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    WATERMARK-BASED METADATA ACQUISITION AND PROCESSING
    51.
    发明申请
    WATERMARK-BASED METADATA ACQUISITION AND PROCESSING 有权

    公开(公告)号：US20220377434A1

    公开(公告)日：2022-11-24

    申请号：US17702728

    申请日：2022-03-23

    Applicant: Verance Corporation

    Inventor： Jian Zhao ,  Joseph M. Winograd ,  Rade Petrovic ,  Julia Ann Kenyon

    IPC: H04N21/8358 ,  H04N21/434 ,  H04N21/643 ,  H04N21/84 ,  H04N21/845 ,  H04N21/858

    Abstract: The disclosed embodiments relate to media devices implementing new television standards, such as ATSC 3.0, which includes audio/video essence and metadata/signaling. The disclosed embodiments include techniques for creating a signaling file that contains metadata and signaling data about the broadcast service being presented. The signaling file may include URLs that can be used to access signaling information liar supplementary signaling and content. The signaling also contains a mapping between a first timing system and a second timing system. The, first timing system may comprise the watermark timeline represented in interval s and the second timing system may comprise a DASH presentation time.

    Device authentication in collaborative content screening
    52.
    发明授权
    Device authentication in collaborative content screening 有权

    公开(公告)号：US11468149B2

    公开(公告)日：2022-10-11

    申请号：US16387519

    申请日：2019-04-17

    Applicant: Verance Corporation

    Inventor： Joseph M. Winograd ,  Jian Zhao ,  Michael George Kiefer

    IPC: G06F21/44 ,  G06F21/10 ,  H04L9/32

    Abstract: Content screening operations, which can include watermark extraction and the application of content usage enforcement actions, may be organized such that some or all of the operations can be conducted by different devices that are connected via connectors such as HDMI (High-Definition Multimedia Interface (HDMI), analog composite video, DVI (Digital Visual Interface), SDI (Serial Digital Interface), DisplayPort, or networked via Ethernet or wireless. Authentication and encryption methods are disclosed that can be used to establish the trust and secure communication between devices that conduct collaborative content screening. Delegation architecture may be based on ascertained screening capabilities of the sink device wherein the source device verifies that the sink device is capable and trusted to perform partial or whole screening operations delegated by the source. Alternatively, delegation architecture may be based on ascertained screening capabilities of the source device wherein the sink device verifies that the source device is capable and trusted to provide correct content credential and content use policy (“content credential”) that is needed for the sink device to determine whether content screening should be performed, and if yes, what content screening operations should be performed.

    MULTIMEDIA CONTENT TAGS
    54.
    发明申请
    MULTIMEDIA CONTENT TAGS 有权

    公开(公告)号：US20210382929A1

    公开(公告)日：2021-12-09

    申请号：US17353662

    申请日：2021-06-21

    Applicant: Verance Corporation

    Inventor： Jian Zhao ,  Joseph M. Winograd

    IPC: G06F16/41 ,  H04N21/8547 ,  H04N21/81 ,  H04N21/845 ,  H04N21/41 ,  G06F16/93

    Abstract: Methods, devices and computer program products facilitate enhanced use and interaction with a multimedia content through the use of tags. While a content is being presented by a device, a content identifier and at least one time code associated with one or more content segments are obtained. One or both of the content identifier and the time code can be obtained from watermarks that are embedded in the content, or through computation of fingerprints that are subsequently matched against a database of stored fingerprints and metadata, The content identifier and the at least one time code are transmitted to a tag server. In response, tag information for the one or more content segments is received and one or more tags are presented to a user. The tags are persistently associated with temporal locations of the content segments.

    WATERMARK-BASED DATA RECOVERY FOR CONTENT WITH MULTIPLE ALTERNATIVE COMPONENTS
    55.
    发明申请
    WATERMARK-BASED DATA RECOVERY FOR CONTENT WITH MULTIPLE ALTERNATIVE COMPONENTS 有权

    公开(公告)号：US20210058681A1

    公开(公告)日：2021-02-25

    申请号：US16680146

    申请日：2019-11-11

    Applicant: Verance Corporation

    Inventor： Joseph M. Winograd

    IPC: H04N21/8358 ,  H04N21/2365 ,  H04N21/2389 ,  H04N21/81 ,  H04N21/8541 ,  H04N21/218

    Abstract: The disclosed embodiments relate to methods, devices and computer program products that enable watermark-based metadata recovery for content with multiple alternative components. The content can, for example, be included in broadcast television services which include multiple alternative audio and video components, only a subset of which may be presented by a given receiver at a given time. The disclosed techniques, among other features, enable broadcasters to deliver different services to different customers by using different watermarks into the feeds they provide to multichannel video program distributors (MVPDs). For instance, coincident audio and video components are embedded with different watermark payloads.

    Watermark based content recognition improvements
    57.
    发明授权
    Watermark based content recognition improvements 有权

    公开(公告)号：US10257567B2

    公开(公告)日：2019-04-09

    申请号：US15570238

    申请日：2016-04-14

    Applicant: Verance Corporation

    Inventor： Rade Petrovic ,  Joseph M. Winograd

    IPC: H04N21/44 ,  G06F21/16 ,  H04N21/8352 ,  H04N21/8358 ,  H04N21/845 ,  G06T1/00

    Abstract: Method, devices, systems and computer program products are described that improve speed and accuracy of watermark detection from multimedia content, and allow faster and better content recognition. One technique for improving detection of boundaries of an embedded multimedia content segment includes detecting a synchronization header and a full watermark from the multimedia content, constructing a predicted watermark segment that is positioned at a predicted distance from the synchronization header, and comparing the group of candidate watermark symbols obtained from the multimedia content to the first predicted watermark segment to obtain a match. The disclosed techniques enable extraction of watermarks from short content segments, and can utilize a shortened payload design to establish media time during content usage.

    INTERACTIVE CONTENT ACQUISITION USING EMBEDDED CODES
    58.
    发明申请
    INTERACTIVE CONTENT ACQUISITION USING EMBEDDED CODES 审中-公开

    公开(公告)号：US20190090033A1

    公开(公告)日：2019-03-21

    申请号：US16166667

    申请日：2018-10-22

    Applicant: Verance Corporation

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

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

    Abstract: Methods and devices are provided to facilitate acquisition of information associated with a multimedia content through embedded watermarks. One such method includes obtaining a server code for embedding into a content. The server code identifies a particular domain name registered to a registrant entity and provides a mapping to an Internet address of a metadata server. Upon receiving an indication that a trigger event is associated with a particular segment of the content, a first watermark payload is formed and embedded in the content. The watermark payload includes the server code, an interval code and a first trigger value. The interval code identifies the particular content segment and the first trigger value indicates that additional information associated with the particular segment is. Detection of the first trigger value from a subsequently distributed content enables a query to the metadata server for acquisition of metadata.

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