Patents by Inventor Ahsan Bootehsaz

Ahsan Bootehsaz 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: 5880971
    Abstract: A methodology for generating structural descriptions of complex digital devices from high-level descriptions and specifications is disclosed. The methodology uses a systematic technique to map and enforce consistency of the semantics imbedded in the intent of the original, high-level descriptions. The design activity is essentially a series of transformations operating upon various levels of design representations. At each level, the intended meaning (semantics) and formal software manipulations are captured to derive a more detailed level describing hardware meeting the design goals. Important features of the methodology are: capturing the users concepts, intent, specification, descriptions, constraints and trade-offs; architectural partitioning; what-if analysis at a high level; sizing estimation; timing estimation; architectural trade-off; conceptual design with implementation estimation; and timing closure.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: March 9, 1999
    Assignee: LSI Logic Corporation
    Inventors: Carlos Dangelo, Vijay Kumar Nagasamy, Ahsan Bootehsaz, Sreeranga Prasannakumar Rajan
  • Patent number: 5650938
    Abstract: A method and apparatus for verifying an integrated circuit design composed of both synchronous and asynchronous regions. The computer implemented system imports a design combining synchronous and asynchronous regions and utilizes a static timing analyzer to automatically determine the boundaries of the asynchronous regions including input and output probe points at the inputs and outputs of the asynchronous regions. The static timing analyzer also generates a netlist of the asynchronous regions as well as certain information indicative of the signal arrival times of data sensed over the input probe points of the asynchronous regions. A functional simulator then uses test vectors generated for the primary inputs of the integrated circuit design and automatically determines a set of test vectors specifically for the asynchronous portion by monitoring the input probe points. This can be done for each asynchronous region.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: July 22, 1997
    Assignee: Synopsys, Inc.
    Inventors: Ahsan Bootehsaz, Pierrick Pedron, Franklin J. Malloy, Oz Levia
  • Patent number: 5526277
    Abstract: A methodology for generating structural descriptions of complex digital devices from high-level descriptions and specifications is disclosed. The methodology uses a systematic technique to map and enforce consistency of the semantics imbedded in the intent of the original, high-level descriptions. The design activity is essentially a series of transformations operating upon various levels of design representations. At each level, the intended meaning (semantics) and formal software manipulations are captured to derive a more detailed level describing hardware meeting the design goals. Important features of the methodology are: capturing the users concepts, intent, specification, descriptions, constraints and trade-offs; architectural partitioning; what-if analysis at a high level; sizing estimation; timing estimation; architectural trade-off; conceptual design with implementation estimation; and timing closure.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: June 11, 1996
    Assignee: LSI Logic Corporation
    Inventors: Carlos Dangelo, Vijay K. Nagasamy, Ahsan Bootehsaz, Sreeranga P. Rajan
  • Patent number: 5222030
    Abstract: A methodology for generating structural descriptions of complex digital devices from high-level descriptions and specifications is disclosed. The methodology uses a systematic technique to map and enforce consistency of the semantics imbedded in the intent of the original, high-level descriptions. The design activity is essentially a series of transformations operating upon various levels of design representations. At each level, the intended meaning (semantics) and formal software manipulations are captured to derive a more detailed level describing hardware meeting the design goals. Important features of the methodology are: capturing the users concepts, intent, specification, descriptions, constraints and trade-offs; architectural partitioning; what-if analysis at a high level; sizing estimation; timing estimation; architectural trade-off; conceptual design with implementation estimation; and timing closure.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: June 22, 1993
    Assignee: LSI Logic Corporation
    Inventors: Carlos Dangelo, Vijay K. Nagasamy, Ahsan Bootehsaz, Sreeranga P. Rajan