Patents Assigned to Comtrol Corporation
  • Patent number: 9978233
    Abstract: A security system includes a plurality of laser scanners to establish light shields in an area to be monitored, with each of the light shields including at least one detection zone, and a controller to detect unauthorized entry to the area to be monitored based on a position and timing of breaks in the detection zones of the light shields.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: May 22, 2018
    Assignee: Comtrol Corporation
    Inventors: Nolan Kariniemi, Mark Pikkarainen
  • Patent number: 9466210
    Abstract: A stop violation detection system and method includes at least one sensor mounted to establish a light shield adjacent a first vehicle, at least one image capture device mounted to record at least one image adjacent the first vehicle, and a control unit operatively coupled with the at least one sensor and the at least one image capture device to detect breach of the light shield by a second vehicle and record the breach of the light shield by the second vehicle with the at least one image capture device.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: October 11, 2016
    Assignee: Comtrol Corporation
    Inventors: Bill Arpin, Mark Pikkarainen
  • Patent number: 8830060
    Abstract: A theft prevention system includes an RFID reader configured to read an RFID tag to authenticate access to a predefined area, a laser scanner configured to scan the predefined area and detect an object in the predefined area, and a security component configured to initiate a security action when the detected object is at least one of an unauthenticated object and an unauthorized object.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: September 9, 2014
    Assignee: Comtrol Corporation
    Inventors: Mark Pikkarainen, Bradford Beale
  • Publication number: 20130007112
    Abstract: A single communication device separate and distinct from each of a field device and a plurality of clients of data of the field device is configured to communicate with each of the field device and the plurality of clients of data of the field device, and is configured to be positioned in a communication path between the field device and the plurality of clients of data of the field device and between the plurality of clients of data of the field device to facilitate bi-directional communication between the field device and the plurality of clients of data of the field device and facilitate bi-directional communication between the plurality of clients of data of the field device. The single communication device selectively allows the plurality of clients of data of the field device to control the field device in response to data received from the field device.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Applicant: Comtrol Corporation
    Inventors: Kris M. Rydberg, Andrew J. Lunstad, Herb Berscheid
  • Patent number: 8266308
    Abstract: A system for communicating between a field device, a device controller for the field device, and an enterprise application distinct from the device controller includes a single communication device configured to communicate with each of the field device, the device controller, and the enterprise application. The single communication device is configured to facilitate communication between the field device and the device controller, and the field device and the enterprise application. The single communication device is configured to replicate data received from the field device and, after replication of the data, separately filter the data for the device controller and the enterprise application.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: September 11, 2012
    Assignee: Comtrol Corporation
    Inventors: Kris M. Rydberg, Andrew J. Lunstad, Herb Berscheid
  • Publication number: 20120038456
    Abstract: A theft prevention system includes an RFID reader configured to read an RFID tag to authenticate access to a predefined area, a laser scanner configured to scan the predefined area and detect an object in the predefined area, and a security component configured to initiate a security action when the detected object is at least one of an unauthenticated object and an unauthorized object.
    Type: Application
    Filed: August 16, 2011
    Publication date: February 16, 2012
    Applicant: Comtrol Corporation
    Inventors: Mark Pikkarainen, Bradford Beale
  • Patent number: 7680944
    Abstract: A low latency peripheral device sharing system has a host computer with an operating system, a kernel memory buffer, applications, device specific drivers, and a peripheral server driver. The server driver intercepts function calls invoking the local serial ports, and passes standard serial data from the application to a local area network. A device server on the local area network reads the data using a hybrid read block (semi-blocking read), and writes the data to the FIFO registers of the serial device and the remaining data to a queue for the serial device. Finally, the device server times the serial data and returns an intercharacter interval timer flag to the host computer to terminate a read operation.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: March 16, 2010
    Assignee: Comtrol Corporation
    Inventors: Ehassan Taghizadeh, Grant B. Edwards, Kurt Robideau, Stephen P. Erler