Patents by Inventor Jeffrey A. Lohman

Jeffrey A. Lohman 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).

  • Scalar/vector processor
    Patent number: 5430884
    Abstract: The present invention is an improved high performance scalar/vector processor. In the preferred embodiment, the scalar/vector processor is used in a multiprocessor system. The scalar/vector processor is comprised of a scalar processor for operating on scalar and logical instructions, including a plurality of independent functional units operably connected to the scalar processor, a vector processor for operating on vector instructions, including a plurality of independent functional units operably connected to the vector processor, and an instruction control mechanism for fetching both the scalar and vector instructions from an instruction cache and controlling the operation of those instructions in both the scalar and vector processor. The instruction control mechanism is designed to enhance the performance of the scalar/vector processor by keeping a multiplicity of pipelines substantially filled with a minimum number of gaps.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: July 4, 1995
    Assignee: Cray Research, Inc.
    Inventors: Douglas R. Beard, Andrew E. Phelps, Michael A. Woodmansee, Richard G. Blewett, Jeffrey A. Lohman, Alexander A. Silbey, George A. Spix, Frederick J. Simmons, Don A. Van Dyke