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公开(公告)号：US10931725B2
公开(公告)日：2021-02-23
申请号：US16147527
申请日：2018-09-28
Applicant: Apple Inc.
Inventor： Christopher M. Garrido , Thomas P. Devanneaux , Yan Yang , Ming Jin , Vu H. Chiem , Patrick Miauton , Karthick Santhanam , David L. Biderman , Hsien-Po Shiang , Eric L. Chien , Xiaoxiao Zheng , Bess C. Chan , Komei Harada , Dazhong Zhang
Abstract: A device implementing a system for audio-video conferencing using multiple stream identifiers includes a processor configured to receive, from a sending device, indication of a first content stream and a first stream identifier, and indication of a second content stream and a second stream identifier associated. The first content stream and the second content stream correspond to different bit rates of streaming content. The processor is configured to receive, from a receiving device, a request to subscribe to the second content stream, the request including the second stream identifier, and receive, from the sending device, an indication that the second stream identifier has been associated with the first content stream. The processor is configured to forward, to the receiving device, the first content stream based on the request to subscribe to the second content stream and on the indication that the second stream identifier has been associated with the first content stream.
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公开(公告)号：US10277829B1
公开(公告)日：2019-04-30
申请号：US15675451
申请日：2017-08-11
Applicant: Apple Inc.
Inventor： Christopher M. Garrido , David L. Biderman , Eric L. Chien , Gurtej Singh G. Chandok , Kartik P. Sathappan , Komei Harada , Ming Jin , Patrick Miauton , Wenhui Xu , Xiaoxiao Zheng , Yichao Shen
Abstract: In scenes that have low lighting, it may be difficult for a personal electronic device to capture video images that meet a scene lighting criteria. In some low-lighting situations, the receiving party may be unable to sufficiently see the face of the party that they are videoconferencing with. Described herein are techniques for utilizing a device's display to illuminate the scene surrounding the device. Improved lighting may come from global display adjustments, local display adjustments that do not alter the display's contents (other than to change their brightness levels), and/or local display adjustments that alter the display's contents. In some embodiments, background elements on a device's display may be identified for brightening in a first attempt to meet the scene lighting criteria without negatively impacting foreground scene content. If such approaches are unsuccessful, the device may next replace one or more regions of displayed content with regions of brightened pixels.
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公开(公告)号：US20180352089A1
公开(公告)日：2018-12-06
申请号：US15991905
申请日：2018-05-29
Applicant: Apple Inc.
Inventor： Christopher M. Garrido , Eric L. Chien , Wenhui Xu , Xiaoxiao Zheng , Spencer E. Lewson , Keith W. Rauenbuehler , Komei Harada , Ming Jin , Gurtej Singh G. Chandok , David L. Biderman
CPC classification number: H04M3/567 , H04L65/1083 , H04L65/4023 , H04L65/403 , H04N5/23235 , H04N7/147 , H04N7/155
Abstract: A first request to form a conference call is received from a first of a plurality of electronic devices. In response to the first request, a conference data structure is generated in a memory. Based on determining the conference call has ended, a second request is transmitted to each of the plurality of electronic devices to return a high-resolution video stream generated by each electronic device during the conference call. In response to the second requests, the high-resolution video stream is received from at least some of the plurality of electronic devices. Each of the received high-resolution video streams is stored in the conference data structure in the memory to generate a completed conference data structure. A notice that the completed conference data structure is available is transmitted to each of the plurality of electronic devices.
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公开(公告)号：US20170347063A1
公开(公告)日：2017-11-30
申请号：US15167582
申请日：2016-05-27
Applicant: Apple Inc.
Inventor： Ajoy K. Singh , Christopher M. Garrido , Luciano M. Verger , Najeeb M. Abdulrahiman , Srinivasan Vasudevan , Ming Jin , David L. Biderman , Gurtej Singh G. Chandok , Patrick Miauton , Eric A. Allamanche , Anil G. Naik , Deepak Chitlur Lakshman , Hsien-Po Shiang
CPC classification number: H04N7/147 , H04N7/148 , H04W36/0022 , H04W36/0094 , H04W36/14 , H04W36/30 , H04W76/10 , H04W76/15 , H04W84/12 , H04W88/06
Abstract: This disclosure relates to inter radio access technology management for audiovisual calls. Wireless link availability and suitability for an audiovisual call may be evaluated for each of a first radio access technology and a second radio access technology. One or more wireless links on which to establish an audiovisual call may be selected based on the evaluations. The audiovisual call may be established on the selected wireless link(s). Wireless link availability and suitability for an audiovisual call may be monitored during the audiovisual call and decisions on whether to perform handover to a different wireless link and/or media duplication on multiple wireless links may be made based on the suitability for an audiovisual call of available wireless links.
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25.发明公开公开(公告)号：US20230283538A1
公开(公告)日：2023-09-07
申请号：US18314874
申请日：2023-05-10
Applicant: Apple Inc.
Inventor： Hsien-Po Shiang , Ming Jin , Gabriel Nava Marino , Gurtej Singh G. Chandok , Hyeonkuk Jeong , Padmavathy Bhooma , Christoph Paasch , Christopher M. Garrido , David L. Biderman , Erik Vladimir Ortega Gonzalez
Abstract: The embodiments described herein can dynamically adjust timing of network bandwidth estimations by adjusting a target frequency for sending probing sequences to one or more receivers of content. The receivers receive these probing sequences from a transmitter and respond to the transmitter with network bandwidth estimations. In one embodiment, the probing sequences can use the content itself to create the probing sequences. The embodiments can be used in video conferencing applications to control how a transmitter of content can adjust transmissions based upon the network bandwidth estimations. In one embodiment, a policy can be used at a transmitter to begin a video transmission with a high frequency target for sending probing sequences (with, e.g., smaller length probing sequences) and transition to a lower frequency target (with, e.g., longer length probing sequences) when network bandwidth deteriorates and then return to the higher frequency target when the network bandwidth improves.
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Patent Agency Ranking
公开(公告)号：US11637886B2
公开(公告)日：2023-04-25
申请号：US17168107
申请日：2021-02-04
Applicant: Apple Inc.
Inventor： Daniel B. Pollack , Karthick Santhanam , Christopher M. Garrido , Jingyao Zhang , Ming Jin , Hyeonkuk Jeong
IPC: H04L65/80 , H04N21/24 , H04W16/14 , H04L65/70 , H04L65/612
Abstract: A device implementing cellular communication protocol aware multimedia streaming may include at least one processor configured to establish a link for communicating with another device, wherein the link utilizes at least one of a first cellular communication protocol or a second cellular communication protocol. The at least one processor may be configured to determine a bit rate for a video stream to be provided to the other device based at least in part on whether the link utilizes the first cellular communication protocol or the second cellular communication protocol, wherein a first bit rate is determined when the link utilizes the first cellular communication protocol and a second bit rate is determined when the link utilizes the second cellular communication protocol. The at least one processor may be configured to provide, for transmission over the link to the other electronic device, the video stream at the determined bit rate.
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公开(公告)号：US11606574B2
公开(公告)日：2023-03-14
申请号：US16882819
申请日：2020-05-26
Applicant: Apple Inc.
Inventor： Dazhong Zhang , Peikang Song , Beibei Wang , Giribalan Gopalan , Albert E. Keinath , Christopher M. Garrido , David R. Conrad , Hsi-Jung Wu , Ming Jin , Hang Yuan , Xiaohua Yang , Xiaosong Zhou , Vikrant Kasarabada , Davide Concion , Eric L. Chien , Bess C. Chan , Karthick Santhanam , Gurtej Singh Chandok
IPC: H04N19/507 , H04N19/65
Abstract: Techniques are disclosed for coding video data in which frames from a video source are partitioned into a plurality of tiles of common size, and the tiles are coded as a virtual video sequence according to motion-compensated prediction, each tile treated as having respective temporal location of the virtual video sequence. The coding scheme permits relative allocation of coding resources to tiles that are likely to have greater significance in a video coding session, which may lead to certain tiles that have low complexity or low motion content to be skipped during coding of the tiles for select source frames. Moreover, coding of the tiles may be ordered to achieve low coding latencies during a coding session.
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公开(公告)号：US20210400338A1
公开(公告)日：2021-12-23
申请号：US17304273
申请日：2021-06-17
Applicant: Apple Inc.
Inventor： Luciano M. Verger , David L. Biderman , Christopher M. Garrido , Karthick Santhanam , Brian T. Toombs , Gurtej Singh G. Chandok , Joshua L. Hare , Patrick Miauton , Ming Jin , Bradley F. Patterson
IPC: H04N21/44 , H04N21/442 , H04N21/458
Abstract: A method and apparatus of a device that uses a video jitter buffer to buffer the video frames for a received video stream is described. The device uses the video jitter buffer to estimate the delay variability of the frames and pick a target delay that will help harmonize the playback with minimal loss and delay. This is achieved by estimating the delay spread, which is the result of performing statistical analysis of the measured lags of the video frames received. The video jitter buffer provides target delay recommendation and reference frame information to the video player in order to anchor the playback and schedule the frames presentation time.
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29.发明申请公开(公告)号：US20210399971A1
公开(公告)日：2021-12-23
申请号：US17304312
申请日：2021-06-17
Applicant: Apple Inc.
Inventor： Hsien-Po Shiang , Ming Jin , Gabriel Nava Marino , Gurtej Singh G. Chandok , Hyeonkuk Jeong , Padmavathy Bhooma , Christoph Paasch , Christopher M. Garrido , David L. Biderman , Erik Vladimir Ortega Gonzalez
Abstract: The embodiments described herein can dynamically adjust timing of network bandwidth estimations by adjusting a target frequency for sending probing sequences to one or more receivers of content. The receivers receive these probing sequences from a transmitter and respond to the transmitter with network bandwidth estimations. In one embodiment, the probing sequences can use the content itself to create the probing sequences. The embodiments can be used in video conferencing applications to control how a transmitter of content can adjust transmissions based upon the network bandwidth estimations. In one embodiment, a policy can be used at a transmitter to begin a video transmission with a high frequency target for sending probing sequences (with, e.g., smaller length probing sequences) and transition to a lower frequency target (with, e.g., longer length probing sequences) when network bandwidth deteriorates and then return to the higher frequency target when the network bandwidth improves.
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公开(公告)号：US10523820B2
公开(公告)日：2019-12-31
申请号：US15991905
申请日：2018-05-29
Applicant: Apple Inc.
Inventor： Christopher M. Garrido , Eric L. Chien , Wenhui Xu , Xiaoxiao Zheng , Spencer E. Lewson , Keith W. Rauenbuehler , Komei Harada , Ming Jin , Gurtej Singh G. Chandok , David L. Biderman
Abstract: A first request to form a conference call is received from a first of a plurality of electronic devices. In response to the first request, a conference data structure is generated in a memory. Based on determining the conference call has ended, a second request is transmitted to each of the plurality of electronic devices to return a high-resolution video stream generated by each electronic device during the conference call. In response to the second requests, the high-resolution video stream is received from at least some of the plurality of electronic devices. Each of the received high-resolution video streams is stored in the conference data structure in the memory to generate a completed conference data structure. A notice that the completed conference data structure is available is transmitted to each of the plurality of electronic devices.
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