Patents by Inventor Xu Liang
Xu Liang 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: 12320719Abstract: A sensing device includes a body having a first chamber, a second chamber, and a liquid path which are filled with a liquid, the liquid path communicates with the second chamber, a pressure difference detection chip installed in the first chamber, and a pressure detection chip installed in the first chamber. The pressure difference detection chip seals an opening of the liquid path disposed on a bottom surface of the first chamber. The pressure difference detection chip detects a liquid pressure difference between the first chamber and the second chamber. The pressure detection chip detects a liquid pressure in the first chamber.Type: GrantFiled: October 11, 2022Date of Patent: June 3, 2025Assignees: TE Connectivity Solutions GmbH, Measurement Specialties (China) Ltd.Inventors: Tinghui (Felix) Fu, Vincent Wong, Xu Liang, Long (Allen) Wang
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Patent number: 12199680Abstract: The photonic integrated chip includes a laser light source configured to generate an optical carrier, a first optical splitter configured to split the optical carrier into a first optical carrier and a second optical carrier, an optical local oscillation generation unit, and a photonic frequency conversion unit. The first optical splitter sends the first optical carrier and the second optical carrier to the photonic frequency conversion unit and the optical local oscillation generation unit. The optical local oscillation generation unit generates an optical local oscillation signal and send the optical local oscillation signal to the photonic frequency conversion unit. The photonic frequency conversion unit converts a first intermediate frequency signal into a first radio frequency signal through photonic up-conversion. The photonic frequency conversion unit converts a second radio frequency signal into a second intermediate frequency signal through photonic down-conversion.Type: GrantFiled: March 17, 2023Date of Patent: January 14, 2025Assignee: CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION NO 44 RESEARCH INSTITUTEInventors: Yu Zhang, Xu Liang, Jing Xu
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Patent number: 12188794Abstract: Disclosed are a grating displacement measurement device and a grating displacement measurement method using a double-layer floating reading head, a medium, and an apparatus. A first measurement grating group is arranged on two first side edges of a substrate working surface, and a second measurement grating group is symmetrically arranged on both sides of a first reference line and close to a light-through member. A reading component is provided between a first measurement grating and a second measurement grating arranged on the same side, and each reading component is used to collect a first position information of the first measurement grating and a second position information of the second measurement grating. In the technical solutions, by using multi-channel position information output by two reading components in combination with a displacement solution algorithm.Type: GrantFiled: September 20, 2024Date of Patent: January 7, 2025Assignee: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of SciencesInventors: Wenhao Li, Wenyuan Zhou, Zhaowu Liu, Shan Jiang, Wei Wang, Yujia Sun, Lin Liu, Xu Liang, Siyu Jin
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Patent number: 12123917Abstract: A method for determining a remaining charging time of a battery. The method includes obtaining a first charging current and a second charging current. The first charging current is a present charging current of the battery, and the second charging current is a charging current of the battery when the battery is fully charged. The method further includes determining an average charging current value based on the first charging current and the second charging current, and determining the remaining charging time based on the average charging current value.Type: GrantFiled: November 22, 2022Date of Patent: October 22, 2024Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITEDInventors: Haijiang Wang, Shuting Sun, Xu Liang
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Publication number: 20240220236Abstract: A method for updating encrypted firmware is performed by a terminal device. The method includes the following steps: receiving an encrypted differential upgrade package or a differential upgrade package through a communication channel, wherein when the terminal device receives the encrypted differential upgrade package, the terminal device decrypts the encrypted differential upgrade package to obtain the differential upgrade package; decrypting an encrypted to-be-upgrade firmware of the terminal device to obtain a decrypted to-be-upgraded firmware; generating a decrypted target firmware according to the decrypted to-be-upgraded firmware and the differential upgrade package; and encrypting the decrypted target firmware to generate an encrypted target firmware, and storing the encrypted target firmware in the terminal device.Type: ApplicationFiled: June 15, 2023Publication date: July 4, 2024Inventors: JUN-MEI XU, XIAO-DAN XU, XU-LIANG SHEN
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Publication number: 20240201980Abstract: A firmware update method having a self-restoration mechanism is performed by a terminal device. The firmware update method includes the following steps: downloading a differential upgrade package and a differential restoration package through a communication network channel; performing an upgrade operation to current firmware of the terminal device with the differential upgrade package to upgrade the current firmware to a target firmware, wherein the current firmware is changed into incompletely-upgraded firmware after the upgrade operation starts and before the upgrade operation finishes successfully; and verifying whether the upgrade operation fails, and when the upgrade operation fails, performing a restoration operation to the incompletely-upgraded firmware with the differential restoration package to restore the incompletely-upgraded firmware to the current firmware.Type: ApplicationFiled: May 17, 2023Publication date: June 20, 2024Inventors: JUN-MEI XU, XIAO-DAN XU, XU-LIANG SHEN
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Patent number: 11984894Abstract: A system and a method for generating an arbitrary waveform of a microwave photon based on optical frequency tuning are provided. The system includes an optical frequency comb, a first optical distribution unit, a first photoelectric conversion unit, a frequency-shift drive circuit, and an optical frequency doubling/dividing unit, an optical frequency-shift combining optical circuit, a second photoelectric conversion unit, and a second electrical processing circuit. The optical frequency comb is used as the frequency source, with the features of high stability and low phase noise of the optical frequency comb, the arbitrary waveforms of microwave photons can be generated through optical frequency tuning control; the performance of the optical frequency comb is three orders of magnitude or more higher than that of the common microwave frequency sources, therefore, the waveforms with high-frequency, ultra-wideband, low phase noise, and high stability can be generated.Type: GrantFiled: January 3, 2023Date of Patent: May 14, 2024Assignee: CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION NO 44 RESEARCH INSTITUTEInventors: Hao Zhang, Yongchuan Xiao, Caibin Yu, Xu Liang, Lijun Sun
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Publication number: 20240120907Abstract: A system and a method for generating an arbitrary waveform of a microwave photon based on optical frequency tuning are provided. The system includes an optical frequency comb, a first optical distribution unit, a first photoelectric conversion unit, a frequency-shift drive circuit, and an optical frequency doubling/dividing unit, an optical frequency-shift combining optical circuit, a second photoelectric conversion unit, and a second electrical processing circuit. The optical frequency comb is used as the frequency source, with the features of high stability and low phase noise of the optical frequency comb, the arbitrary waveforms of microwave photons can be generated through optical frequency tuning control; the performance of the optical frequency comb is three orders of magnitude or more higher than that of the common microwave frequency sources, therefore, the waveforms with high-frequency, ultra-wideband, low phase noise, and high stability can be generated.Type: ApplicationFiled: January 3, 2023Publication date: April 11, 2024Inventors: HAO ZHANG, YONGCHUAN XIAO, CAIBIN YU, XU LIANG, LIJUN SUN
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Patent number: 11936433Abstract: The present disclosure relates to the field of microwave and optoelectronic technologies, and in particular to an integrated microwave photon transceiving front-end for a phased array system, including: a ceramic substrate, on which a control integrated circuit, a silicon-based photonic integrated chip, a first amplifying chipset, a second amplifying chipset, and a microwave switch chipset are carried. The control integrated circuit is configured to control the silicon-based photonic integrated chip and the microwave switch chipset by means of an input control signal. The silicon-based photonic integrated chip is connected at one end with an input/output optical fiber, and at the other end with the first amplifying chipset and the second amplifying chipset. The two amplifying chipsets are connected to the microwave switch chipset respectively, and the microwave switch chipset is further connected with a phased array antenna.Type: GrantFiled: April 22, 2020Date of Patent: March 19, 2024Assignee: CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION NO. 44 RESEARCH INSTITUTEInventors: Yu Zhang, Xu Liang, Jing Xu, Lijun Sun
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Publication number: 20240031030Abstract: The photonic integrated chip includes a laser light source configured to generate an optical carrier, a first optical splitter configured to split the optical carrier into a first optical carrier and a second optical carrier, an optical local oscillation generation unit, and a photonic frequency conversion unit. The first optical splitter sends the first optical carrier and the second optical carrier to the photonic frequency conversion unit and the optical local oscillation generation unit. The optical local oscillation generation unit generates an optical local oscillation signal and send the optical local oscillation signal to the photonic frequency conversion unit. The photonic frequency conversion unit converts a first intermediate frequency signal into a first radio frequency signal through photonic up-conversion. The photonic frequency conversion unit converts a second radio frequency signal into a second intermediate frequency signal through photonic down-conversion.Type: ApplicationFiled: March 17, 2023Publication date: January 25, 2024Inventors: YU ZHANG, XU LIANG, JING XU
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Publication number: 20240019330Abstract: A pressure sensor includes a shell having an installation chamber and an inner cavity for accommodating a fluid, a pressure detection chip installed in the installation chamber of the shell for detecting a fluid pressure in the inner cavity, a circuit board installed in the installation chamber of the shell and electrically connected to the pressure detection chip, a cover installed in an opening of the installation chamber of the shell to seal the opening of the installation chamber, and a terminal passing through the cover and fixed to the cover. The circuit board has a conductive hole and the pressure sensor has an elastic conductive member arranged in the conductive hole. The elastic conductive member is in electrical contact with the terminal to electrically connect the terminal to the conductive hole.Type: ApplicationFiled: July 14, 2023Publication date: January 18, 2024Applicant: Measurement Specialties (China) Ltd.Inventors: Tinghui (Felix) Fu, Xu Liang, Long (Allen) Wang
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Publication number: 20230366765Abstract: A pressure sensor includes a housing, a pressure detection chip, a circuit board and a terminal assembly. The housing defines an installation chamber and an inner cavity for accommodating fluid. The pressure detection chip is fixed within the installation chamber of the housing and is adapted to detect fluid pressure in the inner cavity. The circuit board is fixed within the installation chamber of the housing and electrically connects to the pressure detection chip. The terminal assembly includes a cover rotatably installed in an opening of the installation chamber of the housing and an elastic output terminal that passes through and is fixed to the cover.Type: ApplicationFiled: May 10, 2023Publication date: November 16, 2023Applicant: Measurement Specialties (China) Ltd.Inventors: Tinghui (Felix) Fu, Xu Liang, Long (Allen) Wang
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Patent number: 11774309Abstract: An implantable pressure sensor is disclosed that has a small diameter and eliminates any dead zone in the flow of the pressure transmission medium, and is thus particularly adapted for implantation. In one embodiment the pressure sensor comprises a body including a cavity for receiving a liquid, and a planar mounting surface extending in an axial direction of the body. A diaphragm is attached to the pressure sensor body for transmitting an external medium pressure to the liquid in the cavity. A pressure detection chip is mounted on the mounting surface of the pressure sensor body for detecting a pressure of the liquid within the cavity, and a circuit hoard is mounted on the planar mounting surface of the body and is electrically connected to the pressure detection chip resulting in a device of smaller diameter particularly suited for implantation.Type: GrantFiled: August 3, 2021Date of Patent: October 3, 2023Assignee: Measurement Specialties (China) Ltd.Inventors: Yaxiang Zhang, Tinghui Felix Fu, Xu Liang
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Publication number: 20230204672Abstract: A method for determining a remaining charging time of a battery. The method includes obtaining a first charging current and a second charging current. The first charging current is a present charging current of the battery, and the second charging current is a charging current of the battery when the battery is fully charged. The method further includes determining an average charging current value based on the first charging current and the second charging current, and determining the remaining charging time based on the average charging current value.Type: ApplicationFiled: November 22, 2022Publication date: June 29, 2023Inventors: Haijiang WANG, Shuting SUN, Xu LIANG
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Publication number: 20230179393Abstract: A node synchronization method, includes: receiving a synchronization message by a first synchronization node in a network; determining whether to update a first local time of the first synchronization node according to the synchronization message by the first synchronization node; updating the first local time according to a synchronization time of the synchronization message by the first synchronization node when determining to update the first local time; and updating the synchronization time of the received synchronization message with the current first local time and forwarding the updated synchronization message by the first synchronization node.Type: ApplicationFiled: June 17, 2022Publication date: June 8, 2023Applicant: REALTEK SEMICONDUCTOR CORP.Inventors: Xiao-Dan Xu, Li-Bin Yang, Ping Yan, Jun-Mei Xu, Xu-Liang Shen, Si-Yuan Wang
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Publication number: 20230135371Abstract: A sealing pin includes a body part and an end part connected to the body part. The body part is insertable into a liquid filling path of a pressure sensor. The body part has a groove on an outer surface. The end part seals a liquid filling port of the liquid filling path. When the sealing pin is inserted into the liquid filling path, an external media pressure applied to a diaphragm of the pressure sensor is transmitted to a pressure detection chip of the pressure sensor through a liquid in the groove.Type: ApplicationFiled: November 3, 2022Publication date: May 4, 2023Applicant: Measurement Specialties (China) Ltd.Inventors: Tinghui (Felix) Fu, Xu Liang, Long (Allen) Wang
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Publication number: 20230115850Abstract: A sensing device includes a body having a first chamber, a second chamber, and a liquid path which are filled with a liquid, the liquid path communicates with the second chamber, a pressure difference detection chip installed in the first chamber, and a pressure detection chip installed in the first chamber. The pressure difference detection chip seals an opening of the liquid path disposed on a bottom surface of the first chamber. The pressure difference detection chip detects a liquid pressure difference between the first chamber and the second chamber. The pressure detection chip detects a liquid pressure in the first chamber.Type: ApplicationFiled: October 11, 2022Publication date: April 13, 2023Applicants: Measurement Specialties (China) Ltd., Measurement Specialties, Inc.Inventors: Tinghui (Felix) Fu, Vincent Wong, Xu Liang, Long (Allen) Wang
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Publication number: 20230008212Abstract: The present disclosure relates to the field of microwave and optoelectronic technologies, and in particular to an integrated microwave photon transceiving front-end for a phased array system, including: a ceramic substrate, on which a control integrated circuit, a silicon-based photonic integrated chip, a first amplifying chipset, a second amplifying chipset, and a microwave switch chipset are carried. The control integrated circuit is configured to control the silicon-based photonic integrated chip and the microwave switch chipset by means of an input control signal. The silicon-based photonic integrated chip is connected at one end with an input/output optical fiber, and at the other end with the first amplifying chipset and the second amplifying chipset. The two amplifying chipsets are connected to the microwave switch chipset respectively, and the microwave switch chipset is further connected with a phased array antenna.Type: ApplicationFiled: April 22, 2020Publication date: January 12, 2023Applicant: CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION NO. 44 RESEARCH INSTITUTEInventors: Yu ZHANG, Xu LIANG, Jing XU, Lijun SUN
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Patent number: 11536623Abstract: A digital pressure sensor includes a substrate, a pressure sensing structure configured for measuring a pressure of an object to be measured, a signal processing chip configured for receiving a sensing signal of the pressure sensing structure, and a rubber cover having an opening through which the pressure is sensed. The pressure sensing structure and the signal processing chip are mounted on the substrate. The signal processing chip has an analog-digital conversion module that converts the sensing signal output by the pressure sensing structure into a digital signal and outputs the digital signal. The signal processing chip is electrically connected to the substrate. The substrate and the rubber cover are connected to each other and form a mounting cavity for holding the pressure sensing structure and the signal processing chip.Type: GrantFiled: October 30, 2020Date of Patent: December 27, 2022Assignees: Measurement Specialties (China) Ltd., Measurement Specialties, Inc.Inventors: Yang Zhai, Xu Liang, Jianjie Yuan, John Valentini, Bala Kashi
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Publication number: 20220042870Abstract: A pressure sensor comprises a body including a cavity for receiving a liquid, and a planar mounting surface extending in an axial direction of the body. A diaphragm is attached to the body for transmitting an external medium pressure to the liquid in the cavity. A pressure detection chip is mounted on the mounting surface of the body for detecting a pressure of the liquid within the cavity, and a circuit board is mounted on the mounting surface of the body and is electrically connected to the pressure detection chip.Type: ApplicationFiled: August 3, 2021Publication date: February 10, 2022Applicant: Measurement Specialties (China) Ltd.Inventors: Yaxiang Zhang, Tinghui (Felix) Fu, Xu Liang