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    • 1. 发明授权
    • Method and device for embedding watermark information and method and device for extracting embedded watermark information
    • 用于嵌入水印信息的方法和装置以及用于提取嵌入水印信息的方法和装置
    • US07886152B2
    • 2011-02-08
    • US10502622
    • 2004-07-22
    • Christian NeubauerJuergen HerreRalph KulessaFrank SiebenhaarWolfgang Spinnler
    • Christian NeubauerJuergen HerreRalph KulessaFrank SiebenhaarWolfgang Spinnler
    • H04L9/32
    • G06T1/0085G06T1/005G06T2201/0065
    • For embedding watermark information into an information signal including audio and/or video information, first of all a synchronization sequence with a plurality of synchronization sequence units and a data sequence with a plurality of data sequence units are provided, wherein between the data sequence and the synchronization sequence a time shift is present and wherein a degree of shifting depends on the watermark information. A combination means generates a combination sequence having a plurality of combination sequence units from the synchronization sequence and the data sequence shifted with regard to the synchronization sequence, wherein the combination sequence units are derived from synchronization sequence units and shifted data sequence units. The combination sequence is combined with the information signal in order to embed the watermark information into the information signal. A watermark extractor receives a synchronization sequence correlation peak for every data sequence correlation peak associated with the same and therefore determines the watermark information on the basis of the time interval between the synchronization sequence correlation peak and the data sequence correlation peak in a secure and robust way. The concept is robust, provides a high data rate and is simultaneously flexible with regard to the weighting of synchronization energy and data energy and with regard to the robustness on the one hand and data rate on the other hand, respectively.
    • 为了将水印信息嵌入到包括音频和/或视频信息的信息信号中,首先提供具有多个同步序列单元的同步序列和具有多个数据序列单元的数据序列,其中在数据序列和 同步序列存在时移,其中移位程度取决于水印信息。 组合装置根据同步序列产生具有多个组合序列单元的组合序列和相对于同步序列移位的数据序列,其中组合序列单元从同步序列单元和移位数据序列单元导出。 将组合序列与信息信号组合,以将水印信息嵌入到信息信号中。 水印提取器接收与其相关联的每个数据序列相关峰值的同步序列相关峰值,因此以安全和鲁棒的方式基于同步序列相关峰值与数据序列相关峰值之间的时间间隔来确定水印信息 。 该概念是鲁棒的,提供高数据速率,并且在同步能量和数据能量的加权方面以及另一方面一方面的鲁棒性和数据速率方面同时是灵活的。
    • 2. 发明申请
    • Method and device for embedding watermark information and method and device for extracting embedded watermark information
    • 用于嵌入水印信息的方法和装置以及用于提取嵌入水印信息的方法和装置
    • US20050105726A1
    • 2005-05-19
    • US10502622
    • 2003-02-25
    • Christian NeubauerJuergen HerreRalph KulessaFrank SiebenhaarWolfgang Spinnler
    • Christian NeubauerJuergen HerreRalph KulessaFrank SiebenhaarWolfgang Spinnler
    • G06T1/00H04N7/167
    • G06T1/0085G06T1/005G06T2201/0065
    • For embedding watermark information into an information signal including audio and/or video information, first of all a synchronization sequence with a plurality of synchronization sequence units and a data sequence with a plurality of data sequence units are provided, wherein between the data sequence and the synchronization sequence a time shift is present and wherein a degree of shifting depends on the watermark information. A combination means generates a combination sequence having a plurality of combination sequence units from the synchronization sequence and the data sequence shifted with regard to the synchronization sequence, wherein the combination sequence units are derived from synchronization sequence units and shifted data sequence units. The combination sequence is combined with the information signal in order to embed the watermark information into the information signal. A watermark extractor receives a synchronization sequence correlation peak for every data sequence correlation peak associated with the same and therefore determines the watermark information on the basis of the time interval between the synchronization sequence correlation peak and the data sequence correlation peak in a secure and robust way. The concept is robust, provides a high data rate and is simultaneously flexible with regard to the weighting of synchronization energy and data energy and with regard to the robustness on the one hand and data rate on the other hand, respectively.
    • 为了将水印信息嵌入到包括音频和/或视频信息的信息信号中,首先提供具有多个同步序列单元的同步序列和具有多个数据序列单元的数据序列,其中在数据序列和 同步序列存在时移,其中移位程度取决于水印信息。 组合装置根据同步序列产生具有多个组合序列单元的组合序列和相对于同步序列移位的数据序列,其中组合序列单元从同步序列单元和移位数据序列单元导出。 将组合序列与信息信号组合,以将水印信息嵌入到信息信号中。 水印提取器接收与其相关联的每个数据序列相关峰值的同步序列相关峰值,因此以安全和鲁棒的方式基于同步序列相关峰值与数据序列相关峰值之间的时间间隔来确定水印信息 。 该概念是鲁棒的,提供高数据速率,并且在同步能量和数据能量的加权方面以及另一方面一方面的鲁棒性和数据速率方面同时是灵活的。
    • 7. 发明申请
    • Device and method for generating encrypted data, for decrypting encrypted data and for generating re-signed data
    • 用于生成加密数据的装置和方法,用于解密加密数据和生成重新签名的数据
    • US20050135613A1
    • 2005-06-23
    • US10985479
    • 2004-11-10
    • Karlheinz BrandenburgChristian NeubauerRalph KulessaFrank SiebenharrWolfgang Spinnler
    • Karlheinz BrandenburgChristian NeubauerRalph KulessaFrank SiebenharrWolfgang Spinnler
    • G06F21/00H04L9/00
    • G06F21/10G06F2221/0737G06F2221/2107
    • Devices and methods for generating encrypted data, for playing encrypted data and for re-signing originally signed encrypted data are based on the encrypted data, apart from the encrypted media information, to include the information required for decrypting the data and additionally a signature of who has generated the encrypted data. Thus the origin of the encrypted data can be traced back. In particular, passing on the encrypted data to a limited extent by the producer of the *encrypted data, for example to friends or acquaintances, is allowed, while only a mass reproduction of the encrypted data is considered as pirate copying. The pirate copier can, however, be found out with the help of the signature, wherein the signature is optionally protected by an embedded watermark signature. Because this is a concept wherein, when being used legally, only encrypted data occur, the unauthorized removal of the encryption is a statutory offence. The inventive concept makes possible finding the offender and at the same time considers ownerships of the operators with regard to a limited passing-on of media information, and thus has the potential of being accepted on the market.
    • 用于生成加密数据,用于播放加密数据和重新签署原始签名的加密数据的装置和方法基于加密数据,除了加密的媒体信息之外,还包括解密数据所需的信息,另外还包括谁的签名 已生成加密数据。 因此,可以追溯加密数据的来源。 特别地,允许由加密数据的制作者(例如,朋友或熟人)在有限程度上传递加密数据,而仅将加密数据的大规模再现视为盗版复制。 然而,在签名的帮助下,可以发现盗版复印机,其中签名可选地被嵌入的水印签名保护。 因为这是一个概念,其中当被合法使用时,仅发生加密的数据,未经授权的加密删除是法定的。 本发明的概念使得有可能发现犯罪者,同时考虑到运营商对媒体信息传递有限的所有权,因此具有被市场接受的潜力。