Patents by Inventor Xiaopeng Chen
Xiaopeng Chen 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: 10922522Abstract: A finger vein recognition system includes an IR camera, a handle with a sensor and a IR LED array, and a microprocessor for controlling the LED array and processing image signals received from the camera. The luminescence of each LED in the LED array can be changed based on the position of a user's fingers and the environment, which improves the quality of images captured by the IR camera. The sensor detects the proximity of a user and activates the system.Type: GrantFiled: June 11, 2019Date of Patent: February 16, 2021Assignee: NXP USA, Inc.Inventors: Yuyun Hu, Xiaopeng Chen, Kai Zhu
-
Publication number: 20200387762Abstract: The application discloses a multi-task learning incorporating dependencies method for bionic eye's face attribute recognition, which is as follows: Determine the first face attribute and the second face attribute for attribute recognition of facial image. Obtain the first recognition task branch and the second recognition task branch. Establish the task dependency between the first recognition task branch and the second recognition task branch to obtain the first transformed face attribute fully connected layer related to the second face attribute. and the second transformed face attribute fully connected layer related to the first face attribute. Feed the first transformed face attribute fully connected layer into the prediction layer to predict the first face attribute of facial image. And feed the second transformed face attribute fully connected layer into the prediction layer to predict the second face attribute of facial image.Type: ApplicationFiled: June 4, 2019Publication date: December 10, 2020Inventors: Qiang Huang, Hyunwoo Kim, Di Fan, Xiaopeng Chen, Xuechao Chen
-
Publication number: 20200311370Abstract: A finger vein recognition system includes an IR camera, a handle with a sensor and a IR LED array, and a microprocessor for controlling the LED array and processing image signals received from the camera. The luminescence of each LED in the LED array can be changed based on the position of a user's fingers and the environment, which improves the quality of images captured by the IR camera. The sensor detects the proximity of a user and activates the system.Type: ApplicationFiled: June 11, 2019Publication date: October 1, 2020Inventors: YUYUN HU, Xiaopeng Chen, Kai Zhu
-
Publication number: 20200222932Abstract: A positioning clamp for spray-coating of a wheel trim ring includes a lower base plate, a circular bracket, an upper base plate, a plurality of guide rods, a plurality of sliding support parts and a distance adjusting mechanism. The distance adjusting mechanism is configured to drive the plurality of sliding support parts to approach a central position along the guide rods and to move away from the central position along the guide rods. According to the positioning clamp for spray-coating of the wheel trim ring, the position of each sliding support part can be adjusted to adapt to wheel trim rings of different sizes. Therefore, the positioning clamp for spray-coating of the wheel trim ring can replace a large number of positioning clamps of different sizes, and has the advantages of being simple in structure, stable and reliable in positioning, low in manufacturing cost and the like.Type: ApplicationFiled: October 8, 2019Publication date: July 16, 2020Inventors: Xiao Liu, Yudong Li, Xiaopeng Chen
-
Patent number: 10596671Abstract: A milling fixture for forged wheel includes a connecting plate installed on a milling machine table, a linear bearing installed on the connecting plate, a small diameter end of a positioning rod penetrates through a spring and a linear bearing, and a limiting screw installed on a side wall of the linear bearing and connected with the positioning rod. Under the coaction of the spring and an external force, the positioning rod is configured to move in the linear bearing. Bidirectional threaded rods are uniformly installed on a bottom plate, one end of each of the bidirectional threaded rods penetrate through pressure claws, the pressure claws are sandwiched between compression nuts and the connecting plate. The fixture can meet the requirement for milling a forged wheel, and at the same time, has the characteristics of a simple structure, is convenient to manufacture, provides stable performance and is low cost.Type: GrantFiled: August 2, 2018Date of Patent: March 24, 2020Assignee: CITIC DICASTAL CO., LTDInventors: Weidong Liu, Dan Yao, Xiaopeng Chen, Xing Wang, Haiping Chang
-
Patent number: 10513004Abstract: A wheel corner polishing device includes a station switching system, a valve hole polishing system, a bolt hole polishing system and a rim and cap section synchronous polishing system. The wheel corner polishing device can automatically polish four positions including bolt hole corners, a valve hole corner, outer rim corners and cap section corners of a wheel via upper and lower stations and coordination of the systems.Type: GrantFiled: November 2, 2017Date of Patent: December 24, 2019Assignee: CITIC Dicastal CO., LTD.Inventors: Huiying Liu, Lijie Hu, Xiaopeng Chen, Zenglei He, Yongwang Zhao
-
Patent number: 10493593Abstract: A wheel outer rim fillet dressing device, wherein after a wheel is roughly positioned, an electric cylinder drives a moving plate to descend to an appropriate position, an adjusting cylinder drives a second sliding table to move away from a first sliding table, the first sliding table moves synchronously with the second sliding table under the action of a second gear rack, thus the distance between a precision positioning post on the first sliding table and a precision positioning post on the second sliding table is adjusted, and the precision positioning posts contact a vertical surface of a cap seam allowance of the wheel and hold the wheel tightly. The adjusting cylinder is restarted, and the outer rim fillets can be dressed when the distance between first and second cutters for dressing wheel outer rim fillets is adjusted to an appropriate position and under the cooperation of the rotating wheel.Type: GrantFiled: November 2, 2017Date of Patent: December 3, 2019Assignee: CITIC DICASTAL CO., LTD.Inventors: Huiying Liu, Shan Ma, Yule Zhou, Junmeng Li, Xiaopeng Chen, Yongwang Zhao
-
Publication number: 20190321939Abstract: A wheel fixture is disclosed. A main shaft drives a first positioning pull rod on a chuck body to extend and contract in the radial direction via a tightening screw, a clamping jaw is at a position within the travel range of extension and contraction, a wheel is positioned and clamped by the fixture, airtight support blocks are pressed down by the wheel and flush with the support plane of the clamping jaw, at this time, airtight ejector rods press second O rings to prevent air from flowing out of the airtight detection position, a detection system of a machine tool detects a preset air pressure value which indicate that the wheel has been placed correctly, and if the wheel is not placed correctly on the fixture, the machine tool will alarm through the detected pressure feedback.Type: ApplicationFiled: December 18, 2018Publication date: October 24, 2019Inventors: Xiao LIU, Jiandong GUO, Xiaopeng CHEN
-
Publication number: 20190224800Abstract: A milling fixture for forged wheel includes a connecting plate installed on a milling machine table, a linear bearing installed on the connecting plate, a small diameter end of a positioning rod penetrates through a spring and a linear bearing, and a limiting screw installed on a side wall of the linear bearing and connected with the positioning rod. Under the coaction of the spring and an external force, the positioning rod is configured to move in the linear bearing. Bidirectional threaded rods are uniformly installed on a bottom plate, one end of each of the bidirectional threaded rods penetrate through pressure claws, the pressure claws are sandwiched between compression nuts and the connecting plate. The fixture can meet the requirement for milling a forged wheel, and at the same time, has the characteristics of a simple structure, is convenient to manufacture, provides stable performance and is low cost.Type: ApplicationFiled: August 2, 2018Publication date: July 25, 2019Inventors: Weidong LIU, Dan YAO, Xiaopeng CHEN, Xing WANG, Haiping CHANG
-
Publication number: 20190061101Abstract: Disclosed is a wheel outer rim fillet dressing device, including a rough wheel positioning system, a precision wheel positioning system, a wheel rotating system and a cutter dressing system. After a wheel is roughly positioned, an electric cylinder drives a moving plate to descend to an appropriate position, an adjusting cylinder drives a right sliding table to move right, a left sliding table moves synchronously with right sliding table under the action of a second gear rack, thus the distance between a precision positioning post on left sliding table and a precision positioning post on right sliding table is adjusted, and precision positioning posts contact vertical surface of cap seam allowance of wheel and hold the wheel tightly. The adjusting cylinder is restarted, and outer rim fillets can be dressed when the distance between two dressing cutters is adjusted to an appropriate position and under the cooperation of rotating wheel.Type: ApplicationFiled: November 2, 2017Publication date: February 28, 2019Inventors: Huiying Liu, Shan Ma, Yule Zhou, Junmeng Li, Xiaopeng Chen, Yongwang Zhao
-
Publication number: 20190061089Abstract: Disclosed is a wheel corner polishing device, being composed of a station switching system, a valve hole polishing system, a bolt hole polishing system and a rim and cap section synchronous polishing system. The device can meet the requirement of an automatic production line, and can automatically polish four positions including bolt hole corners, a valve hole corner, outer rim corners and cap section corners of a wheel via reasonable process layout, upper and lower stations and coordination of the systems, so that the minimum fillets of the four positions meet the requirements. The device has the characteristics of short cycle, high efficiency, skilful design, strong generality, easy manufacture and the like.Type: ApplicationFiled: November 2, 2017Publication date: February 28, 2019Inventors: Huiying Liu, Lijie Hu, Xiaopeng Chen, Zenglei He, Yongwang Zhao
-
Publication number: 20180369857Abstract: Disclosed is an aluminum alloy hub surface treatment process. The specific process flow comprises: providing an aluminum alloy hub blank, sanding, polishing, pre-treating, spraying electroplating silver paint, flash-drying, spraying celluloid paint, curing and discharging. The process not only has the mirror effect of electroplated products, but also has many advantages of simplicity, low cost, no heavy metal pollution and the like.Type: ApplicationFiled: August 10, 2017Publication date: December 27, 2018Applicant: CITIC Dicastai CO., LTDInventors: Guohua LIU, Xiaopeng CHEN, Guangcai CHEN, Le WANG, Qun ZHAO, Chong Li, Lei BAO
-
Patent number: 10160007Abstract: Disclosed is an aluminum alloy hub surface treatment process. The specific process flow comprises: providing an aluminum alloy hub blank, sanding, polishing, pre-treating, spraying electroplating silver paint, flash-drying, spraying celluloid paint, curing and discharging. The process not only has the mirror effect of electroplated products, but also has many advantages of simplicity, low cost, no heavy metal pollution and the like.Type: GrantFiled: August 10, 2017Date of Patent: December 25, 2018Assignee: CITIC DICASTAL CO., LTDInventors: Guohua Liu, Xiaopeng Chen, Guangcai Chen, Le Wang, Qun Zhao, Chong Li, Lei Bao
-
Patent number: 9461703Abstract: In some implementations, an apparatus includes an echo canceller that generates an echo interference compensation signal that compensates for an echo interference signal in a communication signal, a crosstalk canceller that generates a crosstalk interference compensation signal that compensates for a crosstalk interference signal in the communication signal, and a combiner that generates a combined interference compensation signal based on the echo interference compensation signal and the crosstalk interference compensation signal.Type: GrantFiled: April 22, 2014Date of Patent: October 4, 2016Assignee: Marvell International Ltd.Inventors: Xiaopeng Chen, Runsheng He
-
Patent number: 9407322Abstract: A system including a processor that receives a first digital signal corresponding to a first signal received by the system, and a second digital signal corresponding to a second signal transmitted by the system; generates a first control signal based on the first and second digital signals; and generates a first output signal based on the first control signal and a second analog signal corresponding to the second signal. A cancellation device generates a second control signal based on a first analog signal corresponding to the first signal, and a third control signal based on the first control signal and the first output signal; selects the second or third control signal when the system operates in a first or a second mode; and outputs a second output signal to cancel interference in the first signal according to the second analog signal and one of the second and third control signals.Type: GrantFiled: April 21, 2014Date of Patent: August 2, 2016Assignee: Marvell International LTD.Inventors: Xiaopeng Chen, Runsheng He
-
Patent number: 8989251Abstract: A compensator generating a compensation signal to compensate for nonlinear echo in an output of a current source. The nonlinear echo is a result of transitioning the current source between an ON state and an OFF state. The compensator includes driving, weighting, function, and compensating circuits. The driving circuit receives a first signal that is based on the output of the current source. The weighting circuit is configured to generate a second signal based on weighted versions of the first signal. The function circuit, based on the second signal, (i) updates each of multiple functions, and (ii) selects a first function. The driving circuit generates a driving signal based on the first function selected by the function circuit. The compensating circuit generates the compensation signal based on the driving signal to compensate for the nonlinear echo provided by the output of the current source.Type: GrantFiled: May 29, 2014Date of Patent: March 24, 2015Assignee: Marvell International Ltd.Inventors: Xiaopeng Chen, Runsheng He, Shuran Wei
-
Publication number: 20140269247Abstract: A compensator generating a compensation signal to compensate for nonlinear echo in an output of a current source. The nonlinear echo is a result of transitioning the current source between an ON state and an OFF state. The compensator includes driving, weighting, function, and compensating circuits. The driving circuit receives a first signal that is based on the output of the current source. The weighting circuit is configured to generate a second signal based on weighted versions of the first signal. The function circuit, based on the second signal, (i) updates each of multiple functions, and (ii) selects a first function. The driving circuit generates a driving signal based on the first function selected by the function circuit. The compensating circuit generates the compensation signal based on the driving signal to compensate for the nonlinear echo provided by the output of the current source.Type: ApplicationFiled: May 29, 2014Publication date: September 18, 2014Applicant: Marvell International LTD.Inventors: Xiaopeng Chen, Runsheng He, Shuran Wei
-
Patent number: 8787861Abstract: In some implementations, an apparatus includes an echo canceller that generates an echo interference compensation signal that compensates for an echo interference signal in a communication signal, a crosstalk canceller that generates a crosstalk interference compensation signal that compensates for a crosstalk interference signal in the communication signal, and a combiner that generates a combined interference compensation signal based on the echo interference compensation signal and the crosstalk interference compensation signal.Type: GrantFiled: September 7, 2012Date of Patent: July 22, 2014Assignee: Marvell International Ltd.Inventors: Xiaopeng Chen, Runsheng He
-
Patent number: 8743939Abstract: A nonlinear echo compensator comprises a mapping circuit that includes a weighting circuit that generates a weighted signal based on a current symbol and a prior symbol and a function generating circuit that selects one of N functions based on the weighted signal, where N is an integer greater than one. The mapping circuit generates a driving signal based on the selected one of the N functions and the weighted signal. A canceling circuit generates a nonlinear echo compensation signal based on the driving signal.Type: GrantFiled: June 26, 2008Date of Patent: June 3, 2014Assignee: Marvell International Ltd.Inventors: Xiaopeng Chen, Runsheng He, Shuran Wei
-
Patent number: 8712034Abstract: An adaptive analog echo/near-end crosstalk (NEXT) cancellation system includes a processor configured to receive a first digital signal corresponding to a first signal received by the system, receive a second digital signal corresponding to a second signal transmitted by the system, and generate a first error control signal based on each of the first digital signal and the second digital signal. A cancellation device is configured to generate a second error control signal based on a first analog signal corresponding to the first signal. The cancellation device selectively outputs the second error control signal or the first error control signal based on whether the system is operating in a first mode or a second mode, respectively. The cancellation device selectively outputs a cancellation signal according to one of the second error control signal and the first error control signal, and a second analog signal corresponding to the second signal.Type: GrantFiled: May 21, 2012Date of Patent: April 29, 2014Assignee: Marvell International Ltd.Inventors: Xiaopeng Chen, Runsheng He