Patents by Inventor Nobuhumi Nakagaki

Nobuhumi Nakagaki 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).

  • Signal converting method and circuit for television receiver
    Patent number: 4684985
    Abstract: A signal converting circuit is disclosed for converting a television signal for 2:1 interlaced scanning system to another television signal for 1:1 non-interlaced scanning system using line memories for storing image data of two adjacent scanning lines of a present field and field memories for storing image data of a last occurring field. An interpolation signal is produced by controlling a value of the televisions signal of the two adjacent scanning lines in response to the television signal of the two adjacent scanning lines in the present field and the television signal of a scanning line positioned between the two adjacent scanning lines in the last occurring field.
    Type: Grant
    Filed: July 2, 1985
    Date of Patent: August 4, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Nobuhumi Nakagaki, Toshinori Murata, Toshiyuki Kurita