Patents by Inventor Lawrence Chunkhang Loh

Lawrence Chunkhang Loh 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: 9633153
    Abstract: Various mechanisms and approaches identify multiple cells in an electronic design and multiple sets of stall prevention requirements or multiple sets of transactions for the multiple cells and determine dependencies between stall prevention requirements. A graph is constructed to represent the dependencies and the stall prevention requirements or the transactions involved in the dependencies by using the stall prevention requirements or the transactions as the nodes and the dependencies as the arcs connecting the nodes in the graph. One or more loop analyses are performed on the graph to identify one or more loops as one or more potential deadlocks. False deadlocks may be eliminated from further processing. The analyses and deadlock detection may be independently performed for each cell in sequence or in parallel to divide and conquer a complex electronic system design.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: April 25, 2017
    Assignee: Cadence Design Systems, Inc.
    Inventors: Sergey Khaikin, Lawrence Chunkhang Loh
  • Patent number: 9594861
    Abstract: An improved approach is provided to implement equivalency checking. A check is performed as to whether two designs are equivalent without needing to analyze their outputs on a cycle-by-cycle basis. Instead, the two designs are checked to see if they are equivalent on the transaction-level. This approach abstracts the timing delays between the two designs, which allows verification of data transportation and transformation between the designs.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: March 14, 2017
    Assignee: Cadence Design Systems, Inc.
    Inventors: Antonio Celso Caldeira, Jr., Lawrence Chunkhang Loh, Marcus Vinicius da Mata Gomes