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    • 8. 发明授权
    • Method, apparatus, and program product for flexible redaction of content
    • 方法,设备和程序产品,用于灵活地修改内容
    • US07873838B2
    • 2011-01-18
    • US11611843
    • 2006-12-15
    • Jessica N. StaddonPhilippe Jean-Paul Golle
    • Jessica N. StaddonPhilippe Jean-Paul Golle
    • G09C1/00
    • H04L9/088H04L9/0894
    • A selectively encrypted data unit is generated from an unencrypted data unit. This is accomplished by accessing a list of attributes related to the unencrypted data unit that identify classifications of sensitive information within the unencrypted data unit. In addition, a protection key that is responsive to a random number is selected and auxiliary values computed from the attributes of the sensitive information and the random number are produced. The sensitive information is encrypted with the protection key to create an encrypted version of the sensitive information. The encrypted version is associated with the auxiliary values and linked to an attribute vector that classifies the sensitive information in the encrypted version. Data from the unencrypted data unit and the encrypted version of the sensitive information is stored as the selectively encrypted data unit.
    • 从未加密的数据单元生成选择性加密的数据单元。 这通过访问与未加密的数据单元中的敏感信息的分类的未加密的数据单元相关的属性的列表来实现。 此外,选择响应于随机数的保护密钥,并且产生从敏感信息和随机数的属性计算出的辅助值。 敏感信息用保护密钥加密,以创建敏感信息的加密版本。 加密版本与辅助值相关联,并链接到将加密版本中的敏感信息分类的属性向量。 来自未加密数据单元的数据和敏感信息的加密版本被存储为选择性加密的数据单元。
    • 10. 发明授权
    • Method for pre-detecting responses in a secondary radar or application to the detection of mode S responses
    • 在二次雷达或应用中预先检测响应以检测模式S响应的方法
    • US07688250B2
    • 2010-03-30
    • US10575075
    • 2004-09-29
    • Philippe Jean BillaudClaude Rene De Volder
    • Philippe Jean BillaudClaude Rene De Volder
    • G01S13/87G01S7/292G01S13/74G01S13/00
    • G01S13/782G01S13/781G01S13/784
    • The invention relates to a method for pre-detecting responses in a secondary radar. It applies in particular to the detection of mode S responses. An aim of the invention is to process the signals received before decoding the responses so as to allow the detection of mixed responses, and avoid the detection of ghost responses. For this purpose, the invention has in particular as subject a method for pre-detecting responses in a secondary radar, the responses to be pre-detected comprising a message coded by a modulated signal, characterized in that the presence of a signal exhibiting modulation characteristics in accordance with those of a message of a response to be pre-detected is identified; the duration of the signal identified is measured; this duration is compared with a minimum duration, this minimum duration being determined on the basis of the duration of the messages of the responses to be pre-detected.
    • 本发明涉及一种用于预先检测次级雷达中的响应的方法。 它特别适用于模式S响应的检测。 本发明的目的是处理在解码响应之前接收到的信号,以便允许检测混合响应,并避免检测到幽灵响应。 为此目的,本发明特别地作为一种用于预先检测次级雷达中的响应的方法,预先检测的响应包括由调制信号编码的消息,其特征在于存在具有调制特性的信号 根据预先检测到的响应的消息进行识别; 测量所识别信号的持续时间; 将该持续时间与最小持续时间进行比较,该最小持续时间是基于要预先检测的响应的消息的持续时间来确定的。