Patents by Inventor P. Glenn Gulak

P. Glenn Gulak 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).

  • Nonvolatile content addressable memory
    Patent number: 5930161
    Abstract: Binary and multiple-valued nonvolatile content addressable memories (NVCAMs) use ferroelectric capacitors as nonvolatile storage elements. The operation of the NVCAMs is accessed either in serial or in parallel. In a 2-bit NVCAM of a parallel access structure, search operation is performed by a simultaneous access to a 4-level polarization of the ferroelectric capacitor. The total number of search operations is reduced.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: July 27, 1999
    Assignee: Northern Telecom Limited
    Inventors: Ali Sheikholeslami, P. Glenn Gulak, Takahiro Hanyu
  • Nonvolatile content addressable memory
    Patent number: 5808929
    Abstract: Binary and multiple-valued nonvolatile content addressable memories (NVCAMs) use ferroelectric capacitors as nonvolatile storage elements. The operation of the NVCAMs is accessed either in serial or in parallel. In a 2-bit NVCAM of a parallel access structure, search operation is performed by a simultaneous access a 4-level polarization of the ferroelectric capacitor. The total number of search operations is reduced.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: September 15, 1998
    Inventors: Ali Sheikholeslami, P. Glenn Gulak, Takahiro Hanyu