公开(公告)号：US20190174186A1

公开(公告)日：2019-06-06

申请号：US16238129

申请日：2019-01-02

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

Inventor： Shuai Hao ,  Bo Han ,  Moo-Ryong Ra

IPC: H04N21/442 ,  H04N21/462 ,  G06K9/00

Abstract: Aspects of the subject disclosure may include, for example, a method including detecting attention by a user to a presentation displayed at an audiovisual presentation device. A real-time image of the user is obtained and stored local to the audiovisual presentation device. The image is analyzed to determine a presence in the image of a facial feature of the user; the device determines, based on the presence of the facial feature, whether the user is attentive to the presentation. When the user is not attentive to the presentation, a procedure is initiated at the audiovisual presentation device to reduce resource consumption by the device; the procedure can include continuing the presentation at a video quality level lower than at the beginning of the presentation, reducing a brightness of the display, continuing the presentation with only the audio portion, and discontinuing the presentation. Other embodiments are disclosed.

公开(公告)号：US20180255560A1

公开(公告)日：2018-09-06

申请号：US15971391

申请日：2018-05-04

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

Inventor： Bo Han ,  Lusheng Ji ,  Vijay Gopalakrishnan ,  Feng Qian

IPC: H04W72/12 ,  H04L12/26 ,  H04W88/06

CPC classification number: H04W72/1215 ,  H04L43/0852 ,  H04L43/0882 ,  H04W28/08 ,  H04W88/06

Abstract: Leveraging multiple network interfaces, such as Wi-Fi and cellular, on mobile devices can improve user experience for various applications. Deadline-aware MPTCP scheduling can complement existing MPTCP scheduler. The deadline-aware MPTCP scheduler can dynamically select transmission paths to minimize cellular usage while satisfying data transfer deadlines. The deadline-aware MPTCP scheduler can also address several challenges, such as determining the appropriate traffic pattern over cellular paths, designing proper APIs between MPTCP and applications, and making the scheduler functionality robust and lightweight.

公开(公告)号：US09544843B2

公开(公告)日：2017-01-10

申请号：US15005585

申请日：2016-01-25

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

Inventor： Lusheng Ji ,  Robert Raymond Miller, II ,  Bo Han

IPC: H04W76/02 ,  H04W48/18 ,  H04W36/14 ,  H04J11/00 ,  H04W72/04 ,  H04W28/08 ,  H04W84/12 ,  H04W88/06

CPC classification number: H04W36/14 ,  H04J11/0023 ,  H04W28/08 ,  H04W48/18 ,  H04W72/0406 ,  H04W72/042 ,  H04W76/12 ,  H04W76/16 ,  H04W84/12 ,  H04W88/06

Abstract: Improved non-cellular (e.g., Wi-Fi) link integration with a cellular (e.g., LTE) network is described. The improved link integration can relate to utilizing an eNodeB device (e.g., residing in a radio access network portion of a cellular network) as an anchor point rather than a packet data network gateway device (e.g., residing in a core network portion of the cellular network) utilized by other approaches. The improved link integration can maintain full compliance with or support for other approaches, and can reduce signaling overhead, simplify quality-of-service management, and/or provide a more rapid reaction to changes of access, particularly in cases where the eNodeB device and a non-cellular access point device are co-located.

Abstract translation: 描述了改进的与蜂窝（例如LTE）网络的非蜂窝（例如，Wi-Fi）链路集成。 改进的链路集成可以涉及将eNodeB设备（例如，驻留在蜂窝网络的无线电接入网络部分中）用作锚点而不是分组数据网络网关设备（例如，驻留在蜂窝网络的核心网络部分中） 网络）。 改进的链路集成可以保持对其他方法的完全符合或支持，并且可以减少信令开销，简化服务质量管理，和/或对接入改变提供更快速的反应，特别是在eNodeB设备和 非蜂窝接入点设备是共同定位的。

公开(公告)号：US20130272166A1

公开(公告)日：2013-10-17

申请号：US13915009

申请日：2013-06-11

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

Inventor： Lusheng Ji ,  Bo Han ,  Robert R. Miller II

IPC: H04W40/12

CPC classification number: H04W40/12 ,  H04L45/00 ,  H04L45/38 ,  H04L47/10 ,  H04L47/125 ,  H04L47/14 ,  H04L47/2408 ,  H04L47/286 ,  H04W40/02

Abstract: A path configuration message is sent to nodes in a multi-hop network along a path between a source node and destination nodes. The path configuration message includes path information and one or more special channel access parameters associated with the path information. The path configuration message temporarily changes the channel access priority for packets matching the path information in the special message. The nodes along the path therefore have higher channel access priority relative to other nearby nodes and other traffic flows. At the end of the a length of a time determined by a time to live parameter in the special message, the nodes resume using default channel access parameters in place of the special channel access parameters for packets matching the path information.

Abstract translation: 路径配置消息沿着源节点和目的节点之间的路径发送到多跳网络中的节点。 路径配置消息包括与路径信息相关联的路径信息和一个或多个特殊信道访问参数。 路径配置消息临时更改与特殊消息中的路径信息匹配的数据包的通道访问优先级。 因此，沿着路径的节点相对于其他附近的节点和其他业务流具有较高的信道接入优先级。 在由特殊消息中的生存时间参数确定的时间长度结束时，节点恢复使用默认信道接入参数，代替与路径信息匹配的分组的特殊信道接入参数。

公开(公告)号：US20250097399A1

公开(公告)日：2025-03-20

申请号：US18959016

申请日：2024-11-25

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

Inventor： Bo Han ,  Jackson Jarrell Pair ,  Tan Xu

IPC: H04N13/194 ,  G06T1/60 ,  G06T9/40 ,  H04N7/01 ,  H04N13/111 ,  H04N13/161

Abstract: A network processing system obtains a viewport of a client device for volumetric video and a two-dimensional (2D) subframe of a frame of volumetric video is obtained associated with the viewport. Viewports may be obtained from the client device or be predicted. 2D subframes and reduced resolution versions of frames can be transmitted to the client device. A client device may request volumetric video from the network processing system and provides a viewport to the network processing system. The client device may obtain from the network processing system reduced resolution versions of volumetric video frames and 2D subframes in accordance with the viewport. The client device may determine whether a current viewport matches the viewport associated with the obtained 2D subframe and provides a display based on either that subframe (upon a match) or a 2D perspective of the reduced resolution frame associated with the current viewport (if no match).

公开(公告)号：US12167276B2

公开(公告)日：2024-12-10

申请号：US18302391

申请日：2023-04-18

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

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

IPC: H04W28/02 ,  A63F13/355 ,  H04L43/087 ,  H04L43/10 ,  H04L47/193 ,  H04L47/2475 ,  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：US12010504B2

公开(公告)日：2024-06-11

申请号：US17893231

申请日：2022-08-23

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

Inventor： Bo Han ,  Manuel Briand ,  Vijay Gopalakrishnan

IPC: H04N21/233 ,  H04N21/218 ,  H04S7/00

CPC classification number: H04S7/303 ,  H04N21/21805 ,  H04N21/233 ,  H04S2400/11

Abstract: Aspects of the subject disclosure may include, for example, a method for spherical video streaming over a network by a processing system including a processor, the method including prefetching audio data for rendering the spherical video; determining whether there is a single source or a plurality of sources of audio in the audio data; responsive to a determination that there is only one dominant source of the audio in the audio data, prefetching video data in a field of view centered on spatial coordinates of the dominant source of audio; responsive to a determination that there is the plurality of sources of the audio in the audio data, sorting the plurality of sources of the audio according to an estimated sound source energy for each source in the plurality of sources, thereby creating a sorted list of the plurality of sources; and prefetching video data in plural fields of view centered on spatial coordinates of each audio source in the sorted list of the plurality of sources, wherein the prefetching is performed in an order corresponding to the sorted list, and wherein the prefetching occurs within an available bandwidth of the network. Other embodiments are disclosed.

公开(公告)号：US20230147907A1

公开(公告)日：2023-05-11

申请号：US18152548

申请日：2023-01-10

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

Inventor： Bo Han ,  Sassan Pejhan ,  Zhengye Liu

IPC: H04N21/44 ,  H04N21/442 ,  H04N21/414 ,  H04N21/81 ,  H04N21/4223

CPC classification number: H04N21/44016 ,  H04N21/44218 ,  H04N21/41407 ,  H04N21/812 ,  H04N21/4223

Abstract: Aspects of the subject disclosure may include, for example, embodiments include obtaining video content, the video content comprises a plurality of frames, monitoring, by an image sensor, a facial feature of a user to determine a visual focus of the user in relation to the video content, and detecting from a group of frames of the plurality of frames at least a reduction in movements of objects in the group of frames. Further embodiments include determining, according to the monitoring and the detecting, a measure of attention of the user within a region of the group of frames, determining that the measure of attention of the user within the region of the group of frames satisfies a threshold, and embedding in at least a portion of subsequent frames of the plurality of frames a visual advertisement in the region via a communication device. Other embodiments are disclosed.

公开(公告)号：US11641499B2

公开(公告)日：2023-05-02

申请号：US17513532

申请日：2021-10-28

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：US20230121616A1

公开(公告)日：2023-04-20

申请号：US18067282

申请日：2022-12-16

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

Inventor： Bo Han ,  Zhengye Liu ,  Chenfei Gao

IPC: H04N21/422 ,  H04N21/81 ,  H04N21/44 ,  H04N21/458 ,  H04N21/466

Abstract: Aspects of the subject disclosure may include, for example, obtaining one or more signals, the one or more signals being based upon brain activity of a viewer while the viewer is viewing media content; predicting, based upon the one or more signals, a first predicted desired viewport of the viewer; obtaining head movement data associated with the media content; predicting, based upon the head movement data, a second predicted desired viewport of the viewer; comparing the first predicted desired viewport to the second predicted desired viewport, resulting in a comparison; and determining, based upon the comparison, to use the first predicted desired viewport to facilitate obtaining a first subsequent portion of the media content or to use the second predicted desired viewport to facilitate obtaining a second subsequent portion of the media content. Other embodiments are disclosed.