Patents by Inventor Chen Gao
Chen Gao 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: 20230000111Abstract: This invention discloses method for feeding Hermetia illucens and used as for preparing composite material of puparium, which comprises the following steps: S1, dry Hermetia illucens pupariums and grind them into powdery, S2, adding powdery of Hermetia illucens pupariums into sodium hydroxide aqueous solution, stirring, separating and filtering, S3, adding the pupariums into hydrochloric acid solution, stirring, separating and filtering; S4, placing the pupariums into sodium hydroxide aqueous solution, stirring, separating and filtering; S5, drying the pupariums, and screening out the granular pretreated powder of the Hermetia illucens pupariums. The invention also disclose preparation method of composite material and thin film of Hermetia illucens pupariums and antibacterial and antimildew additive.Type: ApplicationFiled: November 13, 2020Publication date: January 5, 2023Inventors: Chi-Hui Tsou, Manuel Reyes De Guzman, Pranut Potiyaraj, Xuemei Zhang, Ya-Li Sun, Chen Gao, Xuefei Hu, Fei-Fan Ge, Juan Du, Chunyan Zeng, Tao Yang, Ya-Ling Lee, Chih-Yuan Tsou, Jian Chen, Zhijun Chen, Shuai Yuan, Yi-Hua Wen, Chin-San Wu
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Publication number: 20220391183Abstract: Techniques are provided for mapping natural language to code segments. In one embodiment, the techniques involve receiving a document and software code, wherein the document comprises a natural language description of a use of the code, generating, via a vectorization process performed on the document, at least one vector or word embedding, generating, via a natural language processing technique performed on the at least one vector or word embedding, a first label set, generating, via a machine learning analysis of the software code, a second label set, determining, based on a comparison of the first label set and the second label set, a match confidence between the document and the software code, wherein the match confidence indicates a measure of similarity between the first label set and the second label set, and upon determining that the match confidence exceeds a predefined threshold, mapping the document to the software code.Type: ApplicationFiled: June 3, 2021Publication date: December 8, 2022Inventors: Zhong Fang YUAN, Bin SHANG, Li Ni ZHANG, Yong Fang LIANG, Chen GAO, Tong LIU
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Patent number: 11487930Abstract: Pattern matching using anchors during integrated circuit (IC) verification is disclosed. According to one embodiment, a method includes obtaining match time estimates associated with pattern anchors of different anchor types for an IC pattern, generating revised match time estimates based on a target IC layout, and then selecting the pattern anchor associated with the shortest revised match time estimate. Then, target anchors of the same anchor type as the selected pattern anchor are generated for the target IC layout, and the target IC layout is searched for the IC pattern using the selected pattern anchor and the target anchors.Type: GrantFiled: October 30, 2020Date of Patent: November 1, 2022Assignee: Synopsys, Inc.Inventors: Chen Gao, Yuli Xue, Tony Tan, Weiping Fang
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Publication number: 20220318539Abstract: This invention provides a system and method for detecting and acquiring one or more in-focus images of one or more barcodes within the field of view of an imaging device. A measurement process measures depth-of-field of barcode detection. A plurality of nominal coarse focus settings of a variable lens allow sampling, in steps, of a lens adjustment range corresponding to allowable distances between the one or more barcodes and the image sensor, so that a step size of the sampling is less than a fraction of the depth-of-field of barcode detection. An acquisition process acquires a nominal coarse focus image for each nominal coarse focus setting. A barcode detection process detects one or more barcode-like regions and respective likelihoods. A fine focus process fine-adjusts, for each high-likelihood barcode, the variable lens near a location of the barcode-like regions. The process acquires an image for decoding using the fine adjusted setting.Type: ApplicationFiled: January 3, 2022Publication date: October 6, 2022Inventors: Ivan A. Bachelder, Chen Gao, Francisco Azcona Guerrero, Jose Fernandez Dorado, Esther Oteo Lozano, Andreas Weber
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Patent number: 11429472Abstract: A method, system, and computer program product for implementing automated cognitive software application error detection is provided. The method includes receiving data associated with model based self-learning software code. The annotated data is automatically divided with respect to specified categorization and grouping attributes and categorized groups comprising portions of the annotated data are generated and analyzed. At least one incorrect annotation associated a group of the categorized groups is detected and filtered. Likewise, a correct annotation for the group is detected and retrieved from a database. The correct annotation is appended to the group.Type: GrantFiled: March 26, 2021Date of Patent: August 30, 2022Assignee: International Business Machines CorporationInventors: Zhong Fang Yuan, Tong Liu, Li Ni Zhang, Yong Fang Liang, Chen Gao
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Publication number: 20220075948Abstract: Provided is a method, computer program product, and system for fusing knowledge graphs to generate a larger knowledgebase for responding to cross document questions. A processor may extract contextual information from a plurality of documents. The processor may generate, based on the extracted contextual information, a knowledge graph for each document of the plurality of documents. The processor may analyze each knowledge graph to determine if one or more entities of each knowledge graph are linked. The processor may fuse, in response to an entity in a first knowledge graph being linked to an entity in a second knowledge graph, the first knowledge graph with the second knowledge graph to create a fused knowledge graph.Type: ApplicationFiled: September 10, 2020Publication date: March 10, 2022Inventors: Zhong Fang Yuan, Chen Gao, Tong Liu, De Shuo Kong, Ci-Wei Lan, Rong Fu He
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Publication number: 20220027784Abstract: A method, system, and computer program product for reconstructing training data and building a new incremental learning model with the reconstructed training data that can be further trained. The method may include receiving new data to be inputted into a previously trained machine learning model, where the previously trained machine learning model has inaccessible training data. The method may also include generating simulated training data using a reverse form of the previously trained machine learning model. The method may also include verifying the simulated training data. The method may also include creating a new machine learning model using the simulated training data, where the new machine learning model includes a same structure as the previously trained machine learning model. The method may also include inputting the new data into the new machine learning model, where the new machine learning model is further trained with the new data.Type: ApplicationFiled: July 27, 2020Publication date: January 27, 2022Inventors: Zhong Fang Yuan, Tong Liu, Li Ni Zhang, Bin Shang, Yong Fang Liang, Chen Gao
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Patent number: 11216630Abstract: This invention provides a system and method for detecting and acquiring one or more in-focus images of one or more barcodes within the field of view of an imaging device. A measurement process measures depth-of-field of barcode detection. A plurality of nominal coarse focus settings of a variable lens allow sampling, in steps, of a lens adjustment range corresponding to allowable distances between the one or more barcodes and the image sensor, so that a step size of the sampling is less than a fraction of the depth-of-field of barcode detection. An acquisition process acquires a nominal coarse focus image for each nominal coarse focus setting. A barcode detection process detects one or more barcode-like regions and respective likelihoods. A fine focus process fine-adjusts, for each high-likelihood barcode, the variable lens near a location of the barcode-like regions. The process acquires an image for decoding using the fine adjusted setting.Type: GrantFiled: June 8, 2020Date of Patent: January 4, 2022Assignee: Cognex CorporationInventors: Ivan A. Bachelder, Chen Gao, Francisco Azcona Guerrero, Jose Fernandez Dorado, Esther Oteo Lozano, Andreas Weber
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Patent number: 11138397Abstract: Embodiments related to local tone mapping for symbol reading. A local pixel neighborhood metric is determined for at least one raw pixel in a region-of-interest, which identifies on one or more raw pixels near the at least one raw pixel. A local mapping function is determined for the at least one raw pixel that maps the value of the raw pixel to a mapped pixel value with a mapped bit depth that is smaller than the bit depth associated with the raw image. The local mapping function is based on a value of at least one other raw pixel near the at least one raw pixel within the local pixel neighborhood metric, and at least one parameter determined based on the raw image. A mapped image is computed for the region-of-interest by applying the local mapping function to the raw image.Type: GrantFiled: March 30, 2020Date of Patent: October 5, 2021Assignee: Cognex CorporationInventors: Chen Gao, Ivan Bachelder
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Publication number: 20210262780Abstract: Embodiments relate to predicting height information for an object. First distance data is determined at a first time when an object is at a first position that is only partially within the field-of-view. Second distance data is determined at a second, later time when the object is at a second, different position that is only partially within the field-of-view. A distance measurement model that models a physical parameter of the object within the field-of-view is determined for the object based on the first and second distance data. Third distance data indicative of an estimated distance to the object prior to the object being entirely within the field-of-view of the distance sensing device is determined based on the first distance data, the second distance data, and the distance measurement model. Data indicative of a height of the object is determined based on the third distance data.Type: ApplicationFiled: February 20, 2020Publication date: August 26, 2021Applicant: Cognex CorporationInventors: Chen Gao, Ivan Bachelder
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Publication number: 20210133383Abstract: Pattern matching using anchors during integrated circuit (IC) verification is disclosed. According to one embodiment, a method includes obtaining match time estimates associated with pattern anchors of different anchor types for an IC pattern, generating revised match time estimates based on a target IC layout, and then selecting the pattern anchor associated with the shortest revised match time estimate. Then, target anchors of the same anchor type as the selected pattern anchor are generated for the target IC layout, and the target IC layout is searched for the IC pattern using the selected pattern anchor and the target anchors.Type: ApplicationFiled: October 30, 2020Publication date: May 6, 2021Inventors: Chen GAO, Yuli XUE, Tony TAN, Weiping FAN
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Publication number: 20200410184Abstract: This invention provides a system and method for detecting and acquiring one or more in-focus images of one or more barcodes within the field of view of an imaging device. A measurement process measures depth-of-field of barcode detection. A plurality of nominal coarse focus settings of a variable lens allow sampling, in steps, of a lens adjustment range corresponding to allowable distances between the one or more barcodes and the image sensor, so that a step size of the sampling is less than a fraction of the depth-of-field of barcode detection. An acquisition process acquires a nominal coarse focus image for each nominal coarse focus setting. A barcode detection process detects one or more barcode-like regions and respective likelihoods. A fine focus process fine-adjusts, for each high-likelihood barcode, the variable lens near a location of the barcode-like regions. The process acquires an image for decoding using the fine adjusted setting.Type: ApplicationFiled: June 8, 2020Publication date: December 31, 2020Inventors: Ivan A. Bachelder, Chen Gao, Francisco Azcona Guerrero, Jose Fernandez Dorado, Esther Oteo Lozano, Andreas Weber
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Publication number: 20200293731Abstract: Embodiments related to local tone mapping for symbol reading. A local pixel neighborhood metric is determined for at least one raw pixel in a region-of-interest, which identifies on one or more raw pixels near the at least one raw pixel. A local mapping function is determined for the at least one raw pixel that maps the value of the raw pixel to a mapped pixel value with a mapped bit depth that is smaller than the bit depth associated with the raw image. The local mapping function is based on a value of at least one other raw pixel near the at least one raw pixel within the local pixel neighborhood metric, and at least one parameter determined based on the raw image. A mapped image is computed for the region-of-interest by applying the local mapping function to the raw image.Type: ApplicationFiled: March 30, 2020Publication date: September 17, 2020Applicant: Cognex CorporationInventors: Chen Gao, Irvan Bachelder
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Patent number: 10679024Abstract: This invention provides a system and method for detecting and acquiring one or more in-focus images of one or more barcodes within the field of view of an imaging device. A measurement process measures depth-of-field of barcode detection. A plurality of nominal coarse focus settings of a variable lens allow sampling, in steps, of a lens adjustment range corresponding to allowable distances between the one or more barcodes and the image sensor, so that a step size of the sampling is less than a fraction of the depth-of-field of barcode detection. An acquisition process acquires a nominal coarse focus image for each nominal coarse focus setting. A barcode detection process detects one or more barcode-like regions and respective likelihoods. A fine focus process fine-adjusts, for each high-likelihood barcode, the variable lens near a location of the barcode-like regions. The process acquires an image for decoding using the fine adjusted setting.Type: GrantFiled: July 24, 2018Date of Patent: June 9, 2020Assignee: COGNEX CORPORATIONInventors: Ivan A. Bachelder, Chen Gao, Francisco Azcona Guerrero, Jose Fernandez Dorado, Esther Oteo Lozano, Andreas Weber
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Patent number: 10607047Abstract: Embodiments related to local tone mapping for symbol reading. A local pixel neighborhood metric is determined for at least one raw pixel in a region-of-interest, which identifies on one or more raw pixels near the at least one raw pixel. A local mapping function is determined for the at least one raw pixel that maps the value of the raw pixel to a mapped pixel value with a mapped bit depth that is smaller than the bit depth associated with the raw image. The local mapping function is based on a value of at least one other raw pixel near the at least one raw pixel within the local pixel neighborhood metric, and at least one parameter determined based on the raw image. A mapped image is computed for the region-of-interest by applying the local mapping function to the raw image.Type: GrantFiled: December 3, 2018Date of Patent: March 31, 2020Assignee: COGNEX CORPORATIONInventors: Chen Gao, Ivan Bachelder
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Frequency converter, bypass frequency conversion control system and switching control method thereof
Patent number: 10601356Abstract: This invention provides a frequency converter and bypass frequency conversion control system, and its switching control method, belonging to the technical field of motor drive control. The frequency converter of this invention accesses a network voltage signal with a corresponding first frequency and first phase, wherein the frequency converter is configured to be able to operate in tracking and synchronization mode, and in tracking and synchronization mode, the frequency converter tracks the first frequency and first phase of the network voltage signal in order to basically synchronize the second frequency and second phase of its output voltage signal with the first frequency and corresponding first phase of the network voltage signal. The frequency converter of this invention achieves simple, low cost, fast synchronization with good synchronism.Type: GrantFiled: September 12, 2018Date of Patent: March 24, 2020Assignee: OTIS ELEVATOR COMPANYInventors: Kun Ma, Chen Gao -
Publication number: 20200034591Abstract: This invention provides a system and method for detecting and acquiring one or more in-focus images of one or more barcodes within the field of view of an imaging device. A measurement process measures depth-of-field of barcode detection. A plurality of nominal coarse focus settings of a variable lens allow sampling, in steps, of a lens adjustment range corresponding to allowable distances between the one or more barcodes and the image sensor, so that a step size of the sampling is less than a fraction of the depth-of-field of barcode detection. An acquisition process acquires a nominal coarse focus image for each nominal coarse focus setting. A barcode detection process detects one or more barcode-like regions and respective likelihoods. A fine focus process fine-adjusts, for each high-likelihood barcode, the variable lens near a location of the barcode-like regions. The process acquires an image for decoding using the fine adjusted setting.Type: ApplicationFiled: July 24, 2018Publication date: January 30, 2020Inventors: Ivan A. Bachelder, Chen Gao, Francisco Azcona Guerrero, Jose Fernandez Dorado, Esther Oteo Lozano, Andreas Weber
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Publication number: 20190171853Abstract: Embodiments related to local tone mapping for symbol reading. A local pixel neighborhood metric is determined for at least one raw pixel in a region-of-interest, which identifies on one or more raw pixels near the at least one raw pixel. A local mapping function is determined for the at least one raw pixel that maps the value of the raw pixel to a mapped pixel value with a mapped bit depth that is smaller than the bit depth associated with the raw image. The local mapping function is based on a value of at least one other raw pixel near the at least one raw pixel within the local pixel neighborhood metric, and at least one parameter determined based on the raw image. A mapped image is computed for the region-of-interest by applying the local mapping function to the raw image.Type: ApplicationFiled: December 3, 2018Publication date: June 6, 2019Applicant: Cognex CorporationInventors: Chen Gao, Ivan Bachelder
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FREQUENCY CONVERTER, BYPASS FREQUENCY CONVERSION CONTROL SYSTEM AND SWITCHING CONTROL METHOD THEREOF
Publication number: 20190089284Abstract: This invention provides a frequency converter and bypass frequency conversion control system, and its switching control method, belonging to the technical field of motor drive control. The frequency converter of this invention accesses a network voltage signal with a corresponding first frequency and first phase, wherein the frequency converter is configured to be able to operate in tracking and synchronization mode, and in tracking and synchronization mode, the frequency converter tracks the first frequency and first phase of the network voltage signal in order to basically synchronize the second frequency and second phase of its output voltage signal with the first frequency and corresponding first phase of the network voltage signal. The frequency converter of this invention achieves simple, low cost, fast synchronization with good synchronism.Type: ApplicationFiled: September 12, 2018Publication date: March 21, 2019Inventors: Kun Ma, Chen Gao -
Patent number: D884914Type: GrantFiled: August 23, 2019Date of Patent: May 19, 2020Assignee: SHENZHEN ZHONGDE BOEN TECHNOLOGY CO., LTD.Inventor: Chen Gao