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    Optimization methods for the insertion, protection, and detection of digital watermarks in digital data
    25.
    发明授权
    Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 有权
    数字数据中插入，保护和检测数字水印的优化方法

    公开(公告)号：US08281140B2

    公开(公告)日：2012-10-02

    申请号：US12592331

    申请日：2009-11-23

    Applicant: Scott A. Moskowitz

    Inventor： Scott A. Moskowitz

    IPC: H04L9/00

    CPC classification number: G06T1/0028 ,  G06T2201/0064

    Abstract: Disclosed herein are methods and systems for encoding digital watermarks into content signals. Also disclosed are systems and methods for detecting and/or verifying digital watermarks in content signals. According to one embodiment, a system for encoding of digital watermark information includes: a window identifier for identifying a sample window in the signal; an interval calculator for determining a quantization interval of the sample window; and a sampler for normalizing the sample window to provide normalized samples. According to another embodiment, a system for pre-analyzing a digital signal for encoding at least one digital watermark using a digital filter is disclosed. According to another embodiment, a method for pre-analyzing a digital signal for encoding digital watermarks comprises: (1) providing a digital signal; (2) providing a digital filter to be applied to the digital signal; and (3) identifying an area of the digital signal that will be affected by the digital filter based on at least one measurable difference between the digital signal and a counterpart of the digital signal selected from the group consisting of the digital signal as transmitted, the digital signal as stored in a medium, and the digital signal as played backed. According to another embodiment, a method for encoding a watermark in a content signal includes the steps of (1) splitting a watermark bit stream; and (2) encoding at least half of the watermark bit stream in the content signal using inverted instances of the watermark bit stream. Other methods and systems for encoding/decoding digital watermarks are also disclosed.

    Abstract translation: 这里公开了将数字水印编码成内容信号的方法和系统。 还公开了用于在内容信号中检测和/或验证数字水印的系统和方法。 根据一个实施例，一种用于编码数字水印信息的系统包括：用于识别信号中的采样窗口的窗口标识符; 用于确定样本窗口的量化间隔的间隔计算器; 以及用于归一化样本窗口以提供归一化样本的采样器。 根据另一实施例，公开了一种用于使用数字滤波器预分析用于对至少一个数字水印进行编码的数字信号的系统。 根据另一实施例，一种用于预分解用于对数字水印进行编码的数字信号的方法包括：（1）提供数字信号; （2）提供要应用于数字信号的数字滤波器; 以及（3）基于数字信号与从由发送的数字信号组成的组中选择的数字信号的对应物之间的至少一个可测量的差异来识别将受数字滤波器影响的数字信号的区域， 存储在介质中的数字信号，以及播放的数字信号。 根据另一实施例，一种用于在内容信号中编码水印的方法包括以下步骤：（1）分割水印比特流; 和（2）使用水印比特流的反转实例来编码内容信号中的水印比特流的至少一半。 还公开了用于对数字水印进行编码/解码的其它方法和系统。

    Utilizing data reduction in steganographic and cryptographic system
    26.
    发明授权
    Utilizing data reduction in steganographic and cryptographic system 有权
    利用隐匿和加密系统中的数据减少

    公开(公告)号：US08160249B2

    公开(公告)日：2012-04-17

    申请号：US12655036

    申请日：2009-12-22

    Applicant: Scott A. Moskowitz ,  Mike W. Berry

    Inventor： Scott A. Moskowitz ,  Mike W. Berry

    IPC: H04N7/167

    CPC classification number: H04L9/16 ,  G06F21/10 ,  G06F21/16 ,  G06F2221/0737 ,  G06T1/0021 ,  H04L2209/046 ,  H04L2209/608 ,  H04N1/32144 ,  H04N1/32272

    Abstract: The present invention relates to methods for protecting a data signal using the following techniques: applying a data reduction technique to reduce the data signal into a reduced data signal; subtracting the reduced data signal from the data signal to produce a remainder signal; embedding a first watermark into the reduced data signal to produce a watermarked, reduced data signal; and adding the watermarked, reduced data signal to the remainder signal to produce an output signal. A second watermark may be embedded into the remainder signal before the final addition step. Further, cryptographic techniques may be used to encrypt the reduced data signals and to encrypt the remainder signals before the final addition step. The present invention also relates to a system for securing a data signal including: computer devices for applying a data reduction technique to reduce the data signal into a reduced data signal; means to subtract the reduced data signal from the data signal to produce a remainder signal; means to apply a first cryptographic technique to encrypt the reduced data signal to produce an encrypted, reduced data signal; means to apply a second cryptographic technique to encrypt the remainder signal to produce an encrypted remainder signal; and means to add the encrypted, reduced data signal to the encrypted remainder signal to produce an output signal.

    Abstract translation: 本发明涉及使用以下技术来保护数据信号的方法：应用数据缩减技术将数据信号减少为减少的数据信号; 从数据信号中减去减少的数据信号以产生余数信号; 将第一水印嵌入到缩减数据信号中以产生加水印的减小的数据信号; 并将加水印的减小的数据信号加到余数信号以产生输出信号。 第二水印可以在最后加法步骤之前被嵌入剩余信号中。 此外，加密技术可以用于加密缩减的数据信号，并且在最终加法步骤之前加密剩余信号。 本发明还涉及一种用于保护数据信号的系统，包括：用于应用数据缩减技术的计算机设备，以将数据信号减少为减少的数据信号; 用于从数据信号中减去数据信号以产生余数信号的装置; 用于应用第一密码技术来加密所述缩减的数据信号以产生经加密的减少的数据信号的装置; 用于应用第二密码技术来加密余数信号以产生加密余数信号的装置; 以及用于将经加密的缩减数据信号加到加密余数信号以产生输出信号的装置。

    Optimization methods for the insertion, protection, and detection of digital watermarks in digital data
    27.
    发明授权
    Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 有权
    数字数据中插入，保护和检测数字水印的优化方法

    公开(公告)号：US07987371B2

    公开(公告)日：2011-07-26

    申请号：US12217834

    申请日：2008-07-09

    Applicant: Scott A. Moskowitz

    Inventor： Scott A. Moskowitz

    IPC: G06K9/30

    CPC classification number: H04N21/8358 ,  H04L9/3263 ,  H04L2209/34 ,  H04L2209/603 ,  H04L2209/608 ,  H04N21/23892

    Abstract: Disclosed herein are methods and systems for encoding digital watermarks into content signals. Also disclosed are systems and methods for detecting and/or verifying digital watermarks in content signals. According to one embodiment, a system for encoding of digital watermark information includes: a window identifier for identifying a sample window in the signal; an interval calculator for determining a quantization interval of the sample window; and a sampler for normalizing the sample window to provide normalized samples. According to another embodiment, a system for pre-analyzing a digital signal for encoding at least one digital watermark using a digital filter is disclosed. According to another embodiment, a method for pre-analyzing a digital signal for encoding digital watermarks comprises: (1) providing a digital signal; (2) providing a digital filter to be applied to the digital signal; and (3) identifying an area of the digital signal that will be affected by the digital filter based on at least one measurable difference between the digital signal and a counterpart of the digital signal selected from the group consisting of the digital signal as transmitted, the digital signal as stored in a medium, and the digital signal as played backed. According to another embodiment, a method for encoding a watermark in a content signal includes the steps of (1) splitting a watermark bit stream; and (2) encoding at least half of the watermark bit stream in the content signal using inverted instances of the watermark bit stream. Other methods and systems for encoding/decoding digital watermarks are also disclosed.

    Abstract translation: 这里公开了将数字水印编码成内容信号的方法和系统。 还公开了用于在内容信号中检测和/或验证数字水印的系统和方法。 根据一个实施例，一种用于编码数字水印信息的系统包括：用于识别信号中的采样窗口的窗口标识符; 用于确定样本窗口的量化间隔的间隔计算器; 以及用于归一化样本窗口以提供归一化样本的采样器。 根据另一实施例，公开了一种用于使用数字滤波器预分析用于对至少一个数字水印进行编码的数字信号的系统。 根据另一实施例，一种用于预分解用于对数字水印进行编码的数字信号的方法包括：（1）提供数字信号; （2）提供要应用于数字信号的数字滤波器; 以及（3）基于数字信号与从由发送的数字信号组成的组中选择的数字信号的对应物之间的至少一个可测量的差异来识别将受数字滤波器影响的数字信号的区域， 存储在介质中的数字信号，以及播放的数字信号。 根据另一实施例，一种用于在内容信号中编码水印的方法包括以下步骤：（1）分割水印比特流; 和（2）使用水印比特流的反转实例来编码内容信号中的水印比特流的至少一半。 还公开了用于对数字水印进行编码/解码的其它方法和系统。

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