Patents by Inventor Yukio Osafune

Yukio Osafune has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4607294
    Abstract: A magnetic video recording apparatus for intermittent recording comprises a capstan motor (2), a rotation detecting circuit (3), a control circuit (4) and a recording start instructing circuit (5). The control circuit (4) serves to apply driving voltage (V.sub.1 and V.sub.2) to the capstan motor (2) for a time interval corresponding to one frame, whereby a magnetic tape (1) is made to travel approximately for one frame. The travelling distance of the magnetic tape (1) is examined in the control circuit (4) by counting the number of pulse signals (PS) provided from the rotation detecting circuit (3). If the magnetic tape (1) is not made to travel exactly for one frame, the control circuit (4) applies driving voltage (V.sub.3 and V.sub.4) in the form of pulses to the capstan motor (2) till it travels exactly for one frame. Thus, the magnetic tape (1) is made to travel exactly for one frame.
    Type: Grant
    Filed: December 20, 1983
    Date of Patent: August 19, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yoshihisa Nishitani, Yukio Osafune