Video communication system allowing graphic additions to the ima

Details Video communication system allowing graphic additions to the ima Video communication system allowing graphic additions to the ima

1980-09-03

1983-02-01

Britton, Howard

Facsimile and static presentation processing

Static presentation processing

Attribute control

358183, H04N 522

Patent

active

043718930

ABSTRACT:
A system of video communication which allows the production of a graphic creation which can be transmitted by television receivers at some distance, comprises a projector which projects images on the bottom surface of a screen, through a partly reflective mirror. The image on the screen is fed through this mirror to photographic means which are connected with a storage, recording and/or reproduction system. The screen comprises a semi-transparent sheet which can be provided with a photosensitive coating. The image projected from below onto the screen is visible for an operator who can modify it from above the screen. Another embodiment of screen comprises a transparent lower sheet and a translucent upper sheet of distinctively different colors, with particulate material between them. Pressing with an instrument on the upper sheet displaces the particulate material and temporarily prints on the lower sheet the pressed image of the upper sheet.
This system allows an animation of the projected images by their modification, and can be used for conferences, teaching, tests, etc.

REFERENCES:
patent: 3104283 (1963-09-01), Moller
patent: 3617630 (1971-11-01), Reiffel
patent: 3814853 (1974-06-01), Lardeau
patent: 3846826 (1974-11-01), Mueller
patent: 3915567 (1975-10-01), Altman
patent: 3917955 (1975-11-01), Inuiya
patent: 3947103 (1976-03-01), Altman

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