Patents by Inventor Seiji Iwafune

Seiji Iwafune 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).

  • Television system for providing interactive television programs and server system for constructing the television system
    Patent number: 5880720
    Abstract: A television system in which two-way television sets communicate with a server via a communication network. Each interactive television includes a program control unit for controlling interactive data exchange between a viewer, a response receiving unit for identifying a response from the viewer to the program from input signals to the television, and a communication control unit for controlling communications with other nodes. The server includes a communication control unit for controlling communications with other nodes, a program information DB storing procedures in units of programs, a response processing function for arranging response data in units of programs.
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: March 9, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Seiji Iwafune, Masahito Takeda, Toshiyuki Takada, Isamu Miura