中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

68 records (took 0.031 seconds)

    WATERMARK-BASED METADATA ACQUISITION AND PROCESSING
    41.
    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
    42.
    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
    44.
    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.

    INTERACTIVE CONTENT ACQUISITION USING EMBEDDED CODES
    46.
    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.

    CONTENT SYNCHRONIZATION USING WATERMARK TIMECODES
    50.
    发明申请
    CONTENT SYNCHRONIZATION USING WATERMARK TIMECODES 审中-公开
    使用水印时序的内容同步

    公开(公告)号：US20160057317A1

    公开(公告)日：2016-02-25

    申请号：US14831752

    申请日：2015-08-20

    Applicant: Verance Corporation

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

    IPC: H04N5/08 ,  H04N19/467 ,  G06K9/00 ,  G06T1/00

    CPC classification number: G06T1/0028 ,  G06F21/16 ,  G06K9/00744 ,  G06T1/005 ,  G06T1/0085 ,  G06T2201/005 ,  G06T2201/0065 ,  H04N5/08 ,  H04N19/467 ,  H04N21/00 ,  H04N21/4307 ,  H04N21/4627 ,  H04N21/8358

    Abstract: Methods, devices and computer program products allow improved synchronization among multiple contents. One disclosed method includes receiving a first and a second content and performing watermark extraction to recover a first timecode as part of a watermark embedded into a segment of that content. The first timecode conforms to a first type of timing system. Next, a timing system associated with the second content is determined, and a mapping is obtained that allows timecode conversion between the first and the second timing systems. Using the mapping to synchronize the presentation of the second content with that of the first content. Thus synchronization of multiple contents is properly maintained even when processing operations such as format conversion and transcoding cause metadata streams that carry timing information to be removed.

    Abstract translation: 方法，设备和计算机程序产品可以改善多个内容之间的同步。 一种公开的方法包括接收第一和第二内容并执行水印提取以恢复作为嵌入到该内容的片段中的水印的一部分的第一时间码。 第一个时间码符合第一种定时系统。 接下来，确定与第二内容相关联的定时系统，并且获得允许在第一和第二定时系统之间进行时间码转换的映射。 使用映射来将第二内容的呈现与第一内​​容的呈现同步。 因此，即使在诸如格式转换和代码转换的处理操作导致携带定时信息的元数据流被移除的情况下，也可以适当地维护多个内容的同步。

Patent Agency Ranking