Patents by Inventor Jim Tadashi Otsuka

Jim Tadashi 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).

  • Publication number: 20110142206
    Abstract: A method includes selecting a first set of digital subscriber lines (DSLs) supported by a digital subscriber line access multiplexor (DSLAM). The DSLs of the first set exhibit reduced performance based on historical performance data. The method includes sending a request to the DSLAM for a first performance parameter for each of the DSLs of the first set. The method includes receiving the first performance parameters. The method includes removing DSLs from the first set that have suitable performance based on the first performance parameters to create a second set of DSLs. The method includes selecting a line profile to apply to the second set of DSLs. The method also includes sending a second request to the DSLAM to apply the line profile to the DSLs of the second set and then to determine a second performance parameter for each of the DSLs of the second set.
    Type: Application
    Filed: February 25, 2011
    Publication date: June 16, 2011
    Applicant: AT&T INTELLECTUAL PROPERTY I,L.P.
    Inventors: Baofeng Frank Jiang, Xidong Wu, Jim Tadashi Otsuka, John Porter Van Slyke
  • Patent number: 7272209
    Abstract: The present application discloses an automated digital subscriber line performance control system comprising a computer system including a logic module to evaluate performance of a plurality of DSL lines and to automatically select a set of DSL lines from the plurality of DSL lines, a line profile database responsive to the computer system, the line profile database providing a plurality of line profiles in response to a request from the computer system, and a digital subscriber line access multiplexer coupled to the computer system. The digital subscriber line access multiplexer is configured to measure a performance parameter of a plurality of physical DSL lines and to change a profile for at least one of the plurality of DSL lines. The set of DSL lines has degraded performance characteristics based on historical performance data.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: September 18, 2007
    Assignee: SBC Knowledge Ventures, L.P.
    Inventors: Baofeng Frank Jiang, Xidong Wu, Jim Tadashi Otsuka, John Porter Van Slyke