Optimization methods for the insertion, protection, and detection of digital watermarks in digital data
    52.
    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:US07822197B2

    公开(公告)日:2010-10-26

    申请号:US11899662

    申请日:2007-09-07

    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。

    Linear predictive coding implementation of digital watermarks
    53.
    发明授权
    Linear predictive coding implementation of digital watermarks 失效
    数字水印的线性预测编码实现

    公开(公告)号:US07730317B2

    公开(公告)日:2010-06-01

    申请号:US11592079

    申请日:2006-11-02

    Abstract: Z-transform calculations may be used to encode (and/or decode) carrier signal independent data (e.g., digital watermarks) to a digital sample stream. Deterministic and non-deterministic components of a digital sample stream signal may be analyzed for the purposes of encoding carrier signal independent data to the digital sample stream. The carrier signal independent data may be encoded in a manner such that it is restricted or concentrated primarily in the non-deterministic signal components of the carrier signal. The signal components can include a discrete series of digital samples and/or a discreet series of carrier frequency sub-bands of the carrier signal. Z-transform calculations may be used to measure a desirability of particular locations and a sample stream in which to encode the carrier signal independent data.

    Abstract translation: Z变换计算可用于将载波信号无关数据(例如,数字水印)编码(和/或解码)到数字样本流。 可以分析数字样本流信号的确定性和非确定性分量,用于将载波信号无关数据编码到数字样本流。 载波信号独立数据可以以这样的方式进行编码,使得它主要被限制或集中在载波信号的非确定性信号分量中。 信号分量可以包括载波信号的离散系列数字样本和/或离散系列的载波频率子带。 Z变换计算可用于测量特定位置的可取性以及其中编码载波信号独立数据的样本流。

    Optimization methods for the insertion, protection, and detection of digital watermarks in digital data

    公开(公告)号:US20100077220A1

    公开(公告)日:2010-03-25

    申请号:US12592331

    申请日:2009-11-23

    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.

    Optimization methods for the insertion, protection, and detection of digital watermarks in digital data

    公开(公告)号:US07647502B2

    公开(公告)日:2010-01-12

    申请号:US11599964

    申请日:2006-11-15

    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.

    Systems and methods for permitting open access to data objects and for securing data within the data objects
    57.
    发明授权
    Systems and methods for permitting open access to data objects and for securing data within the data objects 失效
    允许对数据对象的开放访问和用于保护数据对象内的数据的系统和方法

    公开(公告)号:US07532725B2

    公开(公告)日:2009-05-12

    申请号:US11647861

    申请日:2006-12-29

    Abstract: A system and methods for permitting open access to data objects and for securing data within the data objects is disclosed. According to one embodiment of the present invention, a method for securing a data object is disclosed. According to one embodiment of the present invention, a method for securing a data object is disclosed. The method includes the steps of (1) providing a data object comprising digital data and file format information; (2) embedding independent data into a data object; and (3) scrambling the data object to degrade the data object to a predetermined signal quality level. The steps of embedding and scrambling may be performed until a predetermined condition is met. The method may also include the steps of descrambling the data object to upgrade the data object to a predetermined signal quality level, and decoding the embedded independent data. The additional steps of descrambling and decoding may be performed until a predetermined condition is met. The predetermined condition may include, for example, reaching a desired signal quality of the data object.

    Abstract translation: 公开了允许对数据对象的开放访问和用于保护数据对象内的数据的系统和方法。 根据本发明的一个实施例,公开了一种用于保护数据对象的方法。 根据本发明的一个实施例,公开了一种用于保护数据对象的方法。 该方法包括以下步骤:(1)提供包括数字数据和文件格式信息的数据对象; (2)将独立数据嵌入到数据对象中; 和(3)对数据对象进行加扰,使数据对象降级到预定的信号质量水平。 可以执行嵌入和加扰的步骤,直到满足预定条件。 该方法还可以包括以下步骤:将数据对象解扰以将数据对象升级到预定的信号质量级别,以及对嵌入的独立数据进行解码。 可以执行解扰和解码的附加步骤,直到满足预定条件。 预定条件可以包括例如达到数据对象的期望信号质量。

    Optimization methods for the insertion, protection, and detection of digital watermarks in digital data
    58.
    发明申请
    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:US20090037740A1

    公开(公告)日:2009-02-05

    申请号:US12217834

    申请日:2008-07-09

    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。

    Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data
    59.
    发明授权
    Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 失效
    数字化数据中插入,保护和检测数字水印的优化方法

    公开(公告)号:US07457962B2

    公开(公告)日:2008-11-25

    申请号:US11497822

    申请日:2006-08-02

    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。

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