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    Monitoring loudness level during media replacement event using shorter time constant
    31.
    发明授权
    Monitoring loudness level during media replacement event using shorter time constant 有权

    公开(公告)号：US11042353B2

    公开(公告)日：2021-06-22

    申请号：US16684514

    申请日：2019-11-14

    Applicant: Roku, Inc.

    Inventor： Markus K. Cremer ,  Shashank Merchant ,  Robert Coover ,  Todd J. Hodges ,  Joshua Ernest Morris

    IPC: H03G3/24 ,  G06F3/16 ,  H04N21/439 ,  H04N21/81 ,  H03G3/30 ,  G06N3/08 ,  H04N5/14

    Abstract: In one aspect, an example method includes (i) determining, by a playback device, a first loudness level of a first portion of first media content from a first source while the playback device presents the first media content, with the first portion having a first length; (ii) switching, by the playback device, from presenting the first media content from the first source to presenting second media content from a second source; (iii) based on the switching, determining, by the playback device, second loudness levels of second portions of the first media content while the playback device presents the second media content, with the second portions having a second length that is shorter than the first length; and (iv) while the playback device presents the second media content, adjusting, by the playback device, a volume of the playback device based on one or more of the second loudness levels.

    Personalized content related to content being viewed
    32.
    发明授权
    Personalized content related to content being viewed 有权

    公开(公告)号：US12244885B2

    公开(公告)日：2025-03-04

    申请号：US18364169

    申请日：2023-08-02

    Applicant: Roku, Inc.

    Inventor： Shashank Merchant

    IPC: H04N21/2668 ,  H04N21/234 ,  H04N21/25 ,  H04N21/258 ,  H04N21/431

    Abstract: Provided herein are system, apparatus, article of manufacture, method and/or computer program product, and/or combinations and sub-combinations thereof, for utilizing a personalized content system to enhance an effectiveness of content being shown to the user via personalized content associated with the content. This method allows the platform to present the most relevant personalized in-channel content to the users, in a user interface, which then correspondingly helps drive user interest. This method scans content to identify objects of interest located within the content, generates a query based on the identified objects of interest and a user profile, searches content sources for related content, associates the related content with an occurrence of a corresponding identified object of interest within the content and communicates, to the user device, the content and the related content for instantiation through a user interface of the user device.

    Content-modification system with jitter effect mitigation feature
    38.
    发明授权
    Content-modification system with jitter effect mitigation feature 有权

    公开(公告)号：US11490154B2

    公开(公告)日：2022-11-01

    申请号：US17180263

    申请日：2021-02-19

    Applicant: Roku, Inc.

    Inventor： Shashank Merchant ,  Bruce William Randall ,  Brian Johnson ,  Chungwon Seo ,  Seunghyeong Lee ,  Paul Jeffrey Holmquist

    IPC: H04N21/43 ,  H04N21/4402 ,  H04N7/01 ,  H04N21/8547 ,  H04N21/438 ,  G06V20/40

    Abstract: One high-level aspect of a content-modification system and related methods may involve facilitating content modification by a content-presentation device of received broadcast content in a controlled manner, while under circumstances in which some events that can impact timing may be unpredictable. In particular, certain operations by a content-presentation device may involve matching received content with specific expected content as determined by one or another component of the content-modification system, in order to confirm proper conditions are met for the content-presentation device to proceed with, or continue, content-modification operations. It can happen the matching procedure becomes subject or susceptible to timing irregularities, or jitter. In some instances, jitter may impact the ability to derive the benefits of content modification. Accordingly, example embodiments herein are directed to systems and method for compensation and/or mitigating the effects of jitter.

    Media Content Identification on Mobile Devices
    39.
    发明申请
    Media Content Identification on Mobile Devices 有权

    公开(公告)号：US20220239977A1

    公开(公告)日：2022-07-28

    申请号：US17722523

    申请日：2022-04-18

    Applicant: Roku, Inc.

    Inventor： Mihailo M. Stojancic ,  Jose Pio Pereira ,  Peter Wendt ,  Shashank Merchant ,  Sunil Suresh Kulkarni

    IPC: H04N21/439 ,  H04N1/32 ,  H04N21/8352 ,  G10H1/00 ,  H04N21/414 ,  H04N21/422 ,  H04N21/4223 ,  H04N21/433 ,  H04N21/84 ,  H04N21/845

    Abstract: A mobile device responds in real time to media content presented on a media device, such as a television. The mobile device captures temporal fragments of audio-video content on its microphone, camera, or both and generates corresponding audio-video query fingerprints. The query fingerprints are transmitted to a search server located remotely or used with a search function on the mobile device for content search and identification. Audio features are extracted and audio signal global onset detection is used for input audio frame alignment. Additional audio feature signatures are generated from local audio frame onsets, audio frame frequency domain entropy, and maximum change in the spectral coefficients. Video frames are analyzed to find a television screen in the frames, and a detected active television quadrilateral is used to generate video fingerprints to be combined with audio fingerprints for more reliable content identification.

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