Patent: October 21, 1986
    Assignee: Kanematsu-Gosho, Ltd.
    Inventor: Masashi Iwasaki