Patents by Inventor Shigehiro Tamaki

Shigehiro Tamaki 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).

  • Image reproduction apparatus performing interfield or interframe interpolation
    Patent number: 5583575
    Abstract: An image reproduction apparatus which converts a sampling frequency from a first frequency to a second frequency, performs interfield interpolation at a third frequency, and converts the sampling frequency from the third frequency to the first frequency, wherein the interfield-interpolation is performed at the first frequency between signals one field apart from each other. The apparatus also converts a number of vertical scanning lines to convert a high definition TV signal of the MUSE format to a signal of NTSC format, sets a scanning period used in the vertical scanning line conversion, and generates a coefficient used in the vertical scanning line conversion.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: December 10, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Eiji Arita, Hiroyuki Nakayama, Yoshiki Mizutani, Masahiko Nakamura, Tomohiro Ushio, Shigehiro Tamaki, Toshiya Adachi