Patents by Inventor Guoliang Li

Guoliang Li 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).

  • Publication number: 20190264185
    Abstract: The present disclosure relates to a genetically engineered strain with high production of uridine and its construction method and application. The strain was constructed as follows: heterologously expressing pyrimidine nucleoside operon sequence pyrBCAKDFE (SEQ ID NO:1) on the genome of E coli prompted by strong promoter Ptrc to reconstruct the pathway of uridine synthesis; overexpressing the autologous prsA gene coding PRPP synthase by integration of another copy of prsA gene promoted by strong promoter Ptrc on the genome; deficiency of uridine kinase, uridine phosphorylase, ribonucleoside hydrolase, homoserine dehydrogenase I and ornithine carbamoyltransferase. When the bacteria was used for producing uridine, 40-67 g/L uridine could be obtained in a 5 L fermentator after fermentation for 40-70 h using the technical scheme provided by the discloure with the maximum productivity of 0.15-0.25 g uridine/g glucose and 1.
    Type: Application
    Filed: May 12, 2019
    Publication date: August 29, 2019
    Inventors: Xixian Xie, Ning Chen, Heyun Wu, Guoliang Li, Qiang Li, Xiaoguang Fan, Qingyang Xu, Chenglin Zhang, Yanjun Li, Qian Ma
  • Publication number: 20190256772
    Abstract: The present invention provides a compound represented by formula I, which can achieve a self-alignment function. Furthermore, a negative liquid crystal composition comprising such a compound, and a liquid crystal display element or liquid crystal display comprising the compound or liquid crystal composition are provided. The compound represented by formula I contains two hydroxy groups. In an ODF process for a panel, due to an intermolecular force between the hydroxyl groups and the surface of the panel (a glass surface or an ITO electrode surface), the compound is spontaneously aligned, in a standing manner, on the panel glass or transparent ITO electrode substrate, causing liquid crystal molecules similar to the compound represented by formula Ito be vertically aligned, and UV light irradiation, a polymer layer with a rough surface is formed on the substrate by means of polymerization, and achieves the effects of PI insulation and vertical alignment of the liquid crystal molecules.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 22, 2019
    Inventors: Guoliang YUN, Ming LI, Jinsong MENG, Zhian LIANG, Gang WEN, Zhengqiang LI
  • Patent number: 10371898
    Abstract: The present invention includes an optical waveguide with a grating and a method of making the same for increasing the effectiveness of the grating. In one example, the grating is at least partially covered by a liner layer disposed on at least a portion of a grating; and a cover layer disposed on the liner layer, wherein a first material selected for the core and ridges and a second material selected for the liner layer are selected to provide a difference in the index of refraction between the first and second material that is sufficient to provide a contrast therebetween.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: August 6, 2019
    Assignee: Southern Methodist University
    Inventors: Gary A. Evans, Jerome K. Butler, Jay B. Kirk, Ruo-Hua He, Jin Yao, Guoliang Li, Xuezhe Zheng, Ashok V. Krishnamoorthy
  • Patent number: 10351773
    Abstract: Disclosed are liquid crystal compounds of cycloalkyl-containing dibenzofuran derivatives, a preparation method therefor and use thereof. The compounds are as represented by formula I. In the molecular structures of the compounds of formula I provided by the present invention, liquid crystal compounds of cycloalkyl terminal group-containing dibenzofuran derivatives, compared with those having flexible alkyl chains as terminal groups, exhibit better intersolubility, and thus the use of a compound as represented by formula I provided by the present invention can improve the intersolubility of a liquid crystal compound and extend the application range of a liquid crystal mixture, producing an important application value.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: July 16, 2019
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD
    Inventors: Ming Li, Hongru Gao, Fangmiao Zhang, Jingsong Meng, Guoliang Yun, Xing Zhang, Lei Zhao, Jia Deng
  • Publication number: 20190212150
    Abstract: A positioning method and a mobile device, where the method is applied to the mobile device and includes periodically detecting a status of the mobile device, where the status of the mobile device includes a driving state and a walking state, positioning the mobile device using a first positioning algorithm when detecting that a quantity of times that the driving state consecutively occurs reaches M, where the M is an integer greater than one, and positioning the mobile device using a second positioning algorithm when detecting that a quantity of times that the walking state consecutively occurs reaches N, where the N is an integer greater than one. Hence, the status of the mobile device can be more accurately determined by implementing this technical solution to position the mobile device using a positioning algorithm matching an actual status of the mobile device, thereby improving accuracy of a positioning result.
    Type: Application
    Filed: May 20, 2016
    Publication date: July 11, 2019
    Inventors: Chenxi Lu, Yu Wang, Guoliang Li, Xiaohan Chen
  • Patent number: 10345521
    Abstract: A waveguide mode expander couples a smaller optical mode in a semiconductor waveguide to a larger optical mode in an optical fiber. The waveguide mode expander comprises a shoulder and a ridge. In some embodiments, the ridge of the waveguide mode expander has a plurality of stages, the plurality of stages having different widths at a given cross section.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: July 9, 2019
    Assignee: Skorpios Technologies, Inc.
    Inventors: Guoliang Li, Damien Lambert, Nikhil Kumar
  • Publication number: 20190185753
    Abstract: A negative dielectric anisotropy liquid crystal composition having one or more A-R0—B compounds represented by formula I above as a first component, and one or more compounds represented by formula II above as a second component: The liquid crystal composition has a good stability against light and heat, a lower viscosity, a wider refractive index that may be achieved by adjusting the monomer ratio, and a higher clearing point (a very wide service temperature range). The liquid crystal composition has a higher light transmittance, thus allowing a display device to have a higher brightness or an energy saving effect.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 20, 2019
    Inventors: Ke-Lun SHU, Mingxia WANG, Huan LIU, Wenxiao XING, Zhengqiang LI, Yiping WANG, Yongfeng BAO, Guoliang YUN
  • Publication number: 20190185750
    Abstract: Provided are a polymerizable compound represented by formula I and a liquid crystal composition formed by combining such a polymerizable compound with a specific liquid crystal component, particularly a PSVA liquid crystal composition for displays or TV applications and a PSA-IPS liquid crystal composition for an IPS mode; in particular, the polymerizable compound has a faster polymerization rate, and a “material system” formed from the selected polymerizable component and liquid crystal component has a low rotary viscosity and good photoelectric properties, and has a high VHR after (UV) photoradiation, this avoiding the problem of the occurrence of residual images to final displays.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 20, 2019
    Inventors: Jinsong MENG, Guoliang YUN, Zhian LIANG, Xing ZHANG, Ke-Lun SHU, Yongfeng BAO, Ruixiang LIANG, Ming LI
  • Publication number: 20190185751
    Abstract: Provided are a polymerizable compound represented by formula I and a liquid crystal composition comprising the polymerizable compound, particularly a PSVA liquid crystal composition for displays or TV applications and a PSA-IPS liquid crystal composition for an IPS mode; in particular, the polymerizable compound has a faster polymerization rate, and a “material system” formed from the selected polymerizable component and liquid crystal component has a lower rotary viscosity and better photoelectric properties, and has a high VHR after (UV) photoradiation, this avoiding the problem of the occurrence of residual images to final displays.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 20, 2019
    Inventors: Jinsong MENG, Ming LI, Kui WANG, Xing ZHANG, Guoliang YUN, Zhian LIANG, Yiping WANG, Gang WEN
  • Patent number: 10295746
    Abstract: An optical filter for attenuating higher-order modes in an optical waveguide includes a shoulder slab formed of a first material having a first index of refraction and disposed on a second material having a second index of refraction, the first index of refraction being higher than the second index of refraction. The shoulder slab defines a near end having a first width, an intermediate section, adjacent to the first end section, and a far end section, adjacent to the intermediate section and opposite the first end section along a direction of beam propagation. The optical filter also includes a waveguide ridge, formed of the first material and disposed atop the shoulder slab, that traverses the shoulder slab, and is configured to guide light of a fundamental mode along the direction of beam propagation from the near end section to the far end section.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: May 21, 2019
    Assignee: Skorpios Technologies, Inc.
    Inventors: Majid Sodagar, Murtaza Askari, Guoliang Li
  • Patent number: 10297973
    Abstract: A tunable laser has a first mirror, a second mirror, a gain medium, and a directional coupler. The first mirror and the second mirror form an optical resonator. The gain medium and the directional coupler are, at least partially, in an optical path of the optical resonator. The first mirror and the second mirror comprise binary super gratings. Both the first mirror and the second mirror have high reflectivity. The directional coupler provides an output coupler for the tunable laser.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: May 21, 2019
    Assignee: Skorpios Technologies, Inc.
    Inventors: Hacene Chaouch, Guoliang Li
  • Publication number: 20190094464
    Abstract: An optical filter for attenuating higher-order modes in an optical waveguide includes a shoulder slab formed of a first material having a first index of refraction and disposed on a second material having a second index of refraction, the first index of refraction being higher than the second index of refraction. The shoulder slab defines a near end having a first width, an intermediate section, adjacent to the first end section, and a far end section, adjacent to the intermediate section and opposite the first end section along a direction of beam propagation. The optical filter also includes a waveguide ridge, formed of the first material and disposed atop the shoulder slab, that traverses the shoulder slab, and is configured to guide light of a fundamental mode along the direction of beam propagation from the near end section to the far end section.
    Type: Application
    Filed: August 28, 2018
    Publication date: March 28, 2019
    Inventors: Majid Sodagar, Murtaza Askari, Guoliang Li
  • Publication number: 20190068795
    Abstract: Systems, methods, and software can be used to provide reminding information. In some aspect, a special event is determined to occur. In response to determining that the special event occurs, a network type currently used by a device is acquired. Historical network usage information corresponding to the network type is determined. The network type and a traffic usage situation is outputted based on the historical usage information.
    Type: Application
    Filed: October 25, 2018
    Publication date: February 28, 2019
    Inventors: Zijun LI, Jin HUANG, Fen YANG, Guoliang LI
  • Publication number: 20190059822
    Abstract: A heart rate detection method includes: acquiring a plurality of time-domain heart rate detection data; if the time-domain heart rate detection data includes a weak interference signal, extracting a first feature point from the time-domain heart rate detection data, and collecting statistics on feature data of the first feature point to determine time-domain heart rate detection data used in calculating heart rate; if the time-domain heart rate detection data includes a strong interference signal, transforming the time-domain heart rate detection data to a frequency domain to obtain a plurality of frequency-domain heart rate detection data, extracting a second feature point from the frequency-domain heart rate detection data, and collecting statistics on feature data of the second feature point to determine frequency-domain heart rate detection data used in calculating heart rate; and calculating the heart rate based on the time-domain or the frequency-domain heart rate detection data.
    Type: Application
    Filed: October 19, 2018
    Publication date: February 28, 2019
    Inventors: Xinshan WANG, Guoliang LI, Ke YANG, Duan ZENG
  • Patent number: 10209451
    Abstract: A waveguide coupler has a compression region and an expansion region for coupling light between a silicon waveguide and an optical fiber. The compression region receives light from the silicon waveguide and compresses an optical mode of the light. Light is transmitted from the compression region to an expansion region. The expansion region expands the light to have a larger cross section. Light is then transmitted to the optical fiber.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: February 19, 2019
    Assignee: Skorpios Technologies, Inc.
    Inventors: Nikhil Kumar, Guoliang Li, Stephen Krasulick
  • Patent number: 10200142
    Abstract: An optical receiver, used in wavelength-division multiplexing, has multiple photodetectors per channel. The optical receiver comprises a demultiplexer to separate incoming light into different output waveguides, one output waveguide for each channel. A splitter is used in each output waveguide to split each output waveguide into two or more branches. A separate photodetector is coupled with each branch so that two or more photodetectors are used to measure each channel.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: February 5, 2019
    Assignee: Skorpios Technologies, Inc.
    Inventors: Guoliang Li, Murtaza Askari
  • Publication number: 20180364416
    Abstract: A waveguide mode expander couples a smaller optical mode in a semiconductor waveguide to a larger optical mode in an optical fiber. The waveguide mode expander comprises a shoulder and a ridge. In some embodiments, the ridge of the waveguide mode expander has a plurality of stages, the plurality of stages having different widths at a given cross section.
    Type: Application
    Filed: May 15, 2018
    Publication date: December 20, 2018
    Applicant: Skorpios Technologies, Inc.
    Inventors: Guoliang Li, Damien Lambert, Nikhil Kumar
  • Publication number: 20180356596
    Abstract: A waveguide coupler has a compression region and an expansion region for coupling light between a silicon waveguide and an optical fiber. The compression region receives light from the silicon waveguide and compresses an optical mode of the light. Light is transmitted from the compression region to an expansion region. The expansion region expands the light to have a larger cross section. Light is then transmitted to the optical fiber.
    Type: Application
    Filed: March 7, 2018
    Publication date: December 13, 2018
    Inventors: Nikhil Kumar, Guoliang Li, Stephen Krasulick
  • Publication number: 20180348432
    Abstract: A method of fabricating a waveguide mode expander includes providing a substrate including a waveguide, bonding a chiplet including multiple optical material layers in a mounting region adjacent an output end of the waveguide, and selectively removing portions of the chiplet to form tapered stages that successively increase in number and lateral size from a proximal end to a distal end of the chiplet. The first optical material layer supports an input mode substantially the same size as a mode exiting the waveguide. One or more of the overlying layers, when combined with the first layer, support a larger, output optical mode size. Each tapered stage of the mode expander is formed of a portion of a respective layer of the chiplet. The first layer and the tapered stages form a waveguide mode expander that expands an optical mode of light traversing the chiplet.
    Type: Application
    Filed: May 1, 2018
    Publication date: December 6, 2018
    Inventors: Damien Lambert, Guoliang Li, John Zyskind, Stephen B. Krasulick
  • Publication number: 20180338728
    Abstract: A method for eliminating motion interference includes: performing dimensionality reduction on the multi-dimensional acceleration signal to obtain a one-dimensional acceleration signal that represents motion interference; mixing the first signal and the second signal through a plurality of preset coefficients ri respectively, so as to calculate a plurality of mixed signals corresponding to the plurality of preset coefficients; calculating a correlation coefficient between each of the mixed signals and the one-dimensional acceleration signal; obtaining a preset coefficient corresponding to the maximum correlation coefficient among the correlation coefficients and a preset coefficient corresponding to the minimum correlation coefficient among the correlation coefficients; and calculating a signal with motion interference being eliminated from the measurement signal to be processed, according to the first signal, the second signal, the preset coefficient corresponding to the maximum correlation coefficient, and t
    Type: Application
    Filed: July 30, 2018
    Publication date: November 29, 2018
    Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Guoliang LI, Xinshan WANG, Ke YANG, Duan ZENG, Fahai CHEN