Patents by Inventor Thomas R. Kunjan

Thomas R. Kunjan 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).

  • Hierarchical memory arbitration technique for disparate sources
    Patent number: 8645639
    Abstract: A hierarchical memory request stream arbitration technique merges coherent memory request streams from multiple memory request sources and arbitrates the merged coherent memory request stream with requests from a non-coherent memory request stream. In at least one embodiment of the invention, a method of generating a merged memory request stream from a plurality of memory request streams includes merging coherent memory requests into a first serial memory request stream. The method includes selecting, by a memory controller circuit, a memory request for placement in the merged memory request stream from at least the first serial memory request stream and a merged non-coherent request stream. The merged non-coherent memory request stream is based on an indicator of a previous memory request selected for placement in the merged memory request stream.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: February 4, 2014
    Assignees: ATI Technologies ULC, Advanced Micro Devices, Inc.
    Inventors: Guhan Krishnan, Antonio Asaro, Don Cherepacha, Thomas R. Kunjan, Joerg Winkler, Ralf Flemming, Maurice B. Steinman, Jonathan Owen, John Kalamatianos
  • HIERARCHICAL MEMORY ARBITRATION TECHNIQUE FOR DISPARATE SOURCES
    Publication number: 20120331226
    Abstract: A hierarchical memory request stream arbitration technique merges coherent memory request streams from multiple memory request sources and arbitrates the merged coherent memory request stream with requests from a non-coherent memory request stream. In at least one embodiment of the invention, a method of generating a merged memory request stream from a plurality of memory request streams includes merging coherent memory requests into a first serial memory request stream. The method includes selecting, by a memory controller circuit, a memory request for placement in the merged memory request stream from at least the first serial memory request stream and a merged non-coherent request stream. The merged non-coherent memory request stream is based on an indicator of a previous memory request selected for placement in the merged memory request stream.
    Type: Application
    Filed: August 31, 2012
    Publication date: December 27, 2012
    Inventors: Guhan Krishnan, Antonio Asaro, Don Cherepacha, Thomas R. Kunjan, Joerg Winkler, Ralf Flemming, Maurice B. Steinman, Jonathan Owen, John Kalamatianos
  • Hierarchical memory arbitration technique for disparate sources
    Patent number: 8266389
    Abstract: A hierarchical memory request stream arbitration technique merges coherent memory request streams from multiple memory request sources and arbitrates the merged coherent memory request stream with requests from a non-coherent memory request stream. In at least one embodiment of the invention, a method of generating a merged memory request stream from a plurality of memory request streams includes merging coherent memory requests into a first serial memory request stream. The method includes selecting, by a memory controller circuit, a memory request for placement in the merged memory request stream from at least the first serial memory request stream and a merged non-coherent request stream. The merged non-coherent memory request stream is at least partially based on an indicator of a previous memory request selected for placement in the merged memory request stream.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: September 11, 2012
    Assignees: Advanced Micro Devices, Inc., ATI Technologies ULC
    Inventors: Guhan Krishnan, Antonio Asaro, Don Cherepacha, Thomas R. Kunjan, Joerg Winkler, Ralf Flemming, Maurice B. Steinman, Jonathan Owen, John Kalamatianos
  • HIERARCHICAL MEMORY ARBITRATION TECHNIQUE FOR DISPARATE SOURCES
    Publication number: 20100281231
    Abstract: A hierarchical memory request stream arbitration technique merges coherent memory request streams from multiple memory request sources and arbitrates the merged coherent memory request stream with requests from a non-coherent memory request stream. In at least one embodiment of the invention, a method of generating a merged memory request stream from a plurality of memory request streams includes merging coherent memory requests into a first serial memory request stream. The method includes selecting, by a memory controller circuit, a memory request for placement in the merged memory request stream from at least the first serial memory request stream and a merged non-coherent request stream. The merged non-coherent memory request stream is at least partially based on an indicator of a previous memory request selected for placement in the merged memory request stream.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Inventors: Guhan Krishnan, Antonio Asaro, Don Cherepacha, Thomas R. Kunjan, Joerg Winkler, Ralf Flemming, Maurice B. Steinman, Jonathan Owen, John Kalamatianos