Patents by Inventor Xi Yao
Xi Yao 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: 11969891Abstract: The present disclosure relates to a 4D printed gripper with flexible finger joints and a trajectory tracking control method thereof. The 4D printed gripper with flexible finger joints includes: a palm unit and five finger units connected to the palm unit, where each finger unit includes two flexible finger joints and two phalanges; each flexible finger joint is divided into one upper layer and one lower layer of liquid crystal elastomer (LCE), and each LCE is used to implement a bidirectional bending movement of the finger unit. The present disclosure can precisely control the gripper with flexible finger joints.Type: GrantFiled: April 13, 2020Date of Patent: April 30, 2024Assignee: YANSHAN UNIVERSITYInventors: Yintang Wen, Haiying Yao, Xiaoyuan Luo, Yuyan Zhang, Xi Liang, Bo Liang
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Publication number: 20240074609Abstract: An electric frothing device includes a driving unit, a connecting rod, and a frothing unit. The driving unit has a housing, and a drive motor disposed in the housing. The drive motor has a power outputting shaft. The connecting rod is fixed to the power outputting shaft of the drive motor. The frothing unit has a fan fixed to the connecting rod and having blades, and a coil spring disposed with an interval from the blades of the fan.Type: ApplicationFiled: October 19, 2022Publication date: March 7, 2024Applicant: KITCHEN MAMA LLCInventors: Shih-Chuan CHUANG, Ching-Hsiu YAO, Mao-Xi LIU
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Patent number: 11894825Abstract: This disclosure is directed to filtering in a transceiver of an electronic device. In some instances, active analog filters may be deployed in the transceiver of the electronic device to achieve greater linearity and/or reduce noise in the transceiver. However, as signal bandwidth grows increasingly larger, an active analog filter may consume excessive power. To remedy the excessive power consumption, a passive ladder LC filter may be used. Some LC ladder filters may include a limited quality factor (Q), which may lead to undesirable effects in the transceiver (e.g., voltage droop). To address these undesirable effects, certain components in the LC ladder filter may be relocated from an input port to a feedback chain of an amplifier coupled to the LC ladder filter. The new structure may enable components in the LC ladder filter to be tuned without causing additional voltage droop across the LC ladder filter.Type: GrantFiled: June 14, 2022Date of Patent: February 6, 2024Assignee: Apple Inc.Inventors: Xi Yao, Hao Xu, Pengbei Zhang, Aly Mohamed Mamdouh Ismail
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Publication number: 20240030875Abstract: An electronic device may include wireless circuitry with a processor, a transceiver circuit, a front-end module, and an antenna. The front-end module may include amplifier circuitry such as a low noise amplifier for amplifying received radio-frequency signals. The amplifier circuitry may include non-linearity suppression circuitry that suppresses or reduces non-linear behavior of components such as a core amplification transistor and a degeneration inductor within the amplifier circuitry. The non-linearity suppression circuitry may include an intermodulation distortion suppression circuit having an auxiliary amplification transistor. The non-linearity suppression circuitry may include a frequency-selective filter coupled to the degeneration inductor.Type: ApplicationFiled: July 19, 2022Publication date: January 25, 2024Inventors: Seyed Mohammad Hossein Mohammadnezhad, Xi Yao, Aly Ismail
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Publication number: 20230402986Abstract: This disclosure is directed to filtering in a transceiver of an electronic device. In some instances, active analog filters may be deployed in the transceiver of the electronic device to achieve greater linearity and/or reduce noise in the transceiver. However, as signal bandwidth grows increasingly larger, an active analog filter may consume excessive power. To remedy the excessive power consumption, a passive ladder LC filter may be used. Some LC ladder filters may include a limited quality factor (Q), which may lead to undesirable effects in the transceiver (e.g., voltage droop). To address these undesirable effects, certain components in the LC ladder filter may be relocated from an input port to a feedback chain of an amplifier coupled to the LC ladder filter. The new structure may enable components in the LC ladder filter to be tuned without causing additional voltage droop across the LC ladder filter.Type: ApplicationFiled: June 14, 2022Publication date: December 14, 2023Inventors: Xi Yao, Hao Xu, Pengbei Zhang, Aly Mohamed Mamdouh Ismail
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Publication number: 20230322989Abstract: A polymer composite of dissimilar polymers covalently bonded at the interface is disclosed.Type: ApplicationFiled: May 26, 2023Publication date: October 12, 2023Inventors: Paul LE FLOCH, Xi YAO, Qihan LIU, Guodong NIAN, Canhui YANG, Zhigang SUO
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Patent number: 11711105Abstract: An electronic device may include wireless circuitry with a baseband processor, a transceiver circuit, a front-end module, and an antenna. The front-end module may include amplifier circuitry such as a low noise amplifier for amplifying received radio-frequency signals. The low noise amplifier is operable in a non-carrier-aggregation (NCA) mode and a carrier aggregation (CA) mode. The low noise amplifier may include a first input stage, a second input stage, a complementary degeneration transformer, and an input impedance compensation circuit. During the NCA mode, the first input stage is turned on while the second input stage is turned off, the degeneration transformer is controlled to provide maximum inductance, and the compensation circuit is turned on to provide input matching. During the CA mode, the first and second input stages are turned on, the degeneration transformer is adjusted to provide less inductance, and the compensation circuit is turned off.Type: GrantFiled: September 16, 2021Date of Patent: July 25, 2023Assignee: Apple Inc.Inventors: Seyed Mohammad Hossein Mohammadnezhad, Aly Ismail, Xi Yao
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Patent number: 11702495Abstract: A polymer composite of dissimilar polymers covalently bonded at the interface is disclosed.Type: GrantFiled: July 24, 2018Date of Patent: July 18, 2023Assignee: President and Fellows of Harvard CollegeInventors: Paul Le Floch, Xi Yao, Qihan Liu, Guodong Nian, Canhui Yang, Zhigang Suo
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Patent number: 11664844Abstract: An electronic device may include wireless circuitry with a baseband processor, a transceiver circuit, a front-end module, and an antenna. The front-end module may include amplifier circuitry such as a low noise amplifier for amplifying received radio-frequency signals. The amplifier circuitry is operable in a non-carrier-aggregation mode and a carrier aggregation mode. The amplifier circuitry may include an input transformer that is coupled to multiple amplifier stages such as a common gate amplifier stage, a cascode amplifier stage, and a common source amplifier stage. The common gate amplifier stage may include switches for selectively activating a set of cross-coupled capacitors to help maintain input impedance matching in the non-carrier-aggregation mode and the carrier-aggregation mode.Type: GrantFiled: September 20, 2022Date of Patent: May 30, 2023Assignee: Apple Inc.Inventors: Seyed Mohammad Hossein Mohammadnezhad, Xi Yao, Aly Ismail
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Patent number: 11664598Abstract: The present disclosure includes an omnidirectional dielectric resonator antenna (DRA). The omnidirectional DRA comprises a substrate, a dielectric, and a planar antenna positioned between the substrate and the dielectric. The planar antenna comprises a central planar feed positioned on the substrate. The planar antenna also comprises a plurality of feed lines coupled to, and extending outward from, the central planar feed. The planar antenna also comprises a plurality of arms coupled to the plurality of feed lines. Each arm extends from a corresponding feed line.Type: GrantFiled: April 16, 2021Date of Patent: May 30, 2023Assignee: CITY UNVIERSITY OF HONG KONGInventors: Kwok Wa Leung, Xi-Yao Liu, Nan Yang
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Publication number: 20230142507Abstract: Embodiments of the disclosure provide systems and methods for estimating an amount of monetary loss to an accident damaged vehicle. An exemplary system includes a communication interface configured to receive one or more accident images taken of an accident damaged vehicle. It also includes a database for storing loss data of one or more past vehicles, and each past vehicle is associated with a historical accident. It further includes a processor coupled to the communication interface and the database. The processor is configured to detect the accident damaged vehicle in the one or more accident images, identify one or more most similar past vehicles, and estimate the amount of monetary loss to the accident damaged vehicle based on the loss data of the one or more past vehicles.Type: ApplicationFiled: November 8, 2021Publication date: May 11, 2023Applicant: PING AN TECHNOLOGY (SHENZHEN) CO., LTD.Inventors: Xi YAO, Ruei-Sung LIN, Kun LI, Zijia CHEN
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Patent number: 11595075Abstract: An electronic device may include wireless circuitry with a baseband processor, a transceiver circuit, a front-end module, and an antenna. The front-end module may include amplifier circuitry such as a low noise amplifier for amplifying received radio-frequency signals. The amplifier circuitry is operable in a non-carrier-aggregation mode and a carrier aggregation mode. The amplifier circuitry may include an input transformer that is coupled to multiple amplifier stages such as a common gate amplifier stage, a cascode amplifier stage, and a common source amplifier stage. The common gate amplifier stage may include switches for selectively activating a set of cross-coupled capacitors to help maintain input impedance matching in the non-carrier-aggregation mode and the carrier-aggregation mode.Type: GrantFiled: June 7, 2021Date of Patent: February 28, 2023Assignee: Apple Inc.Inventors: Seyed Mohammad Hossein Mohammadnezhad, Xi Yao, Aly Ismail
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Publication number: 20230020706Abstract: An electronic device may include wireless circuitry with a baseband processor, a transceiver circuit, a front-end module, and an antenna. The front-end module may include amplifier circuitry such as a low noise amplifier for amplifying received radio-frequency signals. The amplifier circuitry is operable in a non-carrier-aggregation mode and a carrier aggregation mode. The amplifier circuitry may include an input transformer that is coupled to multiple amplifier stages such as a common gate amplifier stage, a cascode amplifier stage, and a common source amplifier stage. The common gate amplifier stage may include switches for selectively activating a set of cross-coupled capacitors to help maintain input impedance matching in the non-carrier-aggregation mode and the carrier-aggregation mode.Type: ApplicationFiled: September 20, 2022Publication date: January 19, 2023Inventors: Seyed Mohammad Hossein Mohammadnezhad, Xi Yao, Aly Ismail
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Publication number: 20220336954Abstract: The present disclosure includes an omnidirectional dielectric resonator antenna (DRA). The omnidirectional DRA comprises a substrate, a dielectric, and a planar antenna positioned between the substrate and the dielectric. The planar antenna comprises a central planar feed positioned on the substrate. The planar antenna also comprises a plurality of feed lines coupled to, and extending outward from, the central planar feed. The planar antenna also comprises a plurality of arms coupled to the plurality of feed lines. Each arm extends from a corresponding feed line.Type: ApplicationFiled: April 16, 2021Publication date: October 20, 2022Inventors: Kwok Wa LEUNG, Xi-Yao LIU, Nan YANG
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Patent number: 11384182Abstract: A composition includes one or more monomeric units having a structure of Formula (I). The one or more monomeric units in the composition can encapsulate a hydrophobic material. Further, the invention provides a method of preparing said composition. The present invention also provides a method of killing or controlling the growth of microorganisms by contacting the microorganisms with said composition.Type: GrantFiled: December 11, 2019Date of Patent: July 12, 2022Assignee: City University of Hong KongInventors: Xi Yao, Gang Lu
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Publication number: 20220094313Abstract: An electronic device may include wireless circuitry with a baseband processor, a transceiver circuit, a front-end module, and an antenna. The front-end module may include amplifier circuitry such as a low noise amplifier for amplifying received radio-frequency signals. The amplifier circuitry is operable in a non-carrier-aggregation mode and a carrier aggregation mode. The amplifier circuitry may include an input transformer that is coupled to multiple amplifier stages such as a common gate amplifier stage, a cascode amplifier stage, and a common source amplifier stage. The common gate amplifier stage may include switches for selectively activating a set of cross-coupled capacitors to help maintain input impedance matching in the non-carrier-aggregation mode and the carrier-aggregation mode.Type: ApplicationFiled: June 7, 2021Publication date: March 24, 2022Inventors: Seyed Mohammad Hossein Mohammadnezhad, Xi Yao, Aly Ismail
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Publication number: 20220085840Abstract: An electronic device may include wireless circuitry with a baseband processor, a transceiver circuit, a front-end module, and an antenna. The front-end module may include amplifier circuitry such as a low noise amplifier for amplifying received radio-frequency signals. The low noise amplifier is operable in a non-carrier-aggregation (NCA) mode and a carrier aggregation (CA) mode. The low noise amplifier may include a first input stage, a second input stage, a complementary degeneration transformer, and an input impedance compensation circuit. During the NCA mode, the first input stage is turned on while the second input stage is turned off, the degeneration transformer is controlled to provide maximum inductance, and the compensation circuit is turned on to provide input matching. During the CA mode, the first and second input stages are turned on, the degeneration transformer is adjusted to provide less inductance, and the compensation circuit is turned off.Type: ApplicationFiled: September 16, 2021Publication date: March 17, 2022Inventors: Seyed Mohammad Hossein Mohammadnezhad, Aly Ismail, Xi Yao
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Patent number: 11186731Abstract: The present disclosure describes a strategy to create self-healing, slippery self-lubricating polymers. Lubricating liquids with affinities to polymers can be utilized to get absorbed within the polymer and form a lubricant layer (of the lubricating liquid) on the polymer. The lubricant layer can repel a wide range of materials, including simple and complex fluids (water, hydrocarbons, crude oil and bodily fluids), restore liquid-repellency after physical damage, and resist ice, microorganisms and insects adhesion. Some exemplary applications where self-lubricating polymers will be useful include energy-efficient, friction-reduction fluid handling and transportation, medical devices, anti-icing, optical sensing, and as self-cleaning, and anti-fouling materials operating in extreme environments.Type: GrantFiled: May 7, 2018Date of Patent: November 30, 2021Assignee: President and Fellows of Harvard CollegeInventors: Joanna Aizenberg, Michael Aizenberg, Jiaxi Cui, Stuart Dunn, Benjamin Hatton, Caitlin Howell, Philseok Kim, Tak Sing Wong, Xi Yao
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Patent number: 11176371Abstract: An environment monitoring method and an electronic device are provided, the method divides the satellite image into a plurality of first divided images with overlapping areas, a first multi-dimensional feature map is obtained by inputting the plurality of first divided images into an environment monitoring model, the environmental monitoring model fully combines the correlation between the environmental information of different dimensions, the environmental features of a plurality of different dimensions are correlated through an association network. By utilizing the environment monitoring method, a large area of the environment monitoring effectively is realized, and accuracy of environmental detection is improved.Type: GrantFiled: December 26, 2019Date of Patent: November 16, 2021Assignee: Ping An Technology (Shenzhen) Co., Ltd.Inventors: Xi Yao, Qi Chen, Ruei-Sung Lin, Bo Gong, Yi Zhao, Mei Han, Jinghong Miao
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Patent number: 11159191Abstract: An electronic device may include wireless circuitry with a baseband processor, a transceiver circuit, a front-end module, and an antenna. The front-end module may include amplifier circuitry such as a low noise amplifier for amplifying received radio-frequency signals. The low noise amplifier is operable in a non-carrier-aggregation (NCA) mode and a carrier aggregation (CA) mode. The low noise amplifier may include a first input stage, a second input stage, a complementary degeneration transformer, and an input impedance compensation circuit. During the NCA mode, the first input stage is turned on while the second input stage is turned off, the degeneration transformer is controlled to provide maximum inductance, and the compensation circuit is turned on to provide input matching. During the CA mode, the first and second input stages are turned on, the degeneration transformer is adjusted to provide less inductance, and the compensation circuit is turned off.Type: GrantFiled: September 11, 2020Date of Patent: October 26, 2021Assignee: Apple Inc.Inventors: Seyed Mohammad Hossein Mohammadnezhad, Aly Ismail, Xi Yao