Patents by Inventor John Brennen

John Brennen 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).

  • Publication number: 20170046274
    Abstract: Systems and methods pertain to a method of memory management. Gaps are unused portions of a physical memory in sections of the physical memory mapped to virtual addresses by entries of a translation look-aside buffer (TLB). Sizes and alignment of the sections in the physical memory may be based on the number of entries in the TLB, which leads to the gaps. One or more gaps identified in the physical memory are reclaimed or reused, where the one or more gaps are collected to form a dynamic buffer, by mapping physical addresses of the gaps to virtual addresses of the dynamic buffer.
    Type: Application
    Filed: August 14, 2015
    Publication date: February 16, 2017
    Inventors: Andres Alejandro OPORTUS VALENZUELA, Gurvinder Singh CHHABRA, Nieyan GENG, John BRENNEN, BalaSubrahmanyam CHINTAMNEEDI
  • Patent number: 5740402
    Abstract: A conflict resolution system for interleaved memories in processors capable of issuing multiple independent memory operations per cycle. The conflict resolution system includes an address bellow for temporarily storing memory requests, and cross-connect switches to variously route multiple parallel memory requests to multiple memory banks. A control logic block controls the address bellow and the cross-connect switches to reorder the sequence of memory requests to avoid conflicts. The reordering removes conflicts and increases the occurrence of alternating memory requests that can issue simultaneously.
    Type: Grant
    Filed: June 13, 1995
    Date of Patent: April 14, 1998
    Assignee: Silicon Graphics, Inc.
    Inventors: Joseph P. Bratt, John Brennen, Peter Y. Hsu, Joseph T. Scanlon, Man Kit Tang, Steven J. Ciavaglia