Patents by Inventor Xi-An Xu
Xi-An Xu 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: 20240116101Abstract: The invention relates to the field of aluminum wheel casting molds, and more particularly relates to a closed-loop control method and system for a mold temperature in a wheel casting process. The control method includes: step 1, acquiring data, that is, acquiring a plurality of mold position temperatures, and cooling pipeline opening and closing signals in a target wheel casting process according to a fixed frequency; step 2, storing, based on acquired mold opening and closing signals of casting equipment, the acquired data in a database in the form of a unique ID according to a single wheel casting process; step 3, calculating new process parameters based on the acquired plurality of position temperatures and time; and step 4, integrating the calculated process parameters, and issuing the process parameters to a PLC of a casting equipment to perform new casting.Type: ApplicationFiled: May 16, 2023Publication date: April 11, 2024Inventors: Zuo Xu, Ji Wang, Shiwei Guo, Shiwen Xu, Shide Li, Xi Li, Yiming Li, Yangfan Li, Ning Wang, Guojiang Dong, Jiang Bi
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Patent number: 11955373Abstract: The present invention provides a method for preparing a gallium oxide semiconductor structure and a gallium oxide semiconductor structure obtained thereby.Type: GrantFiled: September 29, 2019Date of Patent: April 9, 2024Assignee: Shanghai Institute of Microsystem And Information Technology, Chinese Academy of SciencesInventors: Xin Ou, Tiangui You, Wenhui Xu, Pengcheng Zheng, Kai Huang, Xi Wang
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Publication number: 20240113634Abstract: A bidirectional transmission circuit for a universal signal, comprising an intrinsically safe energy limiting module, a first signal coupling module, an isolation transformer module, a second signal coupling module and a control module; the first signal coupling module adjusts a first direct current signal of a universal signal to a first alternating current signal, the isolation transformer module transmits the first alternating current signal to the second signal coupling module in an isolation manner, and the second signal coupling module adjusts the first alternating current signal to a second direct current signal to a universal signal receiving terminal; the second signal coupling module further adjusts a third direct current signal of a control signal to a second alternating current signal, and the first signal coupling module further adjusts the second alternating current signal to a fourth direct current signal to a control signal receiving terminal.Type: ApplicationFiled: March 15, 2021Publication date: April 4, 2024Inventors: Min XU, Gang DU, Fan HE, Xi FANG
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Publication number: 20240091786Abstract: The present invention relates to the field of garbage landfill. The present invention discloses a classified landfill device and method for garbage landfills, and the problem solved by the present invention is that the device proposed in the above background absorbs metals in the garbage using a magnet, but when the surface of the magnet has absorbed a large amount of metal, the device needs to be closed to treat the metal adsorbed on the surface of the magnet. The present invention comprises a screening mechanism, crushing mechanism and discharge mechanism. According to the classified landfill device and method for garbage landfill, the second crushing knife is set at an angle to divert the falling garbage to the front and rear sides, so that the two first crushing knives and the second crushing knife cooperate to crush the garbage respectively to avoid excessive accumulation of garbage.Type: ApplicationFiled: September 20, 2023Publication date: March 21, 2024Inventors: Guangli XIAO, Xi HAN, Minghui QI, Qiang XU, Xinyue HAO, Zhen LONG
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Publication number: 20240084393Abstract: A molecular marker for identifying DNA methylation and thereby detecting the benignity or malignancy of a lung nodule is disclosed. The molecular marker for identifying DNA methylation includes the sequence of, or the completely complementary sequence to, SEQ ID NO:6 or a continuous fragment of at least 55% of the full length of the sequence of, or the completely complementary sequence to, SEQ ID NO:6. Also disclosed are applications of the molecular marker for identifying DNA methylation, including a corresponding detection reagent kit and a corresponding detection method. The disclosed molecular marker combinations for identifying DNA methylation are highly correlated to lung cancer, are highly sensitive and specific when used to detect the benignity or malignancy of a lung nodule, and can increase the detection rate of malignant lung nodules while lowering the false positive rate.Type: ApplicationFiled: June 17, 2023Publication date: March 14, 2024Inventors: Zhujia YE, Hao YANG, Yanying LIU, Jinsheng TAO, Xi LUO, Jiehan XU, Zhiwei CHEN, Jianbing FAN
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Publication number: 20240080163Abstract: This application provides a reference signal transmission method and transmission apparatus. The transmission method includes: obtaining, by a network device, reference information of a terminal device, where the reference information includes at least one of an identifier of the terminal device and scheduling information of the terminal device; determining, by the network device, a transmission parameter of a phase tracking reference signal (PTRS) of the terminal device based on the reference information, where the transmission parameter includes at least one of a sequence of the PTRS and a frequency domain position of the PTRS; and transmitting, by the network device, the PTRS with the terminal device based on the transmission parameter. According to the reference signal transmission method and transmission apparatus provided in embodiments of this application, interference to the PTRS can be randomized.Type: ApplicationFiled: November 8, 2023Publication date: March 7, 2024Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xi Zhang, Minghui Xu, Weimin Xiao
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Publication number: 20220333215Abstract: This invention relates generally to the field of virus detection. In particular, the invention provides kits, probes, primers, kits and methods for amplifying and detecting sequences selected from the group comprising COIN-CoV2-241, COIN-CoV2-3037, COIN-CoV2-14408, COIN-CoV2-28144, COIN-CoV2-23403, COIN-CoV2-28881, COIN-CoV2-28882, COIN-CoV2-28883, COIN-CoV2-17747, COIN-IFA-238 and COIN-IFB-002 in samples from co-infection of SARS-CoV-2, influenza A virus (IFA) and/or influenza B virus (IFB). The clinical and other uses of the present kits, probes, primers, kits and methods are also contemplated.Type: ApplicationFiled: March 31, 2021Publication date: October 20, 2022Applicant: THE HOPES INSTITUTEInventors: Yang Xu, Xi Xu
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Patent number: 10531134Abstract: This document describes systems, methods, and apparatus for determining a time budget for transcoding a video. By calculating and/or monitoring the time budget in accordance with the teachings hereof, a transcoder can assess the effect its transcode duration will have on a client buffer. As a result the transcoder may adjust its processing of the video. The teachings hereof are applicable, without limitation, to the transcoding of live video.Type: GrantFiled: November 10, 2017Date of Patent: January 7, 2020Assignee: Akamai Technologies, Inc.Inventors: Thomas George, Xi Xu, Kourosh Soroushian, Pankaj Chaudhari
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Patent number: 10425101Abstract: A Biphase Mark Coding (BMC) transceiver is provided. In the BMC transceiver, an operational amplifier operating in a time division multiplexing manner is used. The operational amplifier is configured as a unity gain buffer, and it is determined whether the BMC transceiver operates as a transmitter or a receiver by selecting different input switches and output switches. In a transmitting mode, a bias current of an input differential pair transistor of the operational amplifier is changed, to change a slew rate, so as to obtain an output waveform with adjustable rising/falling edges of the transmitter.Type: GrantFiled: July 31, 2018Date of Patent: September 24, 2019Assignee: LONTIUM SEMICONDUCTOR CORPORATIONInventors: Cheng Tao, Xi Xu, Xiangyu Ji, Jiaxi Fu
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Patent number: 10409752Abstract: A bidirectional signal conditioning chip for a USB Type-C cable and a USB Type-C cable are provided. The chip includes a memory, a processor and a transfer driver. The transfer driver is configured to regenerate and transmit a high speed signal; the memory is configured to store a program code; the processor is configured to call the program code, and perform the following operations when the program code is executed: determining a data transmission direction and a type supported by transmitted data of the USB Type-C cable; configuring on-off states of buffers in the transfer driver based on the data transmission direction and the supported type, so that a data output direction of the transfer driver is consistent with the data transmission direction.Type: GrantFiled: October 13, 2017Date of Patent: September 10, 2019Assignee: LONTIUM SEMICONDUCTOR CORPORATIONInventors: Cheng Tao, Yu Chen, Xi Xu, Xin Zhu
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Patent number: 10404271Abstract: A biphase mark coding transmitter is provided. In the biphase mark coding transmitter, a delay control unit performs equal-interval delay processing on data transmitted by a data coding and protocol processing unit. Then, the current-steering digital-to-analog converter is controlled to charge or discharge a resistance-capacitance circuit to obtain an accurately-controlled conversion time. Data with the controlled conversion time is driven to a CC by a unity-gain buffer to generate an output waveform. The technical solution solves the technical problem of a mutual influence between power source systems of a traditional BMC transmitter which is a digital module and a traditional BMC receiver which is an analog module, and the technical problem of a large noise of a power switch and large consumption of chip area and power which are resulted from digital buffers driven by equal-interval data or clocks in a traditional BMC transmitter.Type: GrantFiled: June 20, 2018Date of Patent: September 3, 2019Assignee: LONTIUM SEMICONDUCTOR CORPORATIONInventors: Cheng Tao, Xi Xu, Xiangyu Ji, Jiaxi Fu
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Publication number: 20190149859Abstract: This document describes systems, methods, and apparatus for determining a time budget for transcoding a video. By calculating and/or monitoring the time budget in accordance with the teachings hereof, a transcoder can assess the effect its transcode duration will have on a client buffer. As a result the transcoder may adjust its processing of the video. The teachings hereof are applicable, without limitation, to the transcoding of live video.Type: ApplicationFiled: November 10, 2017Publication date: May 16, 2019Applicant: Akamai Technologies, Inc.Inventors: Thomas George, Xi Xu, Kourosh Soroushian, Pankaj Chaudhari
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Publication number: 20190073329Abstract: A bidirectional signal conditioning chip for a USB Type-C cable and a USB Type-C cable are provided. The chip includes a memory, a processor and a transfer driver. The transfer driver is configured to regenerate and transmit a high speed signal; the memory is configured to store a program code; the processor is configured to call the program code, and perform the following operations when the program code is executed: determining a data transmission direction and a type supported by transmitted data of the USB Type-C cable; configuring on-off states of buffers in the transfer driver based on the data transmission direction and the supported type, so that a data output direction of the transfer driver is consistent with the data transmission direction.Type: ApplicationFiled: October 13, 2017Publication date: March 7, 2019Inventors: Cheng TAO, Yu CHEN, Xi XU, Xin ZHU
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Patent number: 10193552Abstract: The termination resistor calibration circuit and a control method thereof are provided. The resistance of the termination resistor of the CML transmitter is directly calibrated, so that the error caused by duplicating the resistor can be avoided, which improves the calibration accuracy. In addition, no duplicated resistor and constant current source is required, which reduces the area occupied by the circuit. Further, the absolute current and the relative current are obtained from the bandgap module and thus have high accuracy. The output signal control module, the constant current source, and the termination resistors of the CML transmitter can be used for transmitting signals after the resistance calibration is finished, which improves the utilization of the circuit module.Type: GrantFiled: June 25, 2018Date of Patent: January 29, 2019Assignee: LONTIUM SEMICONDUCTOR CORPORATIONInventors: Xiangyu Ji, Cheng Tao, Yu Chen, Xi Xu, Jiaxi Fu
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Patent number: 9800234Abstract: A clock and data recovery circuit and a phase interpolator therefor are provided. The clock and data recovery circuit includes a phase-locked loop, a control unit and the phase interpolator, a receiving circuit, a serial-to-parallel conversion circuit. The phase interpolator is connected with the control unit of the clock and data recovery circuit, and the phase interpolator includes: an encoding circuit, two multiplexers, a clock mixer, and two differential to single-ended amplifiers. The control unit is configured to further control the encoding circuit to change a delay position for a clock outputted by the phase interpolator in a case that the data sampled in the current clock position is not the optimal sampled data, to lead or lag the clock, thereby forming a stable state in which the clock follows the data dynamically.Type: GrantFiled: July 27, 2016Date of Patent: October 24, 2017Assignee: LONTIUM SEMICONDUCTOR CORPORATIONInventors: Lianliang Tai, Hongfeng Xia, Xi Xu, Diansheng Ren, Cheng Tao, Feng Chen
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Publication number: 20170187361Abstract: A clock and data recovery circuit and a phase interpolator therefor are provided. The clock and data recovery circuit includes a phase-locked loop, a control unit and the phase interpolator, a receiving circuit, a serial-to-parallel conversion circuit. The phase interpolator is connected with the control unit of the clock and data recovery circuit, and the phase interpolator includes: an encoding circuit, two multiplexers, a clock mixer, and two differential to single-ended amplifiers. The control unit is configured to further control the encoding circuit to change a delay position for a clock outputted by the phase interpolator in a case that the data sampled in the current clock position is not the optimal sampled data, to lead or lag the clock, thereby forming a stable state in which the clock follows the data dynamically.Type: ApplicationFiled: July 27, 2016Publication date: June 29, 2017Applicant: LONTIUM SEMICONDUCTOR CORPORATIONInventors: Lianliang TAI, Hongfeng XIA, Xi XU, Diansheng REN, Cheng TAO, Feng CHEN
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Patent number: 9648351Abstract: Error control in multi-stream visual dynamic range (VDR) codecs is described, including for a case of a layer-decomposed (non-backward compatible) video codecs. Error control can be provided by concealing lost and/or corrupted data in data frames of a decoded VDR bitstream prior to rendering a corresponding VDR image. Various algorithms and methods for concealing lost and/or corrupted data are provided.Type: GrantFiled: October 15, 2014Date of Patent: May 9, 2017Assignee: Dolby Laboratories Licensing CorporationInventors: Guan-Ming Su, Xi Xu, Sheng Qu
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Publication number: 20160303069Abstract: The present invention provides compound extracted from Garcinia species and the use of said compound in preventing and treating cancer.Type: ApplicationFiled: April 15, 2016Publication date: October 20, 2016Inventors: Hong-xi XU, Yuan-zhi LAO, Zhi-jie DING, Hong ZHANG, Kai-xian CHEN, Hong-sheng TAN, Zhao-xiang BIAN, Cheng-yuan LIN, Shi-lin CHEN, Da-jian YANG, Ai-ping LU, Albert Sun Chi CHAN
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Patent number: D893858Type: GrantFiled: March 18, 2019Date of Patent: August 25, 2020Assignee: SHENZHEN LAIYING TECHNOLOGY CO., LTD.Inventor: Shao-Xi Xu
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Patent number: D1020786Type: GrantFiled: April 14, 2023Date of Patent: April 2, 2024Assignee: GOOGLE LLCInventors: Ramachandran Ramaswamy, Daniel Sim, Jason Gouliard, Lilu Xu, Umesh Unnikrishan, Amit Chandak, Francois Toit Spies, Xi Liu, Jen-Feng Chang, Jamey Lorine Robnett-Conover, Sharon Lee