CN100428258C - 一种对电子地图进行加密的方法及设备 - Google Patents
一种对电子地图进行加密的方法及设备 Download PDFInfo
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- CN100428258C CN100428258C CNB2006100623582A CN200610062358A CN100428258C CN 100428258 C CN100428258 C CN 100428258C CN B2006100623582 A CNB2006100623582 A CN B2006100623582A CN 200610062358 A CN200610062358 A CN 200610062358A CN 100428258 C CN100428258 C CN 100428258C
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CNB2006100623582A CN100428258C (zh) | 2006-08-28 | 2006-08-28 | 一种对电子地图进行加密的方法及设备 |
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CNB2006100623582A CN100428258C (zh) | 2006-08-28 | 2006-08-28 | 一种对电子地图进行加密的方法及设备 |
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CN1924875A CN1924875A (zh) | 2007-03-07 |
CN100428258C true CN100428258C (zh) | 2008-10-22 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103377329A (zh) * | 2012-04-19 | 2013-10-30 | 常熟南师大发展研究院有限公司 | 一种基于水印加密标识的cad数据保护方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102402669B (zh) * | 2010-09-16 | 2014-07-23 | 工业和信息化部电信传输研究所 | 一种基于kml文件的版权保护方法 |
CN105678121B (zh) * | 2016-01-04 | 2018-09-07 | 北京百度网讯科技有限公司 | 基于地图失效数据的防伪方法和装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0840513A2 (en) * | 1996-11-05 | 1998-05-06 | Nec Corporation | Digital data watermarking |
EP1345353A1 (en) * | 2000-12-22 | 2003-09-17 | Vazquez Balsa, Rosa | Method of inserting hidden data into digital archives comprising polygons and detection methods |
CN1570565A (zh) * | 2004-05-08 | 2005-01-26 | 上海科臻投资咨询有限公司 | 电子地图数据存储与更新的方法 |
CN1737794A (zh) * | 2005-06-15 | 2006-02-22 | 武汉大学 | 一种用数字水印技术保护数据库数据版权的方法及其应用 |
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- 2006-08-28 CN CNB2006100623582A patent/CN100428258C/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0840513A2 (en) * | 1996-11-05 | 1998-05-06 | Nec Corporation | Digital data watermarking |
EP1345353A1 (en) * | 2000-12-22 | 2003-09-17 | Vazquez Balsa, Rosa | Method of inserting hidden data into digital archives comprising polygons and detection methods |
CN1570565A (zh) * | 2004-05-08 | 2005-01-26 | 上海科臻投资咨询有限公司 | 电子地图数据存储与更新的方法 |
CN1737794A (zh) * | 2005-06-15 | 2006-02-22 | 武汉大学 | 一种用数字水印技术保护数据库数据版权的方法及其应用 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103377329A (zh) * | 2012-04-19 | 2013-10-30 | 常熟南师大发展研究院有限公司 | 一种基于水印加密标识的cad数据保护方法 |
CN103377329B (zh) * | 2012-04-19 | 2016-03-30 | 常熟南师大发展研究院有限公司 | 一种基于水印加密标识的cad数据保护方法 |
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CN1924875A (zh) | 2007-03-07 |
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Address after: 100043 zone a, floor 3, building 17, Zhongguancun Software Park, No. 8, Dongbei Wangxi Road, Haidian District, Beijing Patentee after: Beijing long Fang Wanfang Technology Co.,Ltd. Address before: 100043 Beijing city Shijingshan District Beijing Road No. 3 Hua Yue long 9 storey building Patentee before: Beijing Changdi Youhao Technologies Co.,Ltd. |
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Address after: Room 602, 6th floor, building 1, No. 10, Shangdi 10th Street, Haidian District, Beijing 100085 Patentee after: Beijing Baidu Zhitu Technology Co.,Ltd. Address before: Zone A, floor 3, building 17, Zhongguancun Software Park, No. 8, Dongbei Wangxi Road, Haidian District, Beijing 100043 Patentee before: Beijing long Fang Wanfang Technology Co.,Ltd. |
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