Patents by Inventor Fan Qi
Fan Qi 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: 20240159904Abstract: The present invention discloses a light detection and ranging (LIDAR) system ranging method, including: circularly allocating, by a light routing device, each periodic signal of a transmit signal to each light channel in a chronological order, monitoring a beat signal or a returned light pulse signal in each light channel, and calculating a target distance according to a frequency of the beat signal or a return delay time of the light pulse signal. The present invention further discloses a LIDAR, including: a laser source, a light routing device, an optical scanning system, a light detector, and a data processing module. A quantity of detection points per second of each beam is increased to N times, where N is a quantity of channels of the light routing device, so as to improve the detection efficiency and reduce the requirement on transmit resources; and a scanning mode and an angular resolution can be dynamically controlled according to needs.Type: ApplicationFiled: December 27, 2022Publication date: May 16, 2024Inventors: Su Li, Fan Qi, Pengfei Cai, Yongpeng Zhao
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Publication number: 20240151831Abstract: The present invention provides a dual-polarized Lidar receiving end based on an optical chip, including a module for receiving reflected light, a module for receiving local oscillator light, a plurality of frequency mixers, a plurality of detectors and a plurality of variable optical attenuators. The Lidar receiving end according to the present invention can receive and process two optical signals in an orthogonal polarization state. Compared with the existing Lidar design solution, a system on chip based on the optical chip according to the present invention implements monolithic integration of massive devices, and has the advantages of high stability, small volume and low weight and costs, and the like. It is relatively easy to increase a quantity of channels at the receiving end designed according to the present invention.Type: ApplicationFiled: November 8, 2022Publication date: May 9, 2024Inventors: Fan Qi, Pengfei Cai
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Publication number: 20240070371Abstract: This application discloses a computing system to identify suspected defects in a manufactured integrated circuit, which correspond to electrical failures detected by a test applied to the manufactured integrated circuit. The computing system can utilize the suspected defects in the manufactured integrated circuit to cluster features in a physical layout design describing the manufactured integrated circuit. Each cluster of the features corresponds to a candidate for a physical root cause of the suspected defects in the manufactured integrated circuit. The computing system can detect a physical root cause of the electrical failures in the manufactured integrated circuit based on the clusters of the features. A physical failure analysis process includes an inspection of the manufactured integrated circuit to confirm the physical root cause of the electrical failures in the manufactured integrated circuit corresponds to a systemic manufacturing fault in the manufactured integrated circuit.Type: ApplicationFiled: August 30, 2022Publication date: February 29, 2024Inventors: Xiaoyuan Qi, Fan Jiang, Gaurav Veda, Manish Sharma, Wu-Tung Cheng
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Publication number: 20230314209Abstract: The present invention provides a photodiode structure with a dark current indication function, including a photosensitive photodiode and a reference photodiode, where a photosensitive surface of the reference photodiode is provided with a light-blocking layer, and there is a fixed multiple relationship between dark currents of the photosensitive photodiode and the reference photodiode. The present invention further provides a photoelectric sensor, including a processing module and the photodiode structure. According to a structural design of the present invention, the photodiode structure may output two paths of current signals, so that an accurate signal photocurrent can be obtained only by subtracting the two paths of current signals in practice work, so as to finally achieve the objectives of eliminating the dark currents and reducing noise; and moreover, in the present invention, the dark currents of photodiodes are eliminated without increasing peripheral devices.Type: ApplicationFiled: December 27, 2022Publication date: October 5, 2023Inventors: Bin Shi, Fan Qi, Pengfei Cai
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Publication number: 20230238403Abstract: The present invention provides a normal-incident photodiode structure with a dark current self-compensation function, including a photosensitive photodiode and a compensating photodiode, where a photosensitive surface of the compensating photodiode is provided with a light-blocking layer, and dark currents of the photosensitive photodiode and the compensating photodiode are equal.Type: ApplicationFiled: December 27, 2022Publication date: July 27, 2023Inventors: Bin Shi, Fan Qi, Pengfei Cai
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Publication number: 20230037323Abstract: A preparation method of a composite anode material of micrometer-sized carbon-coated silicon and carbon includes: subjecting micrometer-sized silicon particles to a chemical vapor deposition reaction under a gas atmosphere containing carbon to obtain carbon-coated first micrometer-sized silicon particles; dispersing the carbon-coated first micrometer-sized silicon particles in a first mixed solvent to obtain a dispersed solution; adding alkali into the dispersed solution and heating the dispersed solution to obtain carbon-coated second micrometer-sized silicon particles; dispersing the carbon-coated second micrometer-sized silicon particles and graphene oxide in a second mixed solvent that are subjected to a hydrothermal reaction to obtain a composite hydrogel of reduced graphene oxide, silicon, and carbon; and heating the hydrogel to obtain the composite anode material.Type: ApplicationFiled: January 15, 2021Publication date: February 9, 2023Inventors: QUAN-HONG YANG, FAN-QI CHEN, JUN-WEI HAN, JING XIAO, DE-BIN KONG, YING TAO
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Patent number: 11486054Abstract: A method for growing a crystal boule includes the steps of: periodically pulling upwardly a seed crystal dipped into a melt in a crucible to grow a first neck of the crystal boule below the seed crystal; and continuously pulling upwardly the seed crystal and the first neck of the crystal boule to grow a second neck of the crystal boule below the first neck.Type: GrantFiled: March 12, 2020Date of Patent: November 1, 2022Assignee: Fujian Jing'an Optoelectronics Co., Ltd.Inventors: Qiankun Liu, Fan Qi, Fengbo Wu, Jianyun Yu, Pin-Hui Hsieh
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Publication number: 20220079786Abstract: A degradable drug-loaded stent and a manufacturing method therefor. The degradable drug-loaded stent comprises a stent body, an outer surface of the stent body being provided with a drug-loaded groove, the stent body having a contracted state and an expanded state, the stent body being capable of switching from the contracted state to the expanded state via radial expansion, the stent body being a mesh columnar structure when in the expanded state, the depth of the drug-loaded groove being 10%-60% of the wall thickness of the mesh columnar structure.Type: ApplicationFiled: May 9, 2020Publication date: March 17, 2022Inventors: Wei LIU, Xueqin WANG, Yaqin GAO, Fan QI
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Publication number: 20220005961Abstract: Various embodiments of a photodetector having a reflector are described. The photodetector includes a waveguide layer disposed on top of a substrate, an avalanche multiplication detection region disposed on top of the waveguide layer, and a reflector disposed adjacent to a rear surface of the waveguide layer. The waveguide layer includes a narrower input section and a wider detection section concatenated with the input section. The waveguide layer may also include a tapering section having a changing width that follows the detection section. The reflector may be a one-dimensional photonic crystal, a two-dimensional photonic crystal, or a bulk material. A careful design of the reflector and the waveguide layer of the photodetector is helpful in achieving a high responsivity and a high operation speed at the same time.Type: ApplicationFiled: June 27, 2021Publication date: January 6, 2022Inventors: Fan Qi, Tzung-I Su, Bin Shi, Pengfei Cai, Dong Pan
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Publication number: 20200208293Abstract: A method for growing a crystal boule includes the steps of: periodically pulling upwardly a seed crystal dipped into a melt in a crucible to grow a first neck of the crystal boule below the seed crystal; and continuously pulling upwardly the seed crystal and the first neck of the crystal boule to grow a second neck of the crystal boule below the first neck.Type: ApplicationFiled: March 12, 2020Publication date: July 2, 2020Applicant: Fujian Jing'an Optoelectronics Co., Ltd.Inventors: Qiankun Liu, Fan Qi, Fengbo Wu, Jianyun Yu, Pin-Hui Hsieh
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Patent number: 10610561Abstract: The present invention provides a pharmaceutical composition or a cosmetic product which can accelerate production of ceramide in cells. The ceramide production-accelerating agent contains a plant selected from the group consisting of Radix Heraclei Scabridi, Rhizoma Dioscoreae, Radix Rehmanniae, Rhizoma Atractylodis Macrocephalae, Radix Glycyrrhizae, Radix Et Rhizoma Rhei, Pseudobulbus Bletillae, Radix Polygoni Multiflori, Radix Platycodi, and Herba Leonuri, or an extract thereof as an active ingredient. Further, the present invention provides a moisturizing agent containing a plant selected from the group consisting of Herba Leonuri and Rhizoma Dioscoreae, or an extract thereof as an active ingredient.Type: GrantFiled: January 20, 2015Date of Patent: April 7, 2020Assignees: Zhongshan Hospital of Fudan University, Kao CorporationInventors: Wan Zhang Qin, Chun Xin Yang, Fan Qi Kong, Hiroshi Nojiri, Shotaro Ito
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Publication number: 20150132415Abstract: The present invention provides a pharmaceutical composition or a cosmetic product which can accelerate production of ceramide in cells. The ceramide production-accelerating agent contains a plant selected from the group consisting of Radix Heraclei Scabridi, Rhizoma Dioscoreae, Radix Rehmanniae, Rhizoma Atractylodis Macrocephalae, Radix Glycyrrhizae, Radix Et Rhizoma Rhei, Pseudobulbus Bletillae, Radix Polygoni Multiflori, Radix Platycodi, and Herba Leonuli, or an extract thereof as an active ingredient. Further, the present invention provides a moisturizing agent containing a plant selected from the group consisting of Herba Leonuri and Rhizoma Dioscoreae, or an extract thereof as an active ingredient.Type: ApplicationFiled: January 20, 2015Publication date: May 14, 2015Applicants: Zhongshan Hospital of Fudan University, Kao CorporationInventors: Wan Zhang QIN, Chun Xin Yang, Fan Qi Kong, Hiroshi Nojiri, Shotaro Ito
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Publication number: 20110200694Abstract: The present invention provides a pharmaceutical composition or a cosmetic product which can accelerate production of ceramide in cells. The ceramide production-accelerating agent contains a plant selected from the group consisting of Radix Heraclei Scabridi, Rhizoma Dioscoreae, Radix Rehmanniae, Rhizoma Atractylodis Macrocephalae, Radix Glycyrrhizae, Radix Et Rhizoma Rhei, Pseudobulbus Bletillae, Radix Polygoni Multiflori, Radix Platycodi, and Herba Leonuli, or an extract thereof as an active ingredient. Further, the present invention provides a moisturizing agent containing a plant selected from the group consisting of Herba Leonuri and Rhizoma Dioscoreae, or an extract thereof as an active ingredient.Type: ApplicationFiled: August 17, 2009Publication date: August 18, 2011Applicants: Zhongshan Hospital of Fudan University, Kao CorporationInventors: Wan Zhang Qin, Chun Xin Yang, Fan Qi Kong, Hiroshi Nojiri, Shotaro Ito