1
Michael J Suman, Thomas L Welling, Robert J Schneider: Projected display system for a vehicle. Prince Corporation, Price Heneveld Cooper DeWitt & Litton, October 13, 1998: US05822023 (162 worldwide citation)

A projection system for projecting television images in a vehicle including a console for mounting to the roof of a vehicle with a housing in which a video projector for television signals is fixedly mounted. The console further includes a cover which is pivotally mounted to the housing at its forwa ...


2
John C Tang, Scott L Minneman, Sara A Bly, Steve R Harrison: Video computational shared drawing space. Xerox Corporation, Anglin & Giaccherini, August 24, 1993: US05239373 (154 worldwide citation)

The present invention comprises a display unit (10) which displays a composite image (38); a stylus (24) which is used to "write" on the composite image (38); a way of detecting (20) the position of the stylus (24) over the composite image (38); a video camera (12) mounted a short distance away from ...


3
Lenny Liptoh, Arthur Berman, Lawrence D Meyer, James L Fergason: Method and system employing a push-pull liquid crystal modulator. SteroGraphics Corporation, Limbach Limbach & Sutton, December 20, 1988: US04792850 (124 worldwide citation)

A system and method employing a push-pull modulator for stereoscopic image selection. The modulator includes a pair of surface mode liquid crystal cells having orthogonal rub axes, and a linear polarizer having absorption axis bisecting the orthogonal rub axes, and has high speed, good transmission, ...


4
Peter J Janssen, Jeffrey A Shimizu: High contrast illumination system for video projector. U S Philips Corporation, Michael J Balconi Lamica, August 15, 1995: US05442414 (119 worldwide citation)

A high contrast illumination system particularly suitable for use with light valves that have an array of reflective pivotable pixels. The light valve is arranged in light path which extends from a projection lamp to a projection lens. By the action of the pivotable pixels the light is directed eith ...


5
John C Tang, Scott L Minneman: Apparatus allowing remote interactive use of a plurality of writing surfaces. Xerox Corporation, June 18, 1991: US05025314 (102 worldwide citation)

Remote interactive use of a plurality of writing surfaces, such as special wall mounted whiteboards and the like, is facilitated by an apparatus which includes, for each writing surface, a translucent screen acting as the writing surface itself, a video camera located behind the translucent screen f ...


6
Adrian Robert Leigh Travis: Far-field display. Cambridge Flat Projection Displays, Young & Basile P C, January 25, 2005: US06847488 (85 worldwide citation)

A flat-panel projection display comprises a transparent slab and integral area grating, a transparent rod with rectangular cross-section and integral linear grating, arranged along the edge of the slab, and a small video projector. The projector is arranged to direct a virtual image into the end of ...


7
Herbert D Zeman: Contrast enhancing illuminator. Luedeka Neely & Graham PC, October 19, 1999: US05969754 (80 worldwide citation)

An apparatus which enhances the visual contrast between bright and dark features of an object by projecting an image of the object onto the object. The features of the projected object image overlay the features of the object such that an observer of the enhanced object senses that the bright featur ...


8
Ichiro Yamashita, Mamoru Takeda, Yoshito Miyatake, Yoneharu Takubo: Video projector. Matsushita Electric Industrial, Wenderoth Lind & Ponack, June 26, 1990: US04936656 (72 worldwide citation)

A video projector utilizes a reflective liquid crystal light valve of the active matrix system and a polarizing beam splitter. An active matrix array circuit of the light valve has pixel electrodes arranged in a matrix mattern. The pixel electrodes each has a reflective surface for reflecting a ligh ...


9
William J Wrobleski: Method and system for preventing the off screen copying of a video or film presentation. Macrovision Corporation, Gerow D Brill, January 25, 2000: US06018374 (71 worldwide citation)

A method and system for preventing a visible video copy being made of a projected image on a screen. In a theater environment, an image is projected upon a screen by a film projector or a video projector. A form of film piracy is accomplished by copying the image on the screen with a video camcorder ...


10
Katsumi Kurematsu, Hideaki Mitsutake, Nobuo Minoura, Haruyuki Yanagi, Masaaki Kanashiki: Projector. Canon Kabushiki Kaisha, Morgan & Finnegan, October 6, 1992: US05153752 (64 worldwide citation)

A liquid crystal type video projector is disclosed which has a reflection type optical modulator for effective use of beams from a radiation source such as a lamp or the like. The projector further comprises means for modulating the plane of polarization of a polarized beam entering the radiation so ...



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