Patents by Inventor Roger Warren Duvall

Roger Warren Duvall 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).

  • Methods and apparatus for managing sequencing of data received from devices in a retail point of sale system
    Patent number: 8239271
    Abstract: Techniques for managing data received from devices in a point of sale system are described. A point of sale system is operated utilizing independent software objects including a device sequence manager. The device sequence manager communicates with each device producing data for which proper sequencing must be maintained. Upon receiving a data event from a device, the device sequence manager creates a data object and stores the data object in an output queue. Upon receiving a request for data from an executive application, the device sequence manager retrieves the data object from the output queue and transfers it to the executive application, maintaining the sequence in which the data objects were received from the devices.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: August 7, 2012
    Assignee: NCR Corporation
    Inventors: Roger Warren Duvall, Michael Jordan Reece, Vincent J. Hrabosky, David John Burton
  • Methods and apparatus for managing sequencing of data received from devices in a retail point of sale system
    Publication number: 20030083944
    Abstract: Techniques for managing data received from devices in a point of sale system are described. A point of sale system is operated utilizing independent software objects including a device sequence manager. The device sequence manager communicates with each device producing data for which proper sequencing must be maintained. Upon receiving a data event from a device, the device sequence manager creates a data object and stores the data object in an output queue. Upon receiving a request for data from an executive application, the device sequence manager retrieves the data object from the output queue and transfers it to the executive application, maintaining the sequence in which the data objects were received from the devices.
    Type: Application
    Filed: September 4, 2001
    Publication date: May 1, 2003
    Applicant: NCR Corporation
    Inventors: Roger Warren Duvall, Michael Jordan Reece, Vincent J. Hrabosky, David John Burton