Patents by Inventor Lawrence E. Kirk

Lawrence E. Kirk 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).

  • Transitioning between historical and real time data streams in the processing of data change messages
    Patent number: 7827299
    Abstract: Provided are techniques for data stream switching. While accepting data change messages from a historical data stream, in response to determining that the end of the historical data stream is approaching, consumption from a real time data stream is resumed. In accepting data change messages from one of a historical data stream and a real time data stream, a data change message identifier (DCMID) for a data change message is obtained. Then, it is determined whether the data change message is from the real time data stream. In response to determining that the data change message is from the real time data stream, the DCMID is processed against a historical data structure to determine whether the related data change message has been seen in the historical data stream. In response to determining that the data change message is from the historical data stream, the DCMID is processed against a real time data structure to determine whether the related data change message has been seen in the real time data stream.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: November 2, 2010
    Assignee: International Business Machines Corporation
    Inventors: Paul Michael Cadarette, Lawrence E. Kirk, Robert Daniel Love, Gregg Andrew Upton, Anil Venkatesh Varkhedi, Charles Joseph Weigel, III
  • TRANSITIONING BETWEEN HISTORICAL AND REAL TIME DATA STREAMS IN THE PROCESSING OF DATA CHANGE MESSAGES
    Publication number: 20090070355
    Abstract: Provided are techniques for data stream switching. While accepting data change messages from a historical data stream, in response to determining that the end of the historical data stream is approaching, consumption from a real time data stream is resumed. In accepting data change messages from one of a historical data stream and a real time data stream, a data change message identifier (DCMID) for a data change message is obtained. Then, it is determined whether the data change message is from the real time data stream. In response to determining that the data change message is from the real time data stream, the DCMID is processed against a historical data structure to determine whether the related data change message has been seen in the historical data stream. In response to determining that the data change message is from the historical data stream, the DCMID is processed against a real time data structure to determine whether the related data change message has been seen in the real time data stream.
    Type: Application
    Filed: September 11, 2007
    Publication date: March 12, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Paul Michael CADARETTE, Lawrence E. KIRK, Robert Daniel LOVE, Gregg Andrew UPTON, Anil Venkatesh VARKHEDI, Charles Joseph WEIGEL, III