Patents by Inventor Cary Y. Yoshikawa

Cary Y. Yoshikawa 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).

  • Patent number: 8010672
    Abstract: Methods and systems for controlling utilization of resources(s) of contention by a plurality of devices of a single or multiple priority classes. A utilization scaling factor is determined for each class for the resource(s) and compared with a threshold value. An apersistence property pattern is then created for each class that includes apersistence property entries corresponding to apersistence update cycles of an apersistence pattern window. Where the scaling factor is in a first range corresponding to low resource loading, the class pattern includes unimpeded entries allowing the devices in a class to attempt to utilize the resource. Otherwise, the class pattern is created with at least one blocking entry that prevents all devices in a class from attempting utilization of the resource during the corresponding apersistence update cycle. An apersistence property pattern entry is then provided from the pattern to the devices in each apersistence update cycle of the apersistence pattern window.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: August 30, 2011
    Assignee: Alcatel Lucent
    Inventor: Cary Y. Yoshikawa
  • Patent number: 8000341
    Abstract: Systems and methods are described for detecting collisions in packets related to attempted access or utilization of a resource or pool of resources in a given timeslot in which the energy level of corrupted received access probe packets are compared with a threshold energy level, and if above the threshold, the timeslot is marked as a collision slot.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: August 16, 2011
    Assignee: Alcatel Lucent
    Inventor: Cary Y. Yoshikawa
  • Patent number: 7626997
    Abstract: Systems and methods are described for estimating attempt rates for access/utilization of a resource(s) by a plurality of devices, in which rate analysis window timeslot data and a simulated attempt rate model are used to estimate the current attempt rate for the resource(s).
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: December 1, 2009
    Assignee: Alcatel-Lucent USA Inc.
    Inventor: Cary Y. Yoshikawa