U.S. Philips Corporation

Thomas Wendler

Joachim Schmidt

Andrew G Stove

Ingwer C Carlsen

Heino Svensson

Karl-Juergan Moennich

Ruediger Grewer

Rudiger Grewer

Karl-Jurgen Monnich

A projection display system comprises a presentation computer (,) which generates images which are projected onto a screen (,) using a projector (,) controlled over a line (,) by the computer (,). A video camera (,) views the screen and a laser pointer (,) is supplied for pointing at the screen (,). An interaction computer (,) analyses the signal produced by the video camera (,) to determine the position of peak value in a frame to locate the point at which the laser pointer (,) is pointed. The laser pointer (,) is provided with buttons (,) which perform conventional computer mouse button functions. The state of the buttons (,) may be signalled to the computer (,) over an infra red link (,).

Projection display system

Method and device for the display of images from a group of images

Growing community of inventors

Hamburg, Germany

Thomas Wendler