Apparatus for scrambling and unscrambling documents

Details Apparatus for scrambling and unscrambling documents Apparatus for scrambling and unscrambling documents

1995-05-17

1996-02-13

Vu, Kim Yen

Facsimile and static presentation processing

Facsimile

Image transmission accuracy verification

358406, 358453, 380 18, H04N 144

Patent

active

054915635

ABSTRACT:
Apparatus for scrambling documents including apparatus for providing output signals representing the contents of a document, apparatus for operating on the output signals to produce modified output signals representing a scrambled version of the document including a system of reference marks to be used during later descrambling for registration, scaling, rotation, shifting and defect compensation and writing apparatus receiving the modified output signals and producing a scrambled version of the document.

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Manual of Photogrammetry, pp. 441-445.

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