Patents by Inventor Zhiwen Liu

Zhiwen Liu 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).

  • Patent number: 12144491
    Abstract: A spectrally encoded fluorescence imaging system includes a multi-wavelength excitation light source emitting excitation light for illuminating a sample, optical components for introducing spectral encoding to focus different wavelengths of the excitation light at different positions in the sample to generate fluorescence at different, spatial positions, and band-shifting florescence imaging probes exhibiting excitation-dependent emission band, causing the fluorescence generated at different spatial positions to exhibit different band shifts, such that image information is encoded in the band-shifted fluorescence spectrums for parallel detection by a spectrometer or arrayed detectors operable to resolve different wavelengths.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: November 19, 2024
    Assignee: The Penn State Research Foundation
    Inventors: Zhiwen Liu, Jian Yang, Yizhu Chen, Dingbowen Wang
  • Patent number: 12120430
    Abstract: An imaging system includes a scattering assembly with a scattering medium positioned a first distance from an object to be imaged. The scattering medium includes a plurality of particles suspended in a suspension medium and at least one field source generating an electromagnetic field to manipulate an orientation, concentration, spatial distribution, and/or other properties of the plurality of particles. The imaging system further includes a detector including a plurality of detector elements positioned a second distance from the scattering medium and an image processing system configured to reconstruct an image of the object from an object image signal detected by the detector using object light scattered by the scattering medium and incident on the detector.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: October 15, 2024
    Assignee: The Penn State Research Foundation
    Inventors: Zhiwen Liu, Christine D. Keating, Cheng-Yu Wang, Jennifer R. Miller
  • Patent number: 12105774
    Abstract: A method for generating traffic demand data of a data center network includes: acquiring traffic demand samples each including a source address, a destination address, a flow interval, and a flow size; acquiring a first interval number by performing equal-frequency binning discretization processing according to the flow interval and acquiring a second interval number by performing equal-frequency binning discretization processing according to the flow size; determining a traffic demand subset according to the source address and the destination address, and acquiring a first parameter matrix and a second parameter matrix by training a latent Dirichlet allocation probability topic model according to the traffic demand subset; and generating the traffic demand data according to the first interval number, the second interval number, the first parameter matrix, and the second parameter matrix.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: October 1, 2024
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Yong Cui, Zhiwen Liu, Mowei Wang
  • Publication number: 20240196101
    Abstract: An image generation method and an electronic device, and relates to the field of image processing technologies. The method includes: obtaining a first image, the first image including M×N pixel points, where M and N are positive integers; determining a light source brightness function; performing, based on a preset parameter, a time-domain integral operation on the light source brightness function for M times, to obtain M brightness values; generating a second image based on the M brightness values, the second image being a stripe image having M×N pixel points, where brightness values of pixel points in M rows in the second image respectively correspond to the M brightness values; and fusing the first image and the second image into a flicker banding image.
    Type: Application
    Filed: January 28, 2024
    Publication date: June 13, 2024
    Applicant: VIVO MOBILE COMMUNICATION CO., LTD.
    Inventor: Zhiwen LIU
  • Patent number: 11941023
    Abstract: Provided are a system and method for implementing an incremental data comparison. The system includes: a synchronization T environment, a simulation F environment, a simulation tool, a memory database, a comparison tool and a result database. The T environment includes a synchronization environment core application, a traditional commercial database, an incremental synchronization tool and a synchronization environment distributed database. The F environment includes a simulation environment core application and a simulation environment distributed database. The simulation tool is configured to play back a T environment service and an F environment service. The memory database is configured to store a mapping relationship between message values of the T and F environment. The comparison tool is configured to compare data in the T and F environment according to the mapping relationship between the message values.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: March 26, 2024
    Assignee: ZTE CORPORATION
    Inventors: Jianhua Mai, Zhiwen Liu, Yan Ding, Longbo Guo, Peng Zhang, Zhenhua Xu
  • Publication number: 20240004730
    Abstract: An event processing method provided by an embodiment of the present disclosure determines M events, where each event is associated with a priority and a minimum working time, M is an integer greater than 1, and the minimum working time of each event is less than duration of a time slice; processes a first event within a first time slice, where the first event is an event having a highest priority among the M events; and in the case that processing duration of the first event reaches the minimum working time of the first event, determines to continue to process the first event within the first time slice, or determines to interrupt processing of the first event and processes a second event within the first time slice.
    Type: Application
    Filed: October 27, 2021
    Publication date: January 4, 2024
    Applicant: Spreadtrum Communications (Shanghai) Co., Ltd.
    Inventors: Yanping WANG, Zhiwen LIU, Ling ZHOU, Wei LU
  • Publication number: 20230421468
    Abstract: A method for generating traffic demand data of a data center network includes: acquiring traffic demand samples each including a source address, a destination address, a flow interval, and a flow size; acquiring a first interval number by performing equal-frequency binning discretization processing according to the flow interval and acquiring a second interval number by performing equal-frequency binning discretization processing according to the flow size; determining a traffic demand subset according to the source address and the destination address, and acquiring a first parameter matrix and a second parameter matrix by training a latent Dirichlet allocation probability topic model according to the traffic demand subset; and generating the traffic demand data according to the first interval number, the second interval number, the first parameter matrix, and the second parameter matrix.
    Type: Application
    Filed: April 28, 2023
    Publication date: December 28, 2023
    Inventors: Yong CUI, Zhiwen LIU, Mowei WANG
  • Publication number: 20230173115
    Abstract: Embodiments of systems and methods for fluid or structure surface disinfection using a series of pulsed lasers are disclosed. In an example, a system for fluid or structure surface disinfection includes a laser source, an optical module, and a controller coupled to the optical module. The laser source is configured to generate a laser stream. The optical module is configured to shape the laser stream and direct the laser stream toward a portion of a surface of a structure. The controller is coupled to the optical module and configured to control the optical module to direct the laser stream toward the portion of the surface of the structure.
    Type: Application
    Filed: August 2, 2022
    Publication date: June 8, 2023
    Applicant: Gauss Lasers Tech (Shanghai) Co., Ltd.
    Inventors: Ming Wu, Hongyan Ren, Shiyun Zhou, Yuxin Leng, Zhiwen Liu, Jiashun Liu, Tingxia Li, Yiming Cai, Tongxin Li, Shian Zhou
  • Publication number: 20230178954
    Abstract: An optical amplification system that includes a combiner and an active fiber. The combiner is configured to receive and combine an input signal and an excitation signal. The active fiber is configured to receive the input signal and the excitation signal from the combiner and generate an amplified input signal. The active fiber is directly coupled to the combiner.
    Type: Application
    Filed: August 2, 2022
    Publication date: June 8, 2023
    Applicant: Gauss Lasers Tech (Shanghai) Co., Ltd.
    Inventors: Hongyan Ren, Ming Wu, Shiyun Zhou, Yuxin Leng, Zhiwen Liu, Jiashun Liu, Tingxia Li, Yiming Cai, Tongxin Li, Shian Zhou
  • Publication number: 20230067015
    Abstract: A method for antibacterial susceptibility testing includes preparing a set of two or more samples of a plurality of bacterial cells from a patient; adding a different amount of a selected drug to each sample; illuminating at least a portion of a sample using a coherent illumination source; capturing a series of speckle images over time of at least a portion of the illuminated sample; and determining an inhibition status of the sample using a machine-learning classifier applied to the series of speckle images. The steps of illuminating the sample, capturing a series of images, and determining an inhibition status are repeated for each sample of the set of two or more samples. The method may include transforming the series of speckle images to a frequency series of speckle images; and determining the inhibition status of the sample uses the machine-learning classifier applied to the frequency series of speckle images.
    Type: Application
    Filed: February 3, 2021
    Publication date: March 2, 2023
    Inventors: Seyedehaida EBRAHIMI, Chen ZHOU, Jasna KOVAC, Zhiwen LIU, Keren ZHOU
  • Publication number: 20230004465
    Abstract: A distributed database system, a data disaster backup exercise method and a non-transitory computer-readable storage medium are disclosed. The distributed database system may include a local computer room (110) and an offsite computer room (120), where the local computer room (110) includes a local management node (111) and a local database cluster (112), the offsite computer room (120) includes an offsite management node (121), an offsite exercise database cluster (123) and an offsite synchronization database cluster (122); where the local database cluster (112) and the offsite synchronization database cluster (122) are both connected with the local management node (111); the offsite exercise database cluster (123) is configured for: establishing a first connection with the offsite management node (121); and receiving a test service sent by a service layer.
    Type: Application
    Filed: November 17, 2020
    Publication date: January 5, 2023
    Inventors: Peng ZHANG, Ke YAN, Yan DING, Zhiwen LIU
  • Publication number: 20220385798
    Abstract: An imaging system includes a scattering assembly with a scattering medium positioned a first distance from an object to be imaged. The scattering medium includes a plurality of particles suspended in a suspension medium and at least one field source generating an electromagnetic field to manipulate an orientation, concentration, spatial distribution, and/or other properties of the plurality of particles. The imaging system further includes a detector including a plurality of detector elements positioned a second distance from the scattering medium and an image processing system configured to reconstruct an image of the object from an object image signal detected by the detector using object light scattered by the scattering medium and incident on the detector.
    Type: Application
    Filed: August 21, 2020
    Publication date: December 1, 2022
    Inventors: Zhiwen Liu, Christine D. Keating, Cheng-Yu Wang, Jennifer R. Miller
  • Publication number: 20220245132
    Abstract: A transaction monitoring method for a distributed database, apparatus, system and storage medium are disclosed. The transaction monitoring method for a distributed database includes: after receiving an execution request for a transaction, recording transaction indication information carried in the execution request for the transaction; and, performing transaction monitoring according to the transaction indication information.
    Type: Application
    Filed: March 30, 2020
    Publication date: August 4, 2022
    Inventors: Yayun ZHOU, Pin LIN, Yan DING, Zhiwen LIU
  • Publication number: 20220245169
    Abstract: Provided are a system and method for implementing an incremental data comparison. The system includes: a synchronization T environment, a simulation F environment, a simulation tool, a memory database, a comparison tool and a result database. The T environment includes a synchronization environment core application, a traditional commercial database, an incremental synchronization tool and a synchronization environment distributed database. The F environment includes a simulation environment core application and a simulation environment distributed database. The simulation tool is configured to play back a T environment service and an F environment service. The memory database is configured to store a mapping relationship between message values of the T and F environment. The comparison tool is configured to compare data in the T and F environment according to the mapping relationship between the message values.
    Type: Application
    Filed: May 22, 2020
    Publication date: August 4, 2022
    Inventors: Jianhua MAI, Zhiwen LIU, Yan DING, Longbo GUO, Peng ZHANG, Zhenhua XU
  • Publication number: 20210357587
    Abstract: An intelligent response method includes: periodically training a response model in a response model library based on a response record and a preset information collection; when receiving conversation data sent by a client terminal, determining and invoking a target response model in the response model library; and generating a response message for the conversation data by using the target response model, feeding back the response message to the client terminal, and adding the conversation data and the response message to the response record.
    Type: Application
    Filed: August 22, 2018
    Publication date: November 18, 2021
    Inventor: Zhiwen LIU
  • Publication number: 20210228066
    Abstract: A spectrally encoded fluorescence imaging system includes a multi-wavelength excitation light source emitting excitation light for illuminating a sample, optical components for introducing spectral encoding to focus different wavelengths of the excitation light at different positions in the sample to generate fluorescence at different, spatial positions, and band-shifting florescence imaging probes exhibiting excitation-dependent emission band, causing the fluorescence generated at different spatial positions to exhibit different band shifts, such that image information is encoded in the band-shifted fluorescence spectrums for parallel detection by a spectrometer or arrayed detectors operable to resolve different wavelengths.
    Type: Application
    Filed: July 30, 2019
    Publication date: July 29, 2021
    Inventors: Zhiwen Liu, Jian Yang, Yizhu Chen, Dingbowen Wang
  • Patent number: 10718665
    Abstract: A self-referencing mobile-compatible spectrophotometric system, including at least one light source, at least one spectral detection unit, and at least one reference sample. The system is configured to apply light from the at least one light source to a sample and receive a reflected light from the sample, and apply light to the at least one reference sample, and receive a reference reflected light from the at least one reference sample.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: July 21, 2020
    Assignee: ATOPIX, INC.
    Inventors: Perry S. Edwards, Zhiwen Liu, Victor Bucklew, Baigang Zhang
  • Patent number: 10689463
    Abstract: Disclosed are a Fuc3S4S substituted oligoglycosaminoglycan with a weight-average molecular weight (Mw) of about 4.5-9 kD, a pharmaceutical composition containing the Fuc3S4S substituted oligoglycosaminoglycan, a preparation method thereof and a use thereof in preparing medicines for preventing and/or treating thrombotic diseases.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: June 23, 2020
    Assignee: JIUZHITANG CO., LTD.
    Inventors: Jinhua Zhao, Jinxing He, Mingyi Wu, Zhiwen Liu, Na Gao, Longyan Zhao, Zi Li, Feng Lu, Li Xu, Chuang Xiao, Lian Yang, Jun Chen, Lutan Zhou, Wenlie Peng, Jikai Liu
  • Publication number: 20190250035
    Abstract: A self-referencing mobile-compatible spectrophotometric system, including at least one light source, at least one spectral detection unit, and at least one reference sample. The system is configured to apply light from the at least one light source to a sample and receive a reflected light from the sample, and apply light to the at least one reference sample, and receive a reference reflected light from the at least one reference sample.
    Type: Application
    Filed: October 18, 2017
    Publication date: August 15, 2019
    Inventors: Perry S. EDWARDS, Zhiwen LIU, Victor BUCKLEW, Baigang ZHANG
  • Patent number: 10374376
    Abstract: A divided pulse nonlinear optical source may be generated by combining nonlinear wave generation techniques with pulse division that can divide a parent pulse into N divided pulses, each divided pulse separate temporally. The N divided pulses can be passed into a nonlinear optical medium to generate an output. The output can include at least one output pulse for each divided pulse. The center wavelengths of each output pulse can be tuned so that each may have a center wavelength that is the same as, or differs from, each other output pulse. In some embodiments, the output pulses may be combined to generate the output. The output can be power scalable and wavelength tunable.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: August 6, 2019
    Assignees: The Penn State Research Foundation, Atoptix, Inc.
    Inventors: Zhiwen Liu, Victor Bucklew, Perry Edwards, Chenji Zhang