Patents by Inventor Stefan Letz

Stefan Letz 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).

  • Publication number: 20090276610
    Abstract: A method of generating a test case from a given test case structure, the method including generating instructions for the given test case structure, propagating predefined results in a backwards manner, randomly generating remaining operands of the test case structure in a forwards manner, and calculating a result for the test case by determining missing input operands and storing these input operands in both the temporary register file and the initial register file, and calculating missing results and storing all results in the temporary register file.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 5, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stefan Letz, Juergan Vielfort, Kal Weber
  • Publication number: 20090063829
    Abstract: An improved method of verifying a processor design using a processor simulation model in a simulation environment is disclosed, wherein the processor simulation model comprises at least one execution unit for executing at least one instruction of a test file. The method comprises tracking each execution of each of the at least one instruction, monitoring relevant signals in each simulation cycle, maintaining information about the execution of the at least one instruction, wherein said maintained information comprises a determination of an execution length of a completely executed instruction, matching said maintained information about said completely executed instruction against a set of trap elements provided by the user through a trap file, and collecting the maintained information about the completely executed instruction in a monitor file in response to a match found between the maintained information and at least one of the trap elements.
    Type: Application
    Filed: July 30, 2008
    Publication date: March 5, 2009
    Applicant: International Business Machines Corporation
    Inventors: Stefan Letz, Kai Weber, Juergen Vielfort
  • Publication number: 20080270573
    Abstract: A method and systems for providing XML data is disclosed. In accordance with an embodiment of the invention, a second data processing system, which is connected to a first data processing system via a network, receives a first request over the network from the first data processing system. The first request comprises specifications for subsequent transfers of XML data from the second data processing system to the first data processing system. The specifications specify for which type of XML documents to be transferred in subsequent transfers to the first data processing system which excerpts of XML data shall be sent. An acknowledge message, sent to the first data processing system from the second data processing system, indicates the latter's ability to provide the excerpts of XML data for the types of XML documents in the subsequent data transfers.
    Type: Application
    Filed: April 25, 2008
    Publication date: October 30, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stefan Letz, Roland Seiffert