System for altering elements of a text file to mark documents

Details System for altering elements of a text file to mark documents System for altering elements of a text file to mark documents

1990-07-24

1995-02-07

Jankus, Almis

395117, 395148, G06F 1562

Patent

active

053881940

ABSTRACT:
A system for generating documents. A text file representing a document is encoded using a marking code. This marking code is encoded into the document by altering elements of the contents of the text file. Preferably the spaces between words are altered to be short and long spaces. The marked version therefore indicates, in an encoded fashion, the marking code that is applied.

REFERENCES:
patent: 3654611 (1972-04-01), Bluethman et al.
patent: 4434487 (1984-02-01), Rubinson et al.
patent: 4480179 (1984-10-01), Schaefer et al.
patent: 4577289 (1986-03-01), Comerford et al.
patent: 4605846 (1986-08-01), Duret et al.
patent: 4608618 (1986-08-01), Sturtevant-Stuart

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