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).

  • Publication number: 20230236229
    Abstract: A method for identifying consumer phase connectivity in low-voltage distribution network based on voltage association characteristics is provided.
    Type: Application
    Filed: December 31, 2020
    Publication date: July 27, 2023
    Applicants: 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
  • Publication number: 20180367566
    Abstract: 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: Application
    Filed: August 28, 2018
    Publication date: December 20, 2018
    Inventors: Lele Ma, Yangyang SONG, Lai ZHOU
  • Patent number: 9556004
    Abstract: 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: Grant
    Filed: February 8, 2016
    Date of Patent: January 31, 2017
    Assignee: Kone Corporation
    Inventors: Bo Xia Xu, Tai Lai Zhou, Cai Xiao Liang
  • Publication number: 20160152447
    Abstract: 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: Application
    Filed: February 8, 2016
    Publication date: June 2, 2016
    Applicant: KONE CORPORATION
    Inventors: Bo Xia XU, Tai Lai ZHOU, Cai Xiao LIANG
  • Publication number: 20150359228
    Abstract: 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: Application
    Filed: June 12, 2014
    Publication date: December 17, 2015
    Inventors: Ying Zhang Grasso, Hong Jiang, Jun-Ping Wang, Yu-Long Cheng, Yan-Lai Zhou
  • Patent number: 8234116
    Abstract: 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: Grant
    Filed: August 22, 2006
    Date of Patent: July 31, 2012
    Assignee: Microsoft Corporation
    Inventors: Peng Liu, Frank Kao-Ping K. Soong, Jian-Lai Zhou
  • Patent number: 7929767
    Abstract: 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: Grant
    Filed: June 20, 2005
    Date of Patent: April 19, 2011
    Assignee: Microsoft Corporation
    Inventors: Mingqing Xu, Yu Zou, Lei Huang, Jian-Lai Zhou, Xiaohui Hou, Zhouchen Lin, Dongmei Zhang, Jian Wang
  • Patent number: 7890325
    Abstract: 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: Grant
    Filed: March 16, 2006
    Date of Patent: February 15, 2011
    Assignee: Microsoft Corporation
    Inventors: Peng Liu, Ye Tian, Jian-Lai Zhou, Frank Kao-Ping K. Soong
  • Patent number: 7848917
    Abstract: 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: Grant
    Filed: March 30, 2006
    Date of Patent: December 7, 2010
    Assignee: Microsoft Corporation
    Inventors: Frank Kao-Ping K. Soong, Jian-Lai Zhou, Peng Liu
  • Patent number: 7805301
    Abstract: 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: Grant
    Filed: July 1, 2005
    Date of Patent: September 28, 2010
    Assignee: Microsoft Corporation
    Inventors: Ye Tian, Frank Kao-Ping Soong, Jian-Lai Zhou
  • Patent number: 7761287
    Abstract: 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: Grant
    Filed: October 23, 2006
    Date of Patent: July 20, 2010
    Assignee: Microsoft Corporation
    Inventors: Hua Li, Jian-Lai Zhou, Dongmei Zhang, legal representative, Zheng Chen, Jian Wang
  • Patent number: 7561737
    Abstract: 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: Grant
    Filed: June 20, 2005
    Date of Patent: July 14, 2009
    Assignee: Microsoft Corporation
    Inventors: 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
  • Patent number: 7561738
    Abstract: 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: Grant
    Filed: June 20, 2005
    Date of Patent: July 14, 2009
    Assignee: Microsoft Corporation
    Inventors: Yu Zou, Lei Huang, Jian-Lai Zhou, Mingqing Xu, Yue Li, Xiaohui Hou, Dongmei Zhang, Jian Wang
  • Patent number: 7561739
    Abstract: 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: Grant
    Filed: June 20, 2005
    Date of Patent: July 14, 2009
    Assignee: Microsoft Corporation
    Inventors: Mingqing Xu, Yu Zou, Lei Huang, Jian-Lai Zhou, Xianfang Wang, Xiaohui Hou, Dongmei Zhang, Zhouchen Lin, Jian Wang
  • Patent number: 7506271
    Abstract: 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: Grant
    Filed: December 15, 2003
    Date of Patent: March 17, 2009
    Assignee: Microsoft Corporation
    Inventors: Jian Wang, Jian-Lai Zhou, Jiang Wu, Hongyun Yang, Xianfang Wang, Wenli Zhu
  • Patent number: 7496512
    Abstract: 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: Grant
    Filed: April 13, 2004
    Date of Patent: February 24, 2009
    Assignee: Microsoft Corporation
    Inventors: Yong Zhao, Min Chu, Jian-lai Zhou, Lijuan Wang
  • Patent number: 7496513
    Abstract: 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: Grant
    Filed: June 28, 2005
    Date of Patent: February 24, 2009
    Assignee: Microsoft Corporation
    Inventors: Frank Kao-Ping Soong, Jian-Lai Zhou, Ye Tian
  • Publication number: 20080240570
    Abstract: 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: Application
    Filed: March 29, 2007
    Publication date: October 2, 2008
    Applicant: Microsoft Corporation
    Inventors: Yu Shi, Frank Kao-Ping Soong, Jian-lai Zhou, Dongmei Zhang
  • Publication number: 20080097758
    Abstract: 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: Application
    Filed: October 23, 2006
    Publication date: April 24, 2008
    Applicant: Microsoft Corporation
    Inventors: Hua Li, Jian-Lai Zhou, Zheng Chen, Jian Wang, Dongmei Zhang
  • Publication number: 20080059184
    Abstract: 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: Application
    Filed: August 22, 2006
    Publication date: March 6, 2008
    Applicant: Microsoft Corporation
    Inventors: Frank Kao-Ping K. Soong, Jian-Lai Zhou, Peng Liu