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公开(公告)号：US20170359607A1
公开(公告)日：2017-12-14
申请号：US15179476
申请日：2016-06-10
Applicant: Apple Inc.
Inventor： Zhenheng Li , David P. Saracino , Roger N. Pantos , Simon Goldrei
IPC: H04N21/2343 , H04L29/06 , H04N21/233 , H04N21/433 , H04N21/2187 , H04N21/81 , H04N21/2662 , H04N21/6332 , H04N21/24 , H04N21/242
CPC classification number: H04N21/23439 , H04L65/4084 , H04L65/602 , H04L65/80 , H04N21/2187 , H04N21/233 , H04N21/2402 , H04N21/242 , H04N21/2662 , H04N21/4331 , H04N21/43615 , H04N21/6332 , H04N21/8106
Abstract: A method of switching media output includes receiving a first variant of a media item with a player, transmitting the first variant to a secondary device, and upon determining a change in operating conditions, switching from the first variant of the media item to a second variant of the media item by estimating a time to perform the switch to the second variant, transmitting to the secondary device a notification of a time to switch from the first variant to the second variant, and transmitting the second variant to the secondary device.
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公开(公告)号：US20150016804A1
公开(公告)日：2015-01-15
申请号：US13941174
申请日：2013-07-12
Applicant: Apple Inc.
Inventor： David L. Biderman , Xiaosong Zhou , Douglas Scott Price , Yeping Su , Chris Y. Chung , Hsi-Jung Wu , Zhenheng Li , John Su , James D. Batson
CPC classification number: H04N21/6125 , G06K9/00718 , G06K2009/00738 , G11B27/005 , G11B27/3081 , H04N21/262 , H04N21/440281 , H04N21/6587 , H04N21/8456
Abstract: System and methods for improved playback of a video stream are presented. Video snippets are identified that include a number of consecutive frames for playback. Snippets may be evenly temporally spaced in the video stream or may be content adaptive. Then the first frame of a snippet may be selected as the first frame of a scene or other appropriate stopping point. Scene detection, object detection, motion detection, video metadata, or other information generated during encoding or decoding of the video stream may aid in appropriate snippet selection.
Abstract translation: 介绍了改进视频流播放的系统和方法。 识别包括多个连续帧进行播放的视频片段。 片段可以在视频流中均匀地间隔开，或者可以是内容自适应的。 然后，片段的第一帧可以被选择为场景或其他适当停止点的第一帧。 在视频流的编码或解码过程中产生的场景检测，对象检测，运动检测，视频元数据或其他信息可能有助于适当的片段选择。
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公开(公告)号：US10715776B2
公开(公告)日：2020-07-14
申请号：US15628073
申请日：2017-06-20
Applicant: Apple Inc.
Inventor： Roger N. Pantos , Zhenheng Li
IPC: H04N9/804 , G11B27/00 , H04L29/06 , H04N21/2343 , H04N21/2387 , H04N21/6587 , H04N21/845 , H04N21/8543
Abstract: Systems and methods for enabling playback control functions of a media player are disclosed. For example, a user of a client device receiving streaming playback of a video stream may perform rewind and fast forward control functions. The client device may implement these playback control functions by retrieving an enhanced playback segment. Using the enhanced playback segment, the media player may display selected frames at a predetermined interval while maintaining a visual cadence that is pleasing to a viewer. In the described embodiments, a client device may render a video stream, receive a command to control a fast forward or rewind playback mode for the video stream, and retrieve, from a distribution server or associated edge cache, one or more enhanced playback segments adapted to implement the user command.
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公开(公告)号：US10382830B2
公开(公告)日：2019-08-13
申请号：US15296156
申请日：2016-10-18
Applicant: Apple Inc.
Inventor： David L. Biderman , Xiaosong Zhou , Douglas Scott Price , Yeping Su , Chris Y. Chung , Hsi-Jung Wu , Zhenheng Li , John Su , James D. Batson
IPC: H04N21/61 , G06K9/00 , H04N21/262 , H04N21/845 , H04N21/6587 , H04N21/4402 , G11B27/30 , G11B27/00
Abstract: System and methods for improved playback of a video stream are presented. Video snippets are identified that include a number of consecutive frames for playback. Snippets may be evenly temporally spaced in the video stream or may be content adaptive. Then the first frame of a snippet may be selected as the first frame of a scene or other appropriate stopping point. Scene detection, object detection, motion detection, video metadata, or other information generated during encoding or decoding of the video stream may aid in appropriate snippet selection.
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公开(公告)号：US20170289500A1
公开(公告)日：2017-10-05
申请号：US15435882
申请日：2017-02-17
Applicant: Apple Inc.
Inventor： David L. Biderman , Simon Ezriel Chaim Goldrei , Zhenheng Li , Roger N. Pantos , Mohammed Z. Visharam
CPC classification number: H04N7/15 , H04N7/147 , H04N21/4302
Abstract: Techniques are disclosed for synchronizing media rendering among a plurality of networked terminals. A first terminal may receive communication from another terminal that correlates a network time to a first portion of a media item to be rendered on the terminals. The terminals may identify, from the correlation of network time to the first portion of media and from a playback rate negotiated between the terminals, other portions of the media item to be rendered at other network times. The terminals each may render appropriate portions of the media item as network time progresses. The terminals also may exchange other data to alter playback modes during the course of a common rendering session.
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Patent Agency Ranking
公开(公告)号：US09843825B1
公开(公告)日：2017-12-12
申请号：US15179476
申请日：2016-06-10
Applicant: Apple Inc.
Inventor： Zhenheng Li , David P. Saracino , Roger N. Pantos , Simon Goldrei
IPC: H04N7/173 , H04N21/2343 , H04L29/06 , H04N21/2187 , H04N21/233 , H04N21/81 , H04N21/433 , H04N21/24 , H04N21/242 , H04N21/2662 , H04N21/6332
CPC classification number: H04N21/23439 , H04L65/4084 , H04L65/602 , H04L65/80 , H04N21/2187 , H04N21/233 , H04N21/2402 , H04N21/242 , H04N21/2662 , H04N21/4331 , H04N21/43615 , H04N21/6332 , H04N21/8106
Abstract: A method of switching media output includes receiving a first variant of a media item with a player, transmitting the first variant to a secondary device, and upon determining a change in operating conditions, switching from the first variant of the media item to a second variant of the media item by estimating a time to perform the switch to the second variant, transmitting to the secondary device a notification of a time to switch from the first variant to the second variant, and transmitting the second variant to the secondary device.
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公开(公告)号：US20170041681A1
公开(公告)日：2017-02-09
申请号：US15296156
申请日：2016-10-18
Applicant: Apple Inc.
Inventor： David L. Biderman , Xiaosong Zhou , Douglas Scott Price , Yeping Su , Chris Y. Chung , Hsi-Jung Wu , Zhenheng Li , John Su , James D. Batson
IPC: H04N21/61 , G06K9/00 , H04N21/262 , H04N21/6587 , H04N21/845
CPC classification number: H04N21/6125 , G06K9/00718 , G06K2009/00738 , G11B27/005 , G11B27/3081 , H04N21/262 , H04N21/440281 , H04N21/6587 , H04N21/8456
Abstract: System and methods for improved playback of a video stream are presented. Video snippets are identified that include a number of consecutive frames for playback. Snippets may be evenly temporally spaced in the video stream or may be content adaptive. Then the first frame of a snippet may be selected as the first frame of a scene or other appropriate stopping point. Scene detection, object detection, motion detection, video metadata, or other information generated during encoding or decoding of the video stream may aid in appropriate snippet selection.
Abstract translation: 介绍了改进视频流播放的系统和方法。 识别包括多个连续帧进行播放的视频片段。 片段可以在视频流中均匀地间隔开，或者可以是内容自适应的。 然后，片段的第一帧可以被选择为场景或其他适当停止点的第一帧。 在视频流的编码或解码过程中产生的场景检测，对象检测，运动检测，视频元数据或其他信息可能有助于适当的片段选择。
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公开(公告)号：US09508390B2
公开(公告)日：2016-11-29
申请号：US13941174
申请日：2013-07-12
Applicant: Apple Inc.
Inventor： David L. Biderman , Xiaosong Zhou , Douglas Scott Price , Yeping Su , Chris Y. Chung , Hsi-Jung Wu , Zhenheng Li , John Su , James D. Batson
IPC: H04N5/783 , G11B27/30 , G11B27/00 , H04N21/4402 , H04N21/6587 , H04N21/845
CPC classification number: H04N21/6125 , G06K9/00718 , G06K2009/00738 , G11B27/005 , G11B27/3081 , H04N21/262 , H04N21/440281 , H04N21/6587 , H04N21/8456
Abstract: System and methods for improved playback of a video stream are presented. Video snippets are identified that include a number of consecutive frames for playback. Snippets may be evenly temporally spaced in the video stream or may be content adaptive. Then the first frame of a snippet may be selected as the first frame of a scene or other appropriate stopping point. Scene detection, object detection, motion detection, video metadata, or other information generated during encoding or decoding of the video stream may aid in appropriate snippet selection.
Abstract translation: 介绍了改进视频流播放的系统和方法。 识别包括多个连续帧进行播放的视频片段。 片段可以在视频流中均匀地间隔开，或者可以是内容自适应的。 然后，片段的第一帧可以被选择为场景或其他适当停止点的第一帧。 在视频流的编码或解码过程中产生的场景检测，对象检测，运动检测，视频元数据或其他信息可能有助于适当的片段选择。
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公开(公告)号：US08904453B2
公开(公告)日：2014-12-02
申请号：US13828332
申请日：2013-03-14
Applicant: Apple Inc.
Inventor： William G. Stewart , Roger N. Pantos , Douglas S. Wyatt , Zhenheng Li
IPC: H04N7/173 , H04N7/10 , H04N7/025 , H04N21/43 , H04N21/2343 , H04N21/472 , H04N21/442 , G11B27/038 , H04N21/439 , H04N21/845
CPC classification number: H04N21/47202 , G11B27/034 , G11B27/038 , H04N21/23439 , H04N21/4307 , H04N21/439 , H04N21/44209 , H04N21/8456
Abstract: Systems and methods for switching between encoded media streams are disclosed. A system may be configured to receive at least two media streams of differing qualities that are associated with an identical media asset. The system can seamlessly switch between a first media stream and a second media stream using an algorithm that can determine which frames of a second stream must be discarded to sync the second stream with the first media stream. The two media streams can then be cross faded to switch from the first media stream to the second media stream.
Abstract translation: 公开了用于在编码媒体流之间切换的系统和方法。 系统可以被配置为接收与相同媒体资产相关联的不同质量的至少两个媒体流。 系统可以使用可以确定必须丢弃第二流的哪些帧以将第二流与第一媒体流同步的算法在第一媒体流和第二媒体流之间无缝切换。 然后可以将两个媒体流交叉淡入淡出以从第一媒体流切换到第二媒体流。
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公开(公告)号：US11178202B2
公开(公告)日：2021-11-16
申请号：US16819816
申请日：2020-03-16
Applicant: Apple Inc.
Inventor： Prashant Nandakumar , Zhenheng Li , Roger N. Pantos , Gregory R. Chapman
Abstract: In one embodiment, systems, methods and non-transitory machine readable media detect differences between the rate of production, by a server, of media segments identified in an HTTP compliant playlist and the rate of consumption, by a client device, of the media segments in streaming media content. These differences, once detected, can be used to adjust a playback rate at the client to reduce the difference between the server rate and the client rate. This detection can be used in low latency streaming media contexts in which the client device is playing back content that is live, such as a live sports event happening during the playback by the client device. The adjustment of the client's playback rate can avoid running out of buffered media segments (when the client's rate is much faster than the server's rate) and can avoid increasing latency at the client device and overloading a buffer with too many media segments (when the client's rate is much slower than the server's rate).
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