Patents by Inventor Ayano Doi

Ayano Doi 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).

  • Communication controller, base station controller and communication system
    Patent number: 6799036
    Abstract: There are provided a communication controller, a base station controller and a communication system that employs a connection control of roaming applied to WLL and efficiently makes a connection and continuously provides communication service even when a subscriber changes the area. An identification number management unit manages a home area identification number assigned to the subscriber terminal in the home area and a roaming area identification number assigned thereto in the roaming area. A call connection processing unit translates the home area identification number and the roaming area identification number into each other for call connection processing.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: September 28, 2004
    Assignee: Fujitsu Limited
    Inventors: Ayano Doi, Tsudoi Kubo
  • Communication controller, base station controller and communication system
    Publication number: 20020128042
    Abstract: There are provided a communication controller, a base station controller and a communication system that employs a connection control of roaming applied to WLL and efficiently makes a connection and continuously provides communication service even when a subscriber changes the area. An identification number management unit manages a home area identification number assigned to the subscriber terminal in the home area and a roaming area identification number assigned thereto in the roaming area. A call connection processing unit translates the home area identification number and the roaming area identification number into each other for call connection processing.
    Type: Application
    Filed: April 24, 2002
    Publication date: September 12, 2002
    Inventors: Ayano Doi, Tsudoi Kubo