Patents by Inventor Yongwei Zhang
Yongwei Zhang 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: 10909319Abstract: A method, an apparatus and an electronic device for performing entity linking, and a non-transitory computer-readable recording medium are provided. The method includes constructing training data including a plurality of sets of labeled data using an existing unambiguous entity database where unambiguous entities corresponding to respective entity words are stored, each set of the labeled data including a text having an entity word and an unambiguous entity linked with the entity word; training an unambiguous entity recognition model whose output is a matching probability between an entity word in a text and an unambiguous entity using the training data; and inputting a text having an entity word to be recognized into the unambiguous entity recognition model, and determining an unambiguous entity linked with the entity word to be recognized based on an output result of the unambiguous entity recognition model.Type: GrantFiled: January 8, 2019Date of Patent: February 2, 2021Assignee: Ricoh Company, Ltd.Inventors: Lei Ding, Yixuan Tong, Bin Dong, Shanshan Jiang, Yongwei Zhang
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Publication number: 20210027178Abstract: A recommendation method and a recommendation apparatus based on deep reinforcement learning, and a non-transitory computer-readable recording medium are provided.Type: ApplicationFiled: July 21, 2020Publication date: January 28, 2021Applicant: Ricoh Company, Ltd.Inventors: Lei DING, Yixuan TONG, Bin DONG, Shanshan JIANG, Yongwei ZHANG
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Publication number: 20210003666Abstract: A method and apparatus for generating a NLFM signal in real time, and a computer storage medium are disclosed, including: determining a signal parameter of a signal according to a system parameter, the signal parameter includes: a signal bandwidth, a signal pulse width and a PSLR; determining a power spectrum density function according to PSLR; calculating the power spectrum density function to obtain a group delay vector; calculating a frequency axial vector according to a system sampling rate; calculating a time axial vector according to the signal pulse width; performing linear interpolation calculation on the group delay vector to obtain an instantaneous frequency vector; integrating the instantaneous frequency vector to obtain a phase vector; determining a signal time domain discrete vector; and generating a digital signal according to the signal time domain discrete vector, and performing digital-to-analog conversion on the digital signal to obtain the NLFM signal.Type: ApplicationFiled: March 16, 2020Publication date: January 7, 2021Inventors: Yu WANG, Kaiyu LIU, Wei WANG, Guodong JIN, Yu SHA, Yunkai DENG, Dacheng LIU, Yajun LONG, Yongwei ZHANG
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Publication number: 20190346556Abstract: Provided are a method and an apparatus for range ambiguity suppression based on orthogonal nonlinear frequency modulation (NLFM) waveforms. The method includes that: according to transmitted orthogonal NLFM signals, a waveform sequence of the transmitted signals corresponding to an obtained echo signal is determined; a set of range matched filters is constructed according to the waveform sequence and the orthogonal NLFM signals; range compression is performed on the echo signal by using the set of range matched filters to obtain range-compressed data; and synthetic aperture radar (SAR) imaging is performed according to the range-compressed data, to obtain an imaging result, and the imaging result is outputted. A non-transitory computer-readable storage medium is also provided.Type: ApplicationFiled: February 25, 2019Publication date: November 14, 2019Inventors: Yu WANG, Guodong JIN, Yunkai DENG, Wei WANG, Yongwei ZHANG, Kaiyu LIU
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Publication number: 20190251164Abstract: A method, an apparatus and an electronic device for performing entity linking, and a non-transitory computer-readable recording medium are provided. The method includes constructing training data including a plurality of sets of labeled data using an existing unambiguous entity database where unambiguous entities corresponding to respective entity words are stored, each set of the labeled data including a text having an entity word and an unambiguous entity linked with the entity word; training an unambiguous entity recognition model whose output is a matching probability between an entity word in a text and an unambiguous entity using the training data; and inputting a text having an entity word to be recognized into the unambiguous entity recognition model, and determining an unambiguous entity linked with the entity word to be recognized based on an output result of the unambiguous entity recognition model.Type: ApplicationFiled: January 8, 2019Publication date: August 15, 2019Applicant: Ricoh Company, Ltd.Inventors: Lei DING, Yixuan TONG, Bin DONG, Shanshan JIANG, Yongwei ZHANG
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Patent number: 10243265Abstract: An antenna array (106) which in use emits radiation in two respectively orthogonally polarised directions, the array including a plurality of elements, the elements including at least one element of a first type and at least four elements of a second type wherein the element of the first type comprises part of two balanced feeds with two elements of the second type and the element of the first type is capacitively coupled to two further elements of the second type, wherein the elements used to produce radiation in a first direction lie in a first plane (104), the elements used to produce radiation in a second direction lie in a second plane (102), and the first and second planes are spaced apart, and the element of the first type includes two portions, one of which lies in the first plane and one of which lies in the second plane.Type: GrantFiled: August 7, 2014Date of Patent: March 26, 2019Assignee: The University of ManchesterInventors: Anthony Keith Brown, Yongwei Zhang
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Publication number: 20180341863Abstract: Knowledge graph processing method and device are disclosed. The method includes steps of obtaining an entity set containing a first entity, a second entity, and relation information; acquiring text information and image information related to the first entity and the second entity; generating a first structural information vector of the first entity and a second structural information vector of the second entity, and creating a first text information vector of the first entity, a first image information vector of the first entity, a second text information vector of the second entity, and a second image information vector of the second entity; and building a joint loss function so as to attain a first target vector of the first entity, a second target vector of the second entity, and a target relation vector of the relation information between the first entity and the second entity.Type: ApplicationFiled: March 13, 2018Publication date: November 29, 2018Applicant: Ricoh Company, Ltd.Inventors: Lei Ding, Yixuan Tong, Bin Dong, Shanshan Jiang, Yongwei Zhang
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Publication number: 20180219301Abstract: The invention provides an antenna array including an array of unit cells, each unit cell including two annular elements of a first type and two annular elements of a second type wherein in each unit cell: the elements of the first type comprise a balanced feed to produce radiation in a first polarisation direction, the elements of the second type comprise a balanced feed to produce radiation in a second polarisation direction, and each element of the first type is capacitively coupled to a further element of the first type located in an adjacent unit cell, and each element of the second type is capacitively coupled to a further element of the second type located in an adjacent unit cell.Type: ApplicationFiled: July 28, 2016Publication date: August 2, 2018Inventors: Anthony Keith BROWN, Yongwei ZHANG
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Publication number: 20180180567Abstract: Provided is a microwell electrode, comprising one or more first electrodes (301); one or more second electrodes (303) each arranged opposite to one first electrode (301), wherein a channel (601) is provided between each first electrode and the second electrode opposite thereto, and the channel (601) has at least one end in communication with a chamber; and one or more guiding electrodes (501) located in the chamber (401). The microwell electrode electrode can sensitively detect a signal and improve the read length of a sequencer greatly. The invention further relates to a method for manufacturing the micro-porous electrode, a microwell electrode array, a sensor chip, a sequencing system, and a method for analysis of a chemical substance and a nucleic acid molecule based on the microwell electrode.Type: ApplicationFiled: June 23, 2016Publication date: June 28, 2018Inventors: Handong LI, Jianxun LIN, Quanxin YUN, Shaohua XIANG, Radoje DRMANAC, Snezana DRMANAC, Yongwei ZHANG
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Publication number: 20160190683Abstract: An antenna array (106) which in use emits radiation in two respectively orthogonally polarised directions, the array including a plurality of elements, the elements including at least one element of a first type and at least four elements of a second type wherein the element of the first type comprises part of two balanced feeds with two elements of the second type and the element of the first type is capacitively coupled to two further elements of the second type, wherein the elements used to produce radiation in a first direction lie in a first plane (104), the elements used to produce radiation in a second direction lie in a second plane (102), and the first and second planes are spaced apart, and the element of the first type includes two portions, one of which lies in the first plane and one of which lies in the second plane.Type: ApplicationFiled: August 7, 2014Publication date: June 30, 2016Applicant: The University of ManchesterInventors: Anthony Keith Brown, Yongwei Zhang
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Patent number: 8947312Abstract: An antenna array including a plurality of elements, the elements including at least one element of a first type and at least four elements of a second type wherein the element of the first type comprises part of two balanced feeds with two elements of the second type and the element of the first type is capacitively coupled to two further elements of the second type.Type: GrantFiled: March 31, 2010Date of Patent: February 3, 2015Assignee: The University of ManchesterInventors: Anthony Keith Brown, Yongwei Zhang
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Patent number: 8609374Abstract: Methods are disclosed for assembling a plurality of double-stranded DNA fragments into DNA molecules in a single in vitro recombination reaction comprising contacting the plurality of double-stranded DNA fragments with a bacterial extract derived from a RecA deficient bacterial strain so as to assemble the plurality of DNA fragments into DNA molecules.Type: GrantFiled: June 19, 2012Date of Patent: December 17, 2013Assignee: Albert Einstein College of Medicine of Yeshiva UniversityInventors: Winfried Edelmann, Yongwei Zhang
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Publication number: 20130045508Abstract: Methods are disclosed for assembling a plurality of double-stranded DNA fragments into DNA molecules in a single in vitro recombination reaction comprising contacting the plurality of double-stranded DNA fragments with a bacterial extract derived from a RecA deficient bacterial strain so as to assemble the plurality of DNA fragments into DNA molecules.Type: ApplicationFiled: June 19, 2012Publication date: February 21, 2013Inventors: Winfried Edelmann, Yongwei Zhang
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Patent number: 8278100Abstract: The present invention is directed towards lasonolide derivatives, methods of inducing premature chromosome condensation using lasonolide derivatives, and methods of treating disorders, such as cancer, in a subject, the method comprising administering to the subject a lasonolide derivative.Type: GrantFiled: July 28, 2009Date of Patent: October 2, 2012Assignee: The United States of America, as Represented by the Secretary of the Department of Health and Human ServicesInventors: Yves Pommier, Yongwei Zhang, Arun K. Ghosh
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Publication number: 20120146870Abstract: An antenna array including a plurality of elements, the elements including at least one element of a first type and at least four elements of a second type wherein the element of the first type comprises part of two balanced feeds with two elements of the second type and the element of the first type is capacitively coupled to two further elements of the second type.Type: ApplicationFiled: March 31, 2010Publication date: June 14, 2012Applicant: THE UNIVERSITY OF MANCHESTERInventors: Anthony Keith Brown, Yongwei Zhang
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Publication number: 20100041619Abstract: The present invention is directed towards lasonolide derivatives, methods of inducing premature chromosome condensation using lasonolide derivatives, and methods of treating disorders, such as cancer, in a subject, the method comprising administering to the subject a lasonolide derivative.Type: ApplicationFiled: July 28, 2009Publication date: February 18, 2010Inventors: Yves Pommier, Yongwei Zhang, Arun K. Ghosh
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Patent number: 6609841Abstract: A system and method for achieving, while using a multimode diode laser and polarization-maintaining fibers, high signal-to-noise ratio in a magneto optical storage system. In particular, the system splits an incoming main light signal into two orthogonal polarization states, which then propagate over different distances before recombining. By pulsing the laser on and off at a high frequency and choosing an appropriate path difference for the polarization states, which is dependent upon the modulation frequency of the laser, the system eliminates first-order spectral polarization noise arising from a potential error in a key optical component.Type: GrantFiled: March 25, 1999Date of Patent: August 26, 2003Assignee: Seagate Technology LLCInventors: Jeffrey P. Wilde, Alexander Tselikov, Yongwei Zhang
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Patent number: 6587421Abstract: An optical data storage system utilizes optical fibers for transfer of information to and from storage media. The storage media comprises magneto-optical storage disks. The optical fibers are low-birefringence optical fibers. As compared with conventional approaches, a polarization state conveyed by the optical fiber is accurately reproduced with reduced noise. Various noise reduction techniques are provided by substantially decreasing or eliminating spurious reflections (or the effects thereof) at end faces and of an optical fiber. In particular, various techniques, such as index matching, a cover slip method, laser modulation, or angle polishing, may be used to eliminate spurious reflections (or the effects thereof) at the front end face of the optical fiber. Various techniques, such as angle cleaving, index matching, or multi-mode fiber splicing, may be used to eliminate spurious reflections (or the effects thereof) at the back end face of the optical fiber.Type: GrantFiled: March 30, 1999Date of Patent: July 1, 2003Assignee: Seagate Technology LLCInventors: Jeffrey P. Wilde, Alexander Tselikov, Viatcheslav Izraelian, John F. Heanue, Jerry E. Hurst, Jr., George R Gray, Yongwei Zhang
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Patent number: 6538974Abstract: An optical system and method for selective transmission of light between a source of light and set of storage disks along an optical path includes at least one polarization maintaining optical fiber optical fiber. Various noise reduction techniques are provided by substantially decreasing or eliminating spurious reflections (or the effects thereof) at end faces and of an optical fiber. In particular, various techniques, such as index matching, a cover slip method, or laser modulation, may be used to eliminate spurious reflections (or the effects thereof) at the front end face of the optical fiber. Various techniques, such index matching or multi-mode fiber splicing, may be used to eliminate spurious reflections (or the effects thereof) at the end face of the optical fiber.Type: GrantFiled: August 22, 2001Date of Patent: March 25, 2003Assignee: Seagate Technology LLCInventors: Jeffrey P. Wilde, Alexander Tselikov, Yongwei Zhang, George R. Gray
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Publication number: 20020172134Abstract: An optical system and method for selective transmission of light between a source of light and a set of storage disks along an optical path includes at least one polarization maintaining optical fiber optical fiber. Various noise reduction techniques are provided by substantially decreasing or eliminating spurious reflections (or the effects thereof) at end faces and of an optical fiber. In particular, various techniques, such as index matching, a cover slip method, or laser modulation, may be used to eliminate spurious reflections (or the effects thereof) at the front end face of the optical fiber. Various techniques, such index matching or multi-mode fiber splicing, may be used to eliminate spurious reflections (or the effects thereof) at the back end face of the optical fiber.Type: ApplicationFiled: August 22, 2001Publication date: November 21, 2002Inventors: Jeffrey P. Wilde, Alexander Tselikov, Yongwei Zhang, George R. Gray