Patents by Inventor Xu Dan

Xu Dan 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).

  • Mobile communication device and mobile communication system
    Patent number: 8422441
    Abstract: A base station includes a unit that, in response to a request from a terminal to activate an application, calculates the data communication speed based on a communication quality index received from the terminal; a unit that performs the statistical calculation of traffic sent to terminals; a unit that calculates the statistical value of the number of free resource blocks; a unit that calculates the estimated continuation time of the data communication speed, calculated by the data communication speed calculation unit, from the statistical value of free resource blocks calculated by the free resource blocks conversion unit; and a unit that sends the data communication speed and the continuation time to the terminal, and each terminal displays the data communication speed and the continuation time, sent from the mobile communication device, on a display unit and, based on the selection result of a user, controls the connection of the application.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: April 16, 2013
    Assignee: Hitachi, Ltd.
    Inventor: Xu Dan
  • MOBILE COMMUNICATION DEVICE AND MOBILE COMMUNICATION SYSTEM
    Publication number: 20100246507
    Abstract: A base station includes a unit that, in response to a request from a terminal to activate an application, calculates the data communication speed based on a communication quality index received from the terminal; a unit that performs the statistical calculation of traffic sent to terminals; a unit that calculates the statistical value of the number of free resource blocks; a unit that calculates the estimated continuation time of the data communication speed, calculated by the data communication speed calculation unit, from the statistical value of free resource blocks calculated by the free resource blocks conversion unit; and a unit that sends the data communication speed and the continuation time to the terminal, and each terminal displays the data communication speed and the continuation time, sent from the mobile communication device, on a display unit and, based on the selection result of a user, controls the connection of the application.
    Type: Application
    Filed: December 8, 2009
    Publication date: September 30, 2010
    Inventor: Xu Dan