Patents by Inventor Danqing Liu
Danqing 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).
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Patent number: 11892442Abstract: A comprehensive system for potential risk identification and pollution prewarning of groundwater comprises a cable laying device, a monitoring cable, and an electromagnetic retrieving device which are located in groundwater between two adjacent wells, wherein the two adjacent wells comprise a first well and a second well, the second well is located at a lower water level of the first well and communicates with the first well, the electromagnetic retrieving device is located in the second well, a plurality of sensors are arranged on the monitoring cable, and one end of the monitoring cable is connected to the cable laying device. The cable laying device comprises a device body, an anchoring module arranged at a bottom of the device body, and an electromagnetic adsorption module arranged on the device body. The monitoring cable is connected to the cable laying device after passing through the anchoring module.Type: GrantFiled: January 18, 2023Date of Patent: February 6, 2024Assignee: Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and EnvironmentInventors: Yu Wang, Chunsheng Lv, Qijia Lou, Quanli Liu, Kuo Tang, Danqing Liu, Zhenyu Zhong, Xueting Shao, Jing Li, Dongdong Wang, Ke Li, Wei Wang, Zengguang Yan, Guanlin Guo, Hao Wu
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Publication number: 20230236163Abstract: A comprehensive system for potential risk identification and pollution prewarning of groundwater comprises a cable laying device, a monitoring cable, and an electromagnetic retrieving device which are located in groundwater between two adjacent wells, wherein the two adjacent wells comprise a first well and a second well, the second well is located at a lower water level of the first well and communicates with the first well, the electromagnetic retrieving device is located in the second well, a plurality of sensors are arranged on the monitoring cable, and one end of the monitoring cable is connected to the cable laying device. The cable laying device comprises a device body, an anchoring module arranged at a bottom of the device body, and an electromagnetic adsorption module arranged on the device body. The monitoring cable is connected to the cable laying device after passing through the anchoring module.Type: ApplicationFiled: January 18, 2023Publication date: July 27, 2023Applicant: Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry and EnvironInventors: Chunsheng LV, Yu WANG, Danqing LIU, Quanli LIU, Qijia LOU, Hao WU, Zhenyu ZHONG, Kuo TANG, Xueting SHAO, Ke LI, Dongdong Wang, Wei WANG, Jing LI, Zengguang YAN, Guanlin GUO
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Patent number: 11505745Abstract: A use of zwitterionic compound in preparation of dynamic-scattering-mode-based liquid crystal material. A liquid crystal material is also described. Such material contains liquid crystal and dopant, and the dopant is zwitterionic compound. A liquid crystal electro-optical device comprising such liquid crystal compound and the use of such optical device are also described. Zwitterionic compound is used as dopant to induce a stable dynamic scattering mode in liquid crystals.Type: GrantFiled: December 28, 2018Date of Patent: November 22, 2022Assignees: SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD., ACADEMY OF SHENZHEN GUOHUA OPTOELECTRONICSInventors: Guofu Zhou, Yuanyuan Zhan, Danqing Liu, Albertus Petrus Henricus Johannes Schenning, Dirk Jan Broer
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Patent number: 11405444Abstract: Aspects of present disclosure relates a streaming signal for transmitting digital contents through a set of secure digital communication devices in a secure digital communication system. The streaming signal includes: an audio handshake signal and a streaming media signal. The streaming signal is transmitted between a first workstation and a second workstation in the secure digital communication system.Type: GrantFiled: September 24, 2021Date of Patent: August 2, 2022Assignee: SHANGHAI WEILING ELECTRONICS CO., LTD.Inventors: Danqing Liu, Shijian Liu
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Patent number: 11360734Abstract: Aspects of present disclosure relates to a secure digital communication device. In certain embodiments, secure digital communication device (SDCD) includes: a streaming signal CODEC, and a streaming signal transceiver. SDCD is installed between intranet and internet over firewall to form a physical isolation of intranet and internet. When streaming signal CODEC of a first SDCD receives digital contents, streaming signal CODEC of the first SDCD encodes digital contents into streaming signal, transmits streaming signal to a streaming signal transceiver of the first SDCD, streaming signal transceiver of the first SDCD transmits streaming signal over internet to another streaming signal transceiver of second SDCD.Type: GrantFiled: September 24, 2021Date of Patent: June 14, 2022Assignee: Shanghai Weiling Electronics Co., Ltd.Inventors: Danqing Liu, Shijian Liu
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Publication number: 20210355384Abstract: A use of zwitterionic compound in preparation of dynamic-scattering-mode-based liquid crystal material. A liquid crystal material is also described. Such material contains liquid crystal and dopant, and the dopant is zwitterionic compound. A liquid crystal electro-optical device comprising such liquid crystal compound and the use of such optical device are also described. Zwitterionic compound is used as dopant to induce a stable dynamic scattering mode in liquid crystals.Type: ApplicationFiled: December 28, 2018Publication date: November 18, 2021Applicants: SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD., ACADEMY OF SHENZHEN GUOHUA OPTOELECTRONICSInventors: Guofu ZHOU, Yuanyuan ZHAN, Danqing LIU, Albertus Petrus Henricus Johannes SCHENNING, Dirk Jan BROER
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Patent number: 10788313Abstract: There are provided in the present disclosure a method for determining a position of an item, an item monitoring system and a non-transitory computer-readable recording medium, and relates to the technical field of intelligent monitoring. The method is applied to a processing device connected to a depth sensor installed on a rack, the rack is located in a sensing space of the depth sensor, the rack is provided with a plurality of feature components, and each kind of item on the rack is placed corresponding to a feature component, the method comprises: acquiring depth information and light intensity information collected by the depth sensor; determining position information of each feature component according to the light intensity information and the depth information; determining the position information of an item placed corresponding to each feature component according to the position information of each feature component.Type: GrantFiled: December 4, 2018Date of Patent: September 29, 2020Assignee: BEIJING KUANGSHI TECHNOLOGY CO., LTD.Inventor: Danqing Liu
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Publication number: 20200133036Abstract: A color-changing light-adjusting liquid crystal device and a light-adjusting method may include a main liquid crystal and a dichroic dye, which may be filled between substrates disposed oppositely, in a non-powered state. The main liquid crystal may be subjected to a specific arrangement orientation under an induction of an alignment layer, in a powered state, and the main liquid crystal may be subjected to a reorientation. Dichroic dye molecules may be rotated along with the reorientation of the main liquid crystal so as to scatter incident light in a visible spectrum, convert a light-transmitting state into a light-scattering state at a macro level, and display a color of the dichroic dye in the main liquid crystal, thus implementing light adjustment. The color-changing light-adjusting liquid crystal device does not contain a polymer network, so that a polymerization process is not needed and a polymer aging is avoided.Type: ApplicationFiled: July 6, 2018Publication date: April 30, 2020Applicant: SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD.Inventors: Guofu ZHOU, Yuanyuan ZHAN, Dirk Jan BROER, Danqing LIU, Albertus Petrus Henricus Johannes SCHENNING
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Patent number: 10623198Abstract: A smart electronic device is provided for a multi-user environment to meet more convenient life requirements of a plurality of users. The smart electronic device has a camera, a microphone, a processing circuit, a network interface and a projector. The processing circuit loads a user's image and determines an identity of the user appearing before the camera based on the user's image. The processing circuit also analyzes a gesture of the user fetched by the camera or a voice message fetched by the microphone for transforming into a corresponding operating command. The projector displays a frame generated in correspondence to the operating command.Type: GrantFiled: February 16, 2017Date of Patent: April 14, 2020Assignee: XIAMEN ECO LIGHTING CO., LTD.Inventors: Wuwei Lin, Yuchun Ding, Danqing Liu
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Publication number: 20200018855Abstract: This disclosure provides a method, system for associating a target object with an item and a non-transitory computer-readable recording medium, and relates to the field of intelligent monitoring technology. The method is applied to a processing device, and the processing device is connected to a laser radar mounted on a rack; the method includes: acquiring sensing information obtained from that the laser radar senses the target object; determining a trigger point coordinate of the target object within the sensing range according to the sensing information; and determining an item associated with the target object according to the trigger point coordinate of the target object and a position coordinate of said each item stored in advance. This disclosure can be widely applied to many types of racks, suitable for a variety of monitoring occasions.Type: ApplicationFiled: December 7, 2018Publication date: January 16, 2020Inventors: Danqing Liu, Yuchun Ding, Pengfei Zheng
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Publication number: 20190346255Abstract: There are provided in the present disclosure a method for determining a position of an item, an item monitoring system and a non-transitory computer-readable recording medium, and relates to the technical field of intelligent monitoring. The method is applied to a processing device connected to a depth sensor installed on a rack, the rack is located in a sensing space of the depth sensor, the rack is provided with a plurality of feature components, and each kind of item on the rack is placed corresponding to a feature component, the method comprises: acquiring depth information and light intensity information collected by the depth sensor; determining position information of each feature component according to the light intensity information and the depth information; determining the position information of an item placed corresponding to each feature component according to the position information of each feature component.Type: ApplicationFiled: December 4, 2018Publication date: November 14, 2019Inventor: Danqing Liu
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Publication number: 20190331946Abstract: A light-adjusting device and a light-adjusting method thereof are disclosed. A main liquid crystal and salt from which ions are ionized are filled between adjusting areas formed by oppositely arranged substrates, the main liquid crystal is arranged in a specific orientation under an induction of an alignment layer under an unpowered state, the main liquid crystal is re-oriented under an powered state, meanwhile, ions ionized from the salt from which ions are ionized move quickly under an effect of an formed electric field, which disorganizes the specific orientation arrangement of the main liquid crystal, so that the main liquid crystal moves irregularly following a quick movement of the ionized ions, so as to scatter incident light in a visible light band, and further adjust transmission and scattering of visible light, thus realizing light adjustment.Type: ApplicationFiled: July 6, 2018Publication date: October 31, 2019Applicant: SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD.Inventors: Guofu ZHOU, Yuanyuan ZHAN, Dirk Jan BROER, Danqing LIU, Albertus Petrus Henricus Johannes SCHENNING
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Patent number: 10319546Abstract: A wireless switch is provided. The wireless switch comprises a mechanical switch, an electronic switch module, a charger module, a power storage module, and a wireless control module. The electronic switch module is connected to the mechanical switch in parallel. When one of the mechanical switch and the electronic switch module is turned on, the power storage module is charged through the charger module.Type: GrantFiled: February 27, 2017Date of Patent: June 11, 2019Assignee: XIAMEN ECO LIGHTING CO. LTD.Inventors: Danqing Liu, Jiaqing Zhuang
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Publication number: 20190130377Abstract: This disclosure provides an automatic billing system and an automatic billing method, and relates to the field of intelligent billing technologies, the automatic billing method is executed by a billing terminal, the method includes: receiving physical information of the items to be checked out acquired by the physical information acquiring device, the physical information including weight and/or volume; receiving image information of the items to be checked out acquired by the image acquiring device; determining identity information of the items to be checked out according to the image information of the items to be checked out; verifying whether the identity information of the items to be checked out is correct according to the physical information of the items to be checked out; and if correct, proceeding to checkout of the items to be checked out.Type: ApplicationFiled: October 30, 2018Publication date: May 2, 2019Inventors: Yuchun DING, Danqing LIU, Pengfei ZHENG
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Publication number: 20180204696Abstract: A wireless switch is provided. The wireless switch comprises a mechanical switch, an electronic switch module, a charger module, a power storage module, and a wireless control module. The electronic switch module is connected to the mechanical switch in parallel. When one of the mechanical switch and the electronic switch module is turned on, the power storage module is charged through the charger module.Type: ApplicationFiled: February 27, 2017Publication date: July 19, 2018Inventors: Danqing Liu, Jiaqing Zhuang
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Publication number: 20180097885Abstract: A smart identifying apparatus is portable and a user can carry the smart identifying apparatus to different regions. The smart identifying apparatus includes a motion detecting circuit, a communicating circuit and a processing circuit. The motion detecting circuit detects motions for a user. The communicating circuit has an effective wireless communication distance, configured to communicate with an IOT gateway via a wireless communication protocol. The processing circuit compares the user motion detected by the motion detecting circuit with a predetermined motion rule, and decides if the communication circuit is controlled to actively generate a notice to communicate with the IOT gateway according to the comparing result.Type: ApplicationFiled: February 16, 2017Publication date: April 5, 2018Inventors: Danqing Liu, Chenzhen Fu, Xiaocong Zhang
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Publication number: 20180048479Abstract: A smart electronic device is provided for a multi-user environment to meet more convenient life requirements of a plurality of users. The smart electronic device has a camera, a microphone, a processing circuit, a network interface and a projector. The processing circuit loads a user's image and determines an identity of the user appearing before the camera based on the user's image. The processing circuit also analyzes a gesture of the user fetched by the camera or a voice message fetched by the microphone for transforming into a corresponding operating command. The projector displays a frame generated in correspondence to the operating command.Type: ApplicationFiled: February 16, 2017Publication date: February 15, 2018Inventors: Wuwei Lin, Yuchun Ding, Danqing Liu
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Patent number: 9701698Abstract: Cycloalkylalkylphosphonic acids are presented that are useful for forming a self-assembled monolayer (SAM) on a surface of a metal oxide layer. The combined SAM and metal oxide layer form the dielectric layer of an organic thin film transistor (OTFT). The OTFT can be formed with p-type and n-type organic semiconductor layers on the SAM. The OTFT display superior field effect mobilities and air stabilities to other SAMs and the SAMS of cycloalkylalkylphosphonic acids allow deposition of the organic semiconductors by either vapor deposition or solution processing techniques.Type: GrantFiled: June 3, 2015Date of Patent: July 11, 2017Assignee: THE CHINESE UNIVERSITY OF HONG KONGInventors: Qian Miao, Danqing Liu, Zikai He
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Patent number: 9376679Abstract: Microvesicles containing interfering RNAs, preparation methods and uses thereof are provided. Pharmaceutical compositions and kits comprising the microvesicles containing interfering RNAs are also provided. Microvesicles containing interfering RNAs, pharmaceutical compositions and kits comprising such microvesicles can be used to study the effects of interfering RNAs on receptor cells. As microvesicles containing interfering RNAs can stably, high efficiently and specifically deliver interfering RNAs, microvesicles containing interfering RNAs can be used to treat related diseases.Type: GrantFiled: May 26, 2010Date of Patent: June 28, 2016Assignee: Micromedmark Biotech Co. Ltd.Inventors: Chenyu Zhang, Ke Zeng, Danqing Liu, Yujing Zhang, Hongwei Gu
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Publication number: 20150364684Abstract: Cycloalkylalkylphosphonic acids are presented that are useful for forming a self-assembled monolayer (SAM) on a surface of a metal oxide layer. The combined SAM and metal oxide layer form the dielectric layer of an organic thin film transistor (OTFT). The OTFT can be formed with p-type and n-type organic semiconductor layers on the SAM. The OTFT display superior field effect mobilities and air stabilities to other SAMs and the SAMS of cycloalkylalkylphosphonic acids allow deposition of the organic semiconductors by either vapor deposition or solution processing techniques.Type: ApplicationFiled: June 3, 2015Publication date: December 17, 2015Inventors: QIAN MIAO, DANQING LIU, ZIKAI HE