Patents by Inventor David C. Angel

David C. Angel 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).

  • IR code instrumentation
    Patent number: 6332213
    Abstract: Instrumenting a computer program includes examining an initial intermediate representation of the program, selecting portions of the initial intermediate representation for instrumentation, and instrumenting the portions. Selecting the portions may include choosing portions of the initial intermediate representation corresponding to pointer arithmetic operations, operations that reads memory locations, operations that change memory locations, and/or operations that causes program variables to become defined or undefined within the program. Instrumenting the portions may include adding run time code that provides a user with an indication when a run time error occurs.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: December 18, 2001
    Assignee: Compuware Corporation
    Inventors: Franklin C. Grossman, David C. Angel, David A. Seidel
  • IR code instrumentation
    Patent number: 5987249
    Abstract: Instrumenting a computer program includes examining an initial intermediate representation of the program, selecting portions of the initial intermediate representation for instrumentation, and instrumenting the portions. Selecting the portions may include choosing portions of the initial intermediate representation corresponding to pointer arithmetic operations, operations that reads memory locations, operations that change memory locations, and/or operations that causes program variables to become defined or undefined within the program. Instrumenting the portions may include adding run time code that provides a user with an indication when a run time error occurs.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: November 16, 1999
    Assignee: NuMega Technologies
    Inventors: Franklin C. Grossman, David C. Angel, David A. Seidel