Patents Represented by Attorney Dugan & Dugan, P.C.
  • Patent number: 7317683
    Abstract: A data communication apparatus includes a plurality of output ports and a scheduler for assigning priorities for outbound data frames. The scheduler includes one or more scheduling queues. Each scheduling queue indicates an order in which data flows are to be serviced. At least one scheduling queue has a respective plurality of output ports assigned to the scheduling queue. That is, the scheduling queue is shared by two or more output ports.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: January 8, 2008
    Assignee: International Business Machines Corporation
    Inventors: William John Goetzinger, Glen Howard Handlogten, James Francis Mikos, David Alan Norgaard
  • Patent number: 7310345
    Abstract: A scheduler for a network processor includes one or more scheduling queues. Each scheduling queue defines a respective sequence in which flows are to be serviced. A respective empty indicator is associated with each scheduling queue to indicate whether the respective scheduling queue is empty. By referring to the empty indicators, it is possible to avoid wasting operating cycles of the scheduler on searching scheduling queues that are empty.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: December 18, 2007
    Assignee: International Business Machines Corporation
    Inventors: William John Goetzinger, Glen Howard Handlogten, James Francis Mikos, David Alan Norgaard, Daniel James Sucher
  • Patent number: 7214349
    Abstract: An effluent gas stream treatment system for treatment of gaseous effluents such as waste gases from semiconductor manufacturing operations. The effluent gas stream treatment system comprises a pre-oxidation treatment unit, which may for example comprise a scrubber, an oxidation unit such an electrothermal oxidizer, and a post-oxidation treatment unit, such as a wet or dry scrubber. The effluent gas stream treatment system of the invention may utilize an integrated oxidizer, quench and wet scrubber assembly, for abatement of hazardous or otherwise undesired components from the effluent gas stream. Gas or liquid shrouding of gas streams in the treatment system may be provided by high efficiency inlet structures.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: May 8, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Mark Holst, Kent Carpenter, Scott Lane, Prakash V. Arya
  • Patent number: 6922076
    Abstract: In a first aspect, a first method is provided for providing multiple termination values using a plurality of binary termination signals. The first method includes the steps of (1) determining a characteristic impedance of a first port by generating a plurality of binary termination signals; and (2) modifying a characteristic impedance of a second port by manipulating one or more of the plurality of binary termination signals. Numerous other aspects are provided.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: July 26, 2005
    Assignee: International Business Machines Corporation
    Inventors: George M. Braceras, Reid C. Hutchins, Harold Pilo
  • Patent number: 6891419
    Abstract: In a first aspect, a cross-coupled inverter is provided that includes a first inverter circuit having a first NFET coupled to a first PFET and a second inverter circuit having a second NFET coupled to a second PFET. The second inverter circuit is cross-coupled with the first inverter circuit at a plurality of nodes. The body of at least one of the first NFET, the second NFET, the first PFET and the second PFET is coupled so as to form a feedback path that reduces discharging at one or more of the plurality of nodes in response to a soft error event at the cross-coupled inverter.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: May 10, 2005
    Assignee: International Business Machines Corporation
    Inventors: Paul D. Kartschoke, Stephen V. Kosonocky, Randy W. Mann, Norman J. Rohrer
  • Patent number: 6865501
    Abstract: In one aspect, an electronic device that has been partitioned into segments by using clock gating or signal gating is tested. One of the segments that is a source of a failure is identified. Diagnostic procedures are applied to the identified segment to determine a cause of the failure.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: March 8, 2005
    Assignee: International Business Machines Corporation
    Inventors: Leendert M. Huisman, William V. Huott, Franco Motika, Leah M. Pfeifer Pastel