Patents by Inventor Lai ZHOU
Lai ZHOU 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: 20230236229Abstract: A method for identifying consumer phase connectivity in low-voltage distribution network based on voltage association characteristics is provided.Type: ApplicationFiled: December 31, 2020Publication date: July 27, 2023Applicants: SOUTH CHINA UNIVERSITY OF TECHNOLOGY, GUANGZHOU POWER ELECTRICAL TECHNOLOGY CO., LTD.Inventors: Lai ZHOU, Yongjun ZHANG, Qinhao LI, Yingqi YI, Siliang LIU, Xiangmin HUANG, Chunyan HUANG, Wei CAO, Haoxia JIANG
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Publication number: 20180367566Abstract: A method including parsing an attack packet when a network attack is detected, wherein the attack packet includes address information; locating a first gateway device according to the address information; and sending a first instruction to the first gateway device, wherein the first instruction is used for instructing the first gateway device to perform security control on a terminal to which the attack packet belongs. The present disclosure solves the technical problem of low defense efficiency when a target server under attack defends passively due to the lack of techniques of monitoring and countering network attacks in conventional techniques.Type: ApplicationFiled: August 28, 2018Publication date: December 20, 2018Inventors: Lele Ma, Yangyang SONG, Lai ZHOU
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Patent number: 9556004Abstract: A handrail drive inverter for an escalator can include a memory configured to store instructions, a processor coupled to the memory, an input configured to receive a main speed control signal that corresponds to the speed of a main drive motor of the escalator, and an output configured to provide a handrail speed control signal for a handrail drive motor based on the instructions in the memory. The processor is configured to calculate a torque output of the handrail drive motor and determine the handrail speed control signal as a function of the torque output and a feedback of the handrail speed control signal constrained by at least one of an upper limit and a lower limit, the upper limit and the lower limit being determined from the main speed control signal.Type: GrantFiled: February 8, 2016Date of Patent: January 31, 2017Assignee: Kone CorporationInventors: Bo Xia Xu, Tai Lai Zhou, Cai Xiao Liang
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Publication number: 20160152447Abstract: A handrail drive inverter for an escalator can include a memory configured to store instructions, a processor coupled to the memory, an input configured to receive a main speed control signal that corresponds to the speed of a main drive motor of the escalator, and an output configured to provide a handrail speed control signal for a handrail drive motor based on the instructions in the memory. The processor is configured to calculate a torque output of the handrail drive motor and determine the handrail speed control signal as a function of the torque output and a feedback of the handrail speed control signal constrained by at least one of an upper limit and a lower limit, the upper limit and the lower limit being determined from the main speed control signal.Type: ApplicationFiled: February 8, 2016Publication date: June 2, 2016Applicant: KONE CORPORATIONInventors: Bo Xia XU, Tai Lai ZHOU, Cai Xiao LIANG
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Publication number: 20150359228Abstract: A pest biocontrol method and device for flying insects configured to be used with solar power is disclosed. The device includes a solar panel, a solar rechargeable battery pack, a solar charge controller, an insect-attracting lamp and/or a semiochemical vial, and a biopesticide-spraying device. This biocontrol device can be used with or without a trap fan to draw in insects, and an exit fan that draws out infected insects to be released. The said device accomplishes AIR (Attract-Infect-Release) method of insect biocontrol.Type: ApplicationFiled: June 12, 2014Publication date: December 17, 2015Inventors: Ying Zhang Grasso, Hong Jiang, Jun-Ping Wang, Yu-Long Cheng, Yan-Lai Zhou
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Patent number: 8234116Abstract: Measurement of Kullback-Leibler Divergence (KLD) between hidden Markov models (HMM) of acoustic units utilizes an unscented transform to approximate KLD between Gaussian mixtures. Dynamic programming equalizes the number of states between HMMs having a different number of states, while the total KLD of the HMMs is obtained by summing individual KLDs calculated by state pair by state pair comparisons.Type: GrantFiled: August 22, 2006Date of Patent: July 31, 2012Assignee: Microsoft CorporationInventors: Peng Liu, Frank Kao-Ping K. Soong, Jian-Lai Zhou
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Patent number: 7929767Abstract: A mechanism for recognizing and inputting handwritten mathematical expressions into a computer by providing part of a multi-path framework is described. The part of the multi-path framework includes a subordinate sub-expression analysis component. A method for analyzing a handwritten mathematical expression for a subordinate sub-expression includes identifying sub-expressions based on dominant symbols and determining a character for potential dominant symbols based upon sub-expression information. A determination may be made whether an expression structure candidate is valid and valid expression structure candidates may be stored in a parse tree.Type: GrantFiled: June 20, 2005Date of Patent: April 19, 2011Assignee: Microsoft CorporationInventors: Mingqing Xu, Yu Zou, Lei Huang, Jian-Lai Zhou, Xiaohui Hou, Zhouchen Lin, Dongmei Zhang, Jian Wang
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Patent number: 7890325Abstract: Speech recognition such as command and control speech recognition generally use a context free grammar to constrain the decoding process. Word or subword background model are constructed to repopulate dynamic hypothesis space, especially when word spareness is at issue. The background models can be later used in speech recognition. During speech recognition, background and conventional context free grammar decoding are used to measure confidence. The discussion above is merely provided for general background information and is not intended to be used as an aid in determining the scope of the claimed subject matter.Type: GrantFiled: March 16, 2006Date of Patent: February 15, 2011Assignee: Microsoft CorporationInventors: Peng Liu, Ye Tian, Jian-Lai Zhou, Frank Kao-Ping K. Soong
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Patent number: 7848917Abstract: Multiple input modalities are selectively used by a user or process to prune a word graph. Pruning initiates rescoring in order to generate a new word graph with a revised best path.Type: GrantFiled: March 30, 2006Date of Patent: December 7, 2010Assignee: Microsoft CorporationInventors: Frank Kao-Ping K. Soong, Jian-Lai Zhou, Peng Liu
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Patent number: 7805301Abstract: A reliable full covariance matrix estimation algorithm for pattern unit's state output distribution in pattern recognition system is discussed. An intermediate hierarchical tree structure is built to relate models for product units. Full covariance matrices of pattern unit's state output distribution are estimated based on all the related nodes in the tree.Type: GrantFiled: July 1, 2005Date of Patent: September 28, 2010Assignee: Microsoft CorporationInventors: Ye Tian, Frank Kao-Ping Soong, Jian-Lai Zhou
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Patent number: 7761287Abstract: An opinion system infers the opinion of a sentence of a product review based on a probability that the sentence contains certain sequences of parts of speech that are commonly used to express an opinion as indicated by the training data and the probabilities of the training data. When provided with the sentence, the opinion system identifies possible sequences of parts of speech of the sentence that are commonly used to express an opinion and the probability that the sequence is the correct sequence for the sentence. For each sequence, the opinion system then retrieves a probability derived from the training data that the sequence contains an opinion word that expresses an opinion. The opinion system then retrieves a probability from the training data that the opinion words of the sentence are used to express an opinion. The opinion system then combines the probabilities to generate an overall probability that the sentence with that sequence expresses an opinion.Type: GrantFiled: October 23, 2006Date of Patent: July 20, 2010Assignee: Microsoft CorporationInventors: Hua Li, Jian-Lai Zhou, Dongmei Zhang, legal representative, Zheng Chen, Jian Wang
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Patent number: 7561737Abstract: A mechanism for recognizing and inputting handwritten mathematical expressions into a computer by providing a multi-path framework is described. The framework may include symbol grouping and recognition, tabular structure analysis, subordinate sub-expression analysis, subscript/superscript analysis and character determination, and semantic structure analysis components. A method for recognizing a handwritten mathematical expression includes receiving a plurality of input strokes corresponding to a handwritten mathematical expression and providing a candidate list of recognized candidate expressions based upon the input strokes. Input strokes are grouped into symbols, tabular structures are determined, dominant symbol candidates and subordinate symbols are determined, and subscript and superscript structures are determined.Type: GrantFiled: June 20, 2005Date of Patent: July 14, 2009Assignee: Microsoft CorporationInventors: Yu Zou, Lei Huang, Mingqing Xu, Jian-Lai Zhou, Yue Li, Dongmei Zhang, Xiaohui Hou, Wenli Zhu, Hongyun Yang, Xianfang Wang, Jiang Wu, Jian Wang
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Patent number: 7561739Abstract: A mechanism for recognizing and inputting handwritten mathematical expressions into a computer by providing part of a multi-path framework is described. The part of the multi-path framework includes a subscript/superscript analysis and character determination component that is designed to identify subscript and superscript elements. A method for analyzing a handwritten mathematical expression includes receiving a symbols corresponding to handwritten mathematical expression input strokes, identifying subscript and/or superscript structures, and determining a character for each symbol of the set. A graph of vertexes and edges may be created based upon the set of symbols and the graph may be searched to determine optimized candidates.Type: GrantFiled: June 20, 2005Date of Patent: July 14, 2009Assignee: Microsoft CorporationInventors: Mingqing Xu, Yu Zou, Lei Huang, Jian-Lai Zhou, Xianfang Wang, Xiaohui Hou, Dongmei Zhang, Zhouchen Lin, Jian Wang
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Patent number: 7561738Abstract: A mechanism for recognizing and inputting handwritten mathematical expressions into a computer by providing a part of a multi-path framework is described. The part of the multi-path framework includes a symbol grouping and recognition component that is designed to group input strokes that correspond to a handwritten mathematical expression into a symbol and to recognize the symbol based upon information associated with the grouped input strokes. A method for grouping and recognizing symbols of a handwritten mathematical expression includes receiving a plurality of input strokes corresponding to a handwritten mathematical expression, grouping the plurality of input strokes into symbols, recognizing the symbols based upon information, such as shape and time series information, associated with the grouped input strokes. Intra-group and inter-group information associated with the plurality of input strokes may be utilized to group the input strokes.Type: GrantFiled: June 20, 2005Date of Patent: July 14, 2009Assignee: Microsoft CorporationInventors: Yu Zou, Lei Huang, Jian-Lai Zhou, Mingqing Xu, Yue Li, Xiaohui Hou, Dongmei Zhang, Jian Wang
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Patent number: 7506271Abstract: Systems, methods, and computer-readable media for processing electronic ink receive an electronic ink input; convert the electronic ink input to a first machine-generated object using handwriting recognition; display the first machine-generated object on a display; receive speech input; convert the speech input to a second machine-generated object using speech recognition; generate a list of machine-generated objects based on the electronic ink input, the list including the first machine-generated object and alternative machine-generated objects and functioning as a dictionary for converting the speech input; and replace the first machine-generated object with the second machine-generated object. A user may confirm that the second machine-generated object should replace the first machine-generated object.Type: GrantFiled: December 15, 2003Date of Patent: March 17, 2009Assignee: Microsoft CorporationInventors: Jian Wang, Jian-Lai Zhou, Jiang Wu, Hongyun Yang, Xianfang Wang, Wenli Zhu
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Patent number: 7496512Abstract: A method and apparatus are provided for refining segmental boundaries in speech waveforms. Contextual acoustic feature similarities are used as a basis for clustering adjacent phoneme speech units, where each adjacent pair phoneme speech units include a segmental boundary. A refining model is trained for each cluster and used to refine boundaries of contextual phoneme speech units forming the clusters.Type: GrantFiled: April 13, 2004Date of Patent: February 24, 2009Assignee: Microsoft CorporationInventors: Yong Zhao, Min Chu, Jian-lai Zhou, Lijuan Wang
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Patent number: 7496513Abstract: Input is received from at least two different input sources. Information from these sources are combined together to provide a result. In a particular example, input from one source corresponds to potential recognition candidates, and input from another source corresponds to other potential candidates. These candidates are combined together to select a result.Type: GrantFiled: June 28, 2005Date of Patent: February 24, 2009Assignee: Microsoft CorporationInventors: Frank Kao-Ping Soong, Jian-Lai Zhou, Ye Tian
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Publication number: 20080240570Abstract: A forward pass through a sequence of strokes representing a handwritten equation is performed from the first stroke to the last stroke in the sequence. At each stroke, a path score is determined for a plurality of symbol-relation pairs that each represents a symbol and its spatial relation to a predecessor symbol. A symbol graph having nodes and links is constructed by backtracking through the strokes from the last stroke to the first stroke and assigning scores to the links based on the path scores for the symbol-relation pairs. The symbol graph is used to recognize a mathematical expression based in part on the scores for the links and the mathematical expression is stored.Type: ApplicationFiled: March 29, 2007Publication date: October 2, 2008Applicant: Microsoft CorporationInventors: Yu Shi, Frank Kao-Ping Soong, Jian-lai Zhou, Dongmei Zhang
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Publication number: 20080097758Abstract: An opinion system infers the opinion of a sentence of a product review based on a probability that the sentence contains certain sequences of parts of speech that are commonly used to express an opinion as indicated by the training data and the probabilities of the training data. When provided with the sentence, the opinion system identifies possible sequences of parts of speech of the sentence that are commonly used to express an opinion and the probability that the sequence is the correct sequence for the sentence. For each sequence, the opinion system then retrieves a probability derived from the training data that the sequence contains an opinion word that expresses an opinion. The opinion system then retrieves a probability from the training data that the opinion words of the sentence are used to express an opinion. The opinion system then combines the probabilities to generate an overall probability that the sentence with that sequence expresses an opinion.Type: ApplicationFiled: October 23, 2006Publication date: April 24, 2008Applicant: Microsoft CorporationInventors: Hua Li, Jian-Lai Zhou, Zheng Chen, Jian Wang, Dongmei Zhang
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Publication number: 20080059184Abstract: Measurement of Kullback-Leibler Divergence (KLD) between hidden Markov models (HMM) of acoustic units utilizes an unscented transform to approximate KLD between Gaussian mixtures. Dynamic programming equalizes the number of states between HMMs having a different number of states, while the total KLD of the HMMs is obtained by summing individual KLDs calculated by state pair by state pair comparisons.Type: ApplicationFiled: August 22, 2006Publication date: March 6, 2008Applicant: Microsoft CorporationInventors: Frank Kao-Ping K. Soong, Jian-Lai Zhou, Peng Liu