Patents by Inventor Kohei Natsume

Kohei Natsume 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).

  • Terminal device, and in-zone cell checking method and cell re-selection method thereof
    Patent number: 8027685
    Abstract: A terminal device including a radio unit that adopts code division multiple access (cdma), which device omits unnecessary cell search by extending an in-zone cell monitoring cycle and a re-selection cycle in a case where under fixed conditions during cell search, when a physical layer and an RRC of the radio unit determine that a mobile phone remains still.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: September 27, 2011
    Assignee: NEC Corporation
    Inventor: Kohei Natsume
  • Terminal device, and in-zone cell checking method and cell re-selection method thereof
    Patent number: 7831254
    Abstract: A terminal device including a radio unit that adopts code division multiple access (cdma), which device omits unnecessary cell search by extending an in-zone cell monitoring cycle and a re-selection cycle in a case where under fixed conditions during cell search, when a physical layer and an RRC of the radio unit determine that a mobile phone remains still.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: November 9, 2010
    Assignee: NEC Corporation
    Inventor: Kohei Natsume
  • Terminal Device, and In-zone Cell Checking Method and Cell Re-selection Method Thereof
    Publication number: 20090005027
    Abstract: A terminal device including a radio unit that adopts code division multiple access (cdma), which device omits unnecessary cell search by extending an in-zone cell monitoring cycle and a re-selection cycle in a case where under fixed conditions during cell search, when a physical layer and an RRC of the radio unit determine that a mobile phone remains still.
    Type: Application
    Filed: August 29, 2008
    Publication date: January 1, 2009
    Inventor: Kohei NATSUME
  • Terminal device, and in-zone cell checking method and cell re-selection method thereof
    Publication number: 20050221830
    Abstract: A terminal device including a radio unit that adopts code division multiple access (cdma), which device omits unnecessary cell search by extending an in-zone cell monitoring cycle and a re-selection cycle in a case where under fixed conditions during cell search, when a physical layer and an RRC of the radio unit determine that a mobile phone remains still.
    Type: Application
    Filed: March 30, 2005
    Publication date: October 6, 2005
    Inventor: Kohei Natsume