Patents by Inventor Rie NAGATSU

Rie NAGATSU 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 monitoring system, communication monitoring method, and communication monitoring device
    Patent number: 9532250
    Abstract: A communication monitoring system including: a first base station device having a first service area, a second base station device having a second service area being included in the first service area and smaller than the first service area, a terminal device configured to perform a first radio communication with the first base station device when the terminal device is located in the first service area, and a second radio communication with the second base station device when the terminal device is located in the second service area, and a monitoring device configured to: receive first observation data acquired from the first radio communication, receive second observation data acquired from the second radio communication, and estimate a cause for the first observation data and the second observation data being obtained, based on the first observation data and the second observation data.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: December 27, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Yukiko Yokosawa, Rie Nagatsu, Norio Murakami
  • COMMUNICATION MONITORING SYSTEM, COMMUNICATION MONITORING METHOD, AND COMMUNICATION MONITORING DEVICE
    Publication number: 20160255524
    Abstract: A communication monitoring system including: a first base station device having a first service area, a second base station device having a second service area being included in the first service area and smaller than the first service area, a terminal device configured to perform a first radio communication with the first base station device when the terminal device is located in the first service area, and a second radio communication with the second base station device when the terminal device is located in the second service area, and a monitoring device configured to: receive first observation data acquired from the first radio communication, receive second observation data acquired from the second radio communication, and estimate a cause for the first observation data and the second observation data being obtained, based on the first observation data and the second observation data.
    Type: Application
    Filed: February 26, 2016
    Publication date: September 1, 2016
    Inventors: Yukiko YOKOSAWA, Rie NAGATSU, Norio MURAKAMI