Patents by Inventor Hu CAO
Hu CAO 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: 20240149859Abstract: An electric vehicle drive system and an electric vehicle are provided. The electric vehicle drive system includes a first powertrain, a second powertrain, a first transmission system, a second transmission system, and a battery system. The first powertrain is connected to the first transmission system. The second powertrain is connected to the second transmission system. The first powertrain includes a generator and an engine, and the engine drives the generator to generate electric energy. The generator drives the first-side wheels by using the first transmission system. The second powertrain drives second-side wheels by using the second transmission system. The battery system is connected to the generator and the second powertrain, and is configured to receive the electric energy output by the generator, and output stored electric energy to at least one of the second powertrain or the generator.Type: ApplicationFiled: January 17, 2024Publication date: May 9, 2024Inventors: Yang CHENG, Yi CAO, Jingzhou WEI, Wenwu MA, Hu ZHONG
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Patent number: 11945066Abstract: The present disclosure relates to a method for online monitoring defect of a milling tool, comprising the steps of: 1) installing a vibration sensor module on a machine tool spindle; 2) acquiring initial sample data; 3) setting a threshold value ?S0 with a time interval of T; 4) measuring vibration signals of n blades in x, y and z directions in each period T0; 5) shaping to obtain n strong vibration cutting wave data respectively formed by n blades in x and y directions in each period T0; 6) analyzing and processing the strong vibration cutting wave data to obtain the difference ?S0/ between the cutting strong vibration wave areas formed by each blade in each period T0; 7) outputting a blade wear or defect signal to a display alarm module according to the constraint conditions by a data comparing and analyzing module, and giving an alarm by a display alarm module.Type: GrantFiled: September 3, 2020Date of Patent: April 2, 2024Assignee: CHONGQING UNIVERSITYInventors: Huajun Cao, Degui Qiu, Hu Liu, Yingqing Chai
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Publication number: 20240092438Abstract: A tunnel operation robot includes a robot body, a walking module, a fixed wing module and a plurality of rotatable wing modules. Both sides of the robot body are provided with cantilever parts, which are collinearly arranged. The walking module is arranged on the robot body. The fixed wing module includes a fixed fan, is fixedly arranged on the robot body, and is configured to provide a pressure for the walking module to be attached to and pressed against the tunnel wall surface. The plurality of rotatable wing modules are respectively arranged on the cantilever parts on both sides of the robot body, and include a rotatable rotating fan and a wind direction adjustment driver. Each rotating fan has a rotation axis parallel to the cantilever parts and an air outlet direction perpendicular to the cantilever parts, and the wind direction adjustment driver is connected to the rotating fan.Type: ApplicationFiled: September 18, 2023Publication date: March 21, 2024Applicants: China Railway Design Corporation (CRDC), TSDI(Tianjin)Testing Technology Co., LtdInventors: Hu CAO, Pan HUANG, Bo LI, Ji ZHANG, ChunShan REN, ShiQi LIU, Yin WANG, ZhiHua LI, MingFeng HE
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Publication number: 20230306768Abstract: A machine learning based key-value extraction model extracts fields/entities from documents. The input images are processed through OCR. A list of words (uni-grams) and their coordinates are extracted from the original images. Following word cleaning and manipulation, n-gram creation (multi-words), and feature engineering, the transformed data is fed into a classification algorithm to predict if a uni-gram or n-gram is one of the target entities or a non-entity. Following the first step that includes unique feature engineering, a second step improves extraction accuracy among the fields/entities.Type: ApplicationFiled: July 30, 2021Publication date: September 28, 2023Inventor: Hu Cao
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Publication number: 20230127099Abstract: A charging and discharging system includes multiple battery packs and one or more voltage equalization modules. The multiple battery packs are connected in parallel. Each of a subset of the battery packs is connected in series with a voltage equalization module of the one or more voltage equalization modules. The voltage equalization module is configured to adjust, to a target voltage, an output voltage of the corresponding battery pack and the voltage equalization module that are connected in series.Type: ApplicationFiled: December 22, 2022Publication date: April 27, 2023Inventors: Hu CAO, Shaowen YIN, Xueqin YIN, Hongyan GUANG
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Publication number: 20220401371Abstract: A compartmented hard shell capsule for containing active formulations, and methods and apparatuses for forming, filling and encapsulating the compartmented hard shell capsules. The compartmented hard shell capsule includes a cap portion and a body portion. The cap portion has a hollow cavity defining a cap chamber. The body portion can be removably inserted into the cap portion. The body portion has an open end, a closed end and a sidewall defining a hollow cavity and a serrated edge along the open end. The serrated edge may be folded over to form a barrier to enclose the body portion, thereby creating a body chamber that is separate from the cap chamber when the body portion is inserted into the cap portion. The methods for filling and encapsulating the compartmented hard shell capsules can be completed in one continuous process, which increases cost-effectiveness for use of the compartmented hard shell capsules.Type: ApplicationFiled: June 17, 2021Publication date: December 22, 2022Inventors: Karl Wei CAO, Hu CAO
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Publication number: 20210154099Abstract: A method of filling two piece hard shell capsules from top through opening on the center of domes of fused hard shell—FETH capsules, rather than open the “prelock” capsules and filling liquid into the body part of the hard shell capsules. The novel method will (i) significantly reduce the size of air bubbles, (ii) eliminate need for post filling banding or sealing, (iii) able to use any type of two piece hard shell capsules, eliminate the need for specially designed liquid fill friendly capsule and (iv) streamlined the traditional liquid filling process and make it into one continuous process. The capsules filled by the new methods hold 10-15% more liquid and become more competitive to soft gel capsules in terms of costs and efficiency.Type: ApplicationFiled: November 22, 2019Publication date: May 27, 2021Inventors: Karl Wei CAO, Hu CAO
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Patent number: 10897218Abstract: The present application provides a control system and method for a permanent magnet synchronous traction and transmission system. A The control system comprises a sampling unit and a controller; the sampling unit collecting an operation excitation current and an operation torque current, a input capacitor voltage and a rotor frequency; the controller acquires a target torque instruction issued to the traction and transmission system, calculates a target excitation current value and a target torque current value, and generates an excitation current regulation value and a torque current regulation value; a regulation unit is configured to generate a torque current regulation value according to the target torque current value and an operation torque current value and generate a target modulation ratio and a modulation frequency according to the excitation current regulation value and the torque current regulation value output from the regulation unit and finally output a PWM modulation wave control signal.Type: GrantFiled: September 21, 2020Date of Patent: January 19, 2021Assignee: CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD. (CN)Inventors: Jingbin Bi, Meng Xia, Hu Cao, Fanfei Zeng
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Publication number: 20210013821Abstract: The present application provides a control system and method for a permanent magnet synchronous traction and transmission system. A The control system comprises a sampling unit and a controller; the sampling unit collecting an operation excitation current and an operation torque current, a input capacitor voltage and a rotor frequency; the controller acquires a target torque instruction issued to the traction and transmission system, calculates a target excitation current value and a target torque current value, and generates an excitation current regulation value and a torque current regulation value; a regulation unit is configured to generate a torque current regulation value according to the target torque current value and an operation torque current value and generate a target modulation ratio and a modulation frequency according to the excitation current regulation value and the torque current regulation value output from the regulation unit and finally output a PWM modulation wave control signal.Type: ApplicationFiled: September 21, 2020Publication date: January 14, 2021Inventors: Jingbin BI, Meng XIA, Hu CAO, Fanfei ZENG
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Patent number: 10521588Abstract: A sample program being evaluated for malware is scanned for presence of a critical code block. A path guide is generated for the sample program, with the path guide containing information on executing the sample program so that an execution path that leads to the critical code block is taken at runtime of the sample program. The path guide is applied to the sample program during dynamic analysis of the sample program so that behavior of the sample program during execution to the critical code block can be observed. This advantageously allows for detection of malicious samples, allowing for a response action to be taken against them.Type: GrantFiled: August 30, 2017Date of Patent: December 31, 2019Assignee: Trend Micro IncorporatedInventors: Qiang Huang, Hu Cao, Jun Wu
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Patent number: 10162966Abstract: A malware detection system for evaluating sample programs for malware incorporates an evasion code detector. The evasion code detector includes semantic patterns for identifying conditional statements and other features employed by evasion code. The system inserts breakpoints at conditional statements, compares expected and actual evaluated values of conditional variables of the conditional statements, and changes the execution path of the sample program based on the comparison. Changing the execution path of the sample program to an expected execution path counteracts the evasion code, allowing for the true nature of the sample program to be revealed during runtime.Type: GrantFiled: October 19, 2016Date of Patent: December 25, 2018Assignee: Trend Micro IncorporatedInventors: Qiang Huang, Hu Cao, Xinfeng Liu
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Patent number: 9817974Abstract: Execution of a sample program being evaluated for malware is initiated and then suspended to set breakpoints on timing operations of the sample program. Execution of the sample program is suspended again when a breakpoint is hit, at which time a loop is identified in the sample program and evaluated for presence of stalling code. Execution flow of the sample program is changed to exit the loop when the loop is determined to include the stalling code.Type: GrantFiled: November 10, 2015Date of Patent: November 14, 2017Assignee: Trend Micro IncorporatedInventors: Qiang Huang, Hu Cao, Kai Yu
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Patent number: 9756069Abstract: A virtual machine is used to perform a raw scan for evasive malware on a host computer without requiring an interrupt or restart of a host operating system. An antivirus program installs a raw scanner virtual machine. The raw scanner virtual machine is triggered to scan files and memory for malware. The raw scan results are collected by the antivirus program for analysis, such as for use in generating a report or for removal of malware. The memory and files of the host are mapped to a guest space of the virtual machine.Type: GrantFiled: January 10, 2014Date of Patent: September 5, 2017Assignee: TREND MICRO INC.Inventors: Yuefeng Li, Qiang Huang, Hu Cao
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Patent number: 9669732Abstract: The present application relates to the electronic field of railways, and in particular to the traction control system for electric multiple units. A host processor of the traction control system for electric multiple units is connected to a subordinate computer board via a CPCI bus. The traction control system for electric multiple units comprises a fast computing board, a network module and a debugging module. An instruction is passed to the subordinate computer board via the CPCI bus, and meanwhile, the subordinate computer board passes status information to the host processor via the CPCI bus to realize overall control on the interior of the traction control system for electric multiple units. Bidirectional communication between the signal sampling board and the fast computing board is realized by a high-speed differential LinkPort bus to realize quick control on the inverter power module and the four-quadrant power module.Type: GrantFiled: May 20, 2015Date of Patent: June 6, 2017Assignee: CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD.Inventors: Fengzhao Cui, Yawei Zhang, Guobin Sun, Zhen Li, Hu Cao, Dawei Liang
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Publication number: 20170129364Abstract: The present application relates to the electronic field of railways, and in particular to the traction control system for electric multiple units. A host processor of the traction control system for electric multiple units is connected to a subordinate computer board via a CPCI bus. The traction control system for electric multiple units comprises a fast computing board, a network module and a debugging module. An instruction is passed to the subordinate computer board via the CPCI bus, and meanwhile, the subordinate computer board passes status information to the host processor via the CPCI bus to realize overall control on the interior of the traction control system for electric multiple units. Bidirectional communication between the signal sampling board and the fast computing board is realized by a high-speed differential LinkPort bus to realize quick control on the inverter power module and the four-quadrant power module.Type: ApplicationFiled: May 20, 2015Publication date: May 11, 2017Inventors: FENGZHAO CUI, YAWEI ZHANG, GUOBIN SUN, ZHEN LI, HU CAO, DAWEI LIANG
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Publication number: 20140045537Abstract: An apparatus for energy efficient location sensing of a mobile device, said apparatus comprising: An orientation sensing module for sensing the orientation of said mobile device; one or more location sensing modules for sensing the location of said mobile device, a control module for controlling said orientation sensing module such that it repeatedly senses the orientation of said mobile device, wherein said control module controls said one or more location sensing modules such that at least one of said one or more location sensing modules is switched on if said sensed orientation indicates an orientation change of said mobile device, wherein the frequency with which said orientation sensing module senses the orientation of said mobile device is changed depending on the time in accordance with the behaviour pattern of the user of said mobile device such that at a time where the behaviour pattern corresponds to a lower activity the sampling frequency is lower and at a time where the behaviour pattern corresponType: ApplicationFiled: August 7, 2013Publication date: February 13, 2014Applicant: NTT DOCOMO, Inc.Inventors: Marko LUTHER, Hu CAO, Bertrand SOUVILLE, Michael MARTH