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    ACTIVE DATA HIDING FOR SECURE ELECTRONIC MEDIA DISTRIBUTION
    41.
    发明申请
    ACTIVE DATA HIDING FOR SECURE ELECTRONIC MEDIA DISTRIBUTION 审中-公开
    主动数据保护用于安全电子媒体分发

    公开(公告)号：WO01031838A1

    公开(公告)日：2001-05-03

    申请号：PCT/US2000/029108

    申请日：2000-10-19

    IPC: G06F21/22 ,  G11B20/00 ,  H04L29/06 ,  H04L29/08 ,  H04N7/08 ,  H04N7/081 ,  H04N7/26 ,  H04N21/235 ,  H04N21/2389 ,  H04N21/435 ,  H04N21/6334 ,  H04N21/81 ,  H04N21/8352 ,  H04L9/00

    CPC classification number: H04L63/0428 ,  G11B20/00086 ,  H04L67/34 ,  H04L69/329 ,  H04L2463/101 ,  H04N21/235 ,  H04N21/23892 ,  H04N21/435 ,  H04N21/63345 ,  H04N21/8166 ,  H04N21/8352

    Abstract: A method is provided for distributing multimedia content in an electronic media distribution system. The method comprises the steps of: (a) providing active hidden data (24), where the active hidden data comprises a plurality of executable machine instructions; (b) embedding active hidden data into the host data stream (26, 30), thereby forming an embedded data stream; (c) transmitting the embedded data stream from a content provider device (12) via distribution channel (14) to a player device (16); (d) extracting the active hidden data from the embedded data stream (44) on the player device; and (e) executing the active hidden data (48) on the player device.

    Abstract translation: 提供一种用于在电子媒体分发系统中分发多媒体内容的方法。 该方法包括以下步骤：（a）提供主动隐藏数据（24），其中主动隐藏数据包括多个可执行机器指令; （b）将主动隐藏数据嵌入主机数据流（26,30）中，从而形成嵌入数据流; （c）经由分发信道（14）将嵌入的数据流从内容提供者设备（12）发送到播放器设备（16）; （d）从播放器装置上的嵌入式数据流（44）提取主动隐藏数据; 和（e）在所述玩家设备上执行所述主动隐藏数据（48）。

    METHOD AND SYSTEM FOR EMBEDDING EXTRA INFORMATION, METHOD AND SYSTEM FOR DECODING
    42.
    发明申请
    METHOD AND SYSTEM FOR EMBEDDING EXTRA INFORMATION, METHOD AND SYSTEM FOR DECODING 审中-公开
    用于嵌入额外信息的方法和系统，用于解码的方法和系统

    公开(公告)号：WO01028230A1

    公开(公告)日：2001-04-19

    申请号：PCT/EP2000/010001

    申请日：2000-10-10

    IPC: G06T1/00 ,  G11B20/10 ,  H04N1/32 ,  H04N5/91 ,  H04N5/913 ,  H04N5/92 ,  H04N7/24

    CPC classification number: G06T1/0085 ,  H04N1/32144 ,  H04N5/913 ,  H04N21/23892 ,  H04N2005/91335

    Abstract: The invention relates to a method and a system (100) for embedding extra information in an input signal (101). Groups of one or more candidate frames in the input signal (101) are associated with respective portions of the extra information. Each group is edited in dependence on its associated respective portion, for example by deleting it to represent a zero bit in the respective portion and duplicating it to represent a one. The invention further relates to a method and system (200) for decoding extra information embedded in an input signal (201) by comparing it with an original input signal (204) and decoding the differences into the extra information. For example, missing groups of candidate frames are decoded into a zero bit, and duplicated candidate frames are decoded into a one bit.

    Abstract translation: 本发明涉及一种用于在输入信号（101）中嵌入额外信息的方法和系统（100）。 输入信号（101）中的一个或多个候选帧的组与附加信息的相应部分相关联。 每个组根据其相关的相应部分进行编辑，例如通过删除它来表示相应部分中的零比特并将其复制以表示一个。 本发明还涉及一种通过将嵌入在输入信号（201）中的附加信息与原始输入信号（204）进行比较并将差异解码为额外信息来解码附加信息的方法和系统（200）。 例如，丢失的候选帧组被解码成零位，并且复制的候选帧被解码为一位。

    DATA HIDING METHOD AND DATA EXTRACTING METHOD
    45.
    发明申请
    DATA HIDING METHOD AND DATA EXTRACTING METHOD 审中-公开
    数据隐藏方法和数据提取方法

    公开(公告)号：WO1998017061A1

    公开(公告)日：1998-04-23

    申请号：PCT/JP1997000396

    申请日：1997-02-13

    Applicant: IBM JAPAN LTD. ,  INTERNATIONAL BUSINESS MACHINES CORPORATION

    Inventor： IBM JAPAN LTD. ,  INTERNATIONAL BUSINESS MACHINES CORPORATION ,  MORIMOTO, Norishige ,  MAEDA, Junji

    IPC: H04N07/08

    CPC classification number: G06T1/0085 ,  H04N19/00 ,  H04N19/467 ,  H04N21/23892 ,  H04N21/8358

    Abstract: A method of hiding message information in media information in a frequency space. A high resistance to removal and alteration of hidden message is given. Even when signal processing is executed by using a frequency filter, the hidden message information is continuously maintained effectively. The frequency spectra (f1 and f2) of the medium information (M) and message information (m) are found by frequency-converting the information (m) and the information (M) in order to hide the message information (m) in media information (M). Then an area containing a characteristic frequency component indicating the feature of the message information (m) in a real space is extracted from the frequency spectrum (f2) of the message information (m) as a basic area (B). Then a frequency spectrum (f3) is generated as intermediate information by making n copies of the basic area (B), dispersedly arranging the copies in the frequency space and making the other frequency components zero. Lastly, the message information (m) is hidden in the medium information (M) by executing operation based on the frequency spectrum (f3) and medium information (M).

    Abstract translation: 一种在频率空间中的媒体信息中隐藏消息信息的方法。 给出了高度的消除和改变隐藏信息的能力。 即使通过使用频率滤波器执行信号处理，也可以有效地连续地保持隐藏的信息信息。 介质信息（M）和消息信息（m）的频谱（f1和f2）通过对信息（m）和信息（M）进行频率转换以便在媒体中隐藏消息信息（m）来找到 信息（M）。 然后，从作为基本区域（B）的消息信息（m）的频谱（f2）中提取包含表示实际空间中的消息信息（m）的特征的特征频率分量的区域。 然后，通过使基本区域（B）的n个副本分散地布置在频率空间中的副本并使其他频率分量为零，生成频谱（f3）作为中间信息。 最后，通过执行基于频谱（f3）和媒体信息（M）的操作，将消息信息（m）隐藏在媒体信息（M）中。

    IN-CAMERA IMAGE MARKING AND AUTHENTICATION
    46.
    发明申请
    IN-CAMERA IMAGE MARKING AND AUTHENTICATION 审中-公开
    摄像机图像标记和认证

    公开(公告)号：WO1997038531A1

    公开(公告)日：1997-10-16

    申请号：PCT/US1997005532

    申请日：1997-04-03

    Applicant: OBSIDIAN IMAGING, INC.

    Inventor： OBSIDIAN IMAGING, INC. ,  STEINBERG, Eran

    IPC: H04N07/167

    CPC classification number: H04N1/32122 ,  G06T1/0028 ,  H04N1/32101 ,  H04N1/32128 ,  H04N1/32144 ,  H04N1/32256 ,  H04N1/32309 ,  H04N1/4413 ,  H04N1/444 ,  H04N1/4486 ,  H04N5/77 ,  H04N5/772 ,  H04N7/167 ,  H04N21/23892 ,  H04N21/8358 ,  H04N2101/00 ,  H04N2201/3233 ,  H04N2201/3236 ,  H04N2201/3274

    Abstract: A camera (10) with a built in microprocessor system (48) is programmed to receive an input password (72) and indicium from a host computer (12). The camera is configured to use the indicium in combination with a conversion formula to mark an original acquired image (Fig. 14) in a non-destructive manner to form modified image data (Fig. 5-7) and add the indicium to an image header. The camera also creates image authentication data for comparison with corresponding data of a questionable second image to determine if the second image is the same as or different from the original image. This process of marking and creating authentication data all occurs during acquisition and prior to any image data storage in a medium from which a person could subsequently access data. The camera takes the authentication data and stores it along with the marked image data in memory for subsequent transmission to the host computer.

    Abstract translation: 具有内置微处理器系统（48）的相机（10）被编程为从主机（12）接收输入密码（72）和标记。 相机被配置为使用与转换公式结合的标记以非破坏性方式标记原始获取的图像（图14）以形成修改的图像数据（图5-7）并将标记添加到图像 头。 相机还创建用于与可疑第二图像的相应数据进行比较的图像认证数据，以确定第二图像是否与原始图像相同或不同。 这种标记和创建认证数据的过程全部发生在获取过程中，并且在任何图像数据存储在一个人可以随后访问数据的介质中。 相机拍摄认证数据并将其与标记的图像数据一起存储在存储器中，以便随后传输到主机。

    SYSTEMS AND METHODS FOR INTERLEAVING VIDEO STREAMS ON A CLIENT DEVICE
    48.
    发明申请
    SYSTEMS AND METHODS FOR INTERLEAVING VIDEO STREAMS ON A CLIENT DEVICE 审中-公开
    用于在客户端设备上切换视频流的系统和方法

    公开(公告)号：WO2016105580A1

    公开(公告)日：2016-06-30

    申请号：PCT/US2015/000502

    申请日：2015-12-26

    Applicant: ACTIVEVIDEO NETWORKS, INC.

    Inventor： HOEBEN, Maarten

    IPC: H04N7/16

    CPC classification number: H04N21/23892 ,  H04N21/222 ,  H04N21/234 ,  H04N21/23406 ,  H04N21/234309 ,  H04N21/23614 ,  H04N21/4316 ,  H04N21/44 ,  H04N21/44004 ,  H04N21/4622 ,  H04N21/8455

    Abstract: A method of displaying video embedded in a user interface is performed at an electronic device such as a server system or client device. The method includes obtaining user-interface frames having a first placeholder for a first video window and obtaining source video frames having a first video stream in the first video window. The source video frames and the user- interface frames are interleaved to form an output video stream, which is provided for decoding and display.

    Abstract translation: 在诸如服务器系统或客户端设备的电子设备上执行显示嵌入在用户界面中的视频的方法。 该方法包括获得具有用于第一视频窗口的第一占位符的用户界面帧，并且获得在第一视频窗口中具有第一视频流的源视频帧。 源视频帧和用户界面帧被交织以形成用于解码和显示的输出视频流。

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