# US 2014/0192175 A1 · Multi-Person Stereo Display System

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- Number: US 2014/0192175 A1
- Document ID: US20140192175A1
- Status: Published application
- Kind: A1
- Application number: 14/152,936
- Filed: 2014-01-10
- Published: 2014-07-10
- Earliest claimed: 1996-11-13
- Assignees: Fakespace Labs, Inc.
- Applicants: Fakespace Labs, Inc.
- Inventors: Ian E. McDowall; Mark T. Bolas
- Web page: https://patentgrep.com/patent/US20140192175A1

## CPC

- H04N 13/334: using spectral multiplexing
- G02B 27/0093: {with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking}
- G02B 30/24: involving temporal multiplexing, e.g. using sequentially activated left and right shutters
- H04N 13/15: for colour aspects of image signals
- H04N 13/158: {Switching image signals}
- H04N 13/161: Encoding, multiplexing or demultiplexing different image signal components (for multi-view video sequence encoding H04N19/597)
- H04N 13/189: Recording image signals; Reproducing recorded image signals
- H04N 13/324: Colour aspects
- H04N 13/341: using temporal multiplexing
- H04N 13/363: using image projection screens (volumetric display H04N13/388)
- H04N 13/368: for two or more viewers
- H04N 13/398: Synchronisation thereof; Control thereof
- H04N 13/286: having separate monoscopic and stereoscopic modes
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

The multi-person stereo display system permits several independent viewers to see different stereo images on a single projection surface. This is accomplished through the innovative use of video multiplexing, software, control electronics, and special viewing glasses. The system is particularly useful in situations where the viewers see computer generated images from their own independent perspectives.

## Claims

### Claim 1

A multi-person stereoscopic display system comprising:
at least one display;
a first pair of stereoscopic shutter glasses for use by a first viewer;
a second pair of stereoscopic shutter glasses for use by a second viewer;
a computer programmed to generate a first set of images and a second set of images, the first set of images being generated for the first viewer, the second set of images being generated for the second viewer, the first and second set of images to be visible on the display, and
a controlling unit which controls the optical transparency of the first pair of glasses and the second pair of glasses; said controlling unit operating in conjunction with the computer to control, the first pair of glasses and the second pair of glasses so that the first pair of glasses is transparent when the first set of images is projected, and the the second pair of glasses is transparent when the second set of images is projected.

### Claim 2

A stereoscopic display system comprising:
a display;
a plurality of stereoscopic shutter glasses for use by a plurality of viewers;
a computer programmed to generate a plurality of sets of stereo images, each of said plurality of set of stereo images corresponding to a point of view of a particular viewer, the plurality of sets of stereo images to be presented on the display; and
a controlling unit which controls the transparency of shutters in each of the plurality of shutter glasses;
said controlling unit operating in conjunction with the computer to control the plurality of shutter glasses so that each pair of shutter glasses is transparent when the stereo images corresponding to the point of view of the viewer is displayed on the display surface.