Patents by Inventor Lili Ding

Lili Ding 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: 20200143656
    Abstract: Embodiments of this disclosure provide a fall detection method and apparatus. The apparatus acquires information of radar reflection points belonging to a detected object in a predetermined number of consecutive frames, information on a radar reflection point including at least two of information on a position, information on a radial velocity and information on reflection signal strength, of the reflection point; determines whether the detected object has fallen according to a relationship between time and the information on radar reflection points in the predetermined number of consecutive frames.
    Type: Application
    Filed: October 28, 2019
    Publication date: May 7, 2020
    Applicant: Fujitsu Limited
    Inventors: Hongchun LI, Genming DING, Qian ZHAO, Lili XIE, Jun TIAN
  • Publication number: 20200109116
    Abstract: A method for preparing chromium(III) pyridine-2-carboxylate using 2-OP rectification residues, including: subjecting the 2-OP rectification residues to in-situ catalytic pyrolysis and vacuum distillation, room-temperature crystallization and separation, recrystallization and dehydration, alkali-catalyzed hydrolysis, acidification and complexation, and separation, washing and drying to prepare a chromium(III) pyridine-2-carboxylate product, of which a yield is greater than 50% of the weight of the 2-OP rectification residues. The acidification and complexation includes: cooling the aqueous solution containing sodium pyridine-2-carboxylate obtained from the alkali-catalyzed hydrolysis to a temperature below 50° C.; adjusting the aqueous solution to pH 3.0-8.5 with 5-50 wt % dilute H2SO4 or 3-30 wt % dilute HCl followed by batchwise addition of CrCl3, Cr(NO3)3 or Cr2(SO4)3 for complexation at 20-70° C.
    Type: Application
    Filed: June 25, 2019
    Publication date: April 9, 2020
    Inventors: Zhaosheng CAI, Jinghua YU, Pan XU, Jinyu BIAN, Ge DING, Lili SHEN, Xujuan HUANG, Zhonglie YANG, Yun CHEN, Peng XU
  • Patent number: 10604621
    Abstract: A porous ultra-soft ultra-fine denier polyester fiber and preparation method. The modified polyester is spun with a porous spinneret to produce the porous ultra-soft ultra-fine denier polyester fiber, and the spinneret holes on the porous spinneret are arranged in an elliptical arrangement. The porous ultra-soft ultra-fine denier polyester fiber is obtained by metering, extruding, cooling, oiling and high-speed winding the modified polyester chips. The preparation method of modified polyester is as follows: terephthalic acid reacts with ethylene glycol to produce ethylene terephthalate. The modified polyester is obtained by the reaction of terephthalic acid with branched diol. The fiber of the invention has good properties and the deviation rate of fiber density. The deviation rate of fiber density is ?0.5%, the CV value of breaking strength is ?4.0%, the CV value of elongation at break is ?8.0%, the CV value of yarn unevenness is ?2.0%.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: March 31, 2020
    Assignee: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.
    Inventors: Hongwei Fan, Shanshui Wang, Zhujun Ding, Lili Wang, Zangzang Niu, Xiaohua Sun
  • Patent number: 10563495
    Abstract: Disclosed herewith a separation device for performing phase separation on a three-phase liquid. The device includes: a housing; at least one pair of longitudinal baffle plates; a flow channel formed between every pair of longitudinal baffle plates; and collection chambers formed between adjacent pairs of longitudinal baffle plates. Each collection chamber is provided with a transverse baffle plate to separate the collection chamber into a first phase and a second phase collection cells. Each flow channel is provided with multiple lateral baffle plates to separate the flow channel into multiple sub-channels. In the areas of each longitudinal baffle plate where the first phase and second phase collection cells are located respectively, said longitudinal baffle plate is provided with a first and a second phase guiding holes in communication with the first phase and the second collection cells respectively.
    Type: Grant
    Filed: August 15, 2018
    Date of Patent: February 18, 2020
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SINOPEC EXPLORATION & PRODUCTION RESEARCH INSTITUTE
    Inventors: Changchao Hu, Wei Dang, Xiaoxuan Xu, Zhiwei Tang, Lili Wang, Wenjie Tan, Pengyuan Ding, Caixia Bi, Youlin Zheng
  • Patent number: 10499429
    Abstract: A sending node sends an RTS control packet carrying an identifier of a receiving node, so that the receiving node determines a power update value according to an initial transmit power of the RTS control packet and sends a CTS control packet by using the initial transmit power, where the CTS control packet carries an identifier of the sending node and the power update value, a first part of adjacent nodes other than the sending node, if determining that the first part of adjacent nodes are located beyond coverage of an updated power of the receiving node and the sending node, determine a first limited power and perform control packet transmission according to the first limited power; and receiving, by the sending node, the CTS control packet, and sending a data packet by using the updated power.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: December 3, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lili Zhang, Zhiming Ding
  • Patent number: 10489885
    Abstract: An image stitching method includes: obtaining a first and a second images; selecting a first and a second search regions from the first and second images, respectively, the first and second search regions at least partially overlapping with each other along a first direction; dividing each of the first and second search regions into a plurality of equally-sized pixel blocks; moving the first and second images toward each other along the first direction using the pixel blocks as a step size, until each of the first and second search regions has been traversed; after each movement, determining a pixel difference value representing a difference between all overlapping pixel blocks of the first search region and the second search region; determining an optimal block-matching position for the first and second images based on the pixel difference value; and stitching the first and second images according to the optimal block-matching position.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: November 26, 2019
    Assignee: SHANGHAI XIAOYI TECHNOLOGY CO., LTD.
    Inventors: Dajun Ding, Lili Zhao
  • Patent number: 10460487
    Abstract: Methods and apparatus for automatically synthesizing images are disclosed. The methods may include receiving a plurality of input frames with a common background. The methods may also include determining a number of the input frames. The methods may also include selecting, based on the number, a method to detect foregrounds of the input frames. The methods may further include using the selected method to generate an output frame comprising a combination of a plurality of the foregrounds.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: October 29, 2019
    Assignee: SHANGHAI XIAOYI TECHNOLOGY CO., LTD.
    Inventors: Dajun Ding, Lili Zhao
  • Patent number: 10346685
    Abstract: A device includes a memory configured to store instructions and a processor configured to execute the instructions to obtain image data of a region of interest included in an image frame. The processor may also be configured to compare the image data of the region of interest with image data of a background to detect a change in the region of interest. The processor may further be configured to detect the object in image frame based on the detected change.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: July 9, 2019
    Assignee: SHANGHAI XIAOYI TECHNOLOGY CO., LTD.
    Inventors: Dajun Ding, Lili Zhao
  • Publication number: 20190185616
    Abstract: A porous ultra-soft ultra-fine denier polyester fiber and preparation method. The modified polyester is spun with a porous spinneret to produce the porous ultra-soft ultra-fine denier polyester fiber, and the spinneret holes on the porous spinneret are arranged in an elliptical arrangement. The porous ultra-soft ultra-fine denier polyester fiber is obtained by metering, extruding, cooling, oiling and high-speed winding the modified polyester chips. The preparation method of modified polyester is as follows: terephthalic acid reacts with ethylene glycol to produce ethylene terephthalate. The modified polyester is obtained by the reaction of terephthalic acid with branched diol. The fiber of the invention has good properties and the deviation rate of fiber density. The deviation rate of fiber density is ?0.5%, the CV value of breaking strength is ?4.0%, the CV value of elongation at break is ?8.0%, the CV value of yarn unevenness is ?2.0%.
    Type: Application
    Filed: June 26, 2017
    Publication date: June 20, 2019
    Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.
    Inventors: Hongwei FAN, Shanshui WANG, Zhujun DING, Lili WANG, Zangzang NIU, Xiaohua SUN
  • Publication number: 20190178803
    Abstract: A method of measuring concentration of dissolved organic nitrogen in sewage. The method includes: filtering a sewage sample using a filter membrane; measuring the concentrations of total dissolved nitrogen (TDN), ammonia nitrogen (NH4+), and nitric nitrogen (NO3?) in the sewage sample, respectively designated as CTDN(I), CNH4+(I) and CNO3?(I); calculating the ratios of (CNH4+(I)+CNO3?(I))/CTDN(I) and CNO3?(I)/CNH4+(I), and according to the ratios, calculating the concentration of dissolved organic nitrogen (DON) in the sewage sample.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 13, 2019
    Inventors: Hongqiang REN, Haidong HU, Jinju GENG, Lili DING, Hui HUANG
  • Publication number: 20180136168
    Abstract: A device for supervising biofilm culturing, the device including: a fixed seat including an upper end; a supervision chamber; two ultrasonic sensing probes; a first mounting chamber; a second mounting chamber disposed between the fixed seat and the supervision chamber; an ultrasonic generator; an oscilloscope; and a controller. The first and second mounting chambers are disposed at two opposite ends of the supervision chamber, respectively. The two ultrasonic sensing probes are disposed in the first and second mounting chambers, respectively. The second mounting chamber is connected to the upper end of the fixed seat. The two ultrasonic sensing probes each are respectively connected to the ultrasonic generator, the oscilloscope, and the controller successively.
    Type: Application
    Filed: January 15, 2018
    Publication date: May 17, 2018
    Inventors: Hongqiang REN, Jinfeng WANG, Lili DING, Jianxin LI, Huimin FU, Hui HUANG
  • Patent number: 9902637
    Abstract: A method for degrading artificial sweeteners from sewage, the method including: 1) introducing sewage to a secondary sedimentation tank and precipitating sediments; 2) collecting a supernatant from the secondary sedimentation tank, adding a NaOH solution or a perchloric acid solution to regulate the pH; adding an H2O2 solution to the supernatant to adjust a ratio of a molar concentration of H2O2 to a molar concentration of the sweetener in the resulting mixed solution to be between 1:1 and 30:1; transferring the resulting mixed solution to a photoreactor, irradiating the mixed solution by ultraviolet light, and stirring the mixed solution for between 5 and 30 min; and adding a 1.5% w/w aqueous NaNO2 solution to the mixed solution; and 3) collecting and analyzing an effluent obtained from 2), contacting the effluent with ClO2 for reaction in a disinfecting tank, and discharging the product.
    Type: Grant
    Filed: December 25, 2016
    Date of Patent: February 27, 2018
    Assignee: NANJING UNIVERSITY
    Inventors: Jinju Geng, Yuhang Ren, Hongqiang Ren, Ke Xu, Lili Ding
  • Publication number: 20170267564
    Abstract: A method for degrading artificial sweeteners from sewage, the method including: 1) introducing sewage to a secondary sedimentation tank and precipitating sediments; 2) collecting a supernatant from the secondary sedimentation tank, adding a NaOH solution or a perchloric acid solution to regulate the pH; adding an H2O2 solution to the supernatant to adjust a ratio of a molar concentration of H2O2 to a molar concentration of the sweetener in the resulting mixed solution to be between 1:1 and 30:1; transferring the resulting mixed solution to a photoreactor, irradiating the mixed solution by ultraviolet light, and stirring the mixed solution for between 5 and 30 min; and adding a 1.5% w/w aqueous NaNO2 solution to the mixed solution; and 3) collecting and analyzing an effluent obtained from 2), contacting the effluent with ClO2 for reaction in a disinfecting tank, and discharging the product.
    Type: Application
    Filed: December 25, 2016
    Publication date: September 21, 2017
    Inventors: Jinju GENG, Yuhang REN, Hongqiang Ren, Ke XU, Lili DING
  • Publication number: 20170253890
    Abstract: A method for preparing a bacterial agent for removing ammonia-nitrogen, including: 1) activating a mixed microbial preparation including heterotrophic nitrification bacteria and aerobic denitrification bacteria; 2) inoculating the microbial preparation including heterotrophic nitrification bacteria and the aerobic denitrification bacteria to a membrane region including a double-layered filler; 3) introducing a culture solution of the microbial preparation to the membrane region from one side of the membrane region at a certain pressure and a certain flow rate to cultivate bacteria and discharging metabolites produced by the microbial preparation from the other side of the membrane region; 4) centrifuging a bacterial liquid obtained from cultivation to yield a concentrated bacterial suspension; and 5) adding a protecting agent to the concentrated bacterial suspension, uniformly dry spraying a resulting mixture to a sterilized carrier to yield a bacterial agent, and sealing the bacterial agent for storage.
    Type: Application
    Filed: December 8, 2016
    Publication date: September 7, 2017
    Inventors: Jinju GENG, Hongqiang REN, Ke XU, Lili DING
  • Patent number: 9611159
    Abstract: A Fenton reactor, including a body. The body includes: from the bottom up, a sewage introduction zone, a solid acid reaction zone, tubular ceramic membranes, and a water generation zone. A water feed pump, a first chemical feed pump, and a second chemical feed pump are disposed below the body. The outlets of the water feed pump, the first chemical feed pump, and the second chemical feed pump communicate with the water inlet of the body. The water feed pump, the first chemical feed pump, and the second chemical feed pump are provided with flow meters, respectively. The solid acid reaction zone is disposed above the sewage introduction zone, and the tubular ceramic membranes are disposed in the center of the solid acid reaction zone and separate the solid acid reaction zone to form a cavity. The water generation zone is disposed above the solid acid reaction zone.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: April 4, 2017
    Assignee: NANJING UNIVERSITY
    Inventors: Lili Ding, Mengtian Chen, Hongqiang Ren
  • Patent number: 9561976
    Abstract: A coupling bioreactor in the form of a tower type seal structure filled with a suspended carrier. A water inlet pipe, an air inlet pipe, and a first microporous aerator are arranged at the bottom of the coupling reactor. The water inlet pipe is connected to a water distributor. The air inlet pipe is connected to the first microporous aerator. A gas inlet pipe and a second microporous aerator are arranged at the middle part of the coupling bioreactor and are connected with each other. An annular overflow weir is arranged at the upper part of the coupling bioreactor and is connected to a water outlet pipe. A gas outlet pipe is arranged at the top of the coupling bioreactor. The ratio of the height to the diameter of the coupling bioreactor is between 3 and 10.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: February 7, 2017
    Assignee: NANJING UNIVERSITY
    Inventors: Hongqiang Ren, Ke Xu, Lili Ding, Jinju Geng
  • Patent number: 9422180
    Abstract: A method for treatment of coke wastewater, including (1) introducing wastewater into a regulating reservoir into which an acid liquor is added until the pH value of the wastewater ranges between about 5.5 and about 6.5; (2) introducing the wastewater into a three-dimensional electrode treatment device for electrolysis treatment; and (3) introducing the wastewater into a coagulation reaction tank into which an alkali liquor is added until the pH value of the wastewater ranges between 8 and 10, and as a coagulant polysilicate ferric magnesium is added into the wastewater for a hybrid reaction of between 5 and 15 mins; allowing the wastewater to flow into a sedimentation basin for plain sedimentation of between 4 and 6 hrs; and extracting a supernatant liquor to yield a processed effluent.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: August 23, 2016
    Inventors: Hongqiang Ren, Xiaolei Shi, Lili Ding, Ming Liu, Xiaobing Hu
  • Publication number: 20160091468
    Abstract: A method for measuring a relative content of Gram-negative bacteria in an active sludge, the method including: 1) breaking zoogloeas in the active sludge; 2) isolating 2-keto-3-deoxyoctonic acid (KDO) from free bacteria and cell debris; 3) performing fluorescence labeling on the isolated KDO to obtain a fluorescent derivative; and 4) isolating the fluorescent derivative by high performance liquid chromatography (HPLC) and conducting quantitative measurement by fluorescence to obtain the relative content of the Gram-negative bacteria in the active sludge.
    Type: Application
    Filed: September 13, 2015
    Publication date: March 31, 2016
    Inventors: Hongqiang REN, Wenbo SU, Lili DING, Jinjv GENG, Ke XU, Yan ZHANG
  • Publication number: 20150336825
    Abstract: A Fenton reactor, including a body. The body includes: from the bottom up, a sewage introduction zone, a solid acid reaction zone, tubular ceramic membranes, and a water generation zone. A water feed pump, a first chemical feed pump, and a second chemical feed pump are disposed below the body. The outlets of the water feed pump, the first chemical feed pump, and the second chemical feed pump communicate with the water inlet of the body. The water feed pump, the first chemical feed pump, and the second chemical feed pump are provided with flow meters, respectively. The solid acid reaction zone is disposed above the sewage introduction zone, and the tubular ceramic membranes are disposed in the center of the solid acid reaction zone and separate the solid acid reaction zone to form a cavity. The water generation zone is disposed above the solid acid reaction zone.
    Type: Application
    Filed: May 20, 2015
    Publication date: November 26, 2015
    Inventors: Lili DING, Mengtian CHEN, Hongqiang REN
  • Patent number: D824357
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: July 31, 2018
    Assignee: SHENZHEN WANLING ELECTRONIC CO., LTD.
    Inventor: Lili Ding