Patents by Inventor Dong Qiu

Dong Qiu 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: 20200242706
    Abstract: Disclosed are a method and an apparatus for matching between a transaction request and a response based on location of a transaction, wherein the method comprises: step S1: receiving, by a server, a transaction request from a first client, the transaction request including a transaction description, an upfront pricing for the transaction, location of the transaction, and a posting scope associated with the location of the transaction; step S2: after a receiver in the server successfully receives the upfront pricing for the transaction transferred from the first client, positioning, via a Location Based Service (LBS), locations of other clients based on the location of the transaction, and pushing the transaction request to a plurality of second clients within the posting scope; step S3: receiving, from one or more of the plurality of second clients, one or more responses to the request, and forwarding the one or more responses to the first client to implement matching.
    Type: Application
    Filed: January 20, 2020
    Publication date: July 30, 2020
    Inventors: Xudong Cui, Fenghua Hui, Dong Qiu
  • Publication number: 20200027916
    Abstract: Provided are a pixel of an uncooled infrared focal plane detector and a preparation method therefor. The pixel includes a structure of three layers sequentially located on a semiconductor substrate from bottom to top. The first layer is a bridge structure including a metal reflection layer, an insulation dielectric layer, a first supporting layer, a first support layer protection layer, a first metal electrode layer and a first silicon nitride dielectric layer. The second layer is a thermal conversion structure including a second support layer, a second support layer protection layer, a thermal sensitive layer, a thermal sensitive layer production layer, a second metal electrode layer and a second silicon nitride dielectric layer. The third layer is an absorption structure including a third support layer, an absorption layer and an absorption layer protection layer.
    Type: Application
    Filed: September 29, 2016
    Publication date: January 23, 2020
    Applicant: YANTAI RAYTRON TECHNOLOGY CO., LTD
    Inventors: Hongchen WANG, Peng WANG, Wenli CHEN, Dong QIU
  • Patent number: 10458953
    Abstract: A method and a system for acquiring the natural frequency of a diaphragm, wherein, the method comprises: selecting test frequency points in a closed space, converting an electric signal into an acoustic signal, directing sound into the closed space, and acquiring the acoustic pressure of each test frequency point; adjusting the electric signal until the acoustic pressure of each test frequency point is the same; converting the adjusted electric signal into an acoustic signal; acquiring the displacement generated by the vibration of the diaphragm; and taking the frequency corresponding to the maximum displacement of the diaphragm as the natural frequency of the diaphragm. By adopting the method and system, the natural frequency of the diaphragm is determined by acquiring the maximum displacement of the diaphragm. Moreover, the process of acquiring the natural frequency of the diaphragm is not affected by surrounding environment, and therefore the acquired result is more accurate.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: October 29, 2019
    Assignee: GOERTEK INC.
    Inventors: Dong Qiu, Chao Jiang
  • Publication number: 20190262803
    Abstract: A monolithic catalyst used for a carbon dioxide hydrogenation reaction and a method for preparing the same. The catalyst comprises a carrier, a coating, and active components. The carrier is a honeycomb ceramic. The coating and the active components are separately applied to honeycomb ceramic hole walls from inside to outside. Moreover, each of the honeycomb ceramic holes is divided into an upper segment and a lower segment, and different active components are separately loaded on the two segments. The method for preparing the monolithic catalyst comprises first applying a coating to a honeycomb ceramic by means of impregnation to obtain a coating-containing carrier, and then applying active components to an upper segment and a lower segment of the coating-containing carrier successively by means of impregnation to obtain the monolithic catalyst.
    Type: Application
    Filed: March 21, 2017
    Publication date: August 29, 2019
    Inventors: Yang YU, Haibo CHEN, Shixin WEI, Yusheng YIN, Chunpeng MAO, Jiedong TAN, Dong QIU, Tianming XIE, Jian HE, Huiqin YIN, Xianguo TIAN, Tianlei DONG, Qiong WANG
  • Publication number: 20190134262
    Abstract: Disclosed herein is a technology for healing bone defects using bioactive silicate glass (BSG) and a 3D osteomimetic composite porous scaffold containing microspheres comprised of poly(lactide-co-glycolide) (PLGA).
    Type: Application
    Filed: November 2, 2018
    Publication date: May 9, 2019
    Applicant: Purdue Research Foundation
    Inventors: Meng Deng, Dong Qiu, Jessica Lynn Zuponcic
  • Patent number: 10197438
    Abstract: Disclosed are a device and a method for testing impedance characteristic and expansion performance of a sound absorption material. The device includes a first cavity and a second cavity which are both sealed. The first cavity is communicated with the second cavity through a slit channel. The second cavity is used for placing a sound absorption material therein. The device further includes a sound excitation source whose sounding face is located in the first cavity and used to provide a testing sound pressure. The device further includes two sound pickup sensors whose sound pickup surfaces are respectively arranged in the first cavity and the second cavity and respectively used to detect sound pressure in the first cavity and the second cavity. The device further includes a material for enclosing the first cavity and the second cavity is a hard sound insulation material.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: February 5, 2019
    Assignee: Goertek Inc.
    Inventors: Dong Qiu, Xiaodong Cao
  • Patent number: 9877127
    Abstract: A method and system for testing a temperature tolerance limit of a loudspeaker. The method includes: selecting a test signal, and determining a test output voltage as a rated voltage of the loudspeaker, so that the loudspeaker reaches a rated amplitude; determining a gain boosting frequency point according to a resonant frequency of the loudspeaker; performing a plurality of tests for the loudspeaker, and in each test controlling the test signal to maintain the gain constant in a frequency band lower than the gain boosting frequency point and increase the gain in a frequency band higher than the gain boosting frequency point, testing and recording a temperature of the loudspeaker till the loudspeaker fails, and recording a temperature at the time of the failure; and determining a highest temperature that is tolerable by the loudspeaker before the loudspeaker fails.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: January 23, 2018
    Assignee: GOERTEK INC.
    Inventors: Kang Ping, Xinfeng Yang, Dong Qiu
  • Publication number: 20170276540
    Abstract: Disclosed are a device and a method for testing impedance characteristic and expansion performance of a sound absorption material. The device includes a first cavity and a second cavity which are both sealed. The first cavity is communicated with the second cavity through a slit channel. The second cavity is used for placing a sound absorption material therein. The device further includes a sound excitation source whose sounding face is located in the first cavity and used to provide a testing sound pressure. The device further includes two sound pickup sensors whose sound pickup surfaces are respectively arranged in the first cavity and the second cavity and respectively used to detect sound pressure in the first cavity and the second cavity. The device further includes a material for enclosing the first cavity and the second cavity is a hard sound insulation material.
    Type: Application
    Filed: June 15, 2015
    Publication date: September 28, 2017
    Applicant: Goertek Inc.
    Inventors: Dong Qiu, Xiaodong Cao
  • Publication number: 20170257718
    Abstract: A method and system for testing a temperature tolerance limit of a loudspeaker. The method includes: selecting a test signal, and determining a test output voltage as a rated voltage of the loudspeaker, so that the loudspeaker reaches a rated amplitude; determining a gain boosting frequency point according to a resonant frequency of the loudspeaker; performing a plurality of tests for the loudspeaker, and in each test controlling the test signal to maintain the gain constant in a frequency band lower than the gain boosting frequency point and increase the gain in a frequency band higher than the gain boosting frequency point, testing and recording a temperature of the loudspeaker till the loudspeaker fails, and recording a temperature at the time of the failure; and determining a highest temperature that is tolerable by the loudspeaker before the loudspeaker fails.
    Type: Application
    Filed: December 7, 2015
    Publication date: September 7, 2017
    Applicant: GOERTEK INC.
    Inventors: Kang PING, Xinfeng YANG, Dong QIU
  • Patent number: 9726651
    Abstract: A double-sided diaphragm micro gas-preconcentrator has a micro-gas chamber which is formed by stacking an upper silicon substrate with a lower silicon substrate with a back-on-face configuration. One or more suspended membranes are provided on every silicon substrate. The silicon where the suspended membrane is provided is completely removed for forming a cavity. A thin-film heater is deposited on every suspended membrane. A sorptive film is coated on an inner wall of every suspended membrane. Thus, the upper and lower sides of the preconcentrator in the present invention are suspended membranes, which improve the area of the sorptive film on the diaphragm. As a result, the preconcentrating factor is improved while keeping the small heat capacity, fast heating rate, and low power consumption features of the planar diaphragm preconcentrator.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: August 8, 2017
    Assignee: University of Electronic Science and Technology of China
    Inventors: Xiaosong Du, Luhua Cheng, Penglin Wu, Huan Yuan, Yadong Jiang, Ze Wu, Yi Li, Dong Qiu
  • Publication number: 20170045480
    Abstract: A method and a system for acquiring the natural frequency of a diaphragm, wherein, the method comprises: selecting test frequency points in a closed space, converting an electric signal into an acoustic signal, directing sound into the closed space, and acquiring the acoustic pressure of each test frequency point; adjusting the electric signal until the acoustic pressure of each test frequency point is the same; converting the adjusted electric signal into an acoustic signal; acquiring the displacement generated by the vibration of the diaphragm; and taking the frequency corresponding to the maximum displacement of the diaphragm as the natural frequency of the diaphragm. By adopting the method and system, the natural frequency of the diaphragm is determined by acquiring the maximum displacement of the diaphragm. Moreover, the process of acquiring the natural frequency of the diaphragm is not affected by surrounding environment, and therefore the acquired result is more accurate.
    Type: Application
    Filed: April 1, 2015
    Publication date: February 16, 2017
    Inventors: Dong QIU, Chao JIANG
  • Publication number: 20150160172
    Abstract: A double-sided diaphragm micro gas-preconcentrator has a micro-gas chamber which is formed by stacking an upper silicon substrate with a lower silicon substrate with a back-on-face configuration. One or more suspended membranes are provided on every silicon substrate. The silicon where the suspended membrane is provided is completely removed for forming a cavity. A thin-film heater is deposited on every suspended membrane. A sorptive film is coated on an inner wall of every suspended membrane. Thus, the upper and lower sides of the preconcentrator in the present invention are suspended membranes, which improve the area of the sorptive film on the diaphragm. As a result, the preconcentrating factor is improved while keeping the small heat capacity, fast heating rate, and low power consumption features of the planar diaphragm preconcentrator.
    Type: Application
    Filed: January 9, 2015
    Publication date: June 11, 2015
    Inventors: Xiaosong Du, Luhua Cheng, Penglin Wu, Huan Yuan, Yadong Jiang, Ze Wu, Yi Li, Dong Qiu
  • Patent number: 8969976
    Abstract: A double-sided diaphragm micro gas-preconcentrator has a micro-gas chamber which is formed by bonding an upper silicon substrate with a lower silicon substrate. One or more suspended membranes are provided on every silicon substrate. The silicon where the suspended membrane is provided is completely removed for forming a cavity. A thin-film heater is deposited on every suspended membrane. A sorptive film is coated on an inner wall of every suspended membrane. Thus, the upper and lower sides of the preconcentrator in the present invention are suspended membranes, which improve the area of the sorptive film on the diaphragm. As a result, the preconcentrating factor is improved while keeping the small heat capacity, fast heating rate, and low power consumption features of the planar diaphragm preconcentrator.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: March 3, 2015
    Assignee: University of Electronic Science and Technology of China
    Inventors: Xiaosong Du, Ze Wu, Yi Li, Yadong Jiang, Dong Qiu
  • Publication number: 20130249022
    Abstract: A double-sided diaphragm micro gas-preconcentrator has a micro-gas chamber which is formed by bonding an upper silicon substrate with a lower silicon substrate. One or more suspended membranes are provided on every silicon substrate. The silicon where the suspended membrane is provided is completely removed for forming a cavity. A thin-film heater is deposited on every suspended membrane. A sorptive film is coated on an inner wall of every suspended membrane. Thus, the upper and lower sides of the preconcentrator in the present invention are suspended membranes, which improve the area of the sorptive film on the diaphragm. As a result, the preconcentrating factor is improved while keeping the small heat capacity, fast heating rate, and low power consumption features of the planar diaphragm preconcentrator.
    Type: Application
    Filed: August 9, 2012
    Publication date: September 26, 2013
    Inventors: Xiaosong Du, Ze Wu, Yi Li, Yadong Jiang, Dong Qiu
  • Patent number: 7913483
    Abstract: On each draft element of a ring spinning frame, two pieces of short-staple roving from the roving bobbin enter into the draft mechanism to be drafted though a guide funnel in parallel, two pieces of filament are fed from the back of the front roller, and combine with two pieces of roving at front jaw respectively. The drafted two pieces of roving and filament are output from the front jaw and enter into the twisting triangle area to be twisted, and then are wound onto a yarn bobbin to produce yarn. Based on the relative position of the two pieces of roving and two pieces of filament, different yarns can be produced. Furthermore, multi-component yarn, such as core structure, wrapped structure, strand-like structure, can be produced on a ring spinning frame. The structure of yarn can be precisely determined. Special fiber yarn can be produced on traditional spinning frame.
    Type: Grant
    Filed: February 15, 2009
    Date of Patent: March 29, 2011
    Assignee: Shandong Ruyi Science & Technology Group
    Inventors: Yafu Qiu, Weilin Xu, Dong Qiu, Cailing Ding, Weigang Cui, Wenge Wang, Xiaolin Shen, Aiguo Yang, Baocang Li, Jianping Wang, Guang Qin
  • Publication number: 20100162677
    Abstract: On each draft element of a ring spinning frame, two pieces of short-staple roving from the roving bobbin enter into the draft mechanism to be drafted though a guide funnel in parallel, two pieces of filament are fed from the back of the front roller, and combine with two pieces of roving at front jaw respectively. The drafted two pieces of roving and filament are output from the front jaw and enter into the twisting triangle area to be twisted, and then are wound onto a yarn bobbin to produce yarn. Based on the relative position of the two pieces of roving and two pieces of filament, different yarns can be produced. Furthermore, multi-component yarn, such as core structure, wrapped structure, strand-like structure, can be produced on a ring spinning frame. The structure of yarn can be precisely determined. Special fiber yarn can be produced on traditional spinning frame.
    Type: Application
    Filed: February 15, 2009
    Publication date: July 1, 2010
    Inventors: Yafu Qiu, Weilin Xu, Dong Qiu, Cailing Ding, Weigang Cui, Wenge Wang, Xiaolin Shen, Aiguo Yang, Baocang Li, Jianping Wang, Guang Qin
  • Publication number: 20100096028
    Abstract: An anti-backflow valve, including a valve seat and a plug slidingly disposed in the valve seat, is provided. The valve seat has a ring portion protruding inwards at a middle section of a flow passage thereof. The ring portion has a seat portion extended outwards on one side thereof. The plug has an accommodating chamber recessed inwards on one side thereof. The accommodating chamber has an opening radially penetrating through the plug at one end thereof distant from an inlet. The plug has a protruding portion at one end thereof adjacent to the inlet. An outer diameter of the protruding portion is larger than an inner diameter of the ring portion. A spring is provided between the protruding portion and the ring portion, and a portion of the plug penetrating through the ring portion has an O-ring engaged thereon corresponding to the seat portion.
    Type: Application
    Filed: October 22, 2008
    Publication date: April 22, 2010
    Inventor: Wei-Dong QIU