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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：US20230098082A1
公开(公告)日：2023-03-30
申请号：US17485298
申请日：2021-09-24
Applicant: Apple Inc.
Inventor： Sudeng Hu , David L. Biderman , Christopher M. Garrido , Hsi-Jung Wu , Xiaosong Zhou , Dazhong Zhang , Jinbo Qiu , Karthick Santhanam , Hang Yuan , Joshua L. Hare , Luciano M. Verger , Kevin Arthur Robertson , Sasanka Vemuri
IPC: H04N19/105 , H04N19/177 , H04N19/124 , H04N19/146 , H04N19/172
Abstract: In an example method, a system receives a plurality of frames of a video, and generates a data structure representing the video and representing a plurality of temporal layers. Generating the data structure includes: (i) determining a plurality of quality levels for presenting the video, where each of the quality levels corresponds to a different respective sampling period for sampling the frames of the video, (ii) assigning, based on the sampling periods, each of the frames to a respective one of the temporal layers of the data structure, and (iii) indicating, in the data structure, one or more relationships between (a) at least one the frames assigned to at least one of the temporal layers of the data structure, and (b) at least another one of the frames assigned to at least another one of the temporal layers of the data structure. Further, the system outputs the data structure.
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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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公开(公告)号：US10911992B2
公开(公告)日：2021-02-02
申请号：US16145055
申请日：2018-09-27
Applicant: Apple Inc.
Inventor： Joe S. Abuan , Ian J. Baird , Xiaosong Zhou , Christopher M. Garrido , Dazhong Zhang , Keith W. Rauenbuehler , Yan Yang , Patrick Miauton , Eric L. Chien , Berkat S. Tung , Karthick Santhanam
IPC: H04W72/12 , H04W36/00 , H04L29/08 , H04W4/08 , H04L29/06 , H04W12/04 , H04W12/06 , G06F9/48 , H04W36/02 , H04L12/18 , H04L9/08 , H04B17/318 , H04B17/336
Abstract: A device implementing the subject technology may include at least one processor configured to receive a plurality of buffer reports from a plurality of other devices, each of the plurality of buffer reports indicating a current target buffer level for a respective one of the plurality of other devices. The at least one processor may be further configured to determine a group target buffer level based at least in part on the current target buffer levels of the plurality of other devices and a current target buffer level of the at least one buffer. The at least one processor may be further configured to transmit the group target buffer level to the plurality of other devices. The at least one processor may be further configured to manage an occupancy of the at least one buffer based at least in part on the group target buffer level.
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Patent Agency Ranking
公开(公告)号：US12266365B2
公开(公告)日：2025-04-01
申请号：US17889110
申请日：2022-08-16
Applicant: Apple Inc.
Inventor： Erik D. Hornberger , James A. Forrest , Christopher M. Garrido , Patrick Miauton , Bradley F. Patterson , Karthick Santhanam , Luciano M. Verger
Abstract: Systems and processes for providing textual representations for a communication session are provided. For example, at least one audio input is received at an electronic device, wherein each audio input of the at least one audio input is associated with a respective priority level. A priority level of an audio input detected at a microphone of the electronic device is determined, wherein a highest priority level among the determined priority level and each received priority level corresponding to the at least one audio input is identified. A textual representation of a respective audio input corresponding to the identified highest priority level is obtained, wherein the obtained textual representation is displayed on a display of the electronic device.
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公开(公告)号：US20250080933A1
公开(公告)日：2025-03-06
申请号：US18949726
申请日：2024-11-15
Applicant: Apple Inc.
Inventor： Sean A. Ramprashad , Peter D. Callaway , Jae Woo Chang , Martin E. Johnson , Daniel K. Boothe , Kostyantyn Komarov , Patrick Miauton , Christopher M. Garrido , Austin W. Shyu , Karthick Santhanam
IPC: H04S3/00 , G06F3/0487 , H04R3/00 , H04S5/00 , H04S7/00
Abstract: A method performed a local device that is communicatively coupled with several remote devices, the method includes: receiving, from each remote device with which the local device is engaged in a communication session, an input audio stream; receiving, for each remote device, a set parameters; determining, for each input audio stream, whether the input audio stream is to be 1) rendered individually or 2) rendered as a mix of input audio streams based on the set of parameters; for each input audio stream that is determined to be rendered individually, spatially rendering the input audio stream as an individual virtual sound source that contains only that input audio stream; and for input audio streams that are determined to be rendered as the mix of input audio streams, spatially rendering the mix of input audio streams as a single virtual sound source that contains the mix of input audio streams.
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18.发明申请公开(公告)号：US20240406795A1
公开(公告)日：2024-12-05
申请号：US18733454
申请日：2024-06-04
Applicant: Apple Inc.
Inventor： Omar Contigiani , Ashwin Ramesh , Christopher M. Garrido , Erik Vladimir Ortega Gonzalez , Hsien-Po Shiang , Ming Jin , David L. Biderman , Jingwen Du , Ka Ki Lai , Karthick Santhanam
Abstract: Methods and systems are for receiving network data representing a quality of a communication link in a network, the network data comprising a bandwidth value representing an available bandwidth for the communication link; detecting, based on the network data, that the available bandwidth has changed or will change from a first bandwidth level to a second bandwidth level; determining a probability that the network is congested; when the probability satisfies a threshold value, adjusting a bitrate for the communications link to a first value that enables network congestion to clear; when the probability does not satisfy the threshold value, adjusting the bitrate for the communications link to a second value that fully utilizes the second bandwidth level.
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公开(公告)号：US20240305682A1
公开(公告)日：2024-09-12
申请号：US18600378
申请日：2024-03-08
Applicant: Apple Inc.
Inventor： Jay Mayur Khandhar , Borna Ghavam , Jinbo Qiu , Christopher M. Garrido , Karthick Santhanam , Patrick Miauton , Xiaosong Zhou , Dazhong Zhang , Kristian D. Pereira , Dan Miao
CPC classification number: H04L65/762 , G06F3/013 , G06T13/40 , G06V10/25
Abstract: A technique for transmitting data in a copresence environment includes initiating a virtual communication session between a local device and remote devices in a shared copresence environment, where each of the plurality of sending devices are transmitting a sending quality data stream in the virtual communication session. A region of interest for the local device is determined that includes a portion of the copresence environment. The local device subscribes to a first quality data stream for the remote devices represented in the region of interest, and a second quality data stream for the remote devices not represented in the region of interest.
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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
Applicant: Apple Inc.
Inventor： 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
Abstract: 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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