Patents by Inventor Yongdong Zhao
Yongdong Zhao 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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Patent number: 11941979Abstract: The present application discloses a traffic light control method for an urban road network based on expected return estimation, which uses C-V2X wireless communication technology to obtain real-time information of all vehicles and traffic state in the road network from vehicle-mounted terminals, and adaptively and dynamically controls the phase transformation of the traffic light. According to the present application, the expected returns of keeping the current phase and executing phase switch are calculated by estimating the timely driving distance and the future driving distance of the passable vehicles in the next green light duration in combination with the proposed road priority traffic index. By comparing the expected returns of keeping the current phase or switching to other phases, the best phase is selected, so as to make as many passable vehicles travel farther as possible in the next green light duration. Therefore, the efficiency of traffic will be improved.Type: GrantFiled: July 11, 2023Date of Patent: March 26, 2024Assignee: ZHEJIANG LABInventors: Qian Huang, Kan Wu, Yongdong Zhu, Zhifeng Zhao
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Publication number: 20240071099Abstract: The present application discloses a method and a device for estimating the position of a networked vehicle based on independent non-uniform increment sampling. By mapping a laser radar point cloud to a spatiotemporal aligned image, independent non-uniform increment sampling is carried out on the mapping points falling in an advanced semantic constraint region of the image according to a point density of the depth interval where the mapping points are located, and the virtual mapping points generated by sampling are reversely mapped to the original point cloud space and merged with the original point cloud, and the combined point cloud is used to estimate the position of the networked vehicle based on a deep learning method, so as to solve the inaccurate position estimation problem of sheltered or remote networked vehicles due to the sparseness or missing of its own point cloud clusters.Type: ApplicationFiled: October 24, 2023Publication date: February 29, 2024Inventors: Qian HUANG, Yongdong ZHU, Zhifeng ZHAO
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Publication number: 20240005496Abstract: A method for determining a presence of arthritis in a patient, including obtaining a first image of a patient's joint, wherein the first image is a visible light image, obtaining a second image of the patient's joint, wherein the second image is a thermal light image, determining an outline of the patient's joint from the first image, determining an outline of a reference area from the first image, wherein the patient's joint is adjacent to the reference area, determining a first representative topological temperature within the outline of the patient's joint of the first image from the second image, determining a second representative topological temperature within the outline of the reference area of the first image from the second image, comparing the first representative topological temperature and the second representative topological temperature; and determining a likelihood of the presence of arthritis within the patient's joint.Type: ApplicationFiled: June 28, 2023Publication date: January 4, 2024Applicants: Seattle Children's Hospital dba Seattle Children's Research Institute, University of WashingtonInventors: Yongdong Zhao, Joshua Scheck, Savannah Corrina Partridge, Ramesh S. Iyer, Mahesh Thapa, Debosmita Biswas, Sr., Nivrutti Vasudev Bhide, Kevin Charles Cain, Jason Michael Pyke
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Publication number: 20230007328Abstract: Aspects of the subject disclosure may include, for example, a device including 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 monitoring network traffic to determine a transmission control protocol traffic pattern, determining a target video rate from the transmission control protocol traffic pattern, and modifying an over-the-top video delivery service network according to the target video rate. Other embodiments are disclosed.Type: ApplicationFiled: September 9, 2022Publication date: January 5, 2023Applicant: AT&T Intellectual Property I, L.P.Inventors: Zhengye Liu, Jin Wang, Yali Liu, Yongdong Zhao
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Patent number: 11477505Abstract: Aspects of the subject disclosure may include, for example, a device including 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 monitoring network traffic to determine a transmission control protocol traffic pattern, determining a target video rate from the transmission control protocol traffic pattern, and modifying an over-the-top video delivery service network according to the target video rate. Other embodiments are disclosed.Type: GrantFiled: September 1, 2021Date of Patent: October 18, 2022Assignee: AT&T Intellectual Property I, L.P.Inventors: Zhengye Liu, Jin Wang, Yali Liu, Yongdong Zhao
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Publication number: 20220174360Abstract: Aspects of the subject disclosure may include, for example, a method in which an end user device sends a first request to a digital video recorder (DVR) to receive a media content item, and receives a metadata file including authentication information and a network address of a media content server where the media content item is located. The end user device sends a second request to the media content server to receive the media content item; the second request is sent to the network address and includes the authentication information and an identification of the requested media content item. The end user device receives the media content item from the media content server, responsive to the authentication information and the identification of the media content item sent in the second request. Other embodiments are disclosed.Type: ApplicationFiled: February 17, 2022Publication date: June 2, 2022Applicant: AT&T Intellectual Property I, L.P.Inventors: Yongdong Zhao, Baofeng Jiang
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Patent number: 11349887Abstract: In one example, the present disclosure describes a device, computer-readable medium, and method for estimating the streaming rate at which data is delivered over a network. For instance, in one example, a data packet is intercepted from a data streaming session conducted between a first device and a second device connected over a network. A size of a file segment contained in the data packet is calculated. The file segment corresponds to a portion of an item of multimedia content being delivered via the data streaming session. The encoding rate of the data streaming session is then calculated based at least in part on the size of the file segment.Type: GrantFiled: August 23, 2019Date of Patent: May 31, 2022Assignee: AT&T Intellectual Property I, L.P.Inventors: Yongdong Zhao, Yali Liu, Zhengye Liu, Zuxian Guo
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Patent number: 11290781Abstract: Aspects of the subject disclosure may include, for example, a method in which an end user device sends a first request to a digital video recorder (DVR) to receive a media content item, and receives a metadata file including authentication information and a network address of a media content server where the media content item is located. The end user device sends a second request to the media content server to receive the media content item; the second request is sent to the network address and includes the authentication information and an identification of the requested media content item. The end user device receives the media content item from the media content server, responsive to the authentication information and the identification of the media content item sent in the second request. Other embodiments are disclosed.Type: GrantFiled: July 21, 2020Date of Patent: March 29, 2022Assignee: AT&T Intellectual Property I, L.P.Inventors: Yongdong Zhao, Baofeng Jiang
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Publication number: 20210400327Abstract: Aspects of the subject disclosure may include, for example, a device including 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 monitoring network traffic to determine a transmission control protocol traffic pattern, determining a target video rate from the transmission control protocol traffic pattern, and modifying an over-the-top video delivery service network according to the target video rate. Other embodiments are disclosed.Type: ApplicationFiled: September 1, 2021Publication date: December 23, 2021Applicant: AT&T Intellectual Property I, L.P.Inventors: Zhengye Liu, Jin Wang, Yali Liu, Yongdong Zhao
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Patent number: 11140430Abstract: Aspects of the subject disclosure may include, for example, a device including 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 monitoring network traffic to determine a transmission control protocol traffic pattern, determining a target video rate from the transmission control protocol traffic pattern, and modifying an over-the-top video delivery service network according to the target video rate. Other embodiments are disclosed.Type: GrantFiled: September 29, 2020Date of Patent: October 5, 2021Assignee: AT&T Intellectual Property I, L.P.Inventors: Zhengye Liu, Jin Wang, Yali Liu, Yongdong Zhao
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Patent number: 10972526Abstract: In one example, the encoding rate at which data is delivered over a network is estimated by intercepting a data packet from a data streaming session, wherein the data packet contains at least a portion of one of a plurality of file segments containing portions of a file, and wherein a number of the plurality of file segments that is delivered via the data streaming session is limited to a maximum number. The mean size of the plurality of file segments is estimated from data contained in the data packet. A plurality of potential sizes of the plurality of file segments is calculated, wherein each potential size corresponds to one number between one and the maximum number. An encoding rate of the data streaming session is calculated, based at least in part on which potential size of the plurality of potential sizes is closest to the mean size.Type: GrantFiled: August 12, 2019Date of Patent: April 6, 2021Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Yongdong Zhao, Zhengye Liu, Yali Liu, Zuxian Guo
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Publication number: 20210014551Abstract: Aspects of the subject disclosure may include, for example, a device including 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 monitoring network traffic to determine a transmission control protocol traffic pattern, determining a target video rate from the transmission control protocol traffic pattern, and modifying an over-the-top video delivery service network according to the target video rate. Other embodiments are disclosed.Type: ApplicationFiled: September 29, 2020Publication date: January 14, 2021Applicant: AT&T Intellectual Property I, L.P.Inventors: Zhengye Liu, Jin Wang, Yali Liu, Yongdong Zhao
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Publication number: 20200351556Abstract: Aspects of the subject disclosure may include, for example, a method in which an end user device sends a first request to a digital video recorder (DVR) to receive a media content item, and receives a metadata file including authentication information and a network address of a media content server where the media content item is located. The end user device sends a second request to the media content server to receive the media content item; the second request is sent to the network address and includes the authentication information and an identification of the requested media content item. The end user device receives the media content item from the media content server, responsive to the authentication information and the identification of the media content item sent in the second request. Other embodiments are disclosed.Type: ApplicationFiled: July 21, 2020Publication date: November 5, 2020Applicant: AT&T Intellectual Property I, L.P.Inventors: Yongdong Zhao, Baofeng Jiang
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Patent number: 10827211Abstract: Aspects of the subject disclosure may include, for example, a device including 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 monitoring network traffic to determine a transmission control protocol traffic pattern, determining a target video rate from the transmission control protocol traffic pattern, and modifying an over-the-top video delivery service network according to the target video rate. Other embodiments are disclosed.Type: GrantFiled: October 10, 2016Date of Patent: November 3, 2020Assignee: AT&T Intellectual Property I, L.P.Inventors: Zhengye Liu, Jin Wang, Yali Liu, Yongdong Zhao
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Patent number: 10819763Abstract: Aspects of the subject disclosure may include, for example, a system that provides for obtaining, by a server comprising a processor, network parameter data from an eNodeB of a wireless network. The server can determine a predicted bandwidth for a group of end user devices in a coverage area of the eNodeB according to the network parameter data. The server can receive, from an end user device of the group of end user devices, a request for the predicted bandwidth. The server can provide the predicted bandwidth to the end user device. The providing of the predicted bandwidth enables the end user device to provide a video chunk request to a content server that is based on a selected chunk delivery schedule and facilitates streaming of video content to the end user device from the content server. Other embodiments are disclosed.Type: GrantFiled: March 31, 2017Date of Patent: October 27, 2020Assignee: AT&T Intellectual Property I, L.P.Inventors: Zhengye Liu, Zuxian Guo, Dhruv Gupta, Xiaojun Tang, Jin Wang, Weihua Ye, Yongdong Zhao
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Patent number: 10771850Abstract: Aspects of the subject disclosure may include, for example, a method comprising: sending by an end user device, to a digital video recorder, a first request to receive a requested media content item; receiving by the end user device, responsive to the sending of the first request, a metadata file, wherein the metadata file comprises authentication information and a network address of a media content server where the requested media content item is located; sending to the media content server by the end user device, responsive to the receiving of the metadata file, a second request to receive the requested media content item, wherein the second request is sent to the network address, wherein the second request comprises the authentication information contained in the metadata file, and wherein the second request comprises an identification of the requested media content item; and receiving by the end user device, responsive to the authentication information and the identification of the requested media contentType: GrantFiled: February 17, 2017Date of Patent: September 8, 2020Assignee: AT&T Intellectual Property I, L.P.Inventors: Yongdong Zhao, Baofeng Jiang
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Publication number: 20190379710Abstract: In one example, the present disclosure describes a device, computer-readable medium, and method for estimating the streaming rate at which data is delivered over a network. For instance, in one example, a data packet is intercepted from a data streaming session conducted between a first device and a second device connected over a network. A size of a file segment contained in the data packet is calculated. The file segment corresponds to a portion of an item of multimedia content being delivered via the data streaming session. The encoding rate of the data streaming session is then calculated based at least in part on the size of the file segment.Type: ApplicationFiled: August 23, 2019Publication date: December 12, 2019Inventors: Yongdong Zhao, Yali Liu, Zhengye Liu, Zuxian Guo
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Publication number: 20190364086Abstract: In one example, the encoding rate at which data is delivered over a network is estimated by intercepting a data packet from a data streaming session, wherein the data packet contains at least a portion of one of a plurality of file segments containing portions of a file, and wherein a number of the plurality of file segments that is delivered via the data streaming session is limited to a maximum number. The mean size of the plurality of file segments is estimated from data contained in the data packet. A plurality of potential sizes of the plurality of file segments is calculated, wherein each potential size corresponds to one number between one and the maximum number. An encoding rate of the data streaming session is calculated, based at least in part on which potential size of the plurality of potential sizes is closest to the mean size.Type: ApplicationFiled: August 12, 2019Publication date: November 28, 2019Inventors: Yongdong Zhao, Zhengye Liu, Yali Liu, Zuxian Guo
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Patent number: 10397286Abstract: In one example, the present disclosure describes a device, computer-readable medium, and method for estimating the streaming rate at which data is delivered over a network. For instance, in one example, a data packet is intercepted from a data streaming session conducted between a first device and a second device connected over a network. A size of a file segment contained in the data packet is calculated. The file segment corresponds to a portion of an item of multimedia content being delivered via the data streaming session. The encoding rate of the data streaming session is then calculated based at least in part on the size of the file segment.Type: GrantFiled: May 5, 2017Date of Patent: August 27, 2019Assignee: AT&T Intellectual Property I, L.P.Inventors: Yongdong Zhao, Yali Liu, Zhengye Liu, Zuxian Guo
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Patent number: 10382517Abstract: In one example, the encoding rate at which data is delivered over a network is estimated by intercepting a data packet from a data streaming session, wherein the data packet contains at least a portion of one of a plurality of file segments containing portions of a file, and wherein a number of the plurality of file segments that is delivered via the data streaming session is limited to a maximum number. The mean size of the plurality of file segments is estimated from data contained in the data packet. A plurality of potential sizes of the plurality of file segments is calculated, wherein each potential size corresponds to one number between one and the maximum number. An encoding rate of the data streaming session is calculated, based at least in part on which potential size of the plurality of potential sizes is closest to the mean size.Type: GrantFiled: June 9, 2017Date of Patent: August 13, 2019Assignee: AT&T Intellectual Property I, L.P.Inventors: Yongdong Zhao, Zhengye Liu, Yali Liu, Zuxian Guo