发明授权
- 专利标题： System for altering elements of a text file to mark documents
- 专利标题（中）： 用于更改文本文件元素以标记文档的系统
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申请号： US548904申请日： 1990-07-24
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公开(公告)号： US5388194A公开(公告)日： 1995-02-07
- 发明人: Peter Vogel
- 申请人： Peter Vogel
- 专利权人： Vogel; Peter
- 当前专利权人： Vogel; Peter
- 优先权： AUXPI6705 19880211
- 主分类号： B41M3/14
- IPC分类号： B41M3/14 ; G03C5/08 ; G06F17/21 ; G06F21/24 ; G09C5/00 ; G06F15/62
摘要：
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.
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