Patents by Inventor Kun Xiang
Kun Xiang 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: 11978241Abstract: Embodiments of the disclosure provide an image processing method and apparatus, a computer-readable medium, and an electronic device. The image processing method includes: extracting a feature map of a target image; dividing the feature map into target regions; determining weights of the target regions according to feature vectors of the target regions; and generating a feature vector of the target image according to the weights of the target regions and the feature vectors of the target regions.Type: GrantFiled: June 21, 2021Date of Patent: May 7, 2024Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LTDInventors: Kun Jin, Shi Jie Zhao, Yang Yi, Feng Li, Xiao Xiang Zuo
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Publication number: 20240134147Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion used for connecting an optical element, a fixed portion, and a driving assembly used for driving the movable portion to move relative to the fixed portion. The movable portion is movable relative to the fixed portion.Type: ApplicationFiled: October 19, 2023Publication date: April 25, 2024Inventors: Po-Xiang ZHUANG, Chen-Hung CHAO, Wei-Jhe SHEN, Shou-Jen LIU, Kun-Shih LIN, Yi-Ho CHEN
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Publication number: 20240094498Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion used for connecting an optical element, a fixed portion, and a driving assembly used for driving the movable portion to move relative to the fixed portion. The movable portion is movable relative to the fixed portion.Type: ApplicationFiled: September 14, 2023Publication date: March 21, 2024Inventors: Po-Xiang ZHUANG, Chen-Hung CHAO, Wei-Jhe SHEN, Shou-Jen LIU, Kun-Shih LIN, Yi-Ho CHEN
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Publication number: 20240085328Abstract: Systems and methods are provided for excitation spectral microscopy using frame-synchronized acousto-optic scanning of fluorescent excitation wavelengths. Linear unmixing of the images of targets of components that are individually labeled with different fluorophores can be simultaneously imaged with high temporal resolution and low crosstalk and the local abundance of each fluorophore at each pixel can be quantified. Fluorophore decomposed micrographs of the sample can be obtained by rendering the abundance in each pixel as an image.Type: ApplicationFiled: October 11, 2023Publication date: March 14, 2024Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Ke Xu, Kun Chen, Rui Yan, Limin Xiang
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Publication number: 20240077697Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion used for connecting an optical element, a fixed portion, and a driving assembly used for driving the movable portion to move relative to the fixed portion. The movable portion is movable relative to the fixed portion.Type: ApplicationFiled: September 7, 2023Publication date: March 7, 2024Inventors: Po-Xiang ZHUANG, Chen-Hung CHAO, Wei-Jhe SHEN, Shou-Jen LIU, Kun-Shih LIN, Yi-Ho CHEN
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Publication number: 20240077744Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion used for connecting an optical element, a fixed portion, and a driving assembly used for driving the movable portion to move relative to the fixed portion. The movable portion is movable relative to the fixed portion.Type: ApplicationFiled: September 7, 2023Publication date: March 7, 2024Inventors: Po-Xiang ZHUANG, Chen-Hung CHAO, Wei-Jhe SHEN, Shou-Jen LIU, Kun-Shih LIN, Yi-Ho CHEN
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Patent number: 11757419Abstract: A radio frequency power amplifier circuit includes a controllable attenuation circuit, an input matching circuit, a drive amplification circuit, an inter-stage matching circuit, a power amplification circuit and an output matching circuit connected in sequence, and respectively configured to switch between a negative gain mode and a non-negative gain mode of the radio frequency power amplifier circuit based on a mode control signal, match the impedance between the controllable attenuation circuit and the drive amplification circuit, amplify a signal, configured to match the impedance between the drive amplification circuit and the power amplification circuit, amplify a signal, and match the impedance between the radio frequency power amplifier circuit and a post-stage circuit. A feedback circuit is connected across the drive amplification circuit, and is configured to adjust a gain.Type: GrantFiled: December 29, 2020Date of Patent: September 12, 2023Assignee: SMARTER MICROELECTRONICS (GUANG ZHOU) CO., LTD.Inventors: Zhenfei Peng, Qiang Su, Kun Xiang
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Patent number: 11502651Abstract: An overvoltage protection and gain bootstrap circuit of a power amplifier includes a power amplification transistor, and a diode reversely connected with a gate of the power amplification transistor. A negative electrode of the diode is connected with the gate of the power transistor, and a positive electrode of the diode is connected with a constant voltage source, such that a function of overvoltage protection and gain bootstrap of the circuit is realized by controlling a turn-on state of the diode. By adding a diode device to the circuit, gate-drain overvoltage protection for the power amplification transistor can be provided, and the gain of the amplifier can be improved before power compression, thereby improving linearity of the power amplifier. The structure of the circuit can be simple, with reduced occupied area hardware cost.Type: GrantFiled: December 30, 2020Date of Patent: November 15, 2022Assignee: SMARTER MICROELECTRONICS (GUANG ZHOU) CO., LTD.Inventors: Zhenfei Peng, Qiang Su, Kun Xiang
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Publication number: 20210297047Abstract: An overvoltage protection and gain bootstrap circuit of a power amplifier includes a power amplification transistor, and a diode reversely connected with a gate of the power amplification transistor. A negative electrode of the diode is connected with the gate of the power transistor, and a positive electrode of the diode is connected with a constant voltage source, such that a function of overvoltage protection and gain bootstrap of the circuit is realized by controlling a turn-on state of the diode. By adding a diode device to the circuit, gate-drain overvoltage protection for the power amplification transistor can be provided, and the gain of the amplifier can be improved before power compression, thereby improving linearity of the power amplifier. The structure of the circuit can be simple, with reduced occupied area hardware cost.Type: ApplicationFiled: December 30, 2020Publication date: September 23, 2021Applicant: SMARTER MICROELECTRONICS (GUANG ZHOU) CO., LTD.Inventors: Zhenfei PENG, Qiang SU, Kun XIANG
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Publication number: 20210265965Abstract: A radio frequency power amplifier circuit includes a controllable attenuation circuit, an input matching circuit, a drive amplification circuit, an inter-stage matching circuit, a power amplification circuit and an output matching circuit connected in sequence, and respectively configured to switch between a negative gain mode and a non-negative gain mode of the radio frequency power amplifier circuit based on a mode control signal, match the impedance between the controllable attenuation circuit and the drive amplification circuit, amplify a signal, configured to match the impedance between the drive amplification circuit and the power amplification circuit, amplify a signal, and match the impedance between the radio frequency power amplifier circuit and a post-stage circuit. A feedback circuit is connected across the drive amplification circuit, and is configured to adjust a gain.Type: ApplicationFiled: December 29, 2020Publication date: August 26, 2021Applicant: SMARTER MICROELECTRONICS (GUANG ZHOU) CO., LTD.Inventors: Zhenfei PENG, Qiang SU, Kun XIANG
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Patent number: 10703580Abstract: The present invention is related to a replenishment method and device in an assembly line. A usage storage area for storing a first object set and a spare storage area for storing a second object set are defined in the replenishment apparatus. The replenishment apparatus comprises a fixing carrier in the usage storage area and a moving carrier in the spare storage area. The replenishment method comprises driving the moving carrier to move the second object set in the spare usage area to the fixing carrier in the usage storage area when a remaining number of objects in the first object set carried in the fixing carrier is zero and the first object set in the fixing carrier is removed; and moving the moving carrier to leave the fixing carrier and recover to the spare usage area.Type: GrantFiled: February 11, 2019Date of Patent: July 7, 2020Assignee: Wistron CorporationInventors: Jiao Ye, Jingang Tong, Kun Xiang, Qiang Jia
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Publication number: 20200109013Abstract: The present invention is related to a replenishment method and device in an assembly line. A usage storage area for storing a first object set and a spare storage area for storing a second object set are defined in the replenishment apparatus. The replenishment apparatus comprises a fixing carrier in the usage storage area and a moving carrier in the spare storage area. The replenishment method comprises driving the moving carrier to move the second object set in the spare usage area to the fixing carrier in the usage storage area when a remaining number of objects in the first object set carried in the fixing carrier is zero and the first object set in the fixing carrier is removed; and moving the moving carrier to leave the fixing carrier and recover to the spare usage area.Type: ApplicationFiled: February 11, 2019Publication date: April 9, 2020Inventors: Jiao Ye, Jingang Tong, Kun Xiang, Qiang Jia
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Patent number: 5581831Abstract: An ergonomic pillow includes a body having a top with upper, middle, and lower stepped portions descending from the rear to the front thereof, and a transverse, elongated support member arranged between the upper and middle stepped portions. The pillow is usable for supporting a supine person for sleeping, so that the head is supported on the upper stepped portion, the neck is supported on the elongated support member, the shoulders are supported on the middle and lower stepped portions. Thus the head is tilted back slightly relative to the back, so as to promote shortening and relaxation of the muscles on the back of the neck and shoulders. The pillow is also usable for supporting a person sleeping sideways, so that a shoulder is supported on the middle and lower stepped portions, and the head is supported on the elongated support member in a comfortable, natural position.Type: GrantFiled: December 5, 1995Date of Patent: December 10, 1996Inventor: Kun Xiang
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Patent number: 5533787Abstract: An adjustable back support device comprises a seat cover snugly enclosing the seat back of a car seat, and a basic set of three cushions. The seat cover and the shells of the cushions are made of fastening-loop fabric. The cushions also include fastening-hook strips disposed thereon, so that they can be individually attached to the seat cover for supporting different parts of a user's body, such as the neck, upper back, and lumbar area. The cushions can be easily and precisely positioned to suit individual users, and can be attached anywhere on the seat cover for supporting other parts of a user's body. Fewer or more cushions can be used if desired to suit individual preferences.Type: GrantFiled: March 25, 1994Date of Patent: July 9, 1996Inventor: Kun Xiang