Patents by Inventor Tomohiro Suetsugu

Tomohiro Suetsugu 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).

  • Stream recovery method, stream recovery program and failure recovery apparatus
    Patent number: 8140917
    Abstract: Stream data is structured including data tuples as a query process target and a recovery point tuple for indicating a position of the data tuples in the stream data. Upon detection of a failure at a computer, another computer reads position information in the stream data indicating a position of data tuples already subjected to the query process by a stream processing apparatus from a recovery points, uses the recovery point positioned lastly among the read recovery points as a reenter point of the input stream, and instructs a stream distribution apparatus to reenter the input stream starting from the reenter position into the other computer.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: March 20, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Tomohiro Suetsugu, Satoru Watanabe, Eri Kubo
  • STREAM RECOVERY METHOD, STREAM RECOVERY PROGRAM AND FAILURE RECOVERY APPARATUS
    Publication number: 20100235681
    Abstract: Stream data is structured including data tuples as a query process target and a recovery point tuple for indicating a position of the data tuples in the stream data. Upon detection of a failure at a computer, another computer reads position information in the stream data indicating a position of data tuples already subjected to the query process by a stream processing apparatus from a recovery points, uses the recovery point positioned lastly among the read recovery points as a reenter point of the input stream, and instructs a stream distribution apparatus to reenter the input stream starting from the reenter position into the other computer.
    Type: Application
    Filed: February 25, 2010
    Publication date: September 16, 2010
    Inventors: Tomohiro SUETSUGU, Satoru Watanabe, Eri Kubo