Patents by Inventor Chao Weng

Chao Weng 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).

  • Patent number: 11080235
    Abstract: A system enables tool to process remote log files as if the log files were located locally. The system relies on technology, such a file system in user space (FUSE), to add log file search results to the local file system. In some embodiments, the log file search results are associated with virtual files in the local file system. A remote data store system communicates with the local system to provide the search results in response to a search query.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: August 3, 2021
    Assignee: Dashbase LLC
    Inventors: Alexander Munk, John Wang, Kevin Hou, Min Zeng, Alejandro Crosa, Keita Fujii, Penghan Wang, Chao Weng
  • Patent number: 11070749
    Abstract: An image fusing method includes converting a first image into a first intermediate image, converting a second image into a second intermediate image including a plurality of components, fusing one of the plurality of components of the second intermediate image with the first intermediate image to obtain a fused component, and combining the fused component and other ones of the plurality of components of the second intermediate image to obtain a target image.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: July 20, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Chao Weng, Lei Yan
  • Publication number: 20210208610
    Abstract: A tracking method includes receiving a start-tracking instruction, determining a tracking target through thermal tracking according to the start-tracking instruction, and marking the tracking target at a preset position of a display interface.
    Type: Application
    Filed: September 25, 2020
    Publication date: July 8, 2021
    Inventors: Chao WENG, Hongjing CHEN
  • Patent number: 11037547
    Abstract: A method of attention-based end-to-end (A-E2E) automatic speech recognition (ASR) training, includes performing cross-entropy training of a model, based on one or more input features of a speech signal, determining a posterior probability vector at a time of a first wrong token among one or more output tokens of the model of which the cross-entropy training is performed, and determining a loss of the first wrong token at the time, based on the determined posterior probability vector. The method further includes determining a total loss of a training set of the model of which the cross-entropy training is performed, based on the determined loss of the first wrong token, and updating the model of which the cross-entropy training is performed, based on the determined total loss of the training set.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: June 15, 2021
    Assignee: TENCENT AMERICA LLC
    Inventors: Peidong Wang, Jia Cui, Chao Weng, Dong Yu
  • Publication number: 20210144292
    Abstract: A control device includes a touchscreen and one or more processors. The touchscreen is configured to display an image captured by an imaging device supported by a movable object or a carrier coupled to the movable object, and receive a user input indicative of selection of a position on the touchscreen to display a selected target of the image and selection of a zoom factor for zooming in or out of the selected target. The one or more processors are configured to generate control data based on information about the user input. The control data includes instructions for the imaging device, the carrier, or the movable object to automatically control an attitude of the imaging device for positioning the selected target at or near the selected position on the touchscreen and a zoom level of the imaging device according to the user selected zoom factor.
    Type: Application
    Filed: January 18, 2021
    Publication date: May 13, 2021
    Inventors: Mingxi WANG, Hanping CHEN, Jiadi WANG, Qi ZHOU, Chao WENG
  • Patent number: 11004443
    Abstract: Methods and apparatuses are provided for performing acoustic to word (A2W) speech recognition training performed by at least one processor. The method includes initializing, by the at least one processor, one or more first layers of a neural network with phone based Connectionist Temporal Classification (CTC), initializing, by the at least one processor, one or more second layers of the neural network with grapheme based CTC, acquiring, by the at least one processor, training data and performing, by the at least one processor, A2W speech recognition training based the initialized one or more first layers and one or more second layers of the neural network using the training data.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: May 11, 2021
    Assignee: TENCENT AMERICA LLC
    Inventors: Chengzhu Yu, Chao Weng, Jia Cui, Dong Yu
  • Patent number: 10923117
    Abstract: A method for selecting an optimal language model weight (LMW) used to perform automatic speech recognition, including decoding test audio into a lattice using a language model; analyzing the lattice using a first LMW of a plurality of LMWs to determine a first plurality of best paths; analyzing the lattice using a second LMW of the plurality of LMWs to determine a second plurality of best paths; determining a first best path change rate (BCPR) corresponding to the first LMW based on a number of best path changes between the first plurality of best paths and the second plurality of best paths; and determining the first LMW to be the optimal LMW based on the first BCPR being a lowest BCPR from among a plurality of BCPRs corresponding to the plurality of LMWs.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: February 16, 2021
    Assignee: TENCENT AMERICA LLC
    Inventors: Peidong Wang, Jia Cui, Chao Weng, Dong Yu
  • Patent number: 10897567
    Abstract: A control device includes a display configured to show an image captured by an imaging device supported by a movable object and one or more processors configured to obtain information about a user input indicative of a target shown within the image, and generate data, based on the information about the user input indicative of the target, to effectuate an automatic control of a zoom level of the imaging device and an attitude of the imaging device relative to the target.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: January 19, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Mingxi Wang, Hanping Chen, Jiadi Wang, Qi Zhou, Chao Weng
  • Publication number: 20210014430
    Abstract: An image fusion method includes acquiring a trigger signal for flat-field correction, controlling a first image acquisition device to start a flat-field correction function to perform a flat-field correction process on the first image acquisition device according to the trigger signal for the flat-field correction, and obtaining a fused image in the flat-field correction process according to an infrared image acquired by the first image acquisition device and a visible light image acquired by a second image acquisition device. The first image acquisition device does not output infrared images during the flat-field correction process.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 14, 2021
    Inventor: Chao WENG
  • Publication number: 20210011358
    Abstract: A control method for controlling a gimbal system includes controlling a first gimbal of the gimbal system to rotate by a first angle and controlling a second gimbal of the gimbal system to rotate by a second angle, so that a signal input/output range of a first load supported by the first gimbal and a signal input/output range of a second load supported by the second gimbal at least partially overlap.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 14, 2021
    Inventors: Chao WENG, Xiangyu CHEN, Yucheng LIU
  • Patent number: 10861441
    Abstract: A method of attention-based end-to-end (E2E) automatic speech recognition (ASR) training, includes performing cross-entropy training of a model, based on one or more input features of a speech signal, performing beam searching of the model of which the cross-entropy training is performed, to generate an n-best hypotheses list of output hypotheses, and determining a one-best hypothesis among the generated n-best hypotheses list. The method further includes determining a character-based gradient and a word-based gradient, based on the model of which the cross-entropy training is performed and a loss function in which a distance between a reference sequence and the determined one-best hypothesis is maximized, and performing backpropagation of the determined character-based gradient and the determined word-based gradient to the model, to update the model.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: December 8, 2020
    Assignee: TENCENT AMERICA LLC
    Inventors: Peidong Wang, Jia Cui, Chao Weng, Dong Yu
  • Publication number: 20200349689
    Abstract: An image processing method includes obtaining a first band image and a second band image, performing transparency processing on the first band image to obtain an intermediate image, and superimposing the intermediate image and the second band image to obtain a target image. The present disclosure also provide an image processing device and an unmanned aerial vehicle using the method above.
    Type: Application
    Filed: July 17, 2020
    Publication date: November 5, 2020
    Inventors: Chao WENG, Zhenguo LU, Lei YAN
  • Publication number: 20200349687
    Abstract: An image processing method includes: obtaining a first band image and a second band image; registering the first band image and the second band image; performing an edge detection on the registered second band image to obtain an edge image; and performing a fusion processing on the registered first band image and the edge image to obtain a target image. The present disclosure also provides an image processing device and a UAV using the above method.
    Type: Application
    Filed: July 15, 2020
    Publication date: November 5, 2020
    Inventors: Chao WENG, Lei YAN
  • Publication number: 20200342275
    Abstract: The present disclosure provides a target-image acquisition method. The target-image acquisition method includes acquiring a visible-light image and an infrared (IR) image of a target, captured at a same time point by a photographing device; weighting and fusing the visible-light image and the IR image to obtain a fused image; and obtaining an image of the target according to the fused image. The present disclosure also provides a photographing device and an unmanned aerial vehicle (UAV) using the method above.
    Type: Application
    Filed: July 14, 2020
    Publication date: October 29, 2020
    Inventors: Chao WENG, Lei YAN
  • Publication number: 20200311196
    Abstract: Method and apparatus for automatically predicting lexical sememes using a lexical dictionary, comprising inputting a word, retrieving the word's semantic definition and sememes corresponding to the word from an online dictionary, setting each of the retrieved sememes as a candidate sememe, inputting the word's semantic definition and candidate sememe, and estimating the probability that the candidate sememe can be inferred from the word's semantic definition.
    Type: Application
    Filed: March 26, 2019
    Publication date: October 1, 2020
    Applicant: TENCENT AMERICA LLC
    Inventors: Kun XU, Chao WENG, Chengzhu YU, Dong YU
  • Publication number: 20200296305
    Abstract: An image fusing method includes converting a first image into a first intermediate image, converting a second image into a second intermediate image including a plurality of components, fusing one of the plurality of components of the second intermediate image with the first intermediate image to obtain a fused component, and combining the fused component and other ones of the plurality of components of the second intermediate image to obtain a target image.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Inventors: Chao WENG, Lei YAN
  • Publication number: 20200280682
    Abstract: The present disclosure relates to a method for tracking a maximum temperature point. In the method, a first pair of coordinates of a maximum temperature point in an image sensed by an infrared camera is acquired, where the image is an image captured by the infrared camera. A rotation angle of a gimbal equipped with the infrared camera is then determined according to the first pair of coordinates of the maximum temperature point and a pair of coordinates of a target position in the image. The gimbal is then controlled to rotate according to the determined rotation angle, so as to adjust the maximum temperature point in the image captured by the infrared camera to be located at the target position.
    Type: Application
    Filed: December 27, 2019
    Publication date: September 3, 2020
    Inventors: Chao WENG, Mingxi WANG, Wei ZHANG
  • Publication number: 20200275021
    Abstract: An image presentation method includes obtaining a first image captured by a first image sensor and a second image captured by a second image sensor; size-processing the first image according to at least one of a target resolution, an aspect ratio of the first image, or an aspect ratio of the second image to generate a size-processed first image having the target resolution; and generating a presenting image at least by combining the size-processed first image and the second image. The presenting image has a preset resolution that is not less than a sum of the target resolution and a resolution of the second image.
    Type: Application
    Filed: May 8, 2020
    Publication date: August 27, 2020
    Inventors: Chao WENG, Hongjing CHEN
  • Publication number: 20200265833
    Abstract: A method for selecting an optimal language model weight (LMW) used to perform automatic speech recognition, including decoding test audio into a lattice using a language model; analyzing the lattice using a first LMW of a plurality of LMWs to determine a first plurality of best paths; analyzing the lattice using a second LMW of the plurality of LMWs to determine a second plurality of best paths; determining a first best path change rate (BCPR) corresponding to the first LMW based on a number of best path changes between the first plurality of best paths and the second plurality of best paths; and determining the first LMW to be the optimal LMW based on the first BCPR being a lowest BCPR from among a plurality of BCPRs corresponding to the plurality of LMWs.
    Type: Application
    Filed: February 19, 2019
    Publication date: August 20, 2020
    Applicant: TENCENT AMERICA LLC
    Inventors: Peidong WANG, Jai CUI, Chao WENG, Dong YU
  • Publication number: 20200265830
    Abstract: A method of attention-based end-to-end (A-E2E) automatic speech recognition (ASR) training, includes performing cross-entropy training of a model, based on one or more input features of a speech signal, determining a posterior probability vector at a time of a first wrong token among one or more output tokens of the model of which the cross-entropy training is performed, and determining a loss of the first wrong token at the time, based on the determined posterior probability vector. The method further includes determining a total loss of a training set of the model of which the cross-entropy training is performed, based on the determined loss of the first wrong token, and updating the model of which the cross-entropy training is performed, based on the determined total loss of the training set.
    Type: Application
    Filed: February 14, 2019
    Publication date: August 20, 2020
    Applicant: TENCENT AMERICA LLC
    Inventors: Peidong WANG, Jia Cui, Chao Weng, Dong Yu