Patents by Inventor David C. Swift

David C. Swift 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).

  • Patent number: 6556236
    Abstract: An intelligent system and process for producing and displaying stereoscopically-multiplexed images of either real or synthetic 3-D objects, for use in realistic stereoscopic viewing thereof. The system comprises a subsystem for acquiring parameters specifying the viewing process of a viewer positioned relative to a display surface associated with a stereoscopic display subsystem. A computer-based subsystem is provided for producing stereoscopically-multiplexed images of either the real or synthetic 3-D objects, using the acquired parameters. The stereoscopically-multiplexed images are on the display surface, for use in realistic stereoscopic viewing of either the real or synthetic 3-D objects, by the viewer.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: April 29, 2003
    Assignee: Reveo, Inc.
    Inventors: David C. Swift, Sadeg M. Faris
  • Publication number: 20020163600
    Abstract: The invention is a stereoscopic shutter system having a single liquid crystal (LC) cell. The system may have flexible substrates or non-flexible substrates. The system requires only two electrical conductors to shutter both eyes. The system uses twisted nematic liquid crystal, ferro-electric liquid crystal, pi-cell technology, or other similar shuttering technologies. The system includes only one LC cell, a single large laminated linearly polarizing filter P1, and two smaller linear polarizing analyzers oriented in the P1 and P2 states. The shutters may be bent into a one-dimensional curved shape about the vertical or horizontal axis.
    Type: Application
    Filed: May 7, 2002
    Publication date: November 7, 2002
    Inventors: Adam W. Divelbiss, David C. Swift
  • Publication number: 20020163574
    Abstract: Limiting or eliminating external light to the peripheral vision areas of the user reduces flicker. The aperture of the liquid crystal filter is dynamically adjusted to maintain a particular aspect ratio to match the image displayed by computers and television sets. The size of the aperture of the liquid crystal filter is user adjustable through a mechanical or electrical aperture system. The size of the aperture of the liquid crystal filter is automatically adjustable through an electrical aperture control system and a proximity system. The aperture is adjusted based on the sensed distance between the user and the display medium. The location of the aperture is automatically adjustable through an electrical aperture control system and head orientation system. The aperture location in front of the LC shutter is moved vertically or horizontally depending on the pointing direction of the users head with respect to the display system.
    Type: Application
    Filed: May 7, 2002
    Publication date: November 7, 2002
    Inventors: Adam W. Divelbiss, David C. Swift
  • Publication number: 20020141635
    Abstract: Methods and systems are described for zooming a stereoscopic image. The image is typically divided into a plurality of regions. A value is defined for each region, such as a minimum parallax value or a function of the minimum parallax value. A zoom area is selected having a boundary intersecting at least one of the regions. The values within the intersected regions are compared to determine a preferred value based on predetermined criteria. The zoom area is shifted by the preferred value or a function of the preferred value.
    Type: Application
    Filed: January 24, 2002
    Publication date: October 3, 2002
    Inventors: David C. Swift, Joshua Ong
  • Patent number: 6456432
    Abstract: The present invention relates to a system and method of viewing pairs of perspective images of 3-D objects (i.e. stereoscopic image pairs) displayed from a CRT display surface in a time-multiplexed or field-sequential manner, and more particularly to a universal method of generating control signals for synchronously changing the optical state of liquid crystal (LC) shutter panels through which the time-multiplexed perspective. images can be sequentially viewed in a substantially flicker-free manner by the left and right eyes of a human viewer, independent of whether the images are displayed on NTSC, PAL, VGA or SVGA styled CRT display devices.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: September 24, 2002
    Assignee: Reveo, Inc.
    Inventors: Gerard M. Lazzaro, David C. Swift, Gregory J. Hamlin, Sadeg M. Faris
  • Publication number: 20020122585
    Abstract: The preferred embodiment addresses the problem of delivering stereoscopic media in electronic form (images, videos, animations, object models, etc.). First, it provides a single format with independent right and left channels to represent the stereoscopic media. Second, it provides a means of displaying stereoscopic media inside a movable windowed area while eliminating pseudostereo conditions during movement. Third, it provides automatic and manual optimization adjustments (parallax shift adjustment, brightness control, color adjustment, and cross-talk reduction) to the stereoscopic media based on viewing hardware, monitor size, and media content for optimal viewing quality. Fourth, it provides seamless support for monoscopic (2D) viewing modes allowing delivery of said stereoscopic media in a normal 2D viewing mode.
    Type: Application
    Filed: June 12, 2001
    Publication date: September 5, 2002
    Inventors: David C. Swift, Michael L. Roche, Jon Siragusa, Adam W. Divelbiss
  • Publication number: 20020118277
    Abstract: A first embodiment of the invention permits an extension of battery life through detection of the display synchronization signals of a computer and a power management system. The power management system also eliminates need for batteries through use of a 5V power source from pin 9 of the VGA port. A second embodiment improves the ease of use and the utility of the 3D system through removable glasses with improvements over the previous design.
    Type: Application
    Filed: February 4, 2002
    Publication date: August 29, 2002
    Inventors: Adam W. Divelbiss, David C. Swift, Walter V. Tserkovnyuk
  • Publication number: 20020075308
    Abstract: A multi-purpose interactive application execution system (MPIAE) provides a platform for a wide variety of applications having differing hardware and software requirements. The MPIAE system may support applications in many different fields, from video-gaming to helping the handicapped. This range of applications is made possible by flexibility of software and hardware resident within the MPIAE system. The software of the MPIAE system includes a variety of drivers equipped to interface with a large number of possible input signals. The hardware of the MPIAE system includes many different types of industrial grade controls which allow for a large number of input possibilities.
    Type: Application
    Filed: June 12, 2001
    Publication date: June 20, 2002
    Inventors: Adam W. Divelbiss, David C. Swift
  • Publication number: 20010028416
    Abstract: An exemplary embodiment is a system and method for displaying three-dimensional imagery. The system includes an image source, a first projector having light emission, a second projector having a light emission and a twisted nematic liquid crystal rotator disposed in the light emission of the first projector. The first projector and second projector are connected to the image source.
    Type: Application
    Filed: January 29, 2001
    Publication date: October 11, 2001
    Inventors: Adam W. Divelbiss, David C. Swift
  • Patent number: 6034717
    Abstract: A desktop-based stereoscopic projection display system affording high-resolution stereoscopic and peripheral viewing of three-dimensional color imagery over a field of view of at least 180.degree.. The projection volume required by each image projector of the display system is disposed substantially within the overall display volume of the display system, while maximizing the viewing volume within which the viewer is free to move during interactive stereoscopic viewing sessions. The display system utilizes high-resolution image projectors, keystoning correcting optics and projection-beam folding mirrors which are compactly mounted immediately above the upper volume-boundary surface of the overall display volume of the system, in order to permit the use of three-dimensional display structures having footprints and display volumes that are supportable upon desktops and in other viewing environments characterized by spatial restrictions.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: March 7, 2000
    Assignee: Reveo, Inc.
    Inventors: Aaron M. Dentinger, David C. Swift, Sadeg M. Faris
  • Patent number: 6011581
    Abstract: An intelligent system and process for producing and displaying stereoscopically-multiplexed images of either real or synthetic 3-D objects, for use in realistic stereoscopic viewing thereof. The system comprises a subsystem for acquiring parameters specifying the viewing process of a viewer positioned relative to a display surface associated with a stereoscopic display subsystem. A computer-based subsystem is provided for producing stereoscopically-multiplexed images of either the real or synthetic 3-D objects, using the acquired parameters. The stereoscopically-multiplexed images are on the display surface, for use in realistic stereoscopic viewing of either the real or synthetic 3-D objects, by the viewer.
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: January 4, 2000
    Assignee: Reveo, Inc.
    Inventors: David C. Swift, Sadeg M. Faris
  • Patent number: 5821989
    Abstract: The present invention relates to a system and method of viewing pairs of perspective images of 3-D objects (i.e. stereoscopic image pairs) displayed from a CRT display surface in a time-multiplexed or field-sequential manner, and more particularly to a universal method of generating control signals for synchronously changing the optical state of liquid crystal (LC) shutter panels through which the time-multiplexed perspective images can be sequentially viewed in a substantially flicker-free manner by the left and right eyes of a human viewer, independent of whether the images are displayed on NTSC, PAL, VGA or SVGA styled CRT display devices.
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: October 13, 1998
    Assignee: VRex, Inc.
    Inventors: Gerard M. Lazzaro, David C. Swift, Gregory J. Hamlin, Sadeg M. Faris
  • Patent number: 5502481
    Abstract: A desktop-based stereoscopic projection display system affording high-resolution stereoscopic and peripheral viewing of three-dimensional color imagery over a field of view of at least 180.degree.. The projection volume required by each image projector of the display system is disposed substantially within the overall display volume of the display system, while maximizing the viewing volume within which the viewer is free to move during interactive stereoscopic viewing sessions. The display system utilizes high-resolution image projectors, keystoning correcting optics and projection-beam folding mirrors which are compactly mounted immediately above the upper volume-boundary surface of the overall display volume of the system, in order to permit the use of three-dimensional display structures having footprints and display volumes that are supportable upon desktops and in other viewing environments characterized by spatial restrictions.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: March 26, 1996
    Assignee: Reveo, Inc.
    Inventors: Aaron M. Dentinger, David C. Swift, Sadeg M. Faris