Patents by Inventor Hamid J. Rabat-Torki

Hamid J. Rabat-Torki 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).

  • Programmable logic controller protocol converter
    Patent number: 7894460
    Abstract: A programmable logic controller (PLC) protocol converter is disclosed that allows a supervisory control and data acquisition (SCADA) system to effectively communicate with a PLC device using a desired communications protocol, particularly in cases where the PLC device does not “speak” the desired communications protocol. A first thread may be configured to continually read PLC addresses, one at a time, using a communications protocol understood by the PLC device. The first thread may store the data values in the shared data array within program memory. Thus, the first thread exposes data from the PLC device, as specified in the configuration file. At the same time, a second thread may be configured to serve the data in the shared data array according to a second communications protocol, e.g., to the SCADA system.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: February 22, 2011
    Assignee: Air Liquide Large Industries U.S. LP
    Inventors: Joshua Carpman, Travis R. Cummings, Hamid J. Rabat-Torki
  • PROGRAMMABLE LOGIC CONTROLLER PROTOCOL CONVERTER
    Publication number: 20090028184
    Abstract: A programmable logic controller (PLC) protocol converter is disclosed that allows a supervisory control and data acquisition (SCADA) system to effectively communicate with a PLC device using a desired communications protocol, particularly in cases where the PLC device does not “speak” the desired communications protocol. A first thread may be configured to continually read PLC addresses, one at a time, using a communications protocol understood by the PLC device. The first thread may store the data values in the shared data array within program memory. Thus, the first thread exposes data from the PLC device, as specified in the configuration file. At the same time, a second thread may be configured to serve the data in the shared data array according to a second communications protocol, e.g., to the SCADA system.
    Type: Application
    Filed: July 25, 2008
    Publication date: January 29, 2009
    Inventors: JOSHUA CARPMAN, TRAVIS R. CUMMINGS, HAMID J. RABAT-TORKI