Patents by Inventor Tsuneaki Ishimura

Tsuneaki Ishimura 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).

  • Video switcher
    Patent number: 6978080
    Abstract: A video switching apparatus in which an operating mode (recording/reproduction) of a recording/reproducing apparatus is discriminated from a video output signal of the recording/reproducing apparatus by recording/reproduction detecting portion, thereby enabling an automatic switching of a setting mode of the video switching apparatus. It is possible to prevent recording failures which may be otherwise caused due to an inconsistency between the mode settings of the video switching apparatus and the recording/reproducing apparatus connected thereto.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: December 20, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tsuneaki Ishimura, Kazuo Nozaki
  • Video switching apparatus for switching between a plurality of channels
    Patent number: 6744475
    Abstract: To generate a multiple video signal generated by video recorder 2, a conforming or nonconforming ID signal superimposed on a video signal is detected by an ID detecting circuit 11. Operation of appending a conforming ID signal is switched by a selector 14 based on the output of a state determination circuit 12. A conforming ID signal ID-&bgr; generated by an ID generation circuit 13 is selected by the selector 14 in a mode for generating a video signal where a nonconforming ID signal is superimposed and only in case an ID signal is detected by the ID detecting circuit 11. The ID signal ID-&bgr; is used to perform switchover of a nonconforming multiple video signal via a play/recording control circuit 17 and output a video signal on a predetermined channel where the same ID signal is superimposed.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: June 1, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuo Nozaki, Tsuneaki Ishimura
  • Video switching apparatus
    Publication number: 20020005901
    Abstract: To generate a multiple video signal generated by video recorder 2, a conforming or nonconforming ID signal superimposed on a video signal is detected by an ID detecting circuit 11. Operation of appending a conforming ID signal is switched by a selector 14 based on the output of a state determination circuit 12. A conforming ID signal ID&bgr; generated by an ID generation circuit 13 is selected by the selector 14 in a mode for generating a video signal where a nonconforming ID signal is superimposed and only in case an ID signal is detected by the ID detecting circuit 11. The ID signal ID&bgr; is used to perform switchover of a nonconforming multiple video signal via a play/recording control circuit 17 and output a video signal on a predetermined channel where the same ID signal is superimposed.
    Type: Application
    Filed: July 11, 2001
    Publication date: January 17, 2002
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuo Nozaki, Tsuneaki Ishimura