IMPROVEMENTS IN WATERMARK EXTRACTION EFFICIENCY
    1.
    发明申请
    IMPROVEMENTS IN WATERMARK EXTRACTION EFFICIENCY 审中-公开
    提高水分提取效率

    公开(公告)号:WO2012037422A3

    公开(公告)日:2012-06-14

    申请号:PCT/US2011051857

    申请日:2011-09-15

    Abstract: Methods, devices, and computer program products facilitate the application of content usage rules based on watermarks that are embedded in a content. The required content screening operations, including watermark extraction and the application of content usage enforcement actions, are organized as separate tasks. These tasks can be conducted at different times by different devices. The watermark extraction results are stored in a secure location and can be accessed by other devices at different times. These operations can be conducted by one or more trusted devices that reside in a home network. The trustworthiness of the devices can be ascertained during a device authentication process. Further, certain device capabilities can be ascertained either as part of the device authentication process, or through additional communications between the devices.

    Abstract translation: 方法,设备和计算机程序产品促进基于嵌入在内容中的水印的内容使用规则的应用。 所需的内容筛选操作(包括水印提取和内容使用执行操作的应用)被组织为单独的任务。 这些任务可以通过不同的设备在不同的时间进行。 水印提取结果存储在一个安全的位置,并可以在不同的时间由其他设备访问。 这些操作可以由驻留在家庭网络中的一个或多个可信设备执行。 设备的可信度可以在设备认证过程中确定。 此外,某些设备功能可以作为设备认证过程的一部分或通过设备之间的附加通信来确定。

    PRE-PROCESSED INFORMATION EMBEDDING SYSTEM
    2.
    发明申请
    PRE-PROCESSED INFORMATION EMBEDDING SYSTEM 审中-公开
    预处理信息嵌入系统

    公开(公告)号:WO2007005439A3

    公开(公告)日:2009-04-23

    申请号:PCT/US2006025090

    申请日:2006-06-27

    Abstract: Methods are provided for embedding auxiliary information in a host content signal which reduces the memory, bandwidth and computational complexity of the embedding and transmission systems, m one embodiment, a first reduced-scale signal is produced [figure 2, ref. Num "230"] which corresponds to the host content embedded with a first logical value [figure 2, ref. Num "220"] and producing a second reduced-scale signal [figure 2, ref. Num "235"] corresponding to the host content embedded with a second logical value [figure 2, ref. Num "225"]. A first set of segments from the first reduced-scale signal may be combined with a second set of segments from the second reduced-scale signal in a pre-defined manner to produce a composite embedded host content [figure 2, ref. Num "230"]. Thus the storage and transmission requirements of the watermarking system are reduced to having to deal with only the original content plus two reduced-scale signals.

    Abstract translation: 提供了用于将辅助信息嵌入到主机内容信号中的方法,其减少了嵌入和传输系统的存储器,带宽和计算复杂度。在一个实施例中,产生了第一缩小尺度信号。 数字“230”],其对应于嵌入第一逻辑值的主机内容[图2,参考文献 数字“220”]并产生第二缩小信号[图2,参考文献 对应于嵌入第二逻辑值的主机内容的数字“235”] [图2, 数字“225”]。 来自第一缩小尺度信号的第一组片段可以以预定义的方式与来自第二缩小尺度信号的第二组片段组合以产生复合嵌入式主机内容[图2,参考。 数字“230”]。 因此,水印系统的存储和传输要求被减少到必须仅处理原始内容加上两个缩小的信号。

    IMPROVEMENTS IN WATERMARK EXTRACTION EFFICIENCY
    5.
    发明申请
    IMPROVEMENTS IN WATERMARK EXTRACTION EFFICIENCY 审中-公开
    水景提取效率的改进

    公开(公告)号:WO2012037422A2

    公开(公告)日:2012-03-22

    申请号:PCT/US2011/051857

    申请日:2011-09-15

    Abstract: Methods, devices, and computer program products facilitate the application of content usage rules based on watermarks that are embedded in a content. The required content screening operations, including watermark extraction and the application of content usage enforcement actions, are organized as separate tasks. These tasks can be conducted at different times by different devices. The watermark extraction results are stored in a secure location and can be accessed by other devices at different times. These operations can be conducted by one or more trusted devices that reside in a home network. The trustworthiness of the devices can be ascertained during a device authentication process. Further, certain device capabilities can be ascertained either as part of the device authentication process, or through additional communications between the devices.

    Abstract translation: 方法,设备和计算机程序产品促进了基于嵌入在内容中的水印的内容使用规则的应用。 所需的内容筛选操作(包括水印提取和内容使用执行操作的应用)被组织为单独的任务。 这些任务可以通过不同的设备在不同的时间进行。 水印提取结果存储在安全位置,可以在不同时间被其他设备访问。 这些操作可以由位于家庭网络中的一个或多个可信设备进行。 可以在设备认证过程期间确定设备的可信赖性。 此外,可以将某些设备能力确定为设备认证过程的一部分,或通过设备之间的附加通信来确定。

    SYSTEM REACTIONS TO THE DETECTION OF EMBEDDED WATERMARKS IN A DIGITAL HOST CONTENT
    6.
    发明申请
    SYSTEM REACTIONS TO THE DETECTION OF EMBEDDED WATERMARKS IN A DIGITAL HOST CONTENT 审中-公开
    在数字主机内容中检测嵌入式水印的系统反应

    公开(公告)号:WO2006116394A3

    公开(公告)日:2009-04-16

    申请号:PCT/US2006015615

    申请日:2006-04-25

    Abstract: Methods for adapting the operation of a system in response to the detection of embedded watermarks from a digital host content are provided. A digital host content is received and examined for the presence of watermarks. In response to the detection of embedded watermarks and in accordance with the value, type, density or spacing of the detected watermarks, one or more system reactions may take place. These reactions include conditionally allowing the system to resume its normal operation, prohibiting the system from resuming its normal operation, degrading the quality of the digital host content or changing the security status of the digital host content. In response to the extraction of weak watermarks that do not meet the desired system requirements, the extraction operation may be modified or extended to enable the detection of strong watermarks.

    Abstract translation: 提供了用于响应于从数字主机内容检测嵌入的水印来适应系统的操作的方法。 收到数字主机内容并检查是否存在水印。 响应于嵌入水印的检测,并且根据检测到的水印的值,类型,密度或间隔,可能发生一个或多个系统反应。 这些反应包括有条件地允许系统恢复其正常操作,禁止系统恢复其正常操作,降低数字主机内容的质量或改变数字主机内容的安全状态。 响应于不满足期望的系统要求的弱水印的提取,可以修改或扩展提取操作以使得能够检测强水印。

    REMOTE CONTROL SIGNALING USING AUDIO WATERMARKS
    7.
    发明申请
    REMOTE CONTROL SIGNALING USING AUDIO WATERMARKS 审中-公开
    使用音频水印遥控信号

    公开(公告)号:WO0161987A3

    公开(公告)日:2002-01-24

    申请号:PCT/US0140013

    申请日:2001-02-01

    CPC classification number: G08C23/02 G06F7/00 G06Q30/0264 G10L19/018 H04B11/00

    Abstract: A system for using a watermark embedded in an audio signal to remotely control a device (290). Various devices such as toys, computers, and appliances, equipped with an appropriate detector (292), detect the hidden signals, which can trigger an action, or change a state of the device. The watermarks can be used with a "time gate" device, where detection of the watermark opens a time interval within which a user is allowed to perform an action, such as pressing a button, typing in an answer, turning a key in a lock, etc. To prevent fraudulent activation of a time gate, the time gate device can be configured to react only to watermarks coming from live broadcasts, and not from replays from tapes or other storage devices. In another feature, robustness of the watermark is improved, e.g., for acoustic propagation channels, by shifting the detection time of the watermark based on a measured bit error count of the watermark. Furthermore, the watermark may be inserted before the desired action along with corresponding offset information if the audio signal is not suitable at the time of the action.

    Abstract translation: 一种用于使用嵌入在音频信号中的水印远程控制设备的系统(290)。 配备有适当的检测器(292)的诸如玩具,计算机和电器的各种装置检测可触发动作的隐藏信号或改变装置的状态。 水印可以与“时间门”设备一起使用,其中水印的检测打开用户被允许执行动作的时间间隔,诸如按下按钮,输入答案,将键转动到锁定中 等等。为了防止时间门的欺骗性激活,时间门装置可以被配置为仅响应来自实时广播的水印,而不是来自磁带或其他存储设备的重放。 在另一个特征中,通过基于水印的测量比特误差计数来移动水印的检测时间,改善了水印的鲁棒性,例如对于声传播信道。 此外,如果音频信号在动作时不适合,则可以在期望的动作之前插入水印以及对应的偏移信息。

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