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1. 发明申请

US20110083191A1 Author Signatures for Legal Purposes 有权
标题翻译：作者签名为法定目的
公开(公告)号：US20110083191A1
公开(公告)日：2011-04-07
申请号：US12848845
申请日：2010-08-02
申请人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
发明人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
IPC分类号： H04L9/32 , G06F17/00
CPC分类号： G06F21/64
摘要： Methods and apparatus, including computer program products, implementing and using techniques for establishing trust in an electronic document. An electronic document is received. State dependent content in the electronic document is identified. The state dependent content is content that is renderable to have a several appearances. The electronic document is presented to a user, which includes disclosing the presence of any identified state dependent content in the electronic document.
摘要翻译：方法和设备，包括计算机程序产品，在电子文档中建立信任的实施和使用技术。收到电子文件。确定电子文件中的国家相关内容。状态依赖内容是可呈现多个外观的内容。电子文档被呈现给用户，其包括在电子文档中公开任何已识别的状态依赖内容的存在。

2. 发明授权

US07735144B2 Document modification detection and prevention 有权
标题翻译：文件修改检测和预防
公开(公告)号：US07735144B2
公开(公告)日：2010-06-08
申请号：US10440487
申请日：2003-05-16
申请人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
发明人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
IPC分类号： G06F12/16
CPC分类号： H04L63/18 , G06F21/6218 , H04L9/3247
摘要： Methods and apparatus, including computer program products, implementing and using techniques for document authentication. An electronic document is presented to a user. The electronic document has data representing a signed state and a current state. A disallowed difference between the signed state and the current state is detected, based on one or more rules that are associated with the electronic document. A digital signature associated with the electronic document is invalidated in response to the detecting.
摘要翻译：方法和设备，包括计算机程序产品，文件认证的实施和使用技术。向用户呈现电子文档。电子文档具有表示签名状态和当前状态的数据。基于与电子文档相关联的一个或多个规则，检测签名状态和当前状态之间的不允许的差异。与电子文档相关联的数字签名响应于检测而无效。

3. 发明授权

US08713322B2 Author signatures for legal purposes 有权
标题翻译：作者签名用于法律目的
公开(公告)号：US08713322B2
公开(公告)日：2014-04-29
申请号：US13594666
申请日：2012-08-24
申请人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
发明人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
IPC分类号： H04L9/00
CPC分类号： G06F21/64
摘要： Methods and apparatus, including computer program products, implementing and using techniques for establishing trust in an electronic document. An electronic document is received. State dependent content in the electronic document is identified. The state dependent content is content that is renderable to have a several appearances. The electronic document is presented to a user, which includes disclosing the presence of any identified state dependent content in the electronic document.
摘要翻译：方法和设备，包括计算机程序产品，在电子文档中建立信任的实施和使用技术。收到电子文件。确定电子文件中的国家相关内容。状态依赖内容是可呈现多个外观的内容。电子文档被呈现给用户，其包括在电子文档中公开任何已识别的状态依赖内容的存在。

4. 发明申请

US20120324232A1 Author Signatures for Legal Purposes 有权
标题翻译：作者签名为法定目的
公开(公告)号：US20120324232A1
公开(公告)日：2012-12-20
申请号：US13594666
申请日：2012-08-24
申请人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
发明人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
IPC分类号： H04L9/32 , H04L9/00
CPC分类号： G06F21/64
摘要： Methods and apparatus, including computer program products, implementing and using techniques for establishing trust in an electronic document. An electronic document is received. State dependent content in the electronic document is identified. The state dependent content is content that is renderable to have a several appearances. The electronic document is presented to a user, which includes disclosing the presence of any identified state dependent content in the electronic document.
摘要翻译：方法和设备，包括计算机程序产品，在电子文档中建立信任的实施和使用技术。收到电子文件。确定电子文件中的国家相关内容。状态依赖内容是可呈现多个外观的内容。电子文档被呈现给用户，其包括在电子文档中公开任何已识别的状态依赖内容的存在。

5. 发明授权

US08275993B2 Author signatures for legal purposes 有权
标题翻译：作者签名用于法律目的
公开(公告)号：US08275993B2
公开(公告)日：2012-09-25
申请号：US12848845
申请日：2010-08-02
申请人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
发明人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
IPC分类号： H04L9/00
CPC分类号： G06F21/64
摘要： Methods and apparatus, including computer program products, implementing and using techniques for establishing trust in an electronic document. An electronic document is received. State dependent content in the electronic document is identified. The state dependent content is content that is renderable to have a several appearances. The electronic document is presented to a user, which includes disclosing the presence of any identified state dependent content in the electronic document.
摘要翻译：方法和设备，包括计算机程序产品，在电子文档中建立信任的实施和使用技术。收到电子文件。确定电子文件中的国家相关内容。状态依赖内容是可呈现多个外观的内容。电子文档被呈现给用户，其包括在电子文档中公开任何已识别的状态依赖内容的存在。

6. 发明授权

US07315947B2 Author signatures for legal purposes 有权
标题翻译：作者签名用于法律目的
公开(公告)号：US07315947B2
公开(公告)日：2008-01-01
申请号：US10442679
申请日：2003-05-20
申请人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
发明人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
IPC分类号： H04L9/00
CPC分类号： G06F21/64
摘要： Methods and apparatus, including computer program products, implementing and using techniques for establishing trust in an electronic document. An electronic document is received. State dependent content in the electronic document is identified. The state dependent content is content that is renderable to have a several appearances. The electronic document is presented to a user, which includes disclosing the presence of any identified state dependent content in the electronic document.
摘要翻译：方法和设备，包括计算机程序产品，在电子文档中建立信任的实施和使用技术。收到电子文件。确定电子文件中的国家相关内容。状态依赖内容是可呈现多个外观的内容。电子文档被呈现给用户，其包括在电子文档中公开任何已识别的状态依赖内容的存在。

7. 发明申请

US20130212404A1 DOCUMENT MODIFICATION DETECTION AND PREVENTION 有权
标题翻译：文件修改检测和预防
公开(公告)号：US20130212404A1
公开(公告)日：2013-08-15
申请号：US12795502
申请日：2010-06-07
申请人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
发明人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
IPC分类号： G06F21/24
CPC分类号： H04L63/18 , G06F21/6218 , H04L9/3247
摘要： Methods and apparatus, including computer program products, implementing and using techniques for document authentication. An electronic document is presented to a user. The electronic document has data representing a signed state and a current state. A disallowed difference between the signed state and the current state is detected, based on one or more rules that are associated with the electronic document. A digital signature associated with the electronic document is invalidated in response to the detecting.
摘要翻译：方法和设备，包括计算机程序产品，文件认证的实施和使用技术。向用户呈现电子文档。电子文档具有表示签名状态和当前状态的数据。基于与电子文档相关联的一个或多个规则，检测签名状态和当前状态之间的不允许的差异。与电子文档相关联的数字签名响应于检测而无效。

8. 发明授权

US07774608B2 Author signatures for legal purposes 有权
标题翻译：作者签名用于法律目的
公开(公告)号：US07774608B2
公开(公告)日：2010-08-10
申请号：US11966866
申请日：2007-12-28
申请人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
发明人： James D. Pravetz , Krish Chaudhury , Sunil C. Agrawal
IPC分类号： H04L9/00
CPC分类号： G06F21/64
摘要： Methods and apparatus, including computer program products, implementing and using techniques for establishing trust in an electronic document. An electronic document is received. State dependent content in the electronic document is identified. The state dependent content is content that is renderable to have a several appearances. The electronic document is presented to a user, which includes disclosing the presence of any identified state dependent content in the electronic document.
摘要翻译：方法和设备，包括计算机程序产品，在电子文档中建立信任的实施和使用技术。收到电子文件。确定电子文件中的国家相关内容。状态依赖内容是可呈现多个外观的内容。电子文档被呈现给用户，其包括在电子文档中公开任何已识别的状态依赖内容的存在。

9. 发明申请

US20100161500A1 Dynamic Enabling of Functionality in Electronic Document Readers 有权
标题翻译：动态启用电子文件阅读器功能
公开(公告)号：US20100161500A1
公开(公告)日：2010-06-24
申请号：US12715984
申请日：2010-03-02
申请人： Krish Chaudhury , James D. Pravetz
发明人： Krish Chaudhury , James D. Pravetz
IPC分类号： G06Q99/00 , G06Q50/00 , G06F21/00 , H04L9/00
CPC分类号： G06Q50/184 , G06F21/10 , H04L9/3236 , H04L9/3247 , H04L2209/603
摘要： Methods and apparatus, including computer program products, implementing and using techniques for digital rights management. In one aspect, a method is provided. The method includes receiving an electronic document, where the electronic document includes one or more content items, a set of usage rights defining one or more features to be enabled when the document is read by an electronic document reader, and a stored representation. The method further includes generating a representation of invariant content items of the electronic document, comparing the generated representation with the stored representation, and enabling features corresponding to the set of usage rights in the electronic document only if the generated representation and the stored representation are identical, where the features are features performed by the electronic document reader on the electronic document.
摘要翻译：方法和设备，包括计算机程序产品，数字版权管理的实施和使用技术。一方面，提供了一种方法。所述方法包括接收电子文档，其中所述电子文档包括一个或多个内容项，当所述文档被电子文档读取器读取时定义要启用的一个或多个特征的一组使用权限，以及存储的表示。该方法还包括：如果生成的表示和存储的表示相同，则生成电子文档的不变内容项目的表示，将所生成的表示与所存储的表示进行比较，以及启用与电子文档中的该组使用权对应的特征其中特征是电子文档读取器在电子文档上执行的特征。

10. 发明授权

US07698559B1 Dynamic enabling of functionality in electronic document readers 有权
标题翻译：动态启用电子文档阅读器功能
公开(公告)号：US07698559B1
公开(公告)日：2010-04-13
申请号：US11865712
申请日：2007-10-01
申请人： Krish Chaudhury , James D. Pravetz
发明人： Krish Chaudhury , James D. Pravetz
IPC分类号： G06F21/24 , H04L9/32
CPC分类号： G06Q50/184 , G06F21/10 , H04L9/3236 , H04L9/3247 , H04L2209/603
摘要： Methods and apparatus, including computer program products, implementing and using techniques for digital rights management. In one aspect, a method is provided. The method includes receiving an electronic document, where the electronic document includes one or more content items, a set of usage rights defining one or more features to be enabled when the document is read by an electronic document reader, and a stored representation. The method further includes generating a representation of invariant content items of the electronic document, comparing the generated representation with the stored representation, and enabling features corresponding to the set of usage rights in the electronic document only if the generated representation and the stored representation are identical, where the features are features performed by the electronic document reader on the electronic document.
摘要翻译：方法和设备，包括计算机程序产品，数字版权管理的实施和使用技术。一方面，提供了一种方法。所述方法包括接收电子文档，其中所述电子文档包括一个或多个内容项，当所述文档被电子文档读取器读取时定义要启用的一个或多个特征的一组使用权限，以及存储的表示。该方法还包括：如果生成的表示和存储的表示相同，则生成电子文档的不变内容项目的表示，将所生成的表示与所存储的表示进行比较，以及启用与电子文档中的该组使用权对应的特征其中特征是电子文档读取器在电子文档上执行的特征。

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