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    Establishment and Use of Time Mapping Based on Interpolation Using Low-Rate Fingerprinting, to Help Facilitate Frame-Accurate Content Revision
    1.
    发明申请
    Establishment and Use of Time Mapping Based on Interpolation Using Low-Rate Fingerprinting, to Help Facilitate Frame-Accurate Content Revision 有权

    公开(公告)号：US20210105515A1

    公开(公告)日：2021-04-08

    申请号：US17247517

    申请日：2020-12-15

    Applicant: Gracenote, Inc.

    Inventor： Peter Dunker ,  Markus K. Cremer ,  Shashank C. Merchant ,  Kurt R. Thielen

    IPC: H04N21/234 ,  G06F17/18 ,  H04N21/43

    Abstract: A computing system identifies multiple matching points between (i) query fingerprints representing a media stream being received by a client and (ii) reference fingerprints, each identified matching point defining a respective match between a query fingerprint timestamped with client time defined according to a clock of the client and a reference fingerprint timestamped with true time defined according to a timeline within a known media stream. Further, the computing system performs linear regression based on the timestamps of the matching points, to establish a mapping between true time and client time. The computing system then uses the mapping to determine a client-time point at which the client should perform a content revision or other action with respect to the media stream being received by the client. And the computing system causes the client to perform the content revision or other action at the determined client-time point.

    MODIFYING PLAYBACK OF REPLACEMENT CONTENT BASED ON CONTROL MESSAGES
    3.
    发明申请
    MODIFYING PLAYBACK OF REPLACEMENT CONTENT BASED ON CONTROL MESSAGES 审中-公开

    公开(公告)号：US20200029118A1

    公开(公告)日：2020-01-23

    申请号：US16182201

    申请日：2018-11-06

    Applicant: Gracenote, Inc.

    Inventor： Kurt R. Thielen ,  Peter Dunker ,  Markus K. Cremer ,  Steven D. Scherf ,  Shashank Merchant

    IPC: H04N21/431 ,  H04N21/234 ,  H04N21/262 ,  H04N21/4415 ,  H04N21/488

    Abstract: In one aspect, an example method includes (i) identifying, by a playback device, a media device based on a control message received from the media device by way of an audio and/or video interface, where the media device provides media content to the playback device; (ii) providing, by the playback device, replacement media content for display; (iii) determining, by the playback device, that while the playback device is displaying the replacement media content a remote control transmitted an instruction to the identified media device; (iv) determining, by the playback device, a playback-modification action corresponding to the instruction and the identified media device; and (v) modifying, by the playback device, playback of the replacement media content in accordance with the playback-modification action.

    Establishment and Use of Time Mapping Based on Interpolation Using Low-Rate Fingerprinting, to Help Facilitate Frame-Accurate Content Revision
    4.
    发明申请
    Establishment and Use of Time Mapping Based on Interpolation Using Low-Rate Fingerprinting, to Help Facilitate Frame-Accurate Content Revision 审中-公开

    公开(公告)号：US20200029115A1

    公开(公告)日：2020-01-23

    申请号：US16166981

    申请日：2018-10-22

    Applicant: Gracenote, Inc.

    Inventor： Peter Dunker ,  Markus K. Cremer ,  Shashank C. Merchant ,  Kurt R. Thielen

    IPC: H04N21/43 ,  H04N21/234 ,  G06F17/18

    Abstract: A media client ascertains a plurality of matching points between (i) query fingerprints representing a media stream being received by the client and (ii) reference fingerprints, each identified matching point defining a respective match between a query fingerprint that is timestamped with client time defined according to a clock of the client and a reference fingerprint that is timestamped with true time defined according to a timeline within a known media stream. Further, the client performs linear regression based on the timestamps of the ascertained plurality of matching points, to establish a mapping between true time and client time. The client then uses the established mapping as a basis to determine a client-time point at which the client should perform an action with respect to media stream being received by the client. And the client performs the action at the determined client-time point.

    Advanced Preparation for Content Revision Based on Expected Latency in Obtaining New Content
    5.
    发明申请
    Advanced Preparation for Content Revision Based on Expected Latency in Obtaining New Content 审中-公开

    公开(公告)号：US20200344506A1

    公开(公告)日：2020-10-29

    申请号：US16924806

    申请日：2020-07-09

    Applicant: Gracenote, Inc.

    Inventor： Peter Dunker ,  Markus K. Cremer ,  Shashank C. Merchant ,  Kurt R. Thielen

    IPC: H04N21/234 ,  H04N21/485 ,  H04N21/845 ,  H04N21/8358 ,  H04N21/81

    Abstract: When a media client is receiving a media stream, the media client determines an upcoming time point at which the media client is to perform a content revision involving insertion (e.g., substitution or overlaying) of new content. The media client further determines an advanced time point when the media client should initiate a process of acquiring the new content, setting the advanced time point sufficiently in advance of the upcoming content-revision time point to enable the media client to obtain at least enough of the new content to be able to start the content revision on time. In an example implementation, the media client could determine the advanced time point by predicting how long the content-acquisition process will take, based on consideration of past instances of content acquisition, possibly correlated with operational factors such as content source, processor load, memory load, network speed, and time of day.

    Advanced Preparation for Content Revision Based on Expected Latency in Obtaining New Content
    7.
    发明申请
    Advanced Preparation for Content Revision Based on Expected Latency in Obtaining New Content 审中-公开

    公开(公告)号：US20200029107A1

    公开(公告)日：2020-01-23

    申请号：US16166962

    申请日：2018-10-22

    Applicant: Gracenote, Inc.

    Inventor： Peter Dunker ,  Markus K. Cremer ,  Shashank C. Merchant ,  Kurt R. Thielen

    IPC: H04N21/234 ,  H04N21/485 ,  H04N21/8358 ,  H04N21/845

    Abstract: When a media client is receiving a media stream, the media client determines an upcoming time point at which the media client is to perform a content revision involving insertion (e.g., substitution or overlaying) of new content. The media client further determines an advanced time point when the media client should initiate a process of acquiring the new content, setting the advanced time point sufficiently in advance of the upcoming content-revision time point to enable the media client to obtain at least enough of the new content to be able to start the content revision on time. In an example implementation, the media client could determine the advanced time point by predicting how long the content-acquisition process will take, based on consideration of past instances of content acquisition, possibly correlated with operational factors such as content source, processor load, memory load, network speed, and time of day.

    Dynamic Control of Fingerprinting Rate to Facilitate Time-Accurate Revision of Media Content
    8.
    发明申请
    Dynamic Control of Fingerprinting Rate to Facilitate Time-Accurate Revision of Media Content 有权

    公开(公告)号：US20210219011A1

    公开(公告)日：2021-07-15

    申请号：US17213921

    申请日：2021-03-26

    Applicant: Gracenote, Inc.

    Inventor： Kurt R. Thielen ,  Shashank C. Merchant ,  Peter Dunker ,  Markus K. Cremer ,  Steven D. Scherf

    IPC: H04N21/43 ,  H04N21/234 ,  H04N21/4402

    Abstract: A computing system identifies a media stream being received by a client, based on fingerprint matching conducted with query fingerprints generated by the client at a frame rate. The computing system then causes the client to increase the frame rate, in order to facilitate establishment by the computing system of synchronous lock between true time within the media stream and client time according to a clock of the client. The computing system then uses the established synchronous lock as a basis to map a true-time point at which a content revision should be performed in the media stream to a client-time point at which the client should perform the content revision. And the computing system causes the client to perform the content revision at the determined client-time point.

    Dynamic Control of Fingerprinting Rate to Facilitate Time-Accurate Revision of Media Content
    9.
    发明申请
    Dynamic Control of Fingerprinting Rate to Facilitate Time-Accurate Revision of Media Content 审中-公开

    公开(公告)号：US20200021877A1

    公开(公告)日：2020-01-16

    申请号：US16166948

    申请日：2018-10-22

    Applicant: Gracenote, Inc.

    Inventor： Kurt R. Thielen ,  Shashank C. Merchant ,  Peter Dunker ,  Markus K. Cremer ,  Steven D. Scherf

    IPC: H04N21/43 ,  H04N21/4402 ,  H04N21/234

    Abstract: A computing system identifies a media stream being received by a client, based on fingerprint matching conducted with query fingerprints generated by the client at a frame rate. The computing system then causes the client to increase the frame rate, in order to facilitate establishment by the computing system of synchronous lock between true time within the media stream and client time according to an clock of the client. The computing system then uses the established synchronous lock as a basis to map a true-time point at which a content revision should be performed in the media stream to a client-time point at which the client should perform the content revision. And the computing system causes the client to perform the content revision at the determined client-time point.

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