Patents by Inventor Steven Gregor

Steven Gregor 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).

  • Patent number: 8990749
    Abstract: Testing of memories is done using an optimized memory built-in-self-test (MBIST) approach, including the generation of compact models for memory. Cost functions are constructed from estimated parameters affecting MBIST, and a user is able to assign relative weights to the parameters. Estimated parameters include MBIST area, wiring congestion, and timing overhead, as well as power consumption and timing. The cost functions are minimized using optimization techniques, resulting in an optimized grouping of memory devices and an optimized schedule for MBIST testing. The estimated parameters may be derived from a compact model constructed from data experimentally-derived from various memory devices. This approach allows a circuit designer to generate and revise groupings and schedules prior to running a full design flow, saving time and cost, while still achieving high-quality results.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: March 24, 2015
    Assignee: Cadence Design Systems, Inc.
    Inventors: Puneet Arora, Navneet Kaushik, Steven Gregor, Norman Card
  • Patent number: 8719761
    Abstract: Testing of memories is done using an optimized memory built-in-self-test (MBIST) approach, including the generation of compact models for memory. Cost functions are constructed from estimated parameters affecting MBIST, and a user is able to assign relative weights to the parameters. Estimated parameters include MBIST area, wiring congestion, and timing overhead, as well as power consumption and timing. The cost functions are minimized using optimization techniques, resulting in an optimized grouping of memory devices and an optimized schedule for MBIST testing. The estimated parameters may be derived from a compact model constructed from data experimentally-derived from various memory devices. This approach allows a circuit designer to generate and revise groupings and schedules prior to running a full design flow, saving time and cost, while still achieving high-quality results.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: May 6, 2014
    Assignee: Candence Design Systems, Inc.
    Inventors: Norman Card, Puneet Arora, Steven Gregor, Navneet Kaushik
  • Publication number: 20140089875
    Abstract: Testing of memories is done using an optimized memory built-in-self-test (MBIST) approach, including the generation of compact models for memory. Cost functions are constructed from estimated parameters affecting MBIST, and a user is able to assign relative weights to the parameters. Estimated parameters include MBIST area, wiring congestion, and timing overhead, as well as power consumption and timing. The cost functions are minimized using optimization techniques, resulting in an optimized grouping of memory devices and an optimized schedule for MBIST testing. The estimated parameters may be derived from a compact model constructed from data experimentally-derived from various memory devices. This approach allows a circuit designer to generate and revise groupings and schedules prior to running a full design flow, saving time and cost, while still achieving high-quality results.
    Type: Application
    Filed: September 24, 2012
    Publication date: March 27, 2014
    Applicant: Cadence Design Systems, Inc.
    Inventors: Puneet Arora, Navneet Kaushik, Steven Gregor, Norman Card
  • Publication number: 20140089874
    Abstract: Testing of memories is done using an optimized memory built-in-self-test (MBIST) approach, including the generation of compact models for memory. Cost functions are constructed from estimated parameters affecting MBIST, and a user is able to assign relative weights to the parameters. Estimated parameters include MBIST area, wiring congestion, and timing overhead, as well as power consumption and timing. The cost functions are minimized using optimization techniques, resulting in an optimized grouping of memory devices and an optimized schedule for MBIST testing. The estimated parameters may be derived from a compact model constructed from data experimentally-derived from various memory devices. This approach allows a circuit designer to generate and revise groupings and schedules prior to running a full design flow, saving time and cost, while still achieving high-quality results.
    Type: Application
    Filed: September 24, 2012
    Publication date: March 27, 2014
    Applicant: Cadence Design Systems, Inc.
    Inventors: Norman Card, Puneet Arora, Steven Gregor, Navneet Kaushik