Patents Assigned to Maruwa Electronic & Chemical Company
  • Patent number: 4974088
    Abstract: A remote control apparatus for a rotating camera base that supports a television camera such that it is rotatable in the horizontal and vertical directions. The remote control apparatus comprises a first controlling circuit that outputs a digital signal for driving and controlling the rotating camera base; a control box including a modulating circuit that outputs a modulated version of the digital signal from the first controlling circuit with a prescribed carrier wave, said control box being electrically connected to the first controlling circuit; a demodulating circuit that recovers the digital signal from the modulated wave from the modulating circuit, said demodulating circuit being provided in the rotating camera base and electrically connected to the modulating circuit; and a second controlling circuit that drives and controls the rotating camera base based on the digital signal from the demodulating circuit, said second controlling circuit being electrically connected to the demodulating circuit.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: November 27, 1990
    Assignee: Maruwa Electronic & Chemical Company
    Inventor: Takeshi Sasaki