Linear predictive coding implementation of digital watermarks
    1.
    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。

    Hierarchically arranged knowledge domains
    3.
    发明授权
    Hierarchically arranged knowledge domains 有权
    分层布置的知识领域

    公开(公告)号:US06247007B1

    公开(公告)日:2001-06-12

    申请号:US09255091

    申请日:1999-02-22

    IPC分类号: G06F1700

    摘要: An improved expert system is disclosed wherein rules are organized into domains and subdomains, and objects are passed to rules to be operated upon. Prior to operating upon any object, the domain determines if the object is of the type which is to be operated upon by rules within the rule domain. If not, the rules are not applied to the object.

    摘要翻译: 公开了一种改进的专家系统,其中规则被组织成域和子域,并且对象被传递到要被操作的规则。 在对任何对象进行操作之前,域确定对象是否由规则域内的规则操作。 如果没有,则规则不会应用于对象。

    OPTIMIZATION METHODS FOR THE INSERTION, PROTECTION, AND DETECTION OF DIGITAL WATERMARKS IN DIGITIZED DATA
    7.
    发明申请
    OPTIMIZATION METHODS FOR THE INSERTION, PROTECTION, AND DETECTION OF DIGITAL WATERMARKS IN DIGITIZED DATA 有权
    数字水印数据的插入,保护和检测优化方法

    公开(公告)号:US20110305365A1

    公开(公告)日:2011-12-15

    申请号:US13212264

    申请日:2011-08-18

    IPC分类号: G06K9/00

    摘要: The implementations of digital watermarks can be optimally suited to particular transmission, distribution and storage mediums given the nature of digitally-sampled audio, video and other multimedia works. Watermark application parameters can be adapted to the individual characteristics of a given digital sample stream. Watermark information can be either carried in individual samples or in relationships between multiple samples, such as in a waveform shape. More optimal models may be obtained to design watermark systems that are tamper-resistant given the number and breadth of existent digitized sample options with different frequency and time components. The highest quality of a given content signal may be maintained as it is mastered, with the watermark suitably hidden, taking into account usage of digital filters and error correction. The quality of the underlying content signals can be used to identify and highlight advantageous locations for the insertion of digital watermarks. The watermark is integrated as closely as possible to the content signal, at a maximum level to force degradation of the content signal when attempts are made to remove the watermarks.

    摘要翻译: 考虑到数字采样音频,视频和其他多媒体作品的性质,数字水印的实现可以最适合于特定的传输,分发和存储介质。 水印应用参数可以适应给定数字样本流的各个特征。 水印信息可以在单个样本中携带,也可以在多个样本之间的关系中携带,例如波形形状。 鉴于具有不同频率和时间分量的现有数字化样本选项的数量和广度,可以获得更好的模型来设计防篡改的水印系统。 考虑到数字滤波器的使用和误差校正,可以保持给定内容信号的最高质量,因为它被掌握,水印被适当地隐藏。 底层内容信号的质量可用于识别和突出显示用于插入数字水印的有利位置。 尽可能地将内容信号尽可能地集成到内容信号上,以在尝试去除水印时强制内容信号的劣化。