Patents by Inventor Feng PEI
Feng PEI 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: 20240142583Abstract: This application relates to a galvanometer-based laser synchronization controlling method, calibration method and apparatus, and a LiDAR. The galvanometer-based laser synchronization controlling method includes obtaining a fast-axis feedback signal when a galvanometer scans; obtaining a first phase difference between a fast-axis drive signal and the fast-axis feedback signal and obtaining a second phase difference between an emission period of a laser beam and the fast-axis drive signal; and setting a phase for the fast-axis drive signal based on the first phase difference and the second phase difference.Type: ApplicationFiled: October 9, 2023Publication date: May 2, 2024Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.Inventors: Hankui ZHANG, Yipeng LI, Peng WANG, Guanxing PEI, Xiao SHEN, Feng ZHANG
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Publication number: 20240137110Abstract: A method for reducing frequency interference, and a communication satellite system. The method includes configuring the communication satellite system, determining a first range of areas in which a spatial isolation angle between the LEO satellite and the GEO satellite does not satisfy a minimum spatial isolation angle within service areas of the movable spot beams, enabling the movable spot beams to not enter the areas, and when the movable spot beams of the transmitting and receiving user antennas of multiple adjacent LEO satellites provide services to a same area, calculating a spatial isolation angles between the movable spot beams of the transmitting and receiving user antennas of any two adjacent LEO satellites, and in response to the spatial isolation angle not satisfying the minimum spatial isolation angle, assigning different sub-frequencies to the movable spot beams that do not satisfy the minimum spatial isolation angle.Type: ApplicationFiled: September 29, 2021Publication date: April 25, 2024Inventors: Fenglong Hou, Feng Li, Xiaoxiong Lin, Yu Qi, Shengwei Pei, Dong Chen, Jie Xing, Hua Huang, Xingang Li, Jincheng Tong, Hengchao Sun, Shaoran Liu, Zeyu Bao
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Patent number: 11949681Abstract: Methods and systems are provided for improving user authentication and access control by a network file system service in a multi-tenant public cloud environment by receiving a request for a connection to a file system from a file system client (client), sending an identification request for identification authentication of the client to a control system, receiving a response from the control system, establishing the connection to the file system upon determining that the connection to the file system is allowed based on cloud tenant information associated with the client, receiving an attempt to access the file system from the client by a sub-user, authenticating the sub-user based on the cloud tenant information, issuing a security token including a globally unique sub-user identifier of the sub-user, and using the security token to determine access rights of the sub-user to the file system for a subsequent request.Type: GrantFiled: October 10, 2018Date of Patent: April 2, 2024Assignee: Alibaba Group Holding LimitedInventors: Qingda Lu, Junpu Chen, Qinghua Ye, Lei Wang, Zhiyong Lin, Liping Bao, Jiesheng Wu, Li Xu, Xiaohui Pei, Feng Zhang, Leilei Tian
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Patent number: 11915977Abstract: A stacked integrated circuit (IC) device and a method are disclosed. The stacked IC device includes a first semiconductor element. The first substrate includes a dielectric block in the first substrate; and a plurality of first conductive features formed in first inter-metal dielectric layers over the first substrate. The stacked IC device also includes a second semiconductor element bonded on the first semiconductor element. The second semiconductor element includes a second substrate and a plurality of second conductive features formed in second inter-metal dielectric layers over the second substrate. The stacked IC device also includes a conductive deep-interconnection-plug coupled between the first conductive features and the second conductive features. The conductive deep-interconnection-plug is isolated by dielectric block, the first inter-metal-dielectric layers and the second inter-metal-dielectric layers.Type: GrantFiled: April 12, 2021Date of Patent: February 27, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Shu-Ting Tsai, Jeng-Shyan Lin, Dun-Nian Yaung, Jen-Cheng Liu, Feng-Chi Hung, Chih-Hui Huang, Sheng-Chau Chen, Shih Pei Chou, Chia-Chieh Lin
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Publication number: 20240010567Abstract: A class of multiphase rubidium titanate functional ceramic materials is provided in this disclosure, the composition of which comprises phases of rubidium n-titanates with chemical formula of Rb2TinO2n+1, that of titanium dioxide with chemical formula of TiO2, and a small amount of optional dopant for the purpose of further improving or adjusting performance of the materials. The said materials are obtained by mixing the sources of rubidium, titanium and optional dopant to get a highly active fine-powdery precursor, and then by making heat-treatment in air of the precursor. The said materials possess unusual electrical and electrochemical properties, such as colossal permittivity up to the order of 109 at room temperature accompanied by relatively low dielectric loss, excellent insulativity accompanied by high ionic conductivity up to 10?3 S/cm, have a broad application prospect in the fields like rechargeable high energy density storage devices, semiconductor devices and catalytic purification.Type: ApplicationFiled: November 15, 2021Publication date: January 11, 2024Inventors: Xiangdong HUANG, Feng PEI, Sirui HUANG, Zhipeng HU, Zhuo WANG
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Patent number: 11505187Abstract: The present disclosure relates to an unmanned lane keeping method and device, a computer device, and a storage medium. The method includes that: a vehicle road image collected by a data collector of the vehicle is received; the vehicle road image is transmitted to a preset DNN model of the vehicle for processing to obtain a steering wheel angle corresponding to the vehicle road image, wherein the DNN model of the vehicle is established by deep learning, and is used for characterizing a correspondence between the vehicle road image and the steering wheel angle; and the vehicle is controlled to keep driving in a corresponding lane according to the steering wheel angle.Type: GrantFiled: October 22, 2018Date of Patent: November 22, 2022Assignee: GUANGZHOU AUTOMOBILE GROUP CO., LTD.Inventors: Hanfei Shi, Qiaojun He, Wei Xu, Hongshan Zha, Feng Pei, Jun Gu
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Publication number: 20210339743Abstract: The present disclosure relates to an unmanned lane keeping method and device, a computer device, and a storage medium. The method includes that: a vehicle road image collected by a data collector of the vehicle is received; the vehicle road image is transmitted to a preset DNN model of the vehicle for processing to obtain a steering wheel angle corresponding to the vehicle road image, wherein the DNN model of the vehicle is established by deep learning, and is used for characterizing a correspondence between the vehicle road image and the steering wheel angle; and the vehicle is controlled to keep driving in a corresponding lane according to the steering wheel angle.Type: ApplicationFiled: October 22, 2018Publication date: November 4, 2021Inventors: Hanfei SHI, Qiaojun HE, Wei XU, Hongshan ZHA, Feng PEI, Jun GU
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Publication number: 20210080267Abstract: Provided are a path planning method and device for an unmanned vehicle, road segments of an origin and destination of a path are acquired; path search is performed to generate an initial path according to an exit endpoint of the road segment where the origin is located, an entrance endpoint of the road segment where the destination is located, and entrance endpoints and exit endpoints of the road segments for connecting the exit endpoint of the road, segment where the origin is located to the entrance endpoint of the road segment where the destination is located; an exit endpoint of a previous road section of the connecting passages in a passable direction is updated according to entrance endpoints of the connecting passages in the initial path; and a final planed path is generated according to different endpoints in the updated initial path.Type: ApplicationFiled: October 19, 2018Publication date: March 18, 2021Applicant: Guangzhou Automobile Group Co., Ltd.Inventors: Xinhua GAN, Hongshan ZHA, Ted S HUANG, Wei XU, Feng PEI, Caijing XIU
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Patent number: 7905791Abstract: Various embodiments of the invention include a motor system for driving a swing and controlling the speed and/or amplitude of the swing. In one embodiment, the motor system includes a DC motor, a swing velocity sensor system, and a swing velocity control circuit. The DC motor drives the swing through at least one fill swing cycle, and then the motor is allowed to free-wheel for at least a half swing cycle. During the free-wheeling half cycle, the swing velocity sensor system measures the velocity of the swing and compares the measured velocity to a goal velocity. The control circuit increases or decreases the velocity depending on this comparison. In other embodiments, the system includes a swing amplitude sensor system that measures the amplitude of the swing and a swing amplitude control circuit that compares the measured amplitude to a goal amplitude.Type: GrantFiled: April 11, 2008Date of Patent: March 15, 2011Inventors: Feng Pei Guang, Wu Shu Peng, Peter D. Jackson, Jason P. Cooper
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Publication number: 20090111593Abstract: Various embodiments of the invention include a motor system for driving a swing and controlling the speed and/or amplitude of the swing. In one embodiment, the motor system includes a DC motor, a swing velocity sensor system, and a swing velocity control circuit. The DC motor drives the swing through at least one fill swing cycle, and then the motor is allowed to free-wheel for at least a half swing cycle. During the free-wheeling half cycle, the swing velocity sensor system measures the velocity of the swing and compares the measured velocity to a goal velocity. The control circuit increases or decreases the velocity depending on this comparison. In other embodiments, the system includes a swing amplitude sensor system that measures the amplitude of the swing and a swing amplitude control circuit that compares the measured amplitude to a goal amplitude.Type: ApplicationFiled: April 11, 2008Publication date: April 30, 2009Inventors: Feng Pei Guang, Wu Shu Peng, Peter D. Jackson, Jason P. Cooper
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Patent number: 6894048Abstract: Substituted dihydrophthalazine sulfur containing compositions are provided which are active as non-NMDA ionotropic excitatory amino acid (EAA) receptor antagonists. The compositions are useful for treating disorders associated with excessive activation of the non-NMDA subtype of the ionotropic EAA receptor. The compounds further are useful as testing agents to identify and characterize other compounds for the treatment of these disorders. The compounds are useful therapeutically as sedatives or for the treatment of neuropsychopharmacological disorders such as stroke, ischemia and epilepsy. The compositions may be provided in combination with a suitable carrier for oral or parenteral administration. The compounds may be administered orally or parenterally for the treatment of a variety of disorders associated with non-NMDA EEA receptor function.Type: GrantFiled: September 18, 2003Date of Patent: May 17, 2005Assignee: Transgenomic, Inc.Inventors: Xue-Feng Pei, Baoqing Li, Maria-Luisa Maccecchini
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Patent number: 6887867Abstract: Substituted benzodiazepine compositions are provided which are active as non-NMDA ionotropic excitatory amino acid (EAA) receptor antagonists. The compounds are generally 7- or 8-mono substituted 5H-2,3-benzodiazepines. The compositions are useful for treating disorders associated with excessive activation of the non-NMDA subtype of the ionotropic EAA receptor. The compounds further are useful as testing agents to identify and characterize other compounds for the treatment of these disorders. The compounds are useful therapeutically as sedatives or for the treatment of neurosychopharmacological disorders such as stroke, ischemia and epilepsy. The compositions may be provided in combination with a suitable carrier for oral or parenteral administration. The compounds may be administered orally or parenterally for the treatment of a variety of disorders associated with non-NMDA EEA receptor function.Type: GrantFiled: June 15, 2001Date of Patent: May 3, 2005Assignee: Transgenomic, Inc.Inventors: Xue-Feng Pei, Baoqing Li, Maria-Luisa Maccecchini
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Publication number: 20040058928Abstract: Substituted dihydrophthalazine sulfur containing compositions are provided which are active as non-NMDA ionotropic excitatory amino acid (EAA) receptor antagonists. The compositions are useful for treating disorders associated with excessive activation of the non-NMDA subtype of the ionotropic EAA receptor. The compounds further are useful as testing agents to identify and characterize other compounds for the treatment of these disorders. The compounds are useful therapeutically as sedatives or for the treatment of neurosychopharmacological disorders such as stroke, ischemia and epilepsy. The compositions may be provided in combination with a suitable carrier for oral or parenteral administration. The compounds may be administered orally or parenterally for the treatment of a variety of disorders associated with non-NMDA EEA receptor function.Type: ApplicationFiled: September 18, 2003Publication date: March 25, 2004Applicant: Annovis, Inc.Inventors: Xue-Feng Pei, Baoqing Li, Maria-Luisa MacCecchini
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Patent number: 6703390Abstract: Substituted dihydrophthalazine sulfur containing compositions are provided which are active as non-NMDA ionotropic excitatory amino acid (EAA) receptor antagonists. The compositions are useful for treating disorders associated with excessive activation of the non-NMDA subtype of the ionotropic EAA receptor. The compounds further are useful as testing agents to identify and characterize other compounds for the treatment of these disorders. The compounds are useful therapeutically as sedatives or for the treatment of neurosychopharmacological disorders such as stroke, ischemia and epilepsy. The compositions may be provided in combination with a suitable carrier for oral or parenteral administration. The compounds may be administered orally or parenterally for the treatment of a variety of disorders associated with non-NMDA EEA receptor function.Type: GrantFiled: April 12, 2001Date of Patent: March 9, 2004Assignee: Transgenomic, Inc.Inventors: Xue-Feng Pei, Baoqing Li, Maria-Luisa Maccecchini
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Publication number: 20020188022Abstract: Disclosed is a method for inhibiting, stimulating, modulating, or regulating glutamate reuptake. The method makes use of compounds that are ligands of glutamate receptors, including many agonists, or antagonists of glutamate receptors. It has been discovered that such compounds can bind to or modulate glutamate transporters and affect extracellular glutamate levels by affecting transporter activity. The disclosed compounds can have a variety of effects on glutamate transporter activity including activation or inhibition. Such compounds are useful to treat various neurological diseases and conditions involving glutamate transporter and glutamate receptor activation. For example, excess extracellular glutamate is a cause of excessive activation of glutamate receptors. Stimulating glutamate reuptake by glutamate transporters can ameliorate excessive activation of glutamate receptors by reducing the extracellular glutamate concentration. Prodrug forms of transporter compounds can be used as drugs.Type: ApplicationFiled: October 30, 2001Publication date: December 12, 2002Applicant: Annovis. Inc.Inventors: Maria-Luisa Maccecchini, Xue-Feng Pei
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Publication number: 20020115721Abstract: Disclosed are prodrug compounds of a class of alkyl carboxy amino acid analogs of glutamic acid that act as specific regulators of the kainate EAA receptor cation channel. These compounds are useful for treating neurological, neuropsychological, neuropsychiatric, neurodegenerative, neuropsychopharmacological and functional disorders associated with excessive or insufficient activation of the kainate subtype of the ionotropic EAA receptors; treating cognitive disorders associated with deactivation, suboptimal activation or over-activation of the kainate receptor; alleviating pain and improving and enhancing memory, learning, and associated mental processes.Type: ApplicationFiled: October 30, 2001Publication date: August 22, 2002Applicant: Annovis, Inc.Inventors: Xue-Feng Pei, Maria-Luisa Maccecchini
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Publication number: 20020025958Abstract: Substituted benzodiazepine compositions are provided which are active as non-NMDA ionotropic excitatory amino acid (EAA) receptor antagonists. The compounds are generally 7- or 8-mono substituted 5H-2,3-benzodiazepines. The compositions are useful for treating disorders associated with excessive activation of the non-NMDA subtype of the ionotropic EAA receptor. The compounds further are useful as testing agents to identify and characterize other compounds for the treatment of these disorders. The compounds are useful therapeutically as sedatives or for the treatment of neurosychopharmacological disorders such as stroke, ischemia and epilepsy. The compositions may be provided in combination with a suitable carrier for oral or parenteral administration. The compounds may be administered orally or parenterally for the treatment of a variety of disorders associated with non-NMDA EEA receptor function.Type: ApplicationFiled: June 15, 2001Publication date: February 28, 2002Inventors: Xue-Feng Pei, Baoqing Li, Maria-Luisa Maccecchini
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Publication number: 20020006925Abstract: Substituted dihydrophthalazine sulfur containing compositions are provided which are active as non-NMDA ionotropic excitatory amino acid (EAA) receptor antagonists. The compositions are useful for treating disorders associated with excessive activation of the non-NMDA subtype of the ionotropic EAA receptor. The compounds further are useful as testing agents to identify and characterize other compounds for the treatment of these disorders. The compounds are useful therapeutically as sedatives or for the treatment of neurosychopharmacological disorders such as stroke, ischemia and epilepsy. The compositions may be provided in combination with a suitable carrier for oral or parenteral administration. The compounds may be administered orally or parenterally for the treatment of a variety of disorders associated with non-NMDA EEA receptor function.Type: ApplicationFiled: April 12, 2001Publication date: January 17, 2002Inventors: Xue-Feng Pei, Baoqing Li, Maria-Luisa Maccecchini