Patents by Inventor Huajun Cao

Huajun 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).

  • Publication number: 20200164476
    Abstract: The disclosure provides a method and system for milling injected cutting fluid under different working conditions. By analyzing influence of airflow fields in a milling area under different working conditions on injection of cutting fluid, an influence rule of a helical angle and a rotation speed of a cutter on the flow field is quantitatively analyzed, an optimal target distance of a nozzle, an angle between the nozzle and a milling cutter feeding direction and an angle between the nozzle and the surface of a workpiece are comprehensively determined, the nozzle is set according to a determined setting manner, and lubricating oil is sprayed to the milling area by utilizing the nozzle.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 28, 2020
    Inventors: Changhe LI, Qingan YIN, Huajun CAO, Yonghong LIU, Wenfeng DING, Naiqing ZHANG, Lan DONG, Zhenjing DUAN, Yanbin ZHANG, Xiufang BAI, Menghua SUI, Wentao WU, GAO Teng, Min YANG, Dongzhou JIA, Runze LI, Yali HOU
  • Publication number: 20200164475
    Abstract: The present invention discloses a tool device for auxiliary chip breaking and a tool system for auxiliary chip breaking under different lubricating conditions, which solves the problem that long chips affect the surface quality of a workpiece in the prior art and has the beneficial effects of realizing chip breaking and wide scope of application. The solution of the present invention is as follows: the tool device for auxiliary chip breaking includes a cutting mechanism for cutting the workpiece, arranged above the workpiece; a tool magazine mechanism, including a first rotating mechanism and a plurality of tools connected with the first rotating mechanism; and a tool changing mechanism, including a second rotating mechanism and manipulators connected with the second rotating mechanism, and arranged between the tool magazine mechanism and the cutting mechanism.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 28, 2020
    Inventors: Changhe LI, Qingan YIN, Huajun CAO, Wenfeng DING, Naiqing ZHANG, Yonghong LIU, Xiufang BAI, Lan DONG, Zhenjing DUAN, Yanbin ZHANG, Menghua SUI, Wentao WU, Teng GAO, Min YANG, Dongzhou JIA, Runze LI, Yali HOU
  • Publication number: 20200114483
    Abstract: The present invention relates to a milling machine processing system with an intelligently follow-up cutting fluid nozzle and a working method. The milling machine processing system comprises a workpiece stage, wherein a milling machine box body is arranged above the workpiece stage; a milling cutter mechanism is mounted on the milling machine box body for processing workpieces on the workpiece stage; a rotating mechanism is mounted on an end surface of the milling machine box body located at one side of a milling cutter; the rotating mechanism is connected with a two-axis linkage mechanism and drives the two-axis linkage mechanism to rotate about a center line on which the milling cutter is located; the two-axis linkage system is connected with a nozzle through an angle adjusting mechanism and is used for adjusting a position and an angle of the nozzle.
    Type: Application
    Filed: December 12, 2019
    Publication date: April 16, 2020
    Inventors: Changhe LI, Wentao WU, Huajun CAO, Cong MAO, Wenfeng DING, Naiqing ZHANG, Menghua SUI, Han ZHAI, Teng GAO, Yanbin ZHANG, Min YANG, Dongzhou JIA, Qingan YIN, Xiaoyang ZHANG, Yali HOU
  • Publication number: 20190228762
    Abstract: Embodiments of the present invention relate to a method and an apparatus for optimizing a model applicable to pattern recognition, and a terminal device. The terminal device receives a universal model delivered by a server, where the universal model includes an original feature parameter; recognizes target information by using the universal model, and collects a plurality of local samples; when a model optimization condition is met, corrects the original feature parameter by using a first training algorithm to obtain a new feature parameter; and optimizes the universal model according to a second training algorithm and the new feature parameter, to obtain an optimized universal model. That is, in the present invention, the terminal device further optimizes, according to the collected local samples, the universal model received from the server to obtain a relatively personalized model applicable to pattern recognition.
    Type: Application
    Filed: June 21, 2017
    Publication date: July 25, 2019
    Inventors: Xiyong WANG, Hongrui JIANG, Huajun CAO
  • Publication number: 20180354096
    Abstract: A multi-angle two-dimensional ultrasonic vibration assisted nanofluid micro-lubrication grinding device includes a workpiece fixture for clamping a workpiece and a grinding wheel for grinding the workpiece, the fixture being connected with a two-dimensional ultrasonic vibration device to maintain the sharpness of the grinding wheel cutting edge and cool the grinding temperature on the workpiece surface; a jetting mechanism used for jetting nanofluid to the workpiece is arranged on one side of the grinding wheel so as to form two-dimensional ultrasonic vibration and nanofluid micro-lubrication grinding coupling; the device applies the variable-angle two-dimensional ultrasonic vibration technology to grinding processing, and adjusts the angles of two ultrasonic vibrators to generate different combined vibration directions to change the relative movement trajectories of abrasive particles and a workpiece.
    Type: Application
    Filed: February 21, 2017
    Publication date: December 13, 2018
    Applicant: QINGDAO TECHNOLOGICAL UNIVERSITY
    Inventors: Changhe LI, Xianpeng ZHANG, Yanbin ZHANG, Min YANG, Shuming GUO, Naiqing ZHANG, Qidong WU, Huajun CAO
  • Patent number: 7649995
    Abstract: A method and device for authenticating a MS has an R-UIM by using CAVE Algorithm are provided. The hardware structure of the device includes a cdma2000/HRPD dual-mode chip, a User Identity Module supporting the CAVE algorithm. The dual-mode terminal forms the NAI value with the domain name stored in a memory of the dual-mode terminal in advance by the IMSI. The dual-mode terminal extracts a RAND that is necessary for the calculation of an authentication parameter1 from the Random values included in a Chap Challenge message, instructs the R-UIM card to use the CAVE algorithm to calculate the authentication parameter1 with the RAND and an existing SSD_A in the R-UIM card, and bears the authentication parameter1 by the Result domain of a Chap Response message. With the present invention, the wastes caused by the replacement of R-UIM cards can be avoided.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: January 19, 2010
    Assignees: Samsung Electronics Co., Ltd., Beijing Samsung Telecom R&D Center
    Inventors: Weimin Liu, Huajun Cao, Guang Yang
  • Patent number: 7607013
    Abstract: A method for Access Authentication in the High Rate Packet Data Network is proposed in the present invention comprising steps of the AN-AAA receiving the Radius Access Request message sent from the HRPD AN; the AN-AAA judging whether a terminal is a roaming one according to the Network Access ID and transmits the roaming terminal's authentication information to the terminal's home nerwork. If said terminal is a local one, the AN-AAA judges the type of the terminal according to the NAI value. If said terminal is a single-mode one, the AN-AAA works out the Result2 with the MD5 algorithm. if said terminal is in dual-mode, the AN-AAA calculates the Result2 with the CAVE algorithm to compare the Result1 with the Result2.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: October 20, 2009
    Assignees: Samsung Electronics Co., Ltd, Beijing Samsung Telecom R&D Center
    Inventors: Weimin Liu, Huajun Cao, Guang Yang
  • Publication number: 20050221801
    Abstract: A method and device for authenticating a MS has an R-UIM by using CAVE Algorithm are provided. The hardware structure of the device includes a cdma2000/HRPD dual-mode chip, a User Identity Module supporting the CAVE algorithm. The dual-mode terminal forms the NAI value with the domain name stored in a memory of the dual-mode terminal in advance by the IMSI. The dual-mode terminal extracts a RAND that is necessary for the calculation of an authentication parameters from the Random values included in a Chap Challenge message, instructs the R-UIM card to use the CAVE algorithm to calculate the authentication parameters with the RAND and an exsiting SSD_A in the R-UIM card, and bears the authentication parameters by the Result domain of a Chap Response message. With the present invention, the wastes caused by the replacement of R-UIM cards can be avoided.
    Type: Application
    Filed: February 28, 2005
    Publication date: October 6, 2005
    Applicants: SAMSUNG ELECTRONICS CO., LTD., BEIJING SAMSUNG TELECOM R&D CENTER
    Inventors: Weimin Liu, Huajun Cao, Guang Yang
  • Publication number: 20050197104
    Abstract: A method for Access Authentication in the High Rate Packet Data Network is proposed in the present invention comprising steps of the AN-AAA receiving the Radius Access Request message sent from the HRPD AN; the AN-AAA judging whether a terminal is a roaming one according to the Network Access ID and transmits the roaming terminal's authentication information to the terminal's home nerwork. If said terminal is a local one, the AN-AAA judges the type of the terminal according to the NAI value. If said terminal is a single-mode one, the AN-AAA works out the Result2 with the MD5 algorithm. if said terminal is in dual-mode, the AN-AAA calculates the Result2 with the CAVE algorithm to compare the Result1 with the Result2.
    Type: Application
    Filed: February 28, 2005
    Publication date: September 8, 2005
    Applicants: SAMSUNG ELECTRONICS CO., LTD., BEIJING SAMSUNG TELECOM R&D CENTER
    Inventors: Weimin Liu, Huajun Cao, Guang Yang