Patents by Inventor Yoshihisa Nishitani

Yoshihisa Nishitani 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
  • Patent number: 4562493
    Abstract: A magnetic video recording apparatus for intermittent recording comprises a magnetic tape driving circuit (30), a video signal recording circuit (20), a control circuit (40) and a recording start instructing circuit (60). The magnetic tape driving circuit (30) makes a magnetic tape (1) travel at a predetermined speed while it is enabled. The video signal recording circuit (20) records a video signal (VS) in the magnetic tape (1) in a predetermined format. The recording start instructing circuit (60) provides intermittently a recording start signal (RS). The control circuit (40) enables the magnetic tape driving circuit (30) in response to the recording start signal (RS), enables the video signal recording circuit (20) for a predetermined period of time and then disables the magnetic tape driving circuit (30). A tape pattern thus recorded in the magnetic tape (1) does not differ from that in an ordinary video tape recorder.
    Type: Grant
    Filed: December 30, 1983
    Date of Patent: December 31, 1985
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yoshihisa Nishitani, Masateru Nakano, Yoshihito Yamamoto
  • Patent number: 4074315
    Abstract: An apparatus for reproducing multiplex video data which records data for symbols multiplexed with the main video signals in a memory and continuously reads out the data from the memory and multiplexes it with a part of the main video signals for display, including circuitry for controlling the amplitude of the main video signals corresponding to the superposed picture background during the display time for the multiplexed data which are read out from the memory.
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: February 14, 1978
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hiroshi Kawamura, Yoshihisa Nishitani, Katsumi Muta