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).
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Publication number: 20200242706Abstract: 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: ApplicationFiled: January 20, 2020Publication date: July 30, 2020Inventors: Xudong Cui, Fenghua Hui, Dong Qiu
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Publication number: 20200027916Abstract: 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: ApplicationFiled: September 29, 2016Publication date: January 23, 2020Applicant: YANTAI RAYTRON TECHNOLOGY CO., LTDInventors: Hongchen WANG, Peng WANG, Wenli CHEN, Dong QIU
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Patent number: 10458953Abstract: 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: GrantFiled: April 1, 2015Date of Patent: October 29, 2019Assignee: GOERTEK INC.Inventors: Dong Qiu, Chao Jiang
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Publication number: 20190262803Abstract: 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: ApplicationFiled: March 21, 2017Publication date: August 29, 2019Inventors: 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
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Publication number: 20190134262Abstract: 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: ApplicationFiled: November 2, 2018Publication date: May 9, 2019Applicant: Purdue Research FoundationInventors: Meng Deng, Dong Qiu, Jessica Lynn Zuponcic
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Patent number: 10197438Abstract: 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: GrantFiled: June 15, 2015Date of Patent: February 5, 2019Assignee: Goertek Inc.Inventors: Dong Qiu, Xiaodong Cao
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Patent number: 9877127Abstract: 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: GrantFiled: December 7, 2015Date of Patent: January 23, 2018Assignee: GOERTEK INC.Inventors: Kang Ping, Xinfeng Yang, Dong Qiu
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Publication number: 20170276540Abstract: 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: ApplicationFiled: June 15, 2015Publication date: September 28, 2017Applicant: Goertek Inc.Inventors: Dong Qiu, Xiaodong Cao
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Publication number: 20170257718Abstract: 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: ApplicationFiled: December 7, 2015Publication date: September 7, 2017Applicant: GOERTEK INC.Inventors: Kang PING, Xinfeng YANG, Dong QIU
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Patent number: 9726651Abstract: 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: GrantFiled: January 9, 2015Date of Patent: August 8, 2017Assignee: University of Electronic Science and Technology of ChinaInventors: Xiaosong Du, Luhua Cheng, Penglin Wu, Huan Yuan, Yadong Jiang, Ze Wu, Yi Li, Dong Qiu
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Publication number: 20170045480Abstract: 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: ApplicationFiled: April 1, 2015Publication date: February 16, 2017Inventors: Dong QIU, Chao JIANG
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Publication number: 20150160172Abstract: 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: ApplicationFiled: January 9, 2015Publication date: June 11, 2015Inventors: Xiaosong Du, Luhua Cheng, Penglin Wu, Huan Yuan, Yadong Jiang, Ze Wu, Yi Li, Dong Qiu
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Patent number: 8969976Abstract: 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: GrantFiled: August 9, 2012Date of Patent: March 3, 2015Assignee: University of Electronic Science and Technology of ChinaInventors: Xiaosong Du, Ze Wu, Yi Li, Yadong Jiang, Dong Qiu
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Publication number: 20130249022Abstract: 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: ApplicationFiled: August 9, 2012Publication date: September 26, 2013Inventors: Xiaosong Du, Ze Wu, Yi Li, Yadong Jiang, Dong Qiu
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Patent number: 7913483Abstract: 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: GrantFiled: February 15, 2009Date of Patent: March 29, 2011Assignee: Shandong Ruyi Science & Technology GroupInventors: Yafu Qiu, Weilin Xu, Dong Qiu, Cailing Ding, Weigang Cui, Wenge Wang, Xiaolin Shen, Aiguo Yang, Baocang Li, Jianping Wang, Guang Qin
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Publication number: 20100162677Abstract: 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: ApplicationFiled: February 15, 2009Publication date: July 1, 2010Inventors: Yafu Qiu, Weilin Xu, Dong Qiu, Cailing Ding, Weigang Cui, Wenge Wang, Xiaolin Shen, Aiguo Yang, Baocang Li, Jianping Wang, Guang Qin
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Publication number: 20100096028Abstract: 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: ApplicationFiled: October 22, 2008Publication date: April 22, 2010Inventor: Wei-Dong QIU