-
1.发明授权Watermark generator, watermark decoder, method for providing a watermark signal in dependence on binary message data, method for providing binary message data in dependence on a watermarked signal and computer program using a two-dimensional bit spreading 有权水印发生器，水印解码器，依赖于二进制消息数据提供水印信号的方法，根据水印信号提供二进制消息数据的方法和使用二维比特扩展的计算机程序公开(公告)号：US08989885B2
公开(公告)日：2015-03-24
申请号：US13584894
申请日：2012-08-14
申请人： Stefan Wabnik , Jörg Pickel , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Stefan Krägeloh , Reinhard Zitzmann , Tobias Bliem , Marco Breiling , Juliane Borsum
发明人： Stefan Wabnik , Jörg Pickel , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Stefan Krägeloh , Reinhard Zitzmann , Tobias Bliem , Marco Breiling , Juliane Borsum
CPC分类号： G10L19/018 , H04H20/14 , H04H60/29
摘要： A watermark generator for providing a watermark signal in dependence on binary message data includes an information processor configured to provide, in dependence on a single message bit of the binary message data, a 2-dimensional spread information representing the message bit in the form of a set of time-frequency-domain values. The watermark generator also includes a watermark signal provider configured to provide the watermark signal on the basis of the 2-dimensional spread information.A watermark detector, methods and computer programs are also described.
摘要翻译： 用于根据二进制消息数据提供水印信号的水印生成器包括：信息处理器，被配置为根据二进制消息数据的单个消息位提供表示以下形式的消息位的二维扩展信息： 一组时频域值。 水印生成器还包括被配置为基于二维扩展信息提供水印信号的水印信号提供器。 还描述了水印检测器，方法和计算机程序。
-
2.发明授权公开(公告)号：US08135955B2
公开(公告)日：2012-03-13
申请号：US12958253
申请日：2010-12-01
申请人： Ralph Kulessa , Jörg Pickel , Stefan Krägeloh , Patrick Aichroth , Frank Siebenhaar , Christian Neubauer , Wolfgang Spinnler
发明人： Ralph Kulessa , Jörg Pickel , Stefan Krägeloh , Patrick Aichroth , Frank Siebenhaar , Christian Neubauer , Wolfgang Spinnler
CPC分类号： H04L9/3236 , H04L2209/04 , H04L2209/38 , H04L2209/608 , H04L2209/805
摘要： The present invention relates to a device for detecting a manipulation of an information signal, having an extractor for extracting an information signal component characteristic for the information signal from the information signal, an encrypter for encrypting the information signal component to obtain an encrypted signal, and a comparator for comparing the encrypted signal to a reference signal, wherein the reference signal is an encrypted representation of a non-manipulated reference signal component of a reference information signal to detect the manipulation.
摘要翻译： 本发明涉及一种用于检测信息信号的操作的装置，具有从信息信号中提取信息信号的信息信号分量特性的提取器，用于加密信息信号分量以获得加密信号的加密器，以及 用于将加密信号与参考信号进行比较的比较器，其中参考信号是用于检测操作的参考信息信号的非操纵参考信号分量的加密表示。
-
3.发明申请公开(公告)号：US20110099386A1
公开(公告)日：2011-04-28
申请号：US12958253
申请日：2010-12-01
申请人： Ralph KULESSA , Jörg Pickel , Stefan KRÄGELOH , Patrick Aichroth , Frank Siebenhaar , Christian Neubauer , Wolfgang Spinnler
发明人： Ralph KULESSA , Jörg Pickel , Stefan KRÄGELOH , Patrick Aichroth , Frank Siebenhaar , Christian Neubauer , Wolfgang Spinnler
IPC分类号： G06F21/24
CPC分类号： H04L9/3236 , H04L2209/04 , H04L2209/38 , H04L2209/608 , H04L2209/805
摘要： The present invention relates to a device for detecting a manipulation of an information signal, having an extractor for extracting an information signal component characteristic for the information signal from the information signal, an encryptor for encrypting the information signal component to obtain an encrypted signal, and a comparator for comparing the encrypted signal to a reference signal, wherein the reference signal is an encrypted representation of a non-manipulated reference signal component of a reference information signal to detect the manipulation.
摘要翻译： 本发明涉及一种用于检测信息信号的操作的装置，具有从信息信号中提取信息信号的信息信号分量特性的提取器，用于加密信息信号分量以获得加密信号的加密器，以及 用于将加密信号与参考信号进行比较的比较器，其中参考信号是用于检测操作的参考信息信号的非操纵参考信号分量的加密表示。
-
4.发明授权公开(公告)号：US07917763B2
公开(公告)日：2011-03-29
申请号：US11747179
申请日：2007-05-10
申请人： Ralph Kulessa , Jörg Pickel , Stefan Krägeloh , Patrick Aichroth , Frank Siebenhaar , Christian Neubauer , Wolfgang Spinnler
发明人： Ralph Kulessa , Jörg Pickel , Stefan Krägeloh , Patrick Aichroth , Frank Siebenhaar , Christian Neubauer , Wolfgang Spinnler
CPC分类号： H04L9/3236 , H04L2209/04 , H04L2209/38 , H04L2209/608 , H04L2209/805
摘要： The present invention relates to a device for detecting a manipulation of an information signal, having an extractor for extracting an information signal component characteristic for the information signal from the information signal, an encryptor for encrypting the information signal component to obtain an encrypted signal, and a comparator for comparing the encrypted signal to a reference signal, wherein the reference signal is an encrypted representation of a non-manipulated reference signal component of a reference information signal to detect the manipulation.
摘要翻译： 本发明涉及一种用于检测信息信号的操作的装置，具有从信息信号中提取信息信号的信息信号分量特性的提取器，用于加密信息信号分量以获得加密信号的加密器，以及 用于将加密信号与参考信号进行比较的比较器，其中参考信号是用于检测操作的参考信息信号的非操纵参考信号分量的加密表示。
-
-
-
搜索结果
4 条记录 (耗时 0.012 秒)
