Invention Grant
US08429397B2 Generating an encryption font by converting character codes and recording the encryption font in a unique tag
失效
通过转换字符代码并将加密字体记录在唯一标签中生成加密字体
- Patent Title: Generating an encryption font by converting character codes and recording the encryption font in a unique tag
- Patent Title (中): 通过转换字符代码并将加密字体记录在唯一标签中生成加密字体
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Application No.: US12475155Application Date: 2009-05-29
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Publication No.: US08429397B2Publication Date: 2013-04-23
- Inventor: Satoshi Imai
- Applicant: Satoshi Imai
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: JP2008-144641 20080602
- Main IPC: H04L29/06
- IPC: H04L29/06
Abstract:
A character string not to be referred to which is included in structured document data is extracted, and an XML generation unit generates a random code table. Then, the XML generation unit generates a conversion font by converting character codes of a font using the table. The character codes of a document are converted in accordance with the table. The XML generation unit embeds the font and the conversion font.
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