Patents by Inventor Zhen Qu
Zhen Qu 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: 20240108784Abstract: A hydrogel for cell-laden bioprinting, bioink, and a preparation method and an application thereof, relates to the technical field of biomedical polymer hydrogels. The hydrogel for cell-laden bioprinting is polymer gel formed by adding a cell-specific material into a matrix of alginate and gelatin and crosslinking and curing, wherein the cell-specific material is polypeptide selected according to different laden cells. The structures printed using the hydrogel may have the advantages such as adjustable mechanical properties, adjustable porosity, high biocompatibility, high printing accuracy, and high customizability, which may widely support the printing of human tissues and organs such as spinal cord, cartilage, and heart, and has good prospects for applications in tissue repair, organ transplantation and so on.Type: ApplicationFiled: December 15, 2022Publication date: April 4, 2024Applicants: SHANDONG UNIVERSITY, YANSHAN UNIVERSITYInventors: Chuanzhen HUANG, Zhuang CHEN, Hanlian LIU, Peng YAO, Zhenyu SHI, Dun LIU, Hongtao ZHU, Bin ZOU, Zhen WANG, Minting WANG, Longhua XU, Shuiquan HUANG, Meina QU, Zhengkai XU, Yabin GUAN
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Patent number: 11949459Abstract: A ternary phase shift keying transmitter and receiver can efficiently communicate using ternary encoded data that avoids indistinguishable transition curves for each of the three modulated states in the ternary encoded data. The transmitter is interoperable and can function with different types of receivers including direct detection-based receivers and coherent detection-based receivers.Type: GrantFiled: May 17, 2022Date of Patent: April 2, 2024Assignee: Juniper Networks, Inc.Inventor: Zhen Qu
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Patent number: 11937029Abstract: An optical transmitter can generate probabilistically shaped quadrature amplitude modulation (PS-QAM) signaling for transmission over a fiber to a destination without optical amplification. The single fiber can transmit the PS-QAM signaling using dense wavelength division multiplexing having a relatively large number of channels that are closely spaced. A coherent receiver can receive the PS-QAM signaling for decoding without implementing chromatic dispersion compensation.Type: GrantFiled: August 3, 2021Date of Patent: March 19, 2024Assignee: Juniper Networks, Inc.Inventors: Zhen Qu, Xiao Han, Yang Yue
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Publication number: 20240067567Abstract: An alumina-based ceramic tool material with low thermal expansion and a preparation process thereof, accordingly, the ceramic tool material may have both the high hardness of alumina ceramics after the hot pressing sintering, and reduces the thermal expansion coefficient of the overall ceramic material by adding the Sc2W3O12 as the negative thermal expansion phase, which improves the thermal shock resistance of ceramic tools in high-speed cutting engineering and meets the requirements of large temperature range during the machining of nickel-based superalloys. Moreover, the composite material does not use metal binder and has strong thermal stability even in the high-speed machining under extreme heat-force-chemistry coupling, so it has a high machining compatibility for nickel-based superalloys.Type: ApplicationFiled: September 28, 2022Publication date: February 29, 2024Applicants: SHANDONG UNIVERSITY, YANSHAN UNIVERSITYInventors: Chuanzhen HUANG, Zexin LI, Hanlian LIU, Zhenyu SHI, Peng YAO, Dun LIU, Hongtao ZHU, Bin ZOU, Jun WANG, Zhen WANG, Longhua XU, Shuiquan HUANG, Meina QU, Zhengkai XU
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Publication number: 20230291478Abstract: A co-packaged optical-electrical chip can include an application-specific integrated circuit (ASIC) and a plurality of optical modules, such as optical transceivers. The ASIC and each of the optical modules can exchange electrical signaling via integrated electrical paths. The ASIC can include Ethernet switch, error correction, bit-to-symbol mapping/demapping, and digital signal processing circuits to pre-compensate and post-compensate channel impairments (e.g., inter-channel/intra-channel impairments) in electrical and optical domains. The co-packaged inter-chip interface can be scaled to handle different data rates using spectral efficient signaling formats (e.g., QAM-64, PAM-8) without adding additional data lines to a given design and without significantly increasing the power consumption of the design.Type: ApplicationFiled: May 15, 2023Publication date: September 14, 2023Inventors: Domenico Di Mola, Steven B. Alleston, Zhen Qu, Ryan Holmes
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Publication number: 20230254042Abstract: A sourceless co-packaged optical-electrical chip can include a plurality of different optical transceivers, each of which can transmit to an external destination or internal components. Each of the transceivers can be configured for a different modulation format, such as different pulse amplitude, phase shift key, and quadrature amplitude modulation formats. Different light sources provide light for processing by the transceivers, where the light source and transceivers can be configured for different applications (e.g., different distances) and data rates. An optical coupler can combine the light for the different transceivers for input into the sourceless co-packaged optical-electrical chip via a polarization maintaining media (e.g., polarization maintaining few mode fiber and polarization maintaining single mode fiber), where another coupler operates in splitting mode to separate the different channels of light for the different transceivers according to different co-packaged configurations.Type: ApplicationFiled: April 4, 2023Publication date: August 10, 2023Inventors: Domenico Di Mola, Steven B. Alleston, Zhen Qu, Ryan Holmes, Jeffrey J. Maki, Chul Soo Park, Yang Yue, Jon J. Anderson
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Patent number: 11689289Abstract: A co-packaged optical-electrical chip can include an application-specific integrated circuit (ASIC) and a plurality of optical modules, such as optical transceivers. The ASIC and each of the optical modules can exchange electrical signaling via integrated electrical paths. The ASIC can include Ethernet switch, error correction, bit-to-symbol mapping/demapping, and digital signal processing circuits to pre-compensate and post-compensate channel impairments (e.g., inter-channel/intra-channel impairments) in electrical and optical domains. The co-packaged inter-chip interface can be scaled to handle different data rates using spectral efficient signaling formats (e.g., QAM-64, PAM-8) without adding additional data lines to a given design and without significantly increasing the power consumption of the design.Type: GrantFiled: September 17, 2021Date of Patent: June 27, 2023Assignee: Juniper Networks, Inc.Inventors: Domenico Di Mola, Steven B. Alleston, Zhen Qu, Ryan Holmes
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Patent number: 11632175Abstract: A sourceless co-packaged optical-electrical chip can include a plurality of different optical transceivers, each of which can transmit to an external destination or internal components. Each of the transceivers can be configured for a different modulation format, such as different pulse amplitude, phase shift key, and quadrature amplitude modulation formats. Different light sources provide light for processing by the transceivers, where the light source and transceivers can be configured for different applications (e.g., different distances) and data rates. An optical coupler can combine the light for the different transceivers for input into the sourceless co-packaged optical-electrical chip via a polarization maintaining media (e.g., polarization maintaining few mode fiber and polarization maintaining single mode fiber), where another coupler operates in splitting mode to separate the different channels of light for the different transceivers according to different co-packaged configurations.Type: GrantFiled: September 9, 2021Date of Patent: April 18, 2023Assignee: Juniper Networks, Inc.Inventors: Domenico Di Mola, Steven B. Alleston, Zhen Qu, Ryan Holmes, Jeffery J. Maki, Chul Soo Park, Yang Yue, Jon J. Anderson
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Publication number: 20230043960Abstract: An optical transmitter can generate probabilistically shaped quadrature amplitude modulation (PS-QAM) signaling for transmission over a fiber to a destination without optical amplification. The single fiber can transmit the PS-QAM signaling using dense wavelength division multiplexing having a relatively large number of channels that are closely spaced. A coherent receiver can receive the PS-QAM signaling for decoding without implementing chromatic dispersion compensation.Type: ApplicationFiled: August 3, 2021Publication date: February 9, 2023Inventors: Zhen Qu, Xiao Han, Yang Yue
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Patent number: 11522616Abstract: A method includes applying, to a modulated digital signal, a forward error correction (FEC) including a low-density parity-check (LDPC) to produce a coded digital signal. Nyquist shaping is applied to the coded digital signal to generate a filtered digital signal. A representation of the filtered digital signal is transmitted in an optical communication channel via a dense wavelength division multiplexing (DWDM) scheme.Type: GrantFiled: November 12, 2021Date of Patent: December 6, 2022Assignee: Juniper Networks, Inc.Inventors: Yang Yue, Qiang Wang, Zhen Qu, Xiao Han
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Publication number: 20220278756Abstract: A ternary phase shift keying transmitter and receiver can efficiently communicate using ternary encoded data that avoids indistinguishable transition curves for each of the three modulated states in the ternary encoded data. The transmitter is interoperable and can function with different types of receivers including direct detection-based receivers and coherent detection-based receivers.Type: ApplicationFiled: May 17, 2022Publication date: September 1, 2022Inventor: Zhen Qu
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Patent number: 11362737Abstract: A ternary phase shift keying transmitter and receiver can efficiently communicate using ternary encoded data that avoids indistinguishable transition curves for each of the three modulated states in the ternary encoded data. The transmitter is interoperable and can function with different types of receivers including direct detection-based receivers and coherent detection-based receivers.Type: GrantFiled: April 7, 2021Date of Patent: June 14, 2022Assignee: Juniper Networks, Inc.Inventor: Zhen Qu
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Publication number: 20220103261Abstract: A co-packaged optical-electrical chip can include an application-specific integrated circuit (ASIC) and a plurality of optical modules, such as optical transceivers. The ASIC and each of the optical modules can exchange electrical signaling via integrated electrical paths. The ASIC can include Ethernet switch, error correction, bit-to-symbol mapping/demapping, and digital signal processing circuits to pre-compensate and post-compensate channel impairments (e.g., inter-channel/intra-channel impairments) in electrical and optical domains. The co-packaged inter-chip interface can be scaled to handle different data rates using spectral efficient signaling formats (e.g., QAM-64, PAM-8) without adding additional data lines to a given design and without significantly increasing the power consumption of the design.Type: ApplicationFiled: September 17, 2021Publication date: March 31, 2022Inventors: Domenico Di Mola, Steven B. Alleston, Zhen Qu, Ryan Holmes
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Publication number: 20220069918Abstract: A method includes applying, to a modulated digital signal, a forward error correction (FEC) including a low-density parity-check (LDPC) to produce a coded digital signal. Nyquist shaping is applied to the coded digital signal to generate a filtered digital signal. A representation of the filtered digital signal is transmitted in an optical communication channel via a dense wavelength division multiplexing (DWDM) scheme.Type: ApplicationFiled: November 12, 2021Publication date: March 3, 2022Applicant: Juniper Networks, Inc.Inventors: Yang YUE, Qiang WANG, Zhen QU, Xiao HAN
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Publication number: 20220052759Abstract: A sourceless co-packaged optical-electrical chip can include a plurality of different optical transceivers, each of which can transmit to an external destination or internal components. Each of the transceivers can be configured for a different modulation format, such as different pulse amplitude, phase shift key, and quadrature amplitude modulation formats. Different light sources provide light for processing by the transceivers, where the light source and transceivers can be configured for different applications (e.g., different distances) and data rates. An optical coupler can combine the light for the different transceivers for input into the sourceless co-packaged optical-electrical chip via a polarization maintaining media (e.g., polarization maintaining few mode fiber and polarization maintaining single mode fiber), where another coupler operates in splitting mode to separate the different channels of light for the different transceivers according to different co-packaged configurations.Type: ApplicationFiled: September 9, 2021Publication date: February 17, 2022Inventors: Domenico Di Mola, Steven B. Alleston, Zhen Qu, Ryan Holmes, Jeffery J. Maki, Chul Soo Park, Yang Yue, Jon J. Anderson
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Patent number: 11177888Abstract: A method includes modulating a digital signal via pulse amplitude modulation (PAM) and applying Nyquist shaping to the digital signal to generate a filtered digital signal. The method also includes converting the filtered digital signal into an analog signal and transmitting the analog signal in an optical communication channel via a dense wavelength division multiplexing (DWDM) scheme.Type: GrantFiled: December 23, 2020Date of Patent: November 16, 2021Assignee: Juniper Networks, Inc.Inventors: Yang Yue, Qiang Wang, Zhen Qu, Xiao Han
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Publication number: 20210336704Abstract: A ternary phase shift keying transmitter and receiver can efficiently communicate using ternary encoded data that avoids indistinguishable transition curves for each of the three modulated states in the ternary encoded data. The transmitter is interoperable and can function with different types of receivers including direct detection-based receivers and coherent detection-based receivers.Type: ApplicationFiled: April 7, 2021Publication date: October 28, 2021Inventor: Zhen Qu
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Patent number: 11159240Abstract: A co-packaged optical-electrical chip can include an application-specific integrated circuit (ASIC) and a plurality of optical modules, such as optical transceivers. The ASIC and each of the optical modules can exchange electrical signaling via integrated electrical paths. The ASIC can include Ethernet switch, error correction, bit-to-symbol mapping/demapping, and digital signal processing circuits to pre-compensate and post-compensate channel impairments (e.g., inter-channel/intra-channel impairments) in electrical and optical domains. The co-packaged inter-chip interface can be scaled to handle different data rates using spectral efficient signaling formats (e.g., QAM-64, PAM-8) without adding additional data lines to a given design and without significantly increasing the power consumption of the design.Type: GrantFiled: September 30, 2020Date of Patent: October 26, 2021Assignee: Juniper Networks, Inc.Inventors: Domenico Di Mola, Steven B. Alleston, Zhen Qu, Ryan Holmes
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Patent number: 11159238Abstract: A sourceless co-packaged optical-electrical chip can include a plurality of different optical transceivers, each of which can transmit to an external destination or internal components. Each of the transceivers can be configured for a different modulation format, such as different pulse amplitude, phase shift key, and quadrature amplitude modulation formats. Different light sources provide light for processing by the transceivers, where the light source and transceivers can be configured for different applications (e.g., different distances) and data rates. An optical coupler can combine the light for the different transceivers for input into the sourceless co-packaged optical-electrical chip via a polarization maintaining media (e.g., polarization maintaining few mode fiber and polarization maintaining single mode fiber), where another coupler operates in splitting mode to separate the different channels of light for the different transceivers according to different co-packaged configurations.Type: GrantFiled: August 11, 2020Date of Patent: October 26, 2021Assignee: Juniper Networks, Inc.Inventors: Domenico Di Mola, Steven B. Alleston, Zhen Qu, Ryan Holmes, Jeffery J. Maki, Chul Soo Park, Yang Yue, Jon J. Anderson
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Patent number: 10992388Abstract: A ternary phase shift keying transmitter and receiver can efficiently communicate using ternary encoded data that avoids indistinguishable transition curves for each of the three modulated states in the ternary encoded data. The transmitter is interoperable and can function with different types of receivers including direct detection-based receivers and coherent detection-based receivers.Type: GrantFiled: April 24, 2020Date of Patent: April 27, 2021Assignee: Juniper Networks, Inc.Inventor: Zhen Qu