Browse Prior Art Database

A Three-Dimensional Video Display System

IP.com Disclosure Number: IPCOM000041074D
Original Publication Date: 1987-Jun-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Antonie, CH: AUTHOR [+2]

Abstract

Described is a three-dimensional (3-D) system for video display that has applicability to the television broadcast industry.

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This is the abbreviated version, containing approximately 100% of the total text.

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A Three-Dimensional Video Display System

Described is a three-dimensional (3-D) system for video display that has applicability to the television broadcast industry.

Referring to the figure, a 3-D program is recorded by two separated cameras A and B. The primary camera would send out the signal via the usual broadcast channel. Both even and odd fields will display this signal on monovisual systems. The secondary camera signal will be scrambled and broadcast on a different frequency. A converter 10 would be attached to the TV input 12 for those desiring 3-D. For 3-D broadcast reception, the converter 10 will receive and descramble the secondary signal and substitute it for the odd field images to be displayed on the television 14. An inductance loop 16 surrounding the viewing area would carry a low power synchronizing signal throughout the viewing area.

Each viewer would wear lightweight glasses 18 with liquid crystal shutters attached to the lenses. A built-in voltage source and switching circuit 20 would drive the liquid crystal shutters in phase with the inductance loop signal. Other configurations within the glasses, such as mechanical shutters, sliding bi-prisms, and mirrors, may also be utilized.

Disclosed anonymously.

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