Integral computer scanning system

Details Integral computer scanning system Integral computer scanning system

1994-04-01

1995-05-16

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358400, 358471, 3647091, 345207, H04N 104

Patent

active

054166101

ABSTRACT:
A photovoltaic film provided with a computer allows the computer to be used as a scanner as well as a conventional computer. In a preferred embodiment the photovoltaic film is transparent, and is applied directly to the display screen of the computer system. The film is connected to signal processing means connected to the internal bus structure of the computer. A hard copy document is positioned adjacent the film, and control routines loaded to and run on the computer control pixel illumination on the computer screen in a scanning protocol. Illumination of pixels in conjunction with characteristics of the hard copy at the pixel position cause the signal generated by the photovoltaic film to alter in voltage. Signals from the film are processed and used to generate a bit pattern as the scanned image. In an alternative embodiment the photovoltaic film is a part of a separate sheet applicable to a computer screen and connectable to an expansion card for connection to the computer, providing a system useful with existing computers.

REFERENCES:
patent: 5155627 (1992-10-01), Keehn et al.

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