Patents : Pop-up TV

2019-02-27 02:01:10

FOR the last two years Japanese electronics company Sanyo has been showing off a 3D TV system at consumer exhibitions. Viewers stand in front of a TV screen which simultaneously displays left and right eye images. A vertical grille over the screen is angled so that the viewer’s left eye sees only the left image, and the right eye sees only the right image. The puzzle was how Sanyo manages to achieve a 3D effect from ordinary TV pictures. Sanyo’s European patent application, 692 917, explains all. Ordinary 2D pictures are fed through an encoder which clones each frame. The cloned sequence is then delayed by a short period, equivalent to two or three frames. The original image is displayed to the left eye, and the delayed image to the right eye. When objects on screen are moving,