Patents by Inventor Lun ZHANG
Lun ZHANG 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: 20180191456Abstract: This application discloses a bandwidth allocation method, an optical line terminal (OLT), an optical network unit (ONU), and a system, where the method includes receiving a bandwidth request from each ONU, where the ONU includes an ONU1, generating a bandwidth map (BWMap) message according to bandwidth requested by the ONU and bandwidth configured by the ONU, where the BWMap message includes a first allocation identifier (Alloc-ID1), a first time corresponding to the Alloc-ID1, a second allocation identifier (Alloc-1D2), and a second time corresponding to the Alloc-ID2, and both the Alloc-ID1 and the Alloc-ID2 are allocated to the ONU1 for use, and sending the BWMap message to each ONU. Therefore, a problem that a transmission delay does not satisfy a requirement when a passive optical network (PON) system is applied to mobile backhaul is resolved, a data transmission rate and data transmission efficiency are improved, and user satisfaction is improved.Type: ApplicationFiled: January 4, 2018Publication date: July 5, 2018Inventors: Lun Zhang, Xifeng Wan, Gang Zheng
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Publication number: 20180005390Abstract: Embodiments of the present application relate to a method, apparatus, and system for detecting a specified image identifier. The method includes retrieving a target image to be detected from a predetermined area, binarizing the target image to be detected to obtain a target binary image to be detected, calibrating connected domains of the target binary image to be detected, successively retrieving image features of candidate connected domains, and comparing the image features corresponding to the candidate connected domains to image features of a standard specified identifier image, wherein the candidate connected domains are determined based at least in part on the calibration of the connected domains, and determining a candidate connected domain as the location of the specified identifier image based at least in part on the comparison of the image features corresponding to the candidate connected domains to image features of the standard specified identifier image.Type: ApplicationFiled: September 14, 2017Publication date: January 4, 2018Inventors: Gang Cheng, Rufeng Chu, Lun Zhang
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Patent number: 9811749Abstract: Determining a label from an image is disclosed, including: obtaining an image; determining a first portion of the image associated with a special mark; determining a second portion of the image associated with a label based at least in part on the first portion of the image associated with the special mark; and applying character recognition to the second portion of the image associated with the label to determine a value associated with the label.Type: GrantFiled: January 21, 2015Date of Patent: November 7, 2017Assignee: Alibaba Group Holding LimitedInventors: Lun Zhang, Rufeng Chu, Chunhui Zhang
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Patent number: 9799119Abstract: Embodiments of the present application relate to a method, apparatus, and system for detecting a specified image identifier. The method includes retrieving a target image to be detected from a predetermined area, binarizing the target image to be detected to obtain a target binary image to be detected, calibrating connected domains of the target binary image to be detected, successively retrieving image features of candidate connected domains, and comparing the image features corresponding to the candidate connected domains to image features of a standard specified identifier image, wherein the candidate connected domains are determined based at least in part on the calibration of the connected domains, and determining a candidate connected domain as the location of the specified identifier image based at least in part on the comparison of the image features corresponding to the candidate connected domains to image features of the standard specified identifier image.Type: GrantFiled: July 28, 2015Date of Patent: October 24, 2017Assignee: Alibaba Group Holding LimitedInventors: Gang Cheng, Rufeng Chu, Lun Zhang
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Publication number: 20170277989Abstract: An identification code-based three-dimensional interactive technique includes acquiring an image including an identification-coded real object, the image being taken by video-capable equipment, identifying an identification code from the identification-coded real object, obtaining object information corresponding to the identification code, acquiring a reference image associated with the identification code and feature points of the reference image, obtaining a position, an orientation, or a combination thereof on the video-capable equipment relative to the identification-coded real object based on the reference image and the feature points of the reference image, and conducting a three-dimensional interaction based on the position, the orientation, or a combination thereof of the video-capable equipment relative to the identification-coded real object and the object information corresponding to the identification code.Type: ApplicationFiled: June 9, 2017Publication date: September 28, 2017Inventors: Shiqi Zhou, Rufeng Chu, Lun Zhang
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Publication number: 20170277619Abstract: The present disclosure provides a system and a method for debugging a robot based on artificial intelligence. The system includes: a mobile terminal; and the robot, in which the mobile terminal and the robot communicate with each other wirelessly, and the mobile terminal is configured to set a state parameter of each function node of the robot, and to send a control command to the robot according to the state parameter of each function node, so as to control the robot to perform a test.Type: ApplicationFiled: February 8, 2017Publication date: September 28, 2017Inventors: Yao LIU, Lun ZHANG, Qian XU, Zhihao WANG, Fuxiang LI, Jing BAI, Zheng LI
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Patent number: 9704247Abstract: An identification code-based three-dimensional interactive technique includes acquiring an image including an identification-coded real object, the image being taken by video-capable equipment, identifying an identification code from the identification-coded real object, obtaining object information corresponding to the identification code, acquiring a reference image associated with the identification code and feature points of the reference image, obtaining a position, an orientation, or a combination thereof on the video-capable equipment relative to the identification-coded real object based on the reference image and the feature points of the reference image, and conducting a three-dimensional interaction based on the position, the orientation, or a combination thereof of the video-capable equipment relative to the identification-coded real object and the object information corresponding to the identification code.Type: GrantFiled: July 14, 2016Date of Patent: July 11, 2017Assignee: Alibaba Group Holding LimitedInventors: Shiqi Zhou, Rufeng Chu, Lun Zhang
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Publication number: 20160335347Abstract: Embodiments of the present invention provide an audio information retrieval method and device. The method includes acquiring a spectrogram of an audio clip, extracting a local feature of at least one energy extreme point in the spectrogram to use as a local feature sequence of the audio clip, and conducting an audio information retrieval according to the local feature sequence of the audio clip to acquire audio information. Embodiments of the present invention reduce the probability of a missed match (e.g., false negative) and improve the accuracy of audio information retrieval.Type: ApplicationFiled: May 11, 2016Publication date: November 17, 2016Inventors: Dong YI, Yeming XIAO, Rong LIU, Lun ZHANG, Rufeng CHU
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Publication number: 20160321814Abstract: An identification code-based three-dimensional interactive technique includes acquiring an image including an identification-coded real object, the image being taken by video-capable equipment, identifying an identification code from the identification-coded real object, obtaining object information corresponding to the identification code, acquiring a reference image associated with the identification code and feature points of the reference image, obtaining a position, an orientation, or a combination thereof on the video-capable equipment relative to the identification-coded real object based on the reference image and the feature points of the reference image, and conducting a three-dimensional interaction based on the position, the orientation, or a combination thereof of the video-capable equipment relative to the identification-coded real object and the object information corresponding to the identification code.Type: ApplicationFiled: July 14, 2016Publication date: November 3, 2016Inventors: Shiqi Zhou, Rufeng Chu, Lun Zhang
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Patent number: 9430835Abstract: An identification code-based three-dimensional interactive technique includes acquiring an image including an identification-coded real object, the image being taken by video-capable equipment, identifying an identification code from the identification-coded real object, obtaining object information corresponding to the identification code, acquiring a reference image associated with the identification code and feature points of the reference image, obtaining a position, an orientation, or a combination thereof on the video-capable equipment relative to the identification-coded real object based on the reference image and the feature points of the reference image, and conducting a three-dimensional interaction based on the position, the orientation, or a combination thereof of the video-capable equipment relative to the identification-coded real object and the object information corresponding to the identification code.Type: GrantFiled: October 16, 2015Date of Patent: August 30, 2016Assignee: Alibaba Group Holding LimitedInventors: Shiqi Zhou, Rufeng Chu, Lun Zhang
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Publication number: 20160173479Abstract: A terminal authentication method in a passive optical network (PON) which includes, receiving, by the optical line terminal (OLT), a registration request that carries an authentication parameter and is sent by the optical network terminal (ONT), where the authentication parameter is used to identify the ONT of a same type, and determining, by the OLT, that the authentication parameter sent by the ONT matches the authentication parameter preconfigured on the OLT, and authorizing that the ONT is an authorized terminal. Using the foregoing technical solutions, an OLT may be, during optical network unit (ONU) registration and authentication, plug-and-play, without needing to manually input authentication information, which improves automation and flexibility of authentication.Type: ApplicationFiled: February 19, 2016Publication date: June 16, 2016Inventors: Lun Zhang, Xifeng Wan
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Publication number: 20160034783Abstract: Embodiments of the present application relate to a method, apparatus, and system for detecting a specified image identifier. The method includes retrieving a target image to be detected from a predetermined area, binarizing the target image to be detected to obtain a target binary image to be detected, calibrating connected domains of the target binary image to be detected, successively retrieving image features of candidate connected domains, and comparing the image features corresponding to the candidate connected domains to image features of a standard specified identifier image, wherein the candidate connected domains are determined based at least in part on the calibration of the connected domains, and determining a candidate connected domain as the location of the specified identifier image based at least in part on the comparison of the image features corresponding to the candidate connected domains to image features of the standard specified identifier image.Type: ApplicationFiled: July 28, 2015Publication date: February 4, 2016Inventors: Gang Cheng, Rufeng Chu, Lun Zhang
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Publication number: 20160035097Abstract: An identification code-based three-dimensional interactive technique includes acquiring an image including an identification-coded real object, the image being taken by video-capable equipment, identifying an identification code from the identification-coded real object, obtaining object information corresponding to the identification code, acquiring a reference image associated with the identification code and feature points of the reference image, obtaining a position, an orientation, or a combination thereof on the video-capable equipment relative to the identification-coded real object based on the reference image and the feature points of the reference image, and conducting a three-dimensional interaction based on the position, the orientation, or a combination thereof of the video-capable equipment relative to the identification-coded real object and the object information corresponding to the identification code.Type: ApplicationFiled: October 16, 2015Publication date: February 4, 2016Inventors: Shiqi Zhou, Rufeng Chu, Lun Zhang
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Patent number: 9195871Abstract: An identification code-based three-dimensional interactive technique includes acquiring an image including an identification-coded real object, the image being taken by video-capable equipment, identifying an identification code from the identification-coded real object, obtaining object information corresponding to the identification code, acquiring a reference image associated with the identification code and feature points of the reference image, obtaining a position, an orientation, or a combination thereof on the video-capable equipment relative to the identification-coded real object based on the reference image and the feature points of the reference image, and conducting a three-dimensional interaction based on the position, the orientation, or a combination thereof of the video-capable equipment relative to the identification-coded real object and the object information corresponding to the identification code.Type: GrantFiled: February 4, 2014Date of Patent: November 24, 2015Assignee: Alibaba Group Holding LimitedInventors: Shiqi Zhou, Rufeng Chu, Lun Zhang
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Publication number: 20150199581Abstract: Determining a label from an image is disclosed, including: obtaining an image; determining a first portion of the image associated with a special mark; determining a second portion of the image associated with a label based at least in part on the first portion of the image associated with the special mark; and applying character recognition to the second portion of the image associated with the label to determine a value associated with the label.Type: ApplicationFiled: January 21, 2015Publication date: July 16, 2015Inventors: Lun Zhang, Rufeng Chu, Chunhui Zhang
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Patent number: 8971620Abstract: Determining a label from an image is disclosed, including: obtaining an image; determining a first portion of the image associated with a special mark; determining a second portion of the image associated with a label based at least in part on the first portion of the image associated with the special mark; and applying character recognition to the second portion of the image associated with the label to determine a value associated with the label.Type: GrantFiled: September 9, 2013Date of Patent: March 3, 2015Assignee: Alibaba Group Holding LimitedInventors: Lun Zhang, Rufeng Chu, Chunhui Zhang
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Publication number: 20140217178Abstract: An identification code-based three-dimensional interactive technique includes acquiring an image including an identification-coded real object, the image being taken by video-capable equipment, identifying an identification code from the identification-coded real object, obtaining object information corresponding to the identification code, acquiring a reference image associated with the identification code and feature points of the reference image, obtaining a position, an orientation, or a combination thereof on the video-capable equipment relative to the identification-coded real object based on the reference image and the feature points of the reference image, and conducting a three-dimensional interaction based on the position, the orientation, or a combination thereof of the video-capable equipment relative to the identification-coded real object and the object information corresponding to the identification code.Type: ApplicationFiled: February 4, 2014Publication date: August 7, 2014Inventors: Shiqi Zhou, Rufeng Chu, Lun Zhang
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Publication number: 20140086483Abstract: Determining a label from an image is disclosed, including: obtaining an image; determining a first portion of the image associated with a special mark; determining a second portion of the image associated with a label based at least in part on the first portion of the image associated with the special mark; and applying character recognition to the second portion of the image associated with the label to determine a value associated with the label.Type: ApplicationFiled: September 9, 2013Publication date: March 27, 2014Inventors: Lun Zhang, Rufeng Chu, Chunhui Zhang
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Patent number: 8577152Abstract: A method and apparatus that classify an image. The method extracts a feature vector from the image, wherein the feature vector includes a plurality of first features. The extracting of each of the first features includes: acquiring a difference between sums or mean values of pixels of the plurality of first areas in the corresponding combination to obtain a first difference vector in the direction of the first axis, and obtaining a second difference vector in the direction of the second axis. A first projection difference vector is acquired with a second projection difference vector. A sum of magnitudes of the first projection difference vector and the second projection difference vector as the first feature is obtained; and the image according to the extracted feature vector is classified.Type: GrantFiled: March 4, 2011Date of Patent: November 5, 2013Assignee: Sony CorporationInventors: Lun Zhang, Weiguo Wu
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Patent number: D709818Type: GrantFiled: October 31, 2013Date of Patent: July 29, 2014Inventor: Pu-Lun Zhang