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公开(公告)号：US20220394212A1
公开(公告)日：2022-12-08
申请号：US17661947
申请日：2022-05-04
申请人： Apple Inc.
发明人： Gurtej Singh G. Chandok , Christopher M. Garrido , Chieh Lu , Daniel B. Pollack , Karthick Santhanam , David L. Biderman , Jinbo Qui , Dazhong Zhang , Jose A. Lozano Hinojosa , Igor Kobzar
摘要： Participant systems in an audiovisual (AV) conferencing can, in one embodiment, use methods to ensure that all participants have a common platform to support AV conferencing, such as a common codec, and also attempt to provide higher quality AV conferencing (e.g., better than the common codec) based on available bandwidth and other criteria. The participant systems can use the common codec as a fallback platform when bandwidth or other criteria dictate a reduction in the quality of the AV conferencing. Other embodiments are also disclosed.
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公开(公告)号：US09992447B2
公开(公告)日：2018-06-05
申请号：US15167582
申请日：2016-05-27
申请人： Apple Inc.
发明人： 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分类号： H04N7/147 , H04N7/148 , H04W36/0022 , H04W36/0094 , H04W36/14 , H04W36/30 , H04W76/10 , H04W76/15 , H04W84/12 , H04W88/06
摘要： 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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公开(公告)号：US20230397270A1
公开(公告)日：2023-12-07
申请号：US18328582
申请日：2023-06-02
申请人： Apple Inc.
发明人： Christopher M. Garrido , Bradley D. Ford , Gurtej Singh G. Chandok , Justin R. Etzine , Karthick Santhanam , Luciano M. Verger , Padmavathy Bhooma
IPC分类号： H04W76/14 , H04N23/63 , G06F3/0346 , H04N23/661 , H04W8/00
CPC分类号： H04W76/14 , H04N23/63 , G06F3/0346 , H04N23/661 , H04W8/005
摘要： Devices, methods, and non-transitory program storage devices are disclosed to enable the automatic establishment of a secure audio/video data streaming connection between electronic devices. For example, a first electronic device may enter into a first state of a peer device advertising protocol, and then, based on a determination that the first electronic device meets a first set of device state criteria (e.g., including at least an orientation state criterion), the first electronic device may enter into a second (e.g., enhanced) state of the peer device advertising protocol. In response to detecting a presence of a second electronic device in its proximity, the first electronic device may connect to the second electronic device via a secure peer-to-peer connection protocol and then send one or more images captured by a first image capture device of the first electronic device to the connected second electronic device via the secure wireless peer-to-peer connection protocol.
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公开(公告)号：US11652722B2
公开(公告)日：2023-05-16
申请号：US17304312
申请日：2021-06-17
申请人： Apple Inc.
发明人： 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
摘要： 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：US20210398563A1
公开(公告)日：2021-12-23
申请号：US17349733
申请日：2021-06-16
申请人： Apple Inc.
发明人： Gurtej Singh G. Chandok , Eric L. Chien , Christopher M. Garrido , Ming Jin , Karthick Santhanam , Brian T. Toombs , Joshua L. Hare , David L. Biderman , Patrick Miauton , Luciano M. Verger
IPC分类号： G11B27/00
摘要： A video playback buffer adjustment system is disclosed. The video playback buffer has a target size, measured in units of time of content, and includes a compressed frames queue and an uncompressed frames queue. The uncompressed frames queue has a minimum threshold queue size. If the size of the uncompressed frames queue falls below the minimum threshold size, then a next encoded frame in the compressed frames queue is removed from the compressed frames queue, decoded, and enqueued in the uncompressed frames queue. If a current size of the playback queue exceeds the target size plus Δ (a hysteresis value), then a playback frame rate is increased, and a presentation time of one or more frames in the uncompressed frames queue is adjusted according to the increased playback frame rate. If the playback queue size is less than the target size minus Δ, the playback speed can be reduced.
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公开(公告)号：US20180352156A1
公开(公告)日：2018-12-06
申请号：US15991866
申请日：2018-05-29
申请人： Apple Inc.
发明人： 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
摘要： Techniques disclosed herein permit a party to identify a first (low-resolution) image as it is displayed on their, for example, smart phone during a video conference call. Identifying information specific to the first image may be collected and a request for a high-resolution copy of the image sent to the party sourcing the transmitted image. The high-resolution image may be sent from the image's sourcing device to the requestor's device during, or after, the video conference call. In some embodiments, the high-resolution image may be sent through an alternate communication channel (e.g., via a chat, social media or email channel). In other embodiments, the high-resolution image may be sent to a network-based service from which the requestor may obtain the image. In one embodiment, the sourcing device may message the requesting device that the image has been sent to the network-based service.
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7.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
申请人： Apple Inc.
发明人： 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
摘要： 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：US20210400338A1
公开(公告)日：2021-12-23
申请号：US17304273
申请日：2021-06-17
申请人： Apple Inc.
发明人： 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分类号： H04N21/44 , H04N21/442 , H04N21/458
摘要： 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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公开(公告)号：US20210399971A1
公开(公告)日：2021-12-23
申请号：US17304312
申请日：2021-06-17
申请人： Apple Inc.
发明人： 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
摘要： 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
申请人： Apple Inc.
发明人： 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
摘要： 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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