Patents by Inventor Xiaodong Huang
Xiaodong Huang 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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Patent number: 10950411Abstract: The present invention discloses a control method for a multi-phase winding deflection scanning device, comprising: defining a rectangular coordinate system where deflection scanning tracks are located; sequentially decomposing the deflection scanning tracks into finite point rectangular coordinate data; translating the rectangular coordinate data into corresponding point resultant exciting current data; decomposing the resultant exciting current data into n-phase winding exciting current data; and translating the n-phase winding exciting current data into corresponding n-phase control instruction electrical signals and outputting same to a drive power supply, amplifying the output electrical signals by the drive power supply and providing same for the multi-phase winding deflection scanning device as exciting current.Type: GrantFiled: January 17, 2020Date of Patent: March 16, 2021Inventors: Xiaodong Huang, Shouqi Wei, Xiang Fei, Yujiang Qin, Yang Dong, Fengbin Huang, Wenming Guo
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Patent number: 10899910Abstract: A cationic polymer salt composition is provided that includes a reaction product derived from reaction of a polyamine or a polyalkyleneimine and a substituted alkyl trialkyl quaternary ammonium salt. Also provided are surfactant compositions. The compositions may also include carriers, such as water, methanol, ethanol, propanol, isopropanol, butanol, isobutanol, monoethyleneglycol, an ethyleneglycol monobutyl ether, and hexylene glycol.Type: GrantFiled: December 30, 2019Date of Patent: January 26, 2021Assignee: ECOLAB USA INC.Inventors: Zhengang Zong, Kun Xiong, Jeffrey R. Cramm, Xiaodong Huang, Jeremy Moloney, Ashish Dhawan
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Publication number: 20200379496Abstract: A power factor correction circuit includes a power meter configured to measure a total harmonic distortion (THD) at an input port; a switching-type regulator that is controllable by a switch control signal in order to adjust a power factor; and a controller configured to generate the switch control signal to control the switching-type regulator to perform power factor correction, where the controller adjusts an on-time of a main switch of the switching-type regulator based on the measured THD to decrease the THD.Type: ApplicationFiled: May 25, 2020Publication date: December 3, 2020Inventors: Zhaofeng Wang, Xiaodong Huang, Chen Zhao
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Publication number: 20200379495Abstract: A power factor correction circuit includes a power meter configured to measure a total harmonic distortion (THD) and an amplitude ratio of each harmonic component at an input port; a switching-type regulator that is controllable by a switch control signal in order to adjust a power factor; and a controller configured to generate the switch control signal to control the switching-type regulator to perform power factor correction, where the controller decreases the THD by adjusting a current reference signal according to the measured THD and the amplitude ratio of each harmonic component.Type: ApplicationFiled: May 25, 2020Publication date: December 3, 2020Inventors: Zhaofeng Wang, Xiaodong Huang, Chen Zhao
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Publication number: 20200372022Abstract: Techniques for implementing a non-relational database that makes efficient use of collections within the database. For one or more collections, two or more sub-collections can be created for storing documents. Each collection can be configured as a single partition entity or a partitioned entity within the database. Each sub-collection is identified by a sub-collection identifier. If the collection is configured as a partitioned entity, then a partition key can be determined for documents to be accessed in the collection. The partition key can be extended with the sub-collection ID to form a compound property (sub-collection ID, partition key) that determines placements of the respective documents in the identified sub-collection across partitions of the collection. If the collection is configured as a single partition entity, then a field for the partition key is ignored and the respective documents are placed in the identified sub-collection within the single partition of the collection.Type: ApplicationFiled: August 13, 2020Publication date: November 26, 2020Inventors: Sathishkumar Kaliavaradhan, Amit Shah, Steven Keller, Xiaodong Huang, Ayush Jain
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Patent number: 10823926Abstract: Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of fibers attached to a second end of the optical signal path via a second WDM filter, wherein at least the first set of fibers is a ribbon fiber. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus.Type: GrantFiled: October 17, 2019Date of Patent: November 3, 2020Assignee: Auxora (Shenzhen) Inc.Inventors: Jinghui Li, Yuan Liu, Haiquan Zhang, Xiaodong Huang
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Patent number: 10823925Abstract: Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of fibers attached to a second end of the optical signal path via a second WDM filter, wherein at least the first set of fibers is a ribbon fiber. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus.Type: GrantFiled: October 17, 2019Date of Patent: November 3, 2020Assignee: Auxora (Shenzhen) IncInventors: Jinghui Li, Yuan Liu, Haiquan Zhang, Xiaodong Huang
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Patent number: 10819224Abstract: A power factor correction circuit can include: a power meter configured to measure a power factor at an input port; a switching-type regulator that is controllable by a switching control signal in order to adjust the power factor of an input AC power; an EMI filter disposed between the switching-type regulator and the input port; and a controller configured to generate the switching control signal to maximize the power factor by adjusting a current reference signal according to a measured power factor, where the current reference signal represents an expected inductor current of the switching-type regulator.Type: GrantFiled: July 16, 2019Date of Patent: October 27, 2020Assignee: Silergy Semiconductor Technology (Hangzhou) LTDInventors: Chen Zhao, Zhaofeng Wang, Xiaodong Huang
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Patent number: 10812006Abstract: A motor drive device can include: a control circuit configured to adjust each phase current of a three-phase inverter of a motor; where the phase current of the three-phase inverter rises from zero to a first threshold during a first time interval; and where the phase current is controlled to drop gradually from the first threshold to zero during a second time interval in order to increase the second time interval.Type: GrantFiled: January 16, 2019Date of Patent: October 20, 2020Assignee: Silergy Semiconductor Technology (Hangzhou) LTDInventors: Xiaodong Huang, Lei Shen
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Patent number: 10804070Abstract: The present invention relates to a deflection scanning device with a multi-phase winding and a deflection scanning system. The deflection scanning device is of an axisymmetric structure, and comprises a ferromagnetic frame and a deflection scanning winding, wherein the inner side of the ferromagnetic frame is longitudinally provided with 2aw wire slots equally distributed along the circumference; and the deflection scanning winding comprises a w-phase winding, wherein the axis of the each phase winding is symmetrically distributed. The deflection scanning system comprises a deflection scanning device, a drive power supply unit and, a central, control unit. The deflection scanning device of the present invention can improve the uniformity of the magnetic induction intensity in the charged particle beam channel, and then reduce the defocusing effect and improve the scanning accuracy.Type: GrantFiled: July 24, 2019Date of Patent: October 13, 2020Inventors: Xiaodong Huang, Shouqi Wei, Yujiang Qin, Guokun Zhu, Shuli Cai, Xiang Fei, Guohua Huang, Jianfei Zhang, Yinhong Qin
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Patent number: 10782241Abstract: A method of detecting free flocculant polymer having a net charge present in an aqueous phase of a multi-phase substance is provided. The multi-phase substance comprises a solid phase, an organic phase, and the aqueous phase. The method comprises separating the solid phase from the multi-phase substance to form a dual phase top liquid comprising the organic phase and the aqueous phase; separating the organic phase from the dual phase top liquid, leaving the aqueous phase; combining the free flocculant polymer in the aqueous phase and a dye having an opposite net charge than that of the free flocculant polymer, thereby causing a spectroscopically observable change in the aqueous phase; and analyzing the aqueous phase via spectrometry to determine the concentration of the free flocculant polymer in the multi-phase substance.Type: GrantFiled: July 27, 2018Date of Patent: September 22, 2020Assignee: Ecolab USA Inc.Inventors: Hua Zheng, Xiaodong Huang, Tiandi Zhuang, Lan Xiao, Patrick G. Murray, Philip M. Eastin
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Patent number: 10776369Abstract: Techniques for implementing a non-relational database that makes efficient use of collections within the database. For one or more collections, two or more sub-collections can be created for storing documents. Each collection can be configured as a single partition entity or a partitioned entity within the database. Each sub-collection is identified by a sub-collection identifier. If the collection is configured as a partitioned entity, then a partition key can be determined for documents to be accessed in the collection. The partition key can be extended with the sub-collection ID to form a compound property (sub-collection ID, partition key) that determines placements of the respective documents in the identified sub-collection across partitions of the collection. If the collection is configured as a single partition entity, then a field for the partition key is ignored and the respective documents are placed in the identified sub-collection within the single partition of the collection.Type: GrantFiled: June 21, 2017Date of Patent: September 15, 2020Assignee: Citrix Systems, Inc.Inventors: Sathishkumar Kaliavaradhan, Amit Shah, Steven Keller, Xiaodong Huang, Ayush Jain
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Publication number: 20200160719Abstract: The present disclosure relates to systems and methods for determining a pickup location. The systems may perform the methods to receive a request or an intention for a first transportation service that is allowed to combine with a second transportation service from a terminal association with a service requester, the request or the intention including an origin location of the first transportation service and a destination of the first transportation service; obtain a plurality of candidate locations; for each of the plurality of candidate locations, determine a matching index value of the candidate location based on the origin location or the destination, wherein the matching index value is a probability of becoming a pickup location of the first transportation service; select one or more pickup locations from the plurality of candidate locations based on the matching index value; and transmit the one or more pickup locations to the terminal.Type: ApplicationFiled: January 23, 2020Publication date: May 21, 2020Applicant: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.Inventors: Long ZHANG, Xiaodong HUANG, Xudong ZHANG
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Publication number: 20200152413Abstract: The present invention discloses a control method for a multi-phase winding deflection scanning device, comprising: defining a rectangular coordinate system where deflection scanning tracks are located; sequentially decomposing the deflection scanning tracks into finite point rectangular coordinate data; translating the rectangular coordinate data into corresponding point resultant exciting current data; decomposing the resultant exciting current data into n-phase winding exciting current data; and translating the n-phase winding exciting current data into corresponding n-phase control instruction electrical signals and outputting same to a drive power supply, amplifying the output electrical signals by the drive power supply and providing same for the multi-phase winding deflection scanning device as exciting current.Type: ApplicationFiled: January 17, 2020Publication date: May 14, 2020Inventors: Xiaodong Huang, Shouqi Wei, Xiang Fei, Yujiang Qin, Yang Dong, Fengbin Huang, Wenming Guo
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Publication number: 20200140653Abstract: A cationic polymer salt composition is provided that includes a reaction product derived from reaction of a polyamine or a polyalkyleneimine and a substituted alkyl trialkyl quaternary ammonium salt. Also provided are surfactant compositions. The compositions may also include carriers, such as water, methanol, ethanol, propanol, isopropanol, butanol, isobutanol, monoethyleneglycol, an ethyleneglycol monobutyl ether, and hexylene glycol.Type: ApplicationFiled: December 30, 2019Publication date: May 7, 2020Applicant: ECOLAB USA, INC.Inventors: Zhengang Zong, Kun Xiong, Jeffrey R. Cramm, Xiaodong Huang, Jeremy Moloney, Ashish Dhawan
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Patent number: 10634728Abstract: A method of detecting a state of charge of a battery, can include: obtaining an open circuit voltage in a present cycle according to an open circuit voltage of a previous cycle, a battery internal resistance of the previous cycle, and a battery capacitance of the previous cycle, where the battery internal resistance and the battery capacitance are updated according to the state of charge of the battery; and determining the state of charge of the battery according to the open circuit voltage in the present cycle.Type: GrantFiled: June 9, 2017Date of Patent: April 28, 2020Assignee: Silergy Semiconductor Technology (Hangzhou) LTDInventors: Xiaodong Huang, Hejinsheng Cao
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Publication number: 20200109958Abstract: A system includes at least one computer-readable storage medium including a set of instructions for determining target stations for a region in an on-demand service; and at least one processor in communication with the computer-readable storage medium. When executing the set of instructions, the at least one processor is directed to: obtain electronic signals encoding road information associated with a region and a plurality of service starting points of historical service orders associated with the region; operate logic circuits in the at least one processor to cluster the plurality of service starting points into a plurality of clusters based on the service starting points and the road information; operate the logic circuits in the at least one processor to determine one service starting point as a candidate point for each of the plurality of clusters based on a popularity score at the service starting point.Type: ApplicationFiled: December 11, 2019Publication date: April 9, 2020Applicant: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.Inventors: Xiaodong HUANG, Fenglei WANG
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Patent number: 10582577Abstract: Disclosed an LED drive circuit, which is configured to switch the connection of a plurality of LED loads between parallel connection and series connection. When an input voltage is low, the LED loads are controlled to be in parallel connection, and the transistors provided on corresponding parallel branch circuits are controlled to operate in a linear state for regulating the current flowing through the parallel branch circuits. When the input voltage increases, the LED loads or LED drive modules are controlled to be in series connection, and the transistors provided on the series branch circuits are controlled to regulate the current flowing through all the LED loads. Accordingly, on one hand, all the LED loads have a same operating time, on the other hand, all the LED loads operate during most time of every operating cycle, which improves the lifetime of the circuit and the utilization of the LED loads.Type: GrantFiled: September 25, 2017Date of Patent: March 3, 2020Assignee: SILERGY SEMICONDUCTOR TECHNOLOGY (HANGZHOU) LTD.Inventors: Chen Zhao, Xiaodong Huang
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Patent number: 10579612Abstract: A technique for enforcing uniqueness of property-value pairs in a schemaless data store includes receiving a request to uniquely store a property-value pair PV1 in a first collection of the data store. In response to receiving the request, a property-value pair PV2 is constructed that includes (a) a property on which the data store enforces uniqueness in a second collection of the data store and (b) a corresponding value that provides a formatted version of PV1. The technique includes performing a store-if-unique operation configured to (i) generate a failing result in response to PV2 already existing in the second collection and (ii) store PV2 in the second collection in response to PV2 not already existing in the second collection. If the store-if-unique operation fails, the request to store PV1 in the first collection is denied; otherwise, the request is granted.Type: GrantFiled: April 3, 2017Date of Patent: March 3, 2020Assignee: Citrix Systems, Inc.Inventors: Xiaodong Huang, Wenchao Li
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Patent number: 10564359Abstract: Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of pigtail fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of pigtail fibers attached to a second end of the optical signal path via a second WDM filter. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus.Type: GrantFiled: January 4, 2018Date of Patent: February 18, 2020Assignee: Auxora (Shenzhen) Inc.Inventors: Jinghui Li, Yuan Liu, Haiquan Zhang, Xiaodong Huang