公开(公告)号：US11349600B2

公开(公告)日：2022-05-31

申请号：US17068795

申请日：2020-10-12

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Zhengye Liu ,  Xidong Wu ,  Jin Wang ,  Bo Han

IPC: H04L1/00 ,  H04L1/18 ,  H04L1/08 ,  H04L12/26 ,  H04L43/0852 ,  H04L43/0829

Abstract: Devices, computer-readable media, and methods for selecting a type of packet loss protection for a network-based communication based upon a latency estimate are disclosed. For example, a processing system including at least one processor may obtain a latency estimate for a network-based communication, determine whether the latency estimate exceeds a latency threshold for selecting a type of packet loss protection, and select, the type of packet loss protection for the network-based communication from among a first type of packet loss protection and a second type of packet loss protection based upon the determining. When the latency estimate is determined to not exceed the latency threshold, the first type of packet loss protection is selected. When the latency estimate is determined to exceed the latency threshold, the second type of packet loss protection is selected.

公开(公告)号：US20220108670A1

公开(公告)日：2022-04-07

申请号：US17551249

申请日：2021-12-15

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Tan Xu ,  Bo Han ,  Eric Zavesky

IPC: G09G5/377 ,  G06Q30/02 ,  H04L29/06

Abstract: Aspects of the subject disclosure may include, for example, presenting a first virtual object in accordance with a first context associated with a first user engaged in a communication session via a first application, presenting a second virtual object in accordance with a second context associated with a second user engaged in the communication session via a second application, identifying a conflict between the presenting of the first virtual object and the presenting of the second virtual object, a presenting of a physical object, or a combination thereof, and responsive to the identifying of the conflict, modifying the first virtual object, the second virtual object, or a combination thereof. Other embodiments are disclosed.

公开(公告)号：US11252600B2

公开(公告)日：2022-02-15

申请号：US16795033

申请日：2020-02-19

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Shu Shi ,  Rittwik Jana ,  Bo Han ,  Bo Chen

IPC: H04W28/02 ,  H04L12/801 ,  H04L12/859 ,  H04L12/26 ,  A63F13/355 ,  H04L12/841 ,  H04L29/06 ,  H04L47/193 ,  H04L47/2475 ,  H04L43/087 ,  H04L43/10 ,  H04L47/283 ,  H04L67/01

Abstract: The described technology is generally directed towards a transport protocol for latency sensitive applications. The disclosed transport protocol is “semi-reliable” in that it allows for specification of an importance of data being transmitted, thereby allowing important data to be sent reliably, while other data can be dropped if necessary, e.g., under bad network conditions. A deadline can be specified for such other data, and if the other data cannot be sent prior to the deadline, it can be dropped. Furthermore, the disclosed transport protocol can allow for early discovery of network jitter. A client device can send regular acknowledgments which identify most recently received data packets as well as a number of “heartbeat transmissions” received at the client device. A server device can use the acknowledgments to discover and respond to jitter.

公开(公告)号：US20220038678A1

公开(公告)日：2022-02-03

申请号：US17500259

申请日：2021-10-13

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Bo Han ,  Manuel Briand ,  Vijay Gopalakrishnan

IPC: H04N13/349 ,  H04N5/445 ,  H04N21/422

Abstract: Aspects of the subject disclosure may include, for example, receiving content that includes a 360-degree video, determining that guidance is enabled with respect to the content, obtaining an input responsive to determining that the guidance is enabled, and obtaining the guidance with respect to a playback of the content, where the obtained guidance is based on the input. Other embodiments are disclosed.

公开(公告)号：US11197066B2

公开(公告)日：2021-12-07

申请号：US17070384

申请日：2020-10-14

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Bo Han ,  Manuel Briand ,  Vijay Gopalakrishnan

IPC: H04N21/4725 ,  H04N21/235 ,  H04N21/435 ,  H04N21/472 ,  H04N21/431 ,  G06F3/0481

Abstract: Aspects of the subject disclosure may include, for example, a method including obtaining media content and an identification of a plurality of points of interest in the media content, receiving a request from a user to view the media content, obtaining information about the user, identifying one or more highlight points based on the information about the user, presenting the media content to the user, and monitoring the user's consumption of the content, determining a field of view of the highlight point, and presenting a guide indicator in the field of view of the user to provide information about the highlight point. Other embodiments are disclosed.

公开(公告)号：US11190820B2

公开(公告)日：2021-11-30

申请号：US16825667

申请日：2020-03-20

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Bo Han ,  Matteo Varvello ,  Vijay Gopalakrishnan

IPC: H04N21/25 ,  H04N5/232 ,  H04N21/414 ,  H04N21/2343 ,  H04N21/442 ,  H04N21/81

Abstract: Aspects of the subject disclosure may include, for example, a method including providing a video presentation to user devices. A latency related to the video presentation is determined for each device; a high-latency user device is identified having greater latency than other, low-latency devices. Field of view information is analyzed for each of the low-latency devices; based on the analyzing, a field of view of the high-latency user device is predicted. In accordance with the predicting, a predicted viewing map for the high-latency user device is generated. The video presentation for the high-latency user device is adjusted based on the predicted viewing map. Other embodiments are disclosed.

公开(公告)号：US11159823B2

公开(公告)日：2021-10-26

申请号：US16447144

申请日：2019-06-20

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Bo Han ,  Jackson Jarrell Pair ,  Vijay Gopalakrishnan ,  Feng Qian

IPC: H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/597 ,  G06T7/73 ,  H04N13/243 ,  H04N13/282

Abstract: In one example, a processing system including at least one processor may obtain at least one frame of a volumetric video, obtain a first viewport of a client device, render a plurality of two-dimensional subframes comprising two-dimensional projections of the at least one frame of the volumetric video, based upon the first viewport of the client device, and transmit the plurality of two-dimensional subframes to the client device. In another example, a processing system including at least one processor may request a volumetric video from a network-based proxy, provide a viewport to the network-based proxy, obtain a plurality of two-dimensional subframes from the network-based proxy in accordance with the viewport, select at least one of the plurality of two-dimensional subframes to present, and display the at least one two-dimensional subframe that is selected.

公开(公告)号：US20210295522A1

公开(公告)日：2021-09-23

申请号：US16824023

申请日：2020-03-19

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Bo Han ,  Cheuk Yiu Ip ,  Eric Zavesky ,  Huanle Zhang

IPC: G06T7/11 ,  G06K9/62 ,  G06T1/60 ,  G06T3/40 ,  G06N3/08

Abstract: Aspects of the subject disclosure may include, for example, a device that has a processing system including a processor; and a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, including downsampling a full point cloud to obtain a downsampled point cloud, wherein the downsampling reduces a data size of the full point cloud; and using a machine-learning model to assign labels for segmentation and object identification to points in the downsampled point cloud, wherein the machine-learning model is trained on the full point cloud. Other embodiments are disclosed.

公开(公告)号：US11108841B2

公开(公告)日：2021-08-31

申请号：US16012481

申请日：2018-06-19

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Bo Han ,  Vijay Gopalakrishnan ,  Jackson Jarrell Pair ,  Vikash Sharma

IPC: H04L29/06 ,  H04N5/232

Abstract: Aspects of the subject disclosure may include, for example, obtaining data indicative, for a frame of a video, of a field of view of a user; determining from a set of homogeneous tiles of the frame a subset of the homogeneous tiles that covers the field of view, wherein the set of homogeneous tiles has been constructed prior to the obtaining of the data; and merging at least a first tile of the set of homogeneous tiles and a second tile of the set of homogenous tiles into a larger tile, wherein the merging is based upon at least one parameter. Other embodiments are disclosed.

公开(公告)号：US11101917B2

公开(公告)日：2021-08-24

申请号：US16877438

申请日：2020-05-18

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Zhengye Liu ,  Xidong Wu ,  Jin Wang ,  Bo Han

IPC: H04L1/00 ,  H04L29/06 ,  H04L12/26 ,  G06F15/16

Abstract: Devices, computer-readable media, and methods for selecting a type of transmission for an immersive visual stream based upon a latency estimate. For instance, a processing system including at least one processor may obtain a latency estimate for an immersive visual stream, determine whether the latency estimate exceeds a latency threshold for selecting a type of transmission for the immersive visual stream, and select the type of transmission for the immersive visual stream from among a field of view restricted type of transmission and a field of view plus out of scene type of transmission based upon the determining. When the latency estimate is determined to not exceed the latency threshold, the field of view restricted type of transmission is selected. When the latency estimate is determined to exceed the latency threshold, the field of view plus out of scene type of transmission is selected.