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    System and method for signaling security and database population
    2.
    发明授权
    System and method for signaling security and database population 有权

    公开(公告)号：US11368766B2

    公开(公告)日：2022-06-21

    申请号：US17011834

    申请日：2020-09-03

    Applicant: Verance Corporation

    Inventor： Jian Zhao ,  Joseph M. Winograd

    IPC: H04N21/8358 ,  G06T1/00 ,  H04N21/442 ,  H04N21/2389 ,  H04N21/437 ,  H04N21/435 ,  H04N21/858 ,  H04N21/81 ,  H04N21/84 ,  H04N21/845

    Abstract: The disclosed technology relates to methods, devices, systems and computer program products that facilitate access to metadata associated with a content. In one example, a method is described that includes receiving a multimedia content at a receiver device, extracting a watermark message from a first segment of the multimedia content, using at least a portion of the first watermark message to obtain additional information regarding the first segment of the multimedia content that includes the first watermark message, and associating and storing one or more values of the first watermark message and the additional information. The method further includes repeating the above operations to extract additional watermark messages from additional segments of the content and to form a table or array of items that can be accessed by specifying the one or more values of the first watermark message or one or more values of the additional watermark messages.

    WATERMARK-BASED DYNAMIC AD INSERTION
    3.
    发明申请
    WATERMARK-BASED DYNAMIC AD INSERTION 有权

    公开(公告)号：US20210076095A1

    公开(公告)日：2021-03-11

    申请号：US17006751

    申请日：2020-08-28

    Applicant: Verance Corporation

    Inventor： Joseph M. Winograd ,  Rade Petrovic ,  Jian Zhao ,  Patrick George Downes

    IPC: H04N21/44 ,  G10L19/018 ,  G06T1/00 ,  H04N21/81 ,  H04N21/8358

    Abstract: A watermark-based dynamic ad insertion (DAI) technique for presenting different users of content different advertisements based on the user's profile for content viewed on broadcast channels or in multichannel video programming distributor (MVPD) channels. A number of solutions issues with watermark-based DAI are presented. Interoperability is addressed by providing a multiplexing technique so that the DAI watermarks do not interfere with other watermarks, such as ATSC 3.0 watermarks. Reliability is addressed by providing a matched filtering technique. Security is addressed by providing a mutual authentication technique.

    Watermark detection and metadata delivery associated with a primary content
    4.
    发明授权
    Watermark detection and metadata delivery associated with a primary content 有权

    公开(公告)号：US09942602B2

    公开(公告)日：2018-04-10

    申请号：US14951302

    申请日：2015-11-24

    Applicant: Verance Corporation

    Inventor： Rade Petrovic ,  Jian Zhao ,  Joseph M. Winograd

    IPC: G06K9/00 ,  H04N21/435 ,  G10L19/018 ,  H04N21/4627 ,  H04N21/235 ,  H04N21/8358

    CPC classification number: H04N21/435 ,  G10L19/018 ,  H04N21/2353 ,  H04N21/4627 ,  H04N21/8358

    Abstract: Methods, devices, systems and computer program products enable enhances delivery and use of metadata that is associated a primary multimedia content. Watermarks that are detected by a watermark extractor produce an indication as to a state of the watermark detector as being in one of a an unmarked content state, a marked content state or a gap state, and cause the watermark extractor to transition from one state to another state based on event that are recognized based a failure or a success in detecting watermarks, an indication of low content activity and a previous state of the watermark extractor. The events and states associated with the watermark extractor further allows retrieval of new metadata associated with the primary content, use of an existing metadata in a modified manner or a change in presentation of a secondary content that is associated with the primary content.

    TRACING PIRACY OF LIVE BROADCASTS
    6.
    发明申请
    TRACING PIRACY OF LIVE BROADCASTS 审中-公开

    公开(公告)号：US20170251254A1

    公开(公告)日：2017-08-31

    申请号：US15506688

    申请日：2014-08-27

    Applicant: Verance Corporation

    Inventor： Jeffrey Bruce Lotspiech ,  Joseph M. Winograd

    IPC: H04N21/442 ,  H04L29/06 ,  H04N21/858 ,  H04N21/4627 ,  H04N21/8358 ,  H04L9/14 ,  H04N21/266

    CPC classification number: H04N21/44236 ,  G06F21/10 ,  H04L9/14 ,  H04L63/0428 ,  H04N21/26613 ,  H04N21/4627 ,  H04N21/8358 ,  H04N21/8586

    Abstract: Methods, devices, systems and computer program products enable generation, distribution and management of live broadcast content in such a way so as to allow identification of a pirate device or subscriber quickly and efficiently. Content is divided into content blocks, where each content block is divided into content units. Each of the content units is selectable from n variations of the content unit and a majority of ail possible combinations of content unit variations are permissible to be selected for production of the uniquely identifiable content. The content blocks, including the n variations of the content units, a media block key, and at least one device key is delivered to an authorized device. A particular pattern of content units is generated that identifies which of the n content unit variations must be used by the authorized device for constructing each content block.

    Interactive content acquisition using embedded codes
    7.
    发明授权
    Interactive content acquisition using embedded codes 有权
    使用嵌入式代码进行交互式内容采集

    公开(公告)号：US09596521B2

    公开(公告)日：2017-03-14

    申请号：US14656578

    申请日：2015-03-12

    Applicant: Verance Corporation

    Inventor： Joseph M. Winograd ,  Jian Zhao ,  Rade Petrovic

    IPC: H04N5/445 ,  H04N21/8358 ,  H04N21/442 ,  H04N21/435 ,  H04N21/44 ,  H04N21/2668 ,  H04N21/437 ,  H04N21/226 ,  G06F21/10

    CPC classification number: H04N21/8358 ,  G06F21/10 ,  H04N21/2265 ,  H04N21/2668 ,  H04N21/435 ,  H04N21/437 ,  H04N21/44008 ,  H04N21/44204

    Abstract: Methods and devices are provided to obtain associated information for a multimedia content. One such method includes receiving a content at a receiver device equipped with a watermark detector, performing watermark detection on the received content to extract a payload of an embedded watermark. The payload comprises a first field that includes a server identifier and a second field that includes an interval identifier associated with the server identifier. The first field provides a mapping to an Internet address accessible to retrieve metadata associated with content segments identified by the watermark payload. In this method, based on the detected watermark payload, a query is formed and transmitted to a server identified by the Internet address, and a response to the query is received from the server that includes metadata associated with the content.

    Abstract translation: 提供方法和设备以获得关于多媒体内容的相关信息。 一种这样的方法包括在配备有水印检测器的接收机设备处接收内容，对接收到的内容执行水印检测以提取嵌入水印的有效载荷。 有效载荷包括包括服务器标识符的第一字段和包括与服务器标识符相关联的间隔标识符的第二字段。 第一个字段提供可访问的互联网地址的映射，以检索与由水印有效负载标识的内容段相关联的元数据。 在该方法中，基于检测到的水印有效载荷，形成查询并将其发送到由因特网地址标识的服务器，并从服务器接收到包含与该内容相关联的元数据的对查询的响应。

    Stego key management
    9.
    发明授权
    Stego key management 有权
    Stego密钥管理

    公开(公告)号：US09485089B2

    公开(公告)日：2016-11-01

    申请号：US13923147

    申请日：2013-06-20

    Applicant: Verance Corporation

    Inventor： Rade Petrovic

    IPC: H04L9/08 ,  G09C5/00

    CPC classification number: H04L9/0819 ,  G09C5/00 ,  H04L2209/608

    Abstract: Systems, methods, devices and computer program products are provided that improve stego key management of watermarking systems and reduce the impact of leaked secrets related to watermark embedding and extraction operations. In the event that a watermark extractor is compromised and its extraction stego key is revealed, new extraction stego key sets are generated and assigned to a particular group of devices with similar security features. The new extraction stego key sets have significant overlap with one another, and can be retired once a device within the particular group of devices is compromised. The described techniques are complementary to other security enhancement practices, such as obfuscation and tamper resistant techniques, to strengthen the security of a watermarking system.

    Abstract translation: 提供了系统，方法，设备和计算机程序产品，提高了水印系统的隐私密钥管理，减少了与水印嵌入和提取操作相关的泄漏秘密的影响。 在水印提取器被泄露并且其提取隐藏密钥被泄露的情况下，生成新的提取隐藏密钥集并将其分配给具有相似安全特征的特定的一组设备。 新的提取隐藏密钥集彼此具有显着的重叠，并且一旦特定的设备组中的设备受到损害就可以退出。 所描述的技术与其他安全性增强实践（诸如混淆和防篡改技术）互补，以加强水印系统的安全性。

    SERVICE SIGNALING RECOVERY FOR MULTIMEDIA CONTENT USING EMBEDDED WATERMARKS
    10.
    发明申请
    SERVICE SIGNALING RECOVERY FOR MULTIMEDIA CONTENT USING EMBEDDED WATERMARKS 有权
    使用嵌入式水印的多媒体内容的服务信号恢复

    公开(公告)号：US20160182973A1

    公开(公告)日：2016-06-23

    申请号：US14975297

    申请日：2015-12-18

    Applicant: Verance Corporation

    Inventor： Joseph M. Winograd ,  Rade Petrovic ,  Jian Zhao

    IPC: H04N21/8358 ,  H04N21/4627 ,  H04N21/858 ,  H04N21/262 ,  G06F17/30 ,  H04N21/2389

    CPC classification number: H04N21/8358 ,  G06F17/3079 ,  H04N21/23892 ,  H04N21/262 ,  H04N21/26291 ,  H04N21/4622 ,  H04N21/4627 ,  H04N21/4722 ,  H04N21/8586

    Abstract: Methods, devices, systems and computer program products facilitate accessing metadata associated with a primary audio visual content. Upon reception of a primary content, one or more watermark messages are extracted from the primary content obtain a server code and an interval code. A query to a metadata server is initiated based on the information obtained from the extracted watermark messages. In response to the query, service recovery information is received that includes information identifying one or more timed events, where each timed event identifies an operation to be performed at a corresponding instance in time as the primary content is being presented by the receiver device. One or more operations identified the timed events are initiated at the corresponding instance(s) in time.

    Abstract translation: 方法，设备，系统和计算机程序产品便于访问与主要视听内容相关联的元数据。 在接收到主要内容时，从获得服务器代码和间隔代码的主要内容中提取一个或多个水印消息。 基于从所提取的水印消息获得的信息，发起对元数据服务器的查询。 响应于查询，接收到服务恢复信息，该信息包括标识一个或多个定时事件的信息，其中每个定时事件识别由接收机设备呈现主要内容时在相应的时间段执行的操作。 识别出定时事件的一个或多个操作在相应的实例被及时启动。

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