Patents by Inventor Karthick Santhanam
Karthick Santhanam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220394212Abstract: 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.Type: ApplicationFiled: May 4, 2022Publication date: December 8, 2022Inventors: 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
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Patent number: 11509423Abstract: A device implementing dynamic redundancy may include at least one processor configured to receive, from another device, packet reception data corresponding to video data previously provided for transmission from the device to the other device and determine, based at least in part on the packet reception data, an amount of redundancy to apply to video data provided for transmission to the other device. The at least one processor may be further configured to determine, based at least in part on the amount of redundancy, an encoding scheme for applying the redundancy to the video data. The at least one processor may be further configured to apply the amount of redundancy to the video data based at least in part on the encoding scheme to generate redundant data items and provide the video data and the redundant data items for transmission to the other device.Type: GrantFiled: August 18, 2020Date of Patent: November 22, 2022Assignee: Apple Inc.Inventors: Daniel B. Pollack, Karthick Santhanam, Qian Sun, Kevin Arthur Robertson, Hsien-Po Shiang, Erik Vladimir Ortega Gonzalez, Christopher M. Garrido, Bradley F. Patterson
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Patent number: 11410700Abstract: 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 ? (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 ?, the playback speed can be reduced.Type: GrantFiled: June 16, 2021Date of Patent: August 9, 2022Assignee: Apple Inc.Inventors: 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
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Patent number: 11392438Abstract: A data processing apparatus is provided comprising first processing circuitry. Interrupt generating circuitry generates an outgoing interrupt in response to the first processing circuitry becoming unresponsive. Interrupt receiving circuitry receives an incoming interrupt, which indicates that second processing circuitry has become unresponsive, and in response to receiving the incoming interrupt, causes the data processing apparatus to access data managed by the second processing circuitry.Type: GrantFiled: February 9, 2017Date of Patent: July 19, 2022Assignee: Arm LimitedInventors: Anitha Kona, Michael Wayne Garner, Randall L. Jones, Tessil Thomas, Seow Chuan Lim, Karthick Santhanam, Liana Christine Nicklaus
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Publication number: 20220103611Abstract: 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.Type: ApplicationFiled: February 4, 2021Publication date: March 31, 2022Inventors: Daniel B. POLLACK, Karthick SANTHANAM, Christopher M. GARRIDO, Jingyao ZHANG, Ming JIN, Hyeonkuk JEONG
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Publication number: 20210398563Abstract: 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 ? (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 ?, the playback speed can be reduced.Type: ApplicationFiled: June 16, 2021Publication date: December 23, 2021Inventors: 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
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Publication number: 20210400338Abstract: 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.Type: ApplicationFiled: June 17, 2021Publication date: December 23, 2021Inventors: 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
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Patent number: 11184415Abstract: Techniques presented herein provide an improved relay user experience and improved management of scarce computing and network resources as the number of relay endpoints increases. A sourcing endpoint device may generate a media feed, such as video and/or audio feed, representing contribution from a conference participant. The sourcing endpoint device may generate a priority value for the media feed, and the priority value may be transmitted to other members of the relay along with the input feed. Priority values of the different relay participants may be used by other devices, for example, intermediate servers or receiving endpoint devices, to manage aspects of the relay. For example, a relay server may prune streams from select endpoint devices based on relative priority values received from those devices. Alternatively, receiving endpoint devices may alter presentation of received feeds based on their associated priority values.Type: GrantFiled: May 7, 2019Date of Patent: November 23, 2021Assignee: Apple Inc.Inventors: Christopher M. Garrido, Dazhong Zhang, Karthick Santhanam, Patrick Miauton, Xiaoxiao Zheng, Bess Chan, Peter Shiang, Sudeng Hu, Peikang Song, Xiaosong Zhou
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Patent number: 11109042Abstract: Systems and methods for coding a video to be overlaid by annotations are devised. A motion compensated predictive coding is employed, wherein coding parameters of video pixel blocks are determined based on the pixel blocks' relation to the annotations. A decoder decodes the video and annotates it based on metadata, obtained from the coder or other sources, describing the annotations' appearance and rendering mode.Type: GrantFiled: May 23, 2019Date of Patent: August 31, 2021Assignee: Apple Inc.Inventors: Sudeng Hu, Xing Wen, Jae Hoon Kim, Peikang Song, Hang Yuan, Dazhong Zhang, Xiaosong Zhou, Hsi-Jung Wu, Christopher Garrido, Ming Jin, Patrick Miauton, Karthick Santhanam
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Patent number: 10999767Abstract: A device implementing the subject technology may include at least one processor configured to receive an indication of a task being performed at an other device. The at least one processor is further configured to perform, in response to receipt of the indication, one or more preliminary operations in anticipation of receiving a handoff of the task. The at least one processor is further configured to receive, after performing the one or more preliminary operations, a notification that the task is being handed off. The at least one processor is further configured to receive the handoff of the task from the other device. The at least one processor is further configured to continue to perform the task based at least in part on the one or more preliminary operations that were performed prior to receiving the notification that the task is being handed off.Type: GrantFiled: September 27, 2018Date of Patent: May 4, 2021Assignee: Apple Inc.Inventors: 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
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Publication number: 20210075698Abstract: A device implementing a system for packet loss management may include a memory and at least one processor configured to identify a plurality of categories of packets provided for transmission to an electronic device. The at least one processor may be further configured to determine a respective packet loss value for a respective category of the plurality of categories of packets. The at least one processor may be further configured to identify a particular category of the plurality of categories of packets for which the determined respective packet loss value satisfies a packet loss condition. The at least one processor may be further configured to adjust subsequent transmission of packets in the particular category of packets based at least in part on the packet loss condition being satisfied by the determined respective packet loss value for the particular category of packets.Type: ApplicationFiled: August 18, 2020Publication date: March 11, 2021Inventors: Daniel B. POLLACK, Qian SUN, Karthick SANTHANAM, Christopher M. GARRIDO, Bradley F. PATTERSON, Kevin Arthur ROBERTSON, Hsien-Po SHIANG, Erik Vladimir ORTEGA GONZALEZ
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Publication number: 20210075544Abstract: A device implementing dynamic redundancy may include at least one processor configured to receive, from another device, packet reception data corresponding to video data previously provided for transmission from the device to the other device and determine, based at least in part on the packet reception data, an amount of redundancy to apply to video data provided for transmission to the other device. The at least one processor may be further configured to determine, based at least in part on the amount of redundancy, an encoding scheme for applying the redundancy to the video data. The at least one processor may be further configured to apply the amount of redundancy to the video data based at least in part on the encoding scheme to generate redundant data items and provide the video data and the redundant data items for transmission to the other device.Type: ApplicationFiled: August 18, 2020Publication date: March 11, 2021Inventors: Daniel B. POLLACK, Karthick SANTHANAM, Qian SUN, Kevin Arthur ROBERTSON, Hsien-Po SHIANG, Erik Vladimir ORTEGA GONZALEZ, Christopher M. GARRIDO, Bradley F. PATTERSON
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Publication number: 20210075850Abstract: A device implementing a system for multipath connection management may include first and second local communication interfaces, and a processor configured to establish a primary connection for communicating between the first local communication interface and a first remote communication interface of an other device, and a secondary connection for communicating between the second local communication interface and a second remote communication interface. The processor may be configured to transmit application and control data over the primary connection and concurrently transmit a copy of control data over the secondary connection. The processor may be configured to determine that a degradation of the quality of the primary connection is attributable to the other device. The processor may be configured to switch the secondary connection to the first local communication interface and the second remote communication interface.Type: ApplicationFiled: August 28, 2020Publication date: March 11, 2021Inventors: Daniel B. POLLACK, Padmavathy BHOOMA, Jingyao ZHANG, Chieh LU, Karthick SANTHANAM, Christopher M. GARRIDO, Bradley F. PATTERSON, Kevin Arthur ROBERTSON, Hsien-Po SHIANG, Qian SUN, Erik Vladimir ORTEGA GONZALEZ
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Patent number: 10931725Abstract: 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.Type: GrantFiled: September 28, 2018Date of Patent: February 23, 2021Assignee: Apple Inc.Inventors: 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
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Patent number: 10911992Abstract: 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.Type: GrantFiled: September 27, 2018Date of Patent: February 2, 2021Assignee: Apple Inc.Inventors: 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
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Publication number: 20200382806Abstract: 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.Type: ApplicationFiled: May 26, 2020Publication date: December 3, 2020Inventors: 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
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Publication number: 20190373270Abstract: Systems and methods for coding a video to be overlaid by annotations are devised. A motion compensated predictive coding is employed, wherein coding parameters of video pixel blocks are determined based on the pixel blocks' relation to the annotations. A decoder decodes the video and annotates it based on metadata, obtained from the coder or other sources, describing the annotations' appearance and rendering mode.Type: ApplicationFiled: May 23, 2019Publication date: December 5, 2019Inventors: Sudeng HU, Xing WEN, Jae Hoon KIM, Peikang SONG, Hang YUAN, Dazhong ZHANG, Xiaosong ZHOU, Hsi-Jung WU, Christopher GARRIDO, Ming JIN, Patrick MIAUTON, Karthick SANTHANAM
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Publication number: 20190342351Abstract: Techniques presented herein provide an improved relay user experience and improved management of scarce computing and network resources as the number of relay endpoints increases. A sourcing endpoint device may generate a media feed, such as video and/or audio feed, representing contribution from a conference participant. The sourcing endpoint device may generate a priority value for the media feed, and the priority value may be transmitted to other members of the relay along with the input feed. Priority values of the different relay participants may be used by other devices, for example, intermediate servers or receiving endpoint devices, to manage aspects of the relay. For example, a relay server may prune streams from select endpoint devices based on relative priority values received from those devices. Alternatively, receiving endpoint devices may alter presentation of received feeds based on their associated priority values.Type: ApplicationFiled: May 7, 2019Publication date: November 7, 2019Inventors: Christopher M. Garrido, Dazhong Zhang, Karthick Santhanam, Patrick Miauton, Xiaoxiao Zheng, Bess Chan, Peter Shiang, Sudeng Hu, Peikang Song, Xiaosong Zhou
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Patent number: 10257474Abstract: An integrated accessory control system can efficiently set up a new media streaming session with one or more accessories. A session identifier for the new session, as well as a destination address and security parameters can be generated. A data object comprising the generated elements can be written to a resource location. Additionally, a second data object comprising the session identifier, a streaming source address, a source identifier, and additional security parameters can be read from the resource location. A third data object comprising the session identifier, a session start command, and codec parameters can then be generated. The third data object can also be written to the resource location. Further, streamed media data conforming to the codec parameters and the security parameters may be received.Type: GrantFiled: September 23, 2016Date of Patent: April 9, 2019Assignee: Apple Inc.Inventors: Anush G. Nadathur, Christopher M. Garrido, Vinay A. Ramaswamy, Karthick Santhanam, Joe S. Abuan, Kevin P. McLaughlin, Srinivas Rama, Ming Jin, Hsien-Po Shiang, Wenhui Xu
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Publication number: 20190104446Abstract: A device implementing the subject technology may include at least one processor configured to receive an indication of a task being performed at an other device. The at least one processor is further configured to perform, in response to receipt of the indication, one or more preliminary operations in anticipation of receiving a handoff of the task. The at least one processor is further configured to receive, after performing the one or more preliminary operations, a notification that the task is being handed off. The at least one processor is further configured to receive the handoff of the task from the other device. The at least one processor is further configured to continue to perform the task based at least in part on the one or more preliminary operations that were performed prior to receiving the notification that the task is being handed off.Type: ApplicationFiled: September 27, 2018Publication date: April 4, 2019Inventors: Joe S. ABUAN, Ian J. BAIRD, Xiaosong ZHOU, Christopher M. GARRIDO, Dazhong ZHANG, Keith W. RAUENBUEHLER, Yan YANG, Patrick MIAUTON, Eric L. CHEN, Berkat S. TUNG, Karthick SANTHANAM