Patents by Inventor Bo Han

Bo Han 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).

  • Publication number: 20220046112
    Abstract: Aspects of the subject disclosure may include, for example, a method comprising obtaining media content; receiving a request from equipment of a user to view the media content; identifying a predicted field of view of the user; sending a base layer of the media content to the equipment of the user using a first stream; and sending a first enhancement layer of the predicted field of view to the equipment of the user using a second stream. The first stream and the second stream may utilize different protocols, different servers, different buffer sizes, and/or a combination thereof. While the first stream may include an entire 360 degrees of the base layer of the media content, the second stream may be limited to the first enhancement layer of the predicted field of view of the media content. Other embodiments are disclosed.
    Type: Application
    Filed: October 22, 2021
    Publication date: February 10, 2022
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Zhengye Liu, Bo Han, Jin Wang, Xidong Wu
  • Publication number: 20220046223
    Abstract: In one example, a processing system including at least one processor may obtain predicted viewports of a plurality of mobile computing devices for an immersive visual stream, determine at least a first tile of the immersive visual stream that is within the predicted viewports of at least two mobile computing devices of the plurality of mobile computing devices, select a first mobile computing device of the at least two mobile computing devices to transmit the first tile, and transmit to the first mobile computing device, the first tile and at least one identification of at least one other mobile computing device of the at least two mobile computing devices to which the first mobile computing device is to forward the first tile.
    Type: Application
    Filed: October 25, 2021
    Publication date: February 10, 2022
    Inventors: Bo Han, Shu Shi, Rittwik Jana
  • Publication number: 20220038678
    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.
    Type: Application
    Filed: October 13, 2021
    Publication date: February 3, 2022
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Bo Han, Manuel Briand, Vijay Gopalakrishnan
  • Patent number: 11238286
    Abstract: The present disclosure provides method, apparatus and system for detecting contents expressing emotions from a video. The method may comprise: dividing the video into a plurality of clips; extracting, from a first clip and at least one second clip of the plurality of clips, features associated with the first clip; determining whether the first clip expresses emotions based on the features associated with the first clip; and building an index containing the first clip based on the features associated with the first clip if the first clip expresses emotions.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: February 1, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Yilong Tang, Bo Han
  • Patent number: 11238835
    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.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: February 1, 2022
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Tan Xu, Bo Han, Eric Zavesky
  • Publication number: 20220029897
    Abstract: Systems, computer-readable media, and methods are disclosed for parallel data processing for service function chains with network functions spanning multiple servers. An example system includes a first server hosting a first network function of a service function chain, a second server hosting a second network function of the service function chain, a mirror function deployed in a first switch to replicate a plurality of packets received by the system and to send respective copies of the plurality of packets to the first network function and to at least one of the second network function and a third network function of the service function chain, and a merge function deployed in a second switch to merge respective outputs of the first network function and the at least one of the second network function and the third network function.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Inventors: Bo Han, Vijay Gopalakrishnan, Muhammad Bilal Anwer, Zhi-Li Zhang, Yang Zhang
  • Patent number: 11233095
    Abstract: A display substrate, a manufacturing method of the display substrate and a display device are provided. The display substrate includes a plurality of sub-pixels arranged in an array in a display area. The display area includes a boundary extending in non-straight line. The plurality of sub-pixels arranged in the array include a plurality of first sub-pixels whose distances to the boundary extending in non-straight line are less than a preset threshold and a plurality of second sub-pixels other than the plurality of first sub-pixels, where at least one of the first sub-pixels is smaller in area than each of the second sub-pixels.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: January 25, 2022
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lei Lv, Bo Han, Fei Xu, Jie Gao, Jun Hong, Jiuyang Zhu, Mingwei Zhang, Jingyong Li, Chunmin Xu
  • Patent number: 11223816
    Abstract: The present invention provides a projector including a laser module and a lens module, wherein the lens module includes a plurality of lens and a plurality of diffractive optical elements. In the operations of the projector, the laser module is arranged to generate at least one laser beam; each of the lenses is arranged to receive one of the at least one laser beam to generate a collimated laser beam; and the diffractive optical elements correspond to the lenses, respectively, and each of the diffractive optical elements is arranged to receive the collimated laser beam from the corresponding lens to generate an image. The images generated by the diffractive optical elements form a projected image of the projector. By using the projector of the present invention, the projected image may have higher resolution or field of view that is advantageous for the 3D sensing system.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: January 11, 2022
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Biing-Seng Wu, Han-Yi Kuo, Bo-Han Lyu, Yin-Dong Lu, Kuan-Ming Chen, Meng-Ko Tsai
  • Patent number: 11206706
    Abstract: In one example, a method and apparatus for web browsing on multihomed mobile devices having multiple communication interfaces are disclosed. In one example, the method establishes a primary multiple path transmission control protocol subflow for the transfer of a resource from a server to a user endpoint device. The method then determines a threshold of resource size. When the size of the resource is determined to exceed the threshold, the method establishes a secondary multipath transmission control protocol connection that cooperates with the primary multiple path transmission control protocol subflow for the transfer of the resource from the server to the user endpoint device.
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: December 21, 2021
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Bo Han, Rittwik Jana, Lusheng Ji, Feng Qian
  • Patent number: 11200704
    Abstract: Aspects of the subject disclosure may include, for example, encoding a point cloud in a first frame of volumetric video in an octree format and identifying a first group of points of the point cloud, resulting in a first base layer including a base layer, a first enhancement layer and a second enhancement layer. Each layer includes different points from the point cloud, with the second enhancement layer including all points in each octet of leaf nodes in the octree format of the point cloud that are not in the base layer and the first enhancement layer. The first base layer of the point cloud is provided over a communication network to a media device and the first enhancement layer is also provided responsive to a determination of sufficient available bandwidth in the communication network. Other embodiments are disclosed.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: December 14, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Bo Han, Cheuk Yiu Ip, Jackson Jarrell Pair
  • Publication number: 20210385005
    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.
    Type: Application
    Filed: August 23, 2021
    Publication date: December 9, 2021
    Inventors: Zhengye Liu, Xidong Wu, Jin Wang, Bo Han
  • Patent number: 11196842
    Abstract: In one example, a processing system of a mobile computing device including at least one processor may capture visual information of a first location, transmit a recognition request to a first server, the recognition request comprising the visual information, obtain a first recognition result from the first server comprising first annotation content associated with a first item in the visual information of the first location, the first recognition result further comprising visual information of the first item, present at least a portion of first annotation content via the mobile computing device, store the first annotation content and the visual information of the first item in a local cache, detect a first additional mobile computing device via a non-cellular wireless communication modality, and share the first annotation content and the visual information of the first item with the first additional mobile computing device via the non-cellular wireless communication modality.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: December 7, 2021
    Assignees: AT&T INTELLECTUAL PROPERTY I, L.P., THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Bo Han, Wenxiao Zhang, Pan Hui, Vijay Gopalakrishnan, Cheuk Yiu Ip
  • Patent number: 11197066
    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.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: December 7, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Bo Han, Manuel Briand, Vijay Gopalakrishnan
  • Patent number: 11190786
    Abstract: In one example, a processing system including at least one processor may obtain viewport information of a mobile computing device associated with a panoramic video, map the viewport information to a plurality of blocks of a frame of the panoramic video in accordance with a cube map projection of the frame, encode the plurality of blocks into a projected frame, and transmit the projected frame to the mobile computing device. In another example, a processing system of a mobile computing device including at least one processor may obtain viewport information of the device associated with a panoramic video, transmit to a server the viewport information, obtain from the server a projected frame of the panoramic video comprising a plurality of blocks of a frame of the panoramic video that are associated with the viewport information in accordance with a cube map projection of the frame, and buffer the projected frame.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: November 30, 2021
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Bo Han, Zhengye Liu, Shu Shi
  • Patent number: 11190817
    Abstract: Aspects of the subject disclosure may include, for example, embodiments for obtaining video content from a video content server, determining a quality parameter for each of the plurality of adjusted video content, and adjusting the video content to generate the plurality of adjusted video content. Each of the plurality of adjusted video content comprises a different point cloud density according to the quality parameter. Further embodiments can include receiving a request for the video content from a video content application on a communication device, and determining a distance from a viewpoint to a point-cloud object on the video content application of the communication device. Additional embodiments can include selecting an adjusted video content based on the distance from the viewpoint to the point-cloud object and the quality parameter of the adjusted video content, and providing the adjusted video content to the communication device for presentation. Other embodiments are disclosed.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: November 30, 2021
    Assignees: AT&T Intellectual Property I, L.P., Regents of the University of Minnesota
    Inventors: Bo Han, Cheuk Yiu Ip, Jackson Jarrell Pair, Feng Qian
  • Patent number: 11190820
    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.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: November 30, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Bo Han, Matteo Varvello, Vijay Gopalakrishnan
  • Patent number: 11190771
    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 selecting a downsampling technique for removing points from a point cloud in a volumetric video; selecting a data reduction percentage for a target bitrate for streaming the volumetric video; downsampling the point cloud in each frame of the volumetric video for the target bitrate using the downsampling technique and data reduction percentage selected, thereby creating a downsampled volumetric video; and compressing and encoding the downsampled volumetric video, thereby creating an encoded volumetric video. Other embodiments are disclosed.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: November 30, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Bo Han, Cheuk Yiu Ip, Jackson Jarrell Pair
  • Patent number: 11184461
    Abstract: Aspects of the subject disclosure may include, for example, a method comprising obtaining media content; receiving a request from equipment of a user to view the media content; identifying a predicted field of view of the user; sending a base layer of the media content to the equipment of the user using a first stream; and sending a first enhancement layer of the predicted field of view to the equipment of the user using a second stream. The first stream and the second stream may utilize different protocols, different servers, different buffer sizes, and/or a combination thereof. While the first stream may include an entire 360 degrees of the base layer of the media content, the second stream may be limited to the first enhancement layer of the predicted field of view of the media content.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: November 23, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Zhengye Liu, Bo Han, Jin Wang, Xidong Wu
  • Publication number: 20210360046
    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.
    Type: Application
    Filed: July 28, 2021
    Publication date: November 18, 2021
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Bo Han, Vijay Gopalakrishnan, Jackson Jarrell Pair, Vikash Sharma
  • Patent number: 11178390
    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.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: November 16, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Bo Han, Manuel Briand, Vijay Gopalakrishnan