Patent ID: 8643691
Filing Date: 2014-02-04
Classification: G02F,G03B,H04N

Abstract:
1. A video conferencing system, comprising: a waveguide having an input edge, a back surface, and a viewing surface opposite the back surface, the waveguide being configured to receive a display image at the input edge and output the display image from the viewing surface; a projector positioned to project the display image into the input edge, through the waveguide, and out of the viewing surface; a camera positioned to view a camera image traveling into the viewing surface, through the waveguide, and out the back surface; a screen substantially covering the viewing surface of the waveguide and configured to selectively switch between a substantially transparent state and a light-scattering state; and a sync system configured to cause the screen to alternate between the substantially transparent state and the light-scattering state, configured to cause the camera to view the camera image while the screen is in the substantially transparent state, and configured to cause the projector to project the display image into the input edge while the screen is in the light-scattering state.