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11. 发明授权

US11432031B2 Content playback program, content playback method, and content playback system 有权
公开(公告)号：US11432031B2
公开(公告)日：2022-08-30
申请号：US16970274
申请日：2018-02-23
申请人： EVIXAR INC.
发明人： Hisaharu Suzuki , Yasuhiko Nagatomo , Atsushi Takigawa
IPC分类号： H04N21/43 , H04N21/2187 , H04N21/2389 , H04N21/8358 , H04N21/8547
摘要： It is an object of the present invention to play back other content on any timing without being restricted to the embedded timing of watermark data embedded in the content even when the progress time of the content fluctuates. The content playback program in the present invention causes a computer to realize: a first table for associating and storing a synchronization point ID embedded as watermark data with a scheduled timing for the synchronization point based on a synchronization reference timing for the main content; a second table for storing a scheduled start timing for first sub-content based on the synchronization reference timing; a detection function for detecting the synchronization point ID embedded as watermark data from second sub-content played back based on the progress of the main content; an acquisition function for acquiring the scheduled timing for the synchronization point based on the detected synchronization point ID and the first table, and acquiring the difference between the scheduled timing of the acquired synchronization point and the detection timing for the synchronization point ID based on the synchronization reference timing; a determination function for determining a start timing for the first sub-content based on the acquired difference and the second table; and a control function for controlling playback of the first sub-content based on the determined start timing for the first sub-content.

12. 发明授权

US11412277B2 Methods and apparatus for watermark outage detection 有权
公开(公告)号：US11412277B2
公开(公告)日：2022-08-09
申请号：US17086018
申请日：2020-10-30
申请人： The Nielsen Company (US), LLC
发明人： Kenneth Albert Hennacy , Girish Khavasi
IPC分类号： H04N21/2389 , H04N21/24 , H04N21/234 , H04N21/8358
摘要： Methods, apparatus, systems and articles of manufacture are disclosed for watermark outage detection. Example methods include evaluating an onset time and duration of a detected watermark outage based on a model of expected watermark outages to determine whether the detected watermark outage corresponds to at least one of the expected watermark outages represented in the model. Example methods further include generating an alert in response to determining the detected watermark outage does not correspond to at least one of the expected watermark outages included in the model, and suppressing the alert in response to determining the detected watermark outage corresponds to the at least one of the expected watermark outages represented in the model.

13. 发明授权

US11368764B2 Method and apparatus for selection of content from a stream of data 有权
公开(公告)号：US11368764B2
公开(公告)日：2022-06-21
申请号：US17148700
申请日：2021-01-14
申请人： Roku, Inc.
发明人： Igor Alexandrovich Nagorski , Jan Alexis Daniel Nesvadba , Ronaldus Maria Aarts
IPC分类号： H04N21/81 , H04N19/467 , H04N21/2343 , H04N21/235 , H04N21/2368 , H04N21/2389 , H04N21/254 , H04N21/41 , H04N21/434 , H04N21/435 , H04N21/4385 , H04N21/8549 , H04N5/50 , H04N21/438 , H04N21/44 , H04N21/462 , H04N21/466 , H04N21/84 , H04N21/845
摘要： A main stream contains successive content elements of video and/or audio information that encode video and/or audio information at a first data rate. A computation circuit (144) computes main fingerprints from the successive content elements. A reference stream is received having a second data rate lower than the first data rate. The reference stream defines a sequence of the reference fingerprints. A comparator unit (144) compares the main fingerprints with the reference fingerprints. The main stream is monitored for the presence of inserted content elements between original content elements, where the original content elements have main fingerprints that match successive reference fingerprints and the inserted content elements have main fingerprints that do not match reference fingerprints. Rendering of inserted content elements to be skipped. In an embodiment when more than one content element matches only one is rendered. In another embodiment matching is used to control zapping to or from the main stream. In another embodiment matching is used to control linking of separately received mark-up information such as subtitles to points in the main stream.

14. 发明申请

US20220182689A1 BROADCAST SIGNAL TRANSMITTING/RECEIVING DEVICE AND METHOD 有权
公开(公告)号：US20220182689A1
公开(公告)日：2022-06-09
申请号：US17568587
申请日：2022-01-04
申请人： LG ELECTRONICS INC.
发明人： Seungryul YANG , Minsung KWAK , Woosuk KO
IPC分类号： H04N21/2389 , H04N21/236 , H04N21/61
摘要： A broadcast signal transmitting method is disclosed. The broadcast signal transmitting method comprises the steps of: processing at least one component of a broadcast service on the basis of a delivery protocol; generating service layer signaling (SLS) information including information on the component; generating service list table (SLT) information including bootstrap information for acquiring the SLS information; and generating a signal frame including a physical layer pipe (PLP) by performing a physical layer processing on the at least one component, the SLS information and the SLT information.

15. 发明申请

US20220116687A1 TRANSMISSION DEVICE, RECEPTION DEVICE, TRANSMISSION SYSTEM, AND TRANSMISSION METHOD 有权
公开(公告)号：US20220116687A1
公开(公告)日：2022-04-14
申请号：US17277940
申请日：2019-10-03
申请人： Sony Corporation
发明人： Mikio ISHII , Tomoyuki ENDO , Hideaki MURAYAMA
IPC分类号： H04N21/647 , H04N21/234 , H04N21/2389 , H04L1/16
摘要： The present technology relates to a transmission device, a reception device, a transmission system, and a transmission method capable of improving transmission efficiency of subdata added to main data.
A transmission device includes a frame sequence number setting unit that, on the basis of a frame number indicating an order of a subframe in a main frame, assigns to the subframe a frame sequence number indicating an order of the subframe in a frame sequence including a plurality of the subframes, and a multiplexing unit that arranges a data packet at a predetermined position in the subframe on the basis of the frame sequence number. The present technology can be applied to a CCU, for example.

16. 发明授权

US11290754B2 Transmission device, transmission method, reception device, reception method, display device, and display method 有权
公开(公告)号：US11290754B2
公开(公告)日：2022-03-29
申请号：US16743852
申请日：2020-01-15
申请人： SONY CORPORATION
发明人： Ikuo Tsukagoshi
IPC分类号： H04N21/234 , H04N21/2343 , H04N21/435 , H04N21/81 , H04N21/84 , H04N5/20 , H04N9/68 , H04N21/2389 , H04N21/4402 , H04N19/70 , H04N21/235 , H04N21/438
摘要： A transmission device including circuitry is provided. The circuitry is configured to apply photoelectric conversion characteristics to high dynamic range video data to obtain transmission video data. The circuitry is configured to transmit a container including a video stream obtained by encoding the transmission video data. The circuitry is configured to insert type information to designate the type of conversion characteristics corresponding to the applied photoelectric conversion characteristics for photoelectric conversion of the transmission video data into a layer of the video stream and/or a layer of the container. The type of the conversion characteristics designated by the type information is determined regardless of luminance of a display.

17. 发明授权

US11223850B2 Receiving system and method for processing digital broadcast signal in the receiving system 有权
公开(公告)号：US11223850B2
公开(公告)日：2022-01-11
申请号：US16884152
申请日：2020-05-27
申请人： LG ELECTRONICS INC.
发明人： Chulkyu Mun , Jinwoo Kim , Inhwan Choi , Byounggill Kim , Wongyu Song
IPC分类号： H04N19/66 , H03M13/27 , H04L27/06 , H04L1/00 , H04L25/02 , H03M13/29 , H03M13/35 , H04N21/2383 , H04N21/438 , H04N21/61 , H04L29/00 , H04N7/24 , H04N21/2389 , H04L27/00 , H03M13/09 , H03M13/15 , H03M13/25 , H04H20/57 , H04N21/236 , H04N21/2362
摘要： A transmitting system, receiving system, and a method of processing broadcast signals are disclosed. The method for processing a broadcast signal in a broadcast receiver comprises receiving a DTV signal including a data group, the data group including mobile service data, segmented known data sequences, long known data sequences and transmission parameter data, compensating carrier frequency offset of the DTV signal and channel-equalizing the carrier frequency offset compensated DTV signal using at least one of the long known data sequences and segmented known data sequences in the data group of the DTV signal, wherein the channel-equalizing includes performing a Error Correction (FEC) decoding on data located between the segmented known data sequences, and estimating Channel Impulse Response (CIR) using the FEC decoded data as known data.

18. 发明申请

US20220007083A1 METHOD AND STREAM-PUSHING CLIENT FOR PROCESSING LIVE STREAM IN WEBRTC 有权
公开(公告)号：US20220007083A1
公开(公告)日：2022-01-06
申请号：US17285747
申请日：2018-12-10
申请人： WANGSU SCIENCE & TECHNOLOGY CO., LTD.
发明人： Xinjian LIN
IPC分类号： H04N21/8358 , H04N21/2187 , H04N21/643 , H04N21/439 , H04N21/2389
摘要： The present disclosure provides a method for processing a live stream in web real-time communication (WebRTC) and a stream-pushing client. The method includes collecting an original live stream, and loading the original live stream into a temporary video tag, thereby playing the original live stream through the temporary video tag; creating a temporary image tag and loading a preset watermark image into the temporary image tag; creating a temporary drawing tag and drawing a current video frame in the temporary video tag and the preset watermark image in the temporary image tag into the temporary drawing tag; and acquiring a canvas video stream corresponding to the temporary drawing tag, and based on the canvas video stream and the original live stream, generating a watermark live stream with one or more added watermarks, wherein the watermark live stream is configured to be transmitted to a resource server through a WebRTC connection.

19. 发明申请

US20220007063A1 TRANSMISSION DEVICE, TRANSMISSION METHOD, RECEPTION DEVICE, RECEPTION METHOD, DISPLAY DEVICE, AND DISPLAY METHOD 有权
公开(公告)号：US20220007063A1
公开(公告)日：2022-01-06
申请号：US17448125
申请日：2021-09-20
申请人： SONY CORPORATION
发明人： Ikuo TSUKAGOSHI
IPC分类号： H04N21/234 , H04N21/84 , H04N5/20 , H04N9/68 , H04N21/2389 , H04N21/4402 , H04N21/81 , H04N19/70 , H04N21/2343 , H04N21/235 , H04N21/435 , H04N21/438
摘要： A transmission device including circuitry is provided. The circuitry is configured to apply photoelectric conversion characteristics to high dynamic range video data to obtain transmission video data. The circuitry is configured to transmit a container including a video stream obtained by encoding the transmission video data. The circuitry is configured to insert type information to designate the type of conversion characteristics corresponding to the applied photoelectric conversion characteristics for photoelectric conversion of the transmission video data into a layer of the video stream and/or a layer of the container. The type of the conversion characteristics designated by the type information is determined regardless of luminance of a display.

20. 发明申请

US20210409788A1 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
申请人： Roku, Inc.
发明人： Steven M. Cormie , Brian Jentz
IPC分类号： H04N21/235 , H04N21/83 , H04N21/8358 , H04N21/81 , H04N21/2389 , H04N21/234
摘要： 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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