Patents by Inventor Eric Wendell Weaver Johnson

Eric Wendell Weaver Johnson 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).

  • Centrally handling runtime errors
    Patent number: 6173421
    Abstract: Centrally handling a runtime error or exception of a program using a central object stack and exception handling code centrally maintained within a global object manager. The global object manager is a data structure separate from the program's call stack. When a modified TRY statement is executed, a location is marked on the central object stack. During execution of a section of code after the modified TRY statement, if a new object is needed, the global object manager efficiently allocates the new object. The global object manager either allocates the new object directly from memory or attempts to re-use a previously allocated object in a cache of available objects as the new object. The new object is then registered on the central object stack and a pointer to the new object is registered on the program's call stack. This keeps the new object and associated exception handling code off the program's call stack.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: January 9, 2001
    Assignee: Microsoft Corporation
    Inventors: Eric Wendell Weaver Johnson, Neelamadhaba Mahapatro
  • System and method for centrally handling runtime errors
    Patent number: 5948113
    Abstract: Centrally handling a runtime error or exception of a program using a central object stack and exception handling code centrally maintained within a global object manager. The global object manager is a data structure separate from the program's call stack. When a modified TRY statement is executed, a location is marked on the central object stack. During execution of a section of code after the modified TRY statement, if a new object is needed, the global object manager efficiently allocates the new object. The global object manager either allocates the new object directly from memory or attempts to re-use a previously allocated object in a cache of available objects as the new object. The new object is then registered on the central object stack and a pointer to the new object is registered on the program's call stack. This keeps the new object and associated exception handling code off the program's call stack.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: September 7, 1999
    Assignee: Microsoft Corporation
    Inventors: Eric Wendell Weaver Johnson, Neelamadhaba Mahapatro