Patents by Inventor Fujio Tagami

Fujio Tagami 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).

  • Digital control bus system
    Patent number: 4843289
    Abstract: Digitally controllable ICs or function blocks in an electronic apparatus are connected through control bus lines, and a switch device is provided for disconnecting one of the digitally controllable ICs or function blocks from the control bus so that the control bus is not disabled when that one IC is turned off or is not occupied when the IC is operating in its internal processing mode. Therefore, communication between the remaining ICs can be maintained through the control bus.
    Type: Grant
    Filed: February 23, 1988
    Date of Patent: June 27, 1989
    Assignee: Sony Corp.
    Inventors: Takao Mogi, Keiji Yuzawa, Yoshinori Komiya, Masayuki Suematsu, Fujio Tagami