Patents by Inventor Mituo Konno

Mituo Konno 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: 5343238
    Abstract: A wide-screen television receiver capable of converting a TV signal of a non-aspect ratio into a signal of a wide aspect ratio which can be displayed on a wide screen of the wide aspect ratio and previously visually informing the user of what part of the image of the non-aspect ratio TV signal is converted in its aspect ratio and displayed on the wide screen. The receiver includes the interpolation scan speed conversion circuit, the mode setting circuit, the aspect ratio converting circuit, the wide cursor adding circuit and the wide display. The interpolation scan speed conversion circuit makes a series of processes such as Y/C separation and scan line interpolation for the input video signal supplied via the input terminal. The aspect ratio converting circuit compresses the video signal from the interpolation scan speed conversion circuit in the horizontal direction by use of a memory. The magnification processing circuit is provided after the aspect ratio converting circuit.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: August 30, 1994
    Assignees: Hitachi, Ltd., Hitachi Video Information System, Inc.
    Inventors: Haruki Takata, Kenji Katsumata, Shigeru Hirahata, Mituo Konno, Kouichi Ishibashi, Sunao Suzuki
  • Patent number: 5276515
    Abstract: A video signal processing circuit is provided to display an image of a standard television signal on a display unit with a 6:9 aspect ratio by enlarging an image of a video signal in the horizontal and vertical directions by a magnification factor which depends on the feature of the standard television signal. The processing circuit includes a first memory circuit which reads out the stored video signal in response to a read clock different from the write clock and generated by a stable frequency source so that the image of the video signal is expanded in the vertical direction, a second memory circuit which implements time-base compression for the output of the first memory circuit and thereafter expands the signal, a spatial filter which implements filtering for the output of the second memory circuit, an enlargement control circuit which control the above-mentioned circuits, and a synchronizing processing circuit.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: January 4, 1994
    Assignees: Hitachi, Ltd., Hitachi Video & Information System, Inc.
    Inventors: Kenji Katsumata, Shigeru Hirahata, Haruki Takata, Mituo Konno, Kouichi Ishibashi, Kazuhiro Kaizaki, Takaaki Matono, Atushi Haratani