Patents by Inventor Tomohisa Otsuka

Tomohisa Otsuka 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).

  • Signal sequence allocating device and signal sequence allocating method
    Patent number: 8923230
    Abstract: To efficiently and appropriately allocate signal sequences, a signal sequence allocation device includes a cell radius calculation module that calculates an area radius of an area in communication areas to which a signal sequence is to be allocated, a signal number calculation module that calculates the number of signals in a signal sequence to be allocated to a communication area based on the area radius, and a signal sequence allocation module that allocates a signal sequence to a communication area based on the number of signals.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: December 30, 2014
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yuuya Yamaguchi, Tomohisa Otsuka, Hiroo Omori
  • SIGNAL SEQUENCE ALLOCATING DEVICE AND SIGNAL SEQUENCE ALLOCATING METHOD
    Publication number: 20130028208
    Abstract: To efficiently and appropriately allocate signal sequences, a signal sequence allocation device includes a cell radius calculation module that calculates an area radius of an area in communication areas to which a signal sequence is to be allocated, a signal number calculation module that calculates the number of signals in a signal sequence to be allocated to a communication area based on the area radius, and a signal sequence allocation module that allocates a signal sequence to a communication area based on the number of signals.
    Type: Application
    Filed: January 24, 2011
    Publication date: January 31, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuuya Yamaguchi, Tomohisa Otsuka, Hiroo Omori
  • IDENTIFICATION INFORMATION ALLOCATION DEVICE AND IDENTIFICATION INFORMATION ALLOCATION METHOD
    Publication number: 20130012214
    Abstract: An identification information allocation device allocates an ID of a communication area of a base station efficiently and appropriately. The identification information allocation device includes a group generation module that groups the communication areas of the base station, a group ID allocation module that allocates a group ID to grouped groups, and an ID allocation module that allocates the ID to the communication area of the base station on the basis of the group ID.
    Type: Application
    Filed: January 19, 2011
    Publication date: January 10, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Yoshiyasu Shinke, Yuuya Yamaguchi, Hiroo Omori, Tomohisa Otsuka