Exchange mechanisms for digital information packages with bandwidth securitization, multichannel digital watermarks, and key management
    1.
    发明授权
    Exchange mechanisms for digital information packages with bandwidth securitization, multichannel digital watermarks, and key management 失效
    具有带宽证券化,多通道数字水印和密钥管理的数字信息包交换机制

    公开(公告)号:US08774216B2

    公开(公告)日:2014-07-08

    申请号:US12892900

    申请日:2010-09-28

    申请人: Scott Moskowitz

    发明人: Scott Moskowitz

    IPC分类号: H04J3/16 H04N1/32 H04N21/8358

    摘要: Responsibility can be established for specific copies or instances of copies of digitized multimedia content using digital watermarks. Management and distribution of digital watermark keys (e.g., private, semiprivate and public) and the extension of information associated with such keys is implemented to create a mechanism for the securitization of multimedia titles to which the keys apply. Bandwidth rights can be created to provide for a distributed model for digital distribution of content which combines the security of a digital watermark with efficient barter mechanisms for handling the actual delivery of digital goods. Distributed keys better define rights that are traded between transacting parties in exchanging information or content. More than one party can cooperate in adding distinguished watermarks at various stages of distribution without destroying watermarks previously placed in the content. Additionally, the amount of information which any one party must divulge to another party can be minimized, and “downstream” parties can be prevented from compromising or otherwise gaining control of watermarks embedded by “upstream” parties.

    摘要翻译: 可以使用数字水印确定数字化多媒体内容的特定副本或副本的责任。 执行数字水印密钥(例如私有,半私人和公共)的管理和分发以及与这些密钥相关联的信息的扩展,以创建用于密钥应用的多媒体标题证券化的机制。 可以创建带宽权限,以提供用于将数字水印的安全性与用于处理数字商品的实际交付的有效易货机制相结合的内容的数字分发的分布式模型。 分布式密钥更好地定义交易方在交换信息或内容时交易的权利。 不止一方可以在分配的各个阶段加入不同水印,而不会破坏先前放置在内容中的水印。 另外,任何一方必须泄露给另一方的信息量都可以最小化,并且可以防止“下游”各方妥协或以其他方式获得“上游”方面嵌入的水印的控制。

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

    公开(公告)号:US20100077219A1

    公开(公告)日:2010-03-25

    申请号:US12590553

    申请日:2009-11-10

    IPC分类号: H04L9/32

    CPC分类号: G06T1/0028 G06T2201/0064

    摘要: 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.

    Linear predictive coding implementation of digital watermarks
    7.
    发明申请
    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:US20070079131A1

    公开(公告)日:2007-04-05

    申请号:US11592079

    申请日:2006-11-02

    IPC分类号: H04L9/00

    摘要: 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.

    摘要翻译: 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采样流。

    Linear predictive coding implementation of digital watermarks
    10.
    发明授权
    Linear predictive coding implementation of digital watermarks 有权
    数字水印的线性预测编码实现

    公开(公告)号:US08225099B2

    公开(公告)日:2012-07-17

    申请号:US12798959

    申请日:2010-04-14

    IPC分类号: G06F21/00

    摘要: 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.

    摘要翻译: 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采样流。