CN102087691A - 改变文字字体隐藏计算机信息的方法 - Google Patents
改变文字字体隐藏计算机信息的方法 Download PDFInfo
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104834864A (zh) * | 2015-04-09 | 2015-08-12 | 南京安斯克信息科技有限公司 | 一种基于拓扑不变性和图像变形的打印文档信息追溯方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040189680A1 (en) * | 2003-03-31 | 2004-09-30 | Feng Xiao-Fan | System for displaying images on a display |
CN1588351A (zh) * | 2004-08-27 | 2005-03-02 | 北京北大方正电子有限公司 | 对电子公文或文档进行加密及鉴别真伪的方法 |
CN1933391A (zh) * | 2005-09-16 | 2007-03-21 | 北京书生国际信息技术有限公司 | 一种隐形编码嵌入和检测的方法 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US20040189680A1 (en) * | 2003-03-31 | 2004-09-30 | Feng Xiao-Fan | System for displaying images on a display |
CN1588351A (zh) * | 2004-08-27 | 2005-03-02 | 北京北大方正电子有限公司 | 对电子公文或文档进行加密及鉴别真伪的方法 |
CN1933391A (zh) * | 2005-09-16 | 2007-03-21 | 北京书生国际信息技术有限公司 | 一种隐形编码嵌入和检测的方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104834864A (zh) * | 2015-04-09 | 2015-08-12 | 南京安斯克信息科技有限公司 | 一种基于拓扑不变性和图像变形的打印文档信息追溯方法 |
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Legal Events
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C06 | Publication | ||
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Owner name: TIANJIN HEIMAXINGYUN IOT TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: FAN XIAOQING Effective date: 20120509 |
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C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 300252 HEDONG, TIANJIN TO: 301700 WUQING, TIANJIN |
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Effective date of registration: 20120509 Address after: 301700 Tianjin City, Wuqing Development Zone Fuyuan Road on the north side of building 402 C07 business headquarters base Applicant after: Tianjin Heima Xingyun IOT Science & Technology Co., Ltd. Address before: 300252 Hedong District of Tianjin City, Sun City Liyuan Dan 25-2-202 Applicant before: Fan Xiaoqing |
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Application publication date: 20110608 |