Patents by Inventor Li Zeng
Li Zeng 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: 20190171044Abstract: An electro-optic modulator includes an input waveguide, a beam splitter connected to the input waveguide, a modulation arm that is disposed on each branch of the beam splitter and modulates a signal. Each modulation arm is correspondingly disposed with a first layer electrode and a second layer electrode. The first layer electrode is a high-frequency traveling wave electrode and is configured to change carrier concentration in the modulation arm, the second layer electrode is a direct current electrode having an inductor function, and an inductor formed in the second layer electrode is connected to the first layer electrode. The electro-optic modulator has functions of a bias tee, so that integration of the electro-optic modulator can be improved without affecting its performance. High-density packaging layout difficulty and cabling pressure can be effectively reduced, and cabling and packaging of a multi-channel high-speed signal on a base board can be implemented.Type: ApplicationFiled: January 18, 2019Publication date: June 6, 2019Inventors: Yanbo Li, Xiaolu Song, Zhen Dong, Ruiqiang Ji, Shengmeng Fu, Li Zeng
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Patent number: 10230486Abstract: An optical transceiver and a network device are provided. The optical transceiver includes a common end module and two data submodules. The common end module includes a multi-carrier light source, a wavelength division multiplexer, a wavelength division demultiplexer, an external optical interface, and two first beam splitters. Each data submodule includes a second beam splitter, an optical/electrical signal modulator, and an optical receiver. According to the optical transceiver and the network device, a high-capacity optical transceiver with a single optical interface can be implemented, so that optical interface management complexity is reduced, and a fiber resource is reduced.Type: GrantFiled: October 13, 2017Date of Patent: March 12, 2019Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Jiangwei Man, Xiaolu Song, Li Zeng
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Publication number: 20180321451Abstract: An optical coupling apparatus and method are described. An embodiment of an optical coupling apparatus may include a first optical chip, a second optical chip, and an optical writing waveguide block. In the apparatus, the first optical chip is coupled to the optical writing waveguide block in a first coupling manner, and the second optical chip is coupled to the optical writing waveguide block in a second coupling manner. Furthermore, in the apparatus, the first optical chip is optically interconnected to the second optical chip by using the optical writing waveguide block. Compatibility between a plurality of coupling manners is therefore enabled by using the technical solutions described herein.Type: ApplicationFiled: July 16, 2018Publication date: November 8, 2018Inventors: Qing Zhao, Xiaolu Song, Li Zeng, Ruiqiang Ji, Yanbo Li
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Publication number: 20180146243Abstract: Rendering video is disclosed including responding to an access request from a video data provider using a first video buffer queue corresponding to a first rendering technique, receiving a request to change the first rendering technique to a second rendering technique, and switching the first video buffer queue for the access request to a second video buffer queue corresponding to the second rendering technique, the first video buffer queue and the second video buffer queue being concurrent.Type: ApplicationFiled: November 16, 2017Publication date: May 24, 2018Inventors: Li Zeng, Aihua Zhao, Jiangwei Li
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Patent number: 9963516Abstract: Disclosed are methods, compositions and uses of high concentration antibody or immunoglobulin formulations for subcutaneous, intramuscular, transdermal or other local (regional) administration, in a volume of than 3, less than 2 or less than 1 ml. Preferably, the formulation contains a high concentration formulation (HCF) buffer comprising phosphate, citrate, polysorbate 80 and mannitol at a pH of about 5.2. The formulation more preferably comprises at least 100, 150, 200, 250 mg/ml or 300 mg/ml of antibody. The methods for preparing the high concentration formulation include ultrafiltration and diafiltration to concentrate the antibody and exchange the medium for HCF buffer. Other embodiments concern use of non-G1m1 (nG1m1) allotype antibodies, such as G1m3 and/or a nG1m1,2 antibodies. The nG1m1 antibodies show decreased immunogenicity compared to G1m1 antibodies.Type: GrantFiled: May 11, 2017Date of Patent: May 8, 2018Assignee: Immunomedics, Inc.Inventors: Li Zeng, Rohini Mitra, Edmund A. Rossi, Hans J. Hansen, David M. Goldenberg
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Patent number: 9954644Abstract: Embodiments of the present invention disclose an Ethernet data processing method, an Ethernet physical layer chip, and Ethernet equipment. Applicable to data processing at a transmit end, the method includes: performing line coding on data from a media access control layer, so as to obtain serial data code blocks; performing forward error correction FEC coding on the serial data code blocks, so as to obtain FEC frames, which specifically includes: inserting Y check bits every X consecutive data bits, where the Y check bits are generated when FEC coding is performed on the X consecutive data bits; and distributing, at a distribution granularity of a bits, the FEC frames successively to N virtual channels, where a and N are both positive integers, and a is less than a quantity of bits included in one FEC frame.Type: GrantFiled: January 4, 2013Date of Patent: April 24, 2018Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Wei Su, Li Zeng, Kai Cui
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Publication number: 20180054273Abstract: An optical transceiver and a network device are provided. The optical transceiver includes a common end module and two data submodules. The common end module includes a multi-carrier light source, a wavelength division multiplexer, a wavelength division demultiplexer, an external optical interface, and two first beam splitters. Each data submodule includes a second beam splitter, an optical/electrical signal modulator, and an optical receiver. According to the optical transceiver and the network device, a high-capacity optical transceiver with a single optical interface can be implemented, so that optical interface management complexity is reduced, and a fiber resource is reduced.Type: ApplicationFiled: October 13, 2017Publication date: February 22, 2018Inventors: Jiangwei Man, Xiaolu Song, Li Zeng
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Publication number: 20180033503Abstract: A nuclear instrumentation system and method for locating the same are disclosed. The nuclear instrumentation system includes a source range channel, an intermediate range channel and a power range channel, wherein each channel includes one detector installed around the pressure vessel, the detectors of the power range channel and the intermediate range channel both include several fission chambers, the detectors of the intermediate range channel and power range channel share several fission chambers. Some detectors employ fission chambers, so the Gamma radiation resistance property, anti-noise property and anti-electromagnetic interference property are improved. Sharing fission chambers reduces the number of detectors to be installed, thus relieving the workload of the installation and positioning of the follow-up detector. Further, the present application increases the number of some channels, which increases the redundancy, improves system reliability.Type: ApplicationFiled: November 12, 2015Publication date: February 1, 2018Inventors: Tianyou LI, Li ZENG, Rui ZHANG, Hao YANG, Xing WANG, Yajie TIAN, Ji SHI, Wei WANG, Huaqing PENG, Weihua CHEN, Weijun HUANG, Hui JIANG
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Publication number: 20170286250Abstract: A signal compensation method and device, where the method includes receiving a signal sequence suffering from intersymbol interference (ISI), setting a first filtering coefficient to perform filter compensation on the received signal sequence to obtain a first compensation signal sequence, setting a balance filtering coefficient to perform filter compensation on the first compensation signal sequence to obtain a balance compensation result, where the balance filtering coefficient is obtained by adjusting, according to a first compensation error, a balance filtering coefficient set last time, performing sequence estimation on the balance compensation result and outputting the balance compensation result, where the first compensation error adjusts the balance filtering coefficient set to perform filter compensation on the first compensation signal sequence in an iterative manner, thereby effectively compensating for the signal sequence suffering from the ISI, and improving performance of an optical fiber communType: ApplicationFiled: June 23, 2017Publication date: October 5, 2017Inventors: Wei Chen, Jiangwei Man, Li Zeng
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Publication number: 20170260287Abstract: Disclosed are methods, compositions and uses of high concentration antibody or immunoglobulin formulations for subcutaneous, intramuscular, transdermal or other local (regional) administration, in a volume of than 3, less than 2 or less than 1 ml. Preferably, the formulation contains a high concentration formulation (HCF) buffer comprising phosphate, citrate, polysorbate 80 and mannitol at a pH of about 5.2. The formulation more preferably comprises at least 100, 150, 200, 250 mg/ml or 300 mg/ml of antibody. The methods for preparing the high concentration formulation include ultrafiltration and diafiltration to concentrate the antibody and exchange the medium for HCF buffer. Other embodiments concern use of non-G1m1 (nG1m1) allotype antibodies, such as G1m3 and/or a nG1m1,2 antibodies. The nG1m1 antibodies show decreased immunogenicity compared to G1m1 antibodies.Type: ApplicationFiled: May 11, 2017Publication date: September 14, 2017Inventors: Li Zeng, Rohini Mitra, Edmund A. Rossi, Hans J. Hansen, David M. Goldenberg
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Patent number: 9759867Abstract: An optical apparatus includes a first beam combining device arranged to receive a first optical beam having a first wavelength at a first location and a second optical beam output having a second wavelength at a second location. The second optical beam has a polarization that is substantially orthogonal to a polarization of the first optical beam. The first beam combining device configured to output a first combined beam that comprises a combination of the first optical beam and the second optical beam. An optical element is arranged to receive the first combined beam and a second combined beam and to transmit an output beam that includes a combination of the first combined beam and the second combined beam.Type: GrantFiled: February 1, 2016Date of Patent: September 12, 2017Assignee: Futurewei Technologies, Inc.Inventors: Qi Deng, Yaohui Xie, Li Zeng, Xiaolu Song
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Patent number: 9735540Abstract: A laser includes a substrate and a resonant cavity. In addition to an active gain region, a first phase shift region, an optical branching region, and N reflective mode selection regions, the resonant cavity further includes a highly reflective surface, where a reflectivity of the highly reflective surface is greater than reflectivities of the N reflective mode selection regions, so that laser beams are output from the N reflective mode selection regions. Because the laser naturally includes at least two reflective mode selection regions, at least two laser beams are output. According to the laser provided by the embodiments of the present invention, one laser can output two laser beams or even multiple laser beams; therefore, laser beam generation efficiency is high and average costs for generating a single laser beam are accordingly reduced.Type: GrantFiled: June 9, 2016Date of Patent: August 15, 2017Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xi Chen, Bo Chen, Li Zeng, Lei Gao
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Patent number: 9683050Abstract: Disclosed are methods, compositions and uses of high concentration antibody or immunoglobulin formulations for subcutaneous, intramuscular, transdermal or other local (regional) administration, in a volume of than 3, less than 2 or less than 1 ml. Preferably, the formulation contains a high concentration formulation (HCF) buffer comprising phosphate, citrate, polysorbate 80 and mannitol at a pH of about 5.2. The formulation more preferably comprises at least 100, 150, 200, 250 mg/ml or 300 mg/ml of antibody. The methods for preparing the high concentration formulation include ultrafiltration and diafiltration to concentrate the antibody and exchange the medium for HCF buffer. Other embodiments concern use of non-G1m1 (nG1m1) allotype antibodies, such as G1m3 and/or a nG1m1,2 antibodies. The nG1m1 antibodies show decreased immunogenicity compared to G1m1 antibodies.Type: GrantFiled: October 6, 2015Date of Patent: June 20, 2017Assignee: Immunomedics, Inc.Inventors: Li Zeng, Rohini Mitra, Edmund A. Rossi, Hans J. Hansen, David M. Goldenberg
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Patent number: 9468689Abstract: Disclosed are methods, compositions and uses of high concentration antibody or immunoglobulin formulations for subcutaneous, intramuscular, transdermal or other local (regional) administration, in a volume of than 3, less than 2 or less than 1 ml. Preferably, the formulation contains a high concentration formulation (HCF) buffer comprising phosphate, citrate, polysorbate 80 and mannitol at a pH of about 5.2. The formulation more preferably comprises at least 100, 150, 200, 250 mg/ml or 300 mg/ml of antibody. The methods for preparing the high concentration formulation include ultrafiltration and diafiltration to concentrate the antibody and exchange the medium for HCF buffer. Other embodiments concern use of non-G1m1 (nG1m1) allotype antibodies, such as G1m3 and/or a nG1m1,2 antibodies. The nG1m1 antibodies show decreased immunogenicity compared to G1m1 antibodies.Type: GrantFiled: December 18, 2013Date of Patent: October 18, 2016Assignee: Immunomedics, Inc.Inventors: Li Zeng, Rohini Mitra, Edmund A. Rossi, Hans J. Hansen, David M. Goldenberg
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Publication number: 20160294158Abstract: A laser includes a substrate and a resonant cavity. In addition to an active gain region, a first phase shift region, an optical branching region, and N reflective mode selection regions, the resonant cavity further includes a highly reflective surface, where a reflectivity of the highly reflective surface is greater than reflectivities of the N reflective mode selection regions, so that laser beams are output from the N reflective mode selection regions. Because the laser naturally includes at least two reflective mode selection regions, at least two laser beams are output. According to the laser provided by the embodiments of the present invention, one laser can output two laser beams or even multiple laser beams; therefore, laser beam generation efficiency is high and average costs for generating a single laser beam are accordingly reduced.Type: ApplicationFiled: June 9, 2016Publication date: October 6, 2016Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xi CHEN, Bo Chen, Li Zeng, Lei Gao
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Publication number: 20160147018Abstract: An optical apparatus includes a first beam combining device arranged to receive a first optical beam having a first wavelength at a first location and a second optical beam output having a second wavelength at a second location. The second optical beam has a polarization that is substantially orthogonal to a polarization of the first optical beam. The first beam combining device configured to output a first combined beam that comprises a combination of the first optical beam and the second optical beam. An optical element is arranged to receive the first combined beam and a second combined beam and to transmit an output beam that includes a combination of the first combined beam and the second combined beam.Type: ApplicationFiled: February 1, 2016Publication date: May 26, 2016Inventors: Qi Deng, Yaohui Xie, Li Zeng, Xiaolu Song
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Publication number: 20160094311Abstract: Embodiments of the present invention disclose an Ethernet data processing method, an Ethernet physical layer chip, and Ethernet equipment. Applicable to data processing at a transmit end, the method includes: performing line coding on data from a media access control layer, so as to obtain serial data code blocks; performing forward error correction FEC coding on the serial data code blocks, so as to obtain FEC frames, which specifically includes: inserting Y check bits every X consecutive data bits, where the Y check bits are generated when FEC coding is performed on the X consecutive data bits; and distributing, at a distribution granularity of a bits, the FEC frames successively to N virtual channels, where a and N are both positive integers, and a is less than a quantity of bits included in one FEC frame.Type: ApplicationFiled: January 4, 2013Publication date: March 31, 2016Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Wei SU, Li ZENG, Kai CUI
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Patent number: 9294217Abstract: Embodiments of the present invention relate to the optical communication field and disclose an optical signal multiplexing method and an optical multiplexer. The method provided in the present invention includes: adjusting polarization states of two of four optical signals to be multiplexed, and preferably, mutually orthogonal to, the polarization states of the remaining two optical signals; combining one optical signal in the adjusted polarization state with one optical signal in the unadjusted polarization state into one optical signal through polarization multiplexing; and combining the two optical signals obtained through polarization multiplexing into one optical signal.Type: GrantFiled: January 14, 2014Date of Patent: March 22, 2016Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xiaolu Song, Wenbin Jiang, Qi Deng, Li Zeng
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Publication number: 20160036548Abstract: The present invention relates to a multicarrier-based optical transmit subsystem and a method for generating an optical signal. The multicarrier-based optical transmit subsystem includes: a comb-shaped light source apparatus, configured to generate and output polychromatic light; a microring group, including multiple microring modulators, where each of the multiple microring modulators includes an input end and a download end, the input end of each of the multiple microring modulators is connected to the comb-shaped light source apparatus, and the multiple microring modulators each are configured to filter and modulate the polychromatic light, to obtain optical signals with different frequencies, and output the optical signals by using respective download ends of the multiple microring modulators; and a public waveguide, connected to the download ends of the multiple microring modulators, and configured to multiplex the optical signals with different frequencies.Type: ApplicationFiled: October 9, 2015Publication date: February 4, 2016Inventors: Xiaolu Song, Li Zeng
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Patent number: D843665Type: GrantFiled: December 18, 2017Date of Patent: March 19, 2019Assignee: Shenzhen ChuangxinShangpin Technology Co., Ltd.Inventor: Li Zeng