Patents by Inventor John P. Chalmers

John P. Chalmers 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: 7738376
    Abstract: A flow control method and system including an algorithm for deciding to transmit an arriving packet into a processing queue or to discard it, or, in the case of instructions or packets that must not be discarded, a similar method and system for deciding at a service event to transmit an instruction or packet into a processing queue or to skip the service event. The transmit probability is increased or decreased in consideration of minimum and maximum limits for each flow, aggregate limits for sets of flows, relative priority among flows, queue occupancy, and rate of change of queue occupancy. The effects include protection of flows below their minimum rates, correction of flows above their maximum rates, and, for flows between minimum and maximum rates, reduction of constituent flows of an aggregate that is above its aggregate maximum. Practice of the invention results in low queue occupancy during steady congestion.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: June 15, 2010
    Assignee: International Business Machines Corporation
    Inventors: Garesh Balakrishnan, John P. Chalmers, Clark D. Jeffries, Jitesh R. Nair, Larry W. Nicholson, Ravinder K. Sabhikhi, Raj K. Singh
  • Patent number: 7274666
    Abstract: A flow control method and system including an algorithm for deciding to transmit an arriving packet into a processing queue or to discard it, or, in the case of instructions or packets that must not be discarded, a similar method and system for deciding at a service event to transmit an instruction or packet into a processing queue or to skip the service event. The transmit probability is increased or decreased in consideration of minimum and maximum limits for each flow, aggregate limits for sets of flows, relative priority among flows, queue occupancy, and rate of change of queue occupancy. The effects include protection of flows below their minimum rates, correction of flows above their maximum rates, and, for flows between minimum and maximum rates, reduction of constituent flows of an aggregate that is above its aggregate maximum. Practice of the invention results in low queue occupancy during steady congestion.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: September 25, 2007
    Assignee: International Business Machines Corporation
    Inventors: Ganesh Balakrishnan, John P. Chalmers, Clark D. Jeffries, Jitesh R. Nair, Larry W. Nicholson, Ravinder K. Sabhikhi, Raj K. Singh
  • Publication number: 20040196790
    Abstract: A flow control method and system including an algorithm for deciding to transmit an arriving packet into a processing queue or to discard it, or, in the case of instructions or packets that must not be discarded, a similar method and system for deciding at a service event to transmit an instruction or packet into a processing queue or to skip the service event. The transmit probability is increased or decreased in consideration of minimum and maximum limits for each flow, aggregate limits for sets of flows, relative priority among flows, queue occupancy, and rate of change of queue occupancy. The effects include protection of flows below their minimum rates, correction of flows above their maximum rates, and, for flows between minimum and maximum rates, reduction of constituent flows of an aggregate that is above its aggregate maximum. Practice of the invention results in low queue occupancy during steady congestion.
    Type: Application
    Filed: April 1, 2003
    Publication date: October 7, 2004
    Applicant: International Business Machines Corporation
    Inventors: Ganesh Balakrishnan, John P. Chalmers, Clark D. Jeffries, Jitesh R. Nair, Larry W. Nicholson, Ravinder K. Sabhikhi, Raj K. Singh