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    Use of Watermarking to Trigger Fingerprint-Related Action
    3.
    发明申请
    Use of Watermarking to Trigger Fingerprint-Related Action 有权

    公开(公告)号：US20220150601A1

    公开(公告)日：2022-05-12

    申请号：US17648638

    申请日：2022-01-21

    Applicant: Roku, Inc.

    Inventor： Shashank C. Merchant ,  John S. Stavropoulos ,  Benjamin J. Ropke ,  Steven M. Cormie

    IPC: H04N21/8358 ,  H04N21/44 ,  G06F21/16 ,  H04N21/235 ,  H04N21/4415

    Abstract: Use of watermarking in a media stream as a trigger for carrying out a fingerprint-related action, such as starting to generate fingerprints of the media stream, increasing a rate of generation of fingerprints of the media stream, starting to report fingerprints of the media stream, requesting fingerprints, or engaging in a fingerprint comparison. In an implementation, a media client that is processing the media stream could detect the watermark in the media stream and could responsively carry out or cause to be carried out a fingerprint-related action. Or an entity in a media-distribution path along which the media stream flows to a media client could detect the watermark in the media stream and could responsively carry out or cause to be carried out a fingerprint-related action. Further, the watermark could be inserted into the media stream in the first place based on transport-stream carried metadata, among other possibilities.

    Method and system for re-uniting metadata with media-stream content at a media client, to facilitate action by the media client
    4.
    发明授权
    Method and system for re-uniting metadata with media-stream content at a media client, to facilitate action by the media client 有权

    公开(公告)号：US11153616B2

    公开(公告)日：2021-10-19

    申请号：US15929211

    申请日：2020-01-28

    Applicant: Roku, Inc.

    Inventor： Steven M. Cormie ,  Brian Jentz

    IPC: H04N7/10 ,  H04N7/025 ,  H04N21/235 ,  H04N21/83 ,  H04N21/8358 ,  H04N21/81 ,  H04N21/2389 ,  H04N21/234

    Abstract: In a communication system where a channel feed carrying a media stream is broadcast for delivery of the media stream to a media client, where the channel feed further includes metadata in-band and correlated with a content frame of the media stream, but where the metadata gets removed from the channel feed before the media stream reaches the media client, a computing system (i) extracts the metadata from the channel feed and (ii) transmits out-of-band to the media client the extracted metadata in correlation with reference fingerprint data representing the frame of the media stream, the correlation being useable by the media client as a basis to re-correlate the metadata with the frame of the media stream, so as to enable the media client to carry out an action, such as dynamic ad insertion, based on the correlation of the metadata with the frame of the media stream.

    Use of in-band metadata as basis to access reference fingerprints to facilitate content-related action
    5.
    发明授权
    Use of in-band metadata as basis to access reference fingerprints to facilitate content-related action 有权

    公开(公告)号：US11792254B2

    公开(公告)日：2023-10-17

    申请号：US17644183

    申请日：2021-12-14

    Applicant: Roku, Inc.

    Inventor： Steven M. Cormie ,  Brian Jentz

    IPC: H04L65/75 ,  H04L65/61 ,  H04L67/01

    CPC classification number: H04L65/764 ,  H04L65/61 ,  H04L67/01

    Abstract: As a media client receives a media stream for presentation, the media client could receive, in-band with the media stream, metadata identifying the media stream, such as a media-stream identifier encoded as a watermark in the media stream or carried together with the media stream in a packet-based transport stream, among other possibilities. And while the media client is processing the media stream for presentation, the media client could then convey the received metadata out-of-band to a server to enable the server to readily obtain reference fingerprints representing the media stream and to thereby facilitate, based on the reference fingerprints, a content-related action such as dynamic content modification for instance.

    METHOD AND SYSTEM FOR RE-UNITING METADATA WITH MEDIA-STREAM CONTENT AT A MEDIA CLIENT, TO FACILITATE ACTION BY THE MEDIA CLIENT
    6.
    发明申请
    METHOD AND SYSTEM FOR RE-UNITING METADATA WITH MEDIA-STREAM CONTENT AT A MEDIA CLIENT, TO FACILITATE ACTION BY THE MEDIA CLIENT 有权

    公开(公告)号：US20210409788A1

    公开(公告)日：2021-12-30

    申请号：US17447711

    申请日：2021-09-15

    Applicant: Roku, Inc.

    Inventor： Steven M. Cormie ,  Brian Jentz

    IPC: H04N21/235 ,  H04N21/83 ,  H04N21/8358 ,  H04N21/81 ,  H04N21/2389 ,  H04N21/234

    Abstract: In a communication system where a channel feed carrying a media stream is broadcast for delivery of the media stream to a media client, where the channel feed further includes metadata in-band and correlated with a content frame of the media stream, but where the metadata gets removed from the channel feed before the media stream reaches the media client, a computing system (i) extracts the metadata from the channel feed and (ii) transmits out-of-band to the media client the extracted metadata in correlation with reference fingerprint data representing the frame of the media stream, the correlation being useable by the media client as a basis to re-correlate the metadata with the frame of the media stream, so as to enable the media client to carry out an action, such as dynamic ad insertion, based on the correlation of the metadata with the frame of the media stream.

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