Patents by Inventor Chao Gui
Chao Gui 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: 20240137585Abstract: In some embodiments, a method sends a set of first requests for a set of first segments of a video in a playback session. A first protocol from a plurality of protocols is specified in at least one of the set of first requests. The set of first segments is received. The method determines whether to switch from using the first protocol to a second protocol in the playback session based on receiving the set of first segments. When switching to the second protocol, the method sends a second request in the playback session, wherein the second request indicates the second protocol is to be used to send a second segment of the video.Type: ApplicationFiled: January 2, 2024Publication date: April 25, 2024Applicant: HULU, LLCInventors: Tongyu Dai, Lan Xie, Wenhao Zhang, Deliang Fu, Chao Li, Qiang She, Yuting Gui, Yicheng Liu, Yanping Zhou, Xizhi Xu
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Publication number: 20240126298Abstract: This disclosure provides a method and apparatus for controlling a robot, and a non-transitory computer-readable storage medium, and relates to the technical field of robot. The method of controlling a robot therein includes: constructing a closed plane graph according to a size of a chassis of the robot, the closed plane graph passing through a center point of the robot chassis and a target point on a planning path of the robot, a connection line between the center point and the target point being a symmetry axis of the closed plane graph; performing laser irradiation from the center point to an area of the closed plane graph to acquire a laser point set; and controlling a movement state of the robot according to a farthest distance between all the laser points in the laser point set and the center point.Type: ApplicationFiled: January 11, 2022Publication date: April 18, 2024Inventors: Enqiong TANG, Chao WANG, Xiujun YAO, Chenguang GUI
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Publication number: 20240118419Abstract: The present disclosure relates to a localization method and apparatus, and a computer apparatus and a computer-readable storage medium. The localization method includes performing radar mapping and visual mapping by respectively using a radar and a vision sensor, wherein a step of the vision mapping includes determining a pose of a key frame; and combining radar localization with vision localization based on the pose of the key frame, to use vision localization results for navigation on a map obtained by the radar mapping.Type: ApplicationFiled: December 17, 2021Publication date: April 11, 2024Inventors: Xiujun YAO, Chenguang GUI, Jiannan CHEN, Fuqiang MA, Chao WANG, Lihua CUI, Feng WANG
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Publication number: 20240083030Abstract: Disclosed are a method and an apparatus for path optimization, a robot and a storage medium. The method includes: acquiring an initial path of a robot, and iteratively optimizing the initial path until a preset iteration termination condition is met to obtain obstacle avoidance path of the robot: acquiring an iteration path corresponding to a current iteration process, determining a smoothness cost and a smoothness optimal gradient; determining a robot's footprint contour corresponding to the iteration path point, and searching for a first nearest obstacle distance; determining an obstacle cost corresponding to the iteration path and an obstacle optimal gradient corresponding to the iteration path point based on the first nearest obstacle distance; adjusting the iteration path point to acquire an iteration path corresponding to a next iteration process; inputting the smoothness cost and the obstacle cost to a preset objective function.Type: ApplicationFiled: December 14, 2021Publication date: March 14, 2024Applicant: JINGDONG TECHNOLOGY INFORMATION TECHNOLOGY CO., LTD.Inventors: Yongyu CHEN, Chao WANG, Xiujun YAO, Chenguang GUI, Lihua CUI
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Publication number: 20210015980Abstract: A dual-chamber suction filtering device and filtering method, belonging to a surgical waste liquid collecting device, and solving the problem in the prior art that drainage fluid of an endoscope shaver system and a plasma surgical system is easily contaminated and cannot be separated in sections.Type: ApplicationFiled: March 1, 2019Publication date: January 21, 2021Applicant: BEIJING LONGFU HOSPITALInventors: Yonglei LI, Jie DING, Tongqing CUI, Wei LI, Chao GUI, Zhe LIU, Ting LV, Fangxiang LI, Qiang XIE, Hongchen WANG
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Patent number: 9930575Abstract: A scalable medium access control (“MAC”) module is provided that avoids conflict resource reservation so that network performance does not degrade as the number of hops or nodes in a wireless network increases. The MAC also provides different access schemes for traffic with different quality of service (“QoS”) requirements such that QoS is guaranteed and network resources are efficiently utilized. Furthermore, the resource allocation scheme determines the routing path as resources is allocated for data traffic, thereby achieving more robust layer-2 routing at the MAC layer. Finally, the scalable MAC is compliant with both WiMedia MAC and IEEE 802.15.3 MAC.Type: GrantFiled: January 19, 2017Date of Patent: March 27, 2018Assignee: OL SECURITY LIMITED LIABILITY COMPANYInventors: Xudong Wang, Chao Gui, Abhishek Patil, Weilin Wang, Michael Nova
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Publication number: 20170353890Abstract: A scalable medium access control (“MAC”) module is provided that avoids conflict resource reservation so that network performance does not degrade as the number of hops or nodes in a wireless network increases. The MAC also provides different access schemes for traffic with different quality of service (“QoS”) requirements such that QoS is guaranteed and network resources are efficiently utilized. Furthermore, the resource allocation scheme determines the routing path as resources is allocated for data traffice, thereby achieving more robust layer-2 routing at the MAC layer. Finally, the scalable MAC is compliant with both WiMedia MAC and IEEE 802.15.3 MAC.Type: ApplicationFiled: January 19, 2017Publication date: December 7, 2017Inventors: Xudong Wang, Chao Gui, Abhishek Patil, Weilin Wang, Michael Nova
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Patent number: 9554304Abstract: A scalable medium access control (“MAC”) module is provided that avoids conflict resource reservation so that network performance does not degrade as the number of hops or nodes in a wireless network increases. The MAC also provides different access schemes for traffic with different quality of service (“QoS”) requirements such that QoS is guaranteed and network resources are efficiently utilized. Furthermore, the resource allocation scheme determines the routing path as resources is allocated for data traffic, thereby achieving more robust layer-2 routing at the MAC layer. Finally, the scalable MAC is compliant with both WiMedia MAC and IEEE 802.15.3 MAC.Type: GrantFiled: November 26, 2013Date of Patent: January 24, 2017Assignee: OL SECURITY LIMITED LIABILITY COMPANYInventors: Xudong Wang, Chao Gui, Abhishek Patil, Weilin Wang, Michael Nova
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Publication number: 20140092766Abstract: A scalable medium access control (“MAC”) module is provided that avoids conflict resource reservation so that network performance does not degrade as the number of hops or nodes in a wireless network increases. The MAC also provides different access schemes for traffic with different quality of service (“QoS”) requirements such that QoS is guaranteed and network resources are efficiently utilized. Furthermore, the resource allocation scheme determines the routing path as resources is allocated for data traffice, thereby achieving more robust layer-2 routing at the MAC layer. Finally, the scalable MAC is compliant with both WiMedia MAC and IEEE 802.15.3 MAC.Type: ApplicationFiled: November 26, 2013Publication date: April 3, 2014Applicant: Misomimo Chi Acquisitions L.L.C.Inventors: Xudong Wang, Chao Gui, Abhishek Patil, Weilin Wang, Michael Nova
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Patent number: 8611320Abstract: A scalable medium access control (“MAC”) module is provided that avoids conflict resource reservation so that network performance does not degrade as the number of hops or nodes in a wireless network increases. The MAC also provides different access schemes for traffic with different quality of service (“QoS”) requirements such that QoS is guaranteed and network resources are efficiently utilized. Furthermore, the resource allocation scheme determines the routing path as resources is allocated for data traffic, thereby achieving more robust layer-2 routing at the MAC layer. Finally, the scalable MAC is compliant with both WiMedia MAC and IEEE 802.15.3 MAC.Type: GrantFiled: November 19, 2010Date of Patent: December 17, 2013Assignee: Misonimo Chi Acquisitions L.L.C.Inventors: Xudong Wang, Chao Gui, Abhishek Patil, Weilin Wang, Michael Nova
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Patent number: 8175613Abstract: Systems and methods for determining a location of a device with a wireless network. Characteristics of signals received from the device at a plurality of nodes are measured. Based upon the measurements, estimates of the range from the device to the nodes are made. Then, based upon the estimated ranges, and knowing the location of the nodes, a location of the device is determined.Type: GrantFiled: April 27, 2007Date of Patent: May 8, 2012Assignee: Misonimo Chi Acquisitions L.L.C.Inventors: Abhishek Patil, Xudong Wang, Chao Gui, Weilin Wang, Michael Nova
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Patent number: 8040857Abstract: A distributed multi-channel TDMA MAC time slot and channel allocation algorithm for wireless networks is provided. The time slot and channel allocation includes a distributed allocation phase and an allocation adjustment phase. Each phase begins allocation at a first node and continues node-by-node until the last node in the network. The allocation then reflects back from the last node to the first node. At each node in the path, the node can initiate resource allocation between itself and its neighbor nodes. Nodes that are within range of the wireless network but are not on the path do not initiate resource allocation but instead participate in the resource allocation initiated from other nodes.Type: GrantFiled: December 7, 2007Date of Patent: October 18, 2011Assignee: Misonimo Chi Acquisitions L.L.C.Inventors: Xudong Wang, Yun Wu, Chao Gui, Xiaojing Tao, Weilin Wang, Michael Nova
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Patent number: 7957356Abstract: A scalable medium access control (“MAC”) module is provided that avoids conflict resource reservation so that network performance does not degrade as the number of hops or nodes in a wireless network increases. The MAC also provides different access schemes for traffic with different quality of service (“QoS”) requirements such that QoS is guaranteed and network resources are efficiently utilized. Furthermore, the resource allocation scheme determines the routing path as resources is allocated for data traffic, thereby achieving more robust layer-2 routing at the MAC layer. Finally, the scalable MAC is compliant with both WiMedia MAC and IEEE 802.15.3 MAC.Type: GrantFiled: August 4, 2006Date of Patent: June 7, 2011Assignee: Misomino Chi Acquisitions L.L.C.Inventors: Xudong Wang, Chao Gui, Abhishek Patil, Weilan Wang, Michael Nova
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Patent number: 7941149Abstract: A wireless communication system is provided that has at least three nodes arranged in a multi-hop ultra wide band (UWB) communication network such that communications from a first node destined for a third node pass through a second node. Each of the devices in the system includes a radio and a media access control (“MAC”) module that is configured to establish multi-hop UWB wireless communications between the three or more wireless communication devices that enables high bandwidth applications such as Voice Over Internet Protocol (“VoIP”); multiplayer gaming; Wireless High Definition Television; and Internet Protocol Television (“IPTV”) among others. The MAC module is configured to avoid bandwidth reservation conflicts so that network performance does not degrade as the number of hops or the number of nodes in the wireless communication system increases.Type: GrantFiled: December 22, 2006Date of Patent: May 10, 2011Assignee: Misonimo Chi Acquistion L.L.C.Inventors: Xudong Wang, Chao Gui, Weilin Wang, Michael Nova
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Publication number: 20110064072Abstract: A scalable medium access control (“MAC”) module is provided that avoids conflict resource reservation so that network performance does not degrade as the number of hops or nodes in a wireless network increases. The MAC also provides different access schemes for traffic with different quality of service (“QoS”) requirements such that QoS is guaranteed and network resources are efficiently utilized. Furthermore, the resource allocation scheme determines the routing path as resources is allocated for data traffice, thereby achieving more robust layer-2 routing at the MAC layer. Finally, the scalable MAC is compliant with both WiMedia MAC and IEEE 802.15.3 MAC.Type: ApplicationFiled: November 19, 2010Publication date: March 17, 2011Inventors: Xudong Wang, Chao Gui, Abhishek Patil, Weilin Wang, Michael Nova
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Patent number: 7852796Abstract: Systems and methods are provided that facilitate distributed multichannel wireless communication and provide the highest level quality of service (“QoS”) guarantee and support extremely high bandwidth applications such as voice over internet protocol (“VOIP”) streaming audio and video content (including high definition), and multicast applications and also supports convergent networks, ad hoc networks, and the like. A modular MAC architecture provides a group of nodes with the ability to simultaneously communicate with each other using multiple separate communication channels during the same timeslots. The additional throughput gained by employing multiple communication channels is amplified by dynamically mapping the communication channels and timeslots in a network so that multiple channels can be reused simultaneously throughout the network during the same timeslot in a fashion that does not create collisions.Type: GrantFiled: May 26, 2006Date of Patent: December 14, 2010Inventors: Xudong Wang, Victor Rollinger, Abhishek Patil, Chao Gui, Weilin Wang, Michael Nova
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Publication number: 20080137620Abstract: A distributed multi-channel TDMA MAC time slot and channel allocation algorithm for wireless networks is provided. The time slot and channel allocation includes a distributed allocation phase and an allocation adjustment phase. Each phase begins allocation at a first node and continues node-by-node until the last node in the network. The allocation then reflects back from the last node to the first node. At each node in the path, the node can initiate resource allocation between itself and its neighbor nodes. Nodes that are within range of the wireless network but are not on the path do not initiate resource allocation but instead participate in the resource allocation initiated from other nodes.Type: ApplicationFiled: December 7, 2007Publication date: June 12, 2008Applicant: KIYON, INC.Inventors: Xudong Wang, Yun Wu, Chao Gui, Xiaojing Tao, Weilin Wang, Michael Nova
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Publication number: 20080032705Abstract: Systems and methods for determining a location of a device with a wireless network. Characteristics of signals received from the device at a plurality of nodes are measured. Based upon the measurements, estimates of the range from the device to the nodes are made. Then, based upon the estimated ranges, and knowing the location of the nodes, a location of the device is determined.Type: ApplicationFiled: April 27, 2007Publication date: February 7, 2008Inventors: Abhishek Patel, Xudong Wang, Chao Gui, Weilin Wang, Michael Nova
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Publication number: 20070104215Abstract: A wireless communication system is provided that has at least three nodes arranged in a multi-hop ultra wide band (UWB) communication network such that communications from a first node destined for a third node pass through a second node. Each of the devices in the system includes a radio and a media access control (“MAC”) module that is configured to establish multi-hop UWB wireless communications between the three or more wireless communication devices that enables high bandwidth applications such as Voice Over Internet Protocol (“VoIP”); multiplayer gaming; Wireless High Definition Television; and Internet Protocol Television (“IPTV”) among others. The MAC module is configured to avoid bandwidth reservation conflicts so that network performance does not degrade as the number of hops or the number of nodes in the wireless communication system increases.Type: ApplicationFiled: December 22, 2006Publication date: May 10, 2007Applicant: KIYON, INC.Inventors: Xudong Wang, Chao Gui, Weilin Wang, Michael Nova
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Publication number: 20060268908Abstract: A scalable medium access control (“MAC”) module is provided that avoids conflict resource reservation so that network performance does not degrade as the number of hops or nodes in a wireless network increases. The MAC also provides different access schemes for traffic with different quality of service (“QoS”) requirements such that QoS is guaranteed and network resources are efficiently utilized. Furthermore, the resource allocation scheme determines the routing path as resources is allocated for data traffice, thereby achieving more robust layer-2 routing at the MAC layer. Finally, the scalable MAC is compliant with both WiMedia MAC and IEEE 802.15.3 MAC.Type: ApplicationFiled: August 4, 2006Publication date: November 30, 2006Applicant: KIYON, INC.Inventors: Xudong Wang, Chao Gui, Abhishek Patil, Weilin Wang, Michael Nova