Patents by Inventor Stuart E. Ralston

Stuart E. Ralston 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).

  • Publication number: 20030014212
    Abstract: An augmented vision system comprises a wireless hand-held communication device, a display processor, a user-wearable display device, and an input device. The wireless hand-held communication device receives survey-related data associated with a current position of a user from a remote server on a computer network, via a wireless network. The input device receives input from the user, and the display processor provides stereoscopic image data to the display device in response to the input, based on the survey-related data. The display device has a substantially transparent display area to superimpose stereoscopic images of objects on a field of view of the user, based on the image data.
    Type: Application
    Filed: July 12, 2001
    Publication date: January 16, 2003
    Inventors: Stuart E. Ralston, Michael William Lesyna
  • Patent number: 6094625
    Abstract: Methods and apparatus which enable use of augmented vision in survey procedures and related work. Virtual objects are presented to an operator on a see through display. Some of the objects correspond with real objects in the operators field of view at any instant and others may provide interactive functions for the operator. The operator eye positions are determined using measurements from a remote positioning system such as GPS, an operator head orientation sensing system, and knowledge of head geometry. Positions and attributes of real objects are stored in a database memory carried by the operator. The operators field of view is continuously determined and images of the real objects are generated from database information by a rendering system. The images are presented on the see through display as virtual objects. Numerous functions may be provided for the operator using virtual interactive objects, depending on the work at hand.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: July 25, 2000
    Assignee: Trimble Navigation Limited
    Inventor: Stuart E. Ralston