Patents by Inventor Di Ma
Di Ma 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).
-
Patent number: 11950594Abstract: The present disclosure discloses a method for inhibiting formation of a biofilm of bacteria. Specifically, the method may include treating the bacteria with an effective amount of a coumarin-chalcone compound. While inhibiting the formation of the biofilm of the bacteria, the effective amount of the coumarin-chalcone compound may reduce virulences of the bacteria and enhance a susceptibility of the bacteria to an antibiotic when applied in combination with the antibiotic. The present disclosure further discloses a composition including an effective amount of the coumarin-chalcone compound. The composition may be used to inhibit the formation of the biofilm of bacteria. The composition may also include an antibiotic, a minimal inhibitory concentration and a minimal biofilm eliminate concentration of which are reduced when the composition is used.Type: GrantFiled: November 12, 2021Date of Patent: April 9, 2024Assignee: INSTITUTE OF MICROBIOLOGY, CHINESE ACADEMY OF SCIENCESInventors: Luyan Ma, Qing Wei, Pramod Bhasme, Di Wang
-
Publication number: 20240085510Abstract: Disclosed are a dynamic error measurement apparatus, system, and method for an electricity meter. The measurement apparatus includes a test signal generation unit configured to generate a voltage test signal and two-circuit current test signals, output the voltage test signal to a measurement unit, and output the two-circuit current test signals to the measurement unit and a current summation unit; the measurement unit configured to determine two-circuit electric energy values based on the voltage test signal and the two-circuit current test signals, and output the two-circuit electric energy values to a calculation control unit; the current summation unit configured to determine a combined current signal based on the two-circuit current test signals; and the calculation control unit configured to determine a total electric energy value based on the two-circuit electric energy values. The system includes a standard meter and a measurement apparatus.Type: ApplicationFiled: November 4, 2022Publication date: March 14, 2024Inventors: Jian Ma, Tao Hu, Xuewei Wang, Kexu Chen, Di Wu, Yan Zhao, Gaofeng Deng, Qiang Liu, Aichao Yang, Yanlinzi Huang
-
Patent number: 11277009Abstract: Disclosed are a method and apparatus for smoothing a link-line power of an electrothermal microgrid using a thermal storage heat pump cluster.Type: GrantFiled: November 26, 2019Date of Patent: March 15, 2022Assignees: State Grid Jiangsu Electric Power CO., LTD Nanjing Power Supply Company, SHANGHAI JIAO TONG UNIVERSITY, HOHAI UNIVERSITY, STATE GRID JIANGSU ELECTRIC POWER CO., LTDInventors: Yong Zhang, Zhoujun Ma, Ming Zhang, Wentao Huang, Shigang Dai, Yuping Zheng, Nengling Tai, Chunning Wang, Liwei Wang, Honghua Xu, Yiru Chen, Di Ma
-
Patent number: 11245535Abstract: A cryptographic scheme to provide sender identification on an automotive on-board communication bus has been recently introduced. That protocol is vulnerable to a malicious gateway though. This methodology uses hash-chains to provide sender identification in an automotive on-board communication bus that can be applied to protect the entire communication bus and allows the use of network gateways.Type: GrantFiled: July 18, 2017Date of Patent: February 8, 2022Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Di Ma, Andre Weimerskirch
-
Patent number: 11189032Abstract: A method, apparatus and computer program product are provided for extracting building footprints for buildings based on satellite imagery. In this regard, a segmentation map is generated by performing an image segmentation on satellite imagery depicting at least one building. A plurality of line segments that correspond to edges of the at least one building are also generated. Furthermore, a contour for each of the at least one building is generated by filtering line segments corresponding to the at least one building based on the respective principle direction. The geographic data for each of the at least one building is then extracted based on the respective contour.Type: GrantFiled: April 1, 2020Date of Patent: November 30, 2021Assignee: HERE GLOBAL B.V.Inventors: Di Ma, Lin Gan, Fangzhou Xiong, Sanjay Boddhu
-
Publication number: 20210312632Abstract: A method, apparatus and computer program product are provided for extracting building footprints for buildings based on satellite imagery. In this regard, a segmentation map is generated by performing an image segmentation on satellite imagery depicting at least one building. A plurality of line segments that correspond to edges of the at least one building are also generated. Furthermore, a contour for each of the at least one building is generated by filtering line segments corresponding to the at least one building based on the respective principle direction. The geographic data for each of the at least one building is then extracted based on the respective contour.Type: ApplicationFiled: April 1, 2020Publication date: October 7, 2021Inventors: Di Ma, Lin Gan, Fangzhou Xiong, Sanjay Boddhu
-
Publication number: 20200176989Abstract: Disclosed are a method and apparatus for smoothing a link-line power of an electrothermal microgrid using a thermal storage heat pump cluster.Type: ApplicationFiled: November 26, 2019Publication date: June 4, 2020Applicants: State Grid Jiangsu Electric Power CO., LTD Nanjing Power Supply Company, SHANGHAI JIAO TONG UNIVERSITY, HOHAI UNIVERSITY, STATE GRID JIANGSU ELECTRIC POWER CO., LTDInventors: Yong ZHANG, Zhoujun MA, Ming ZHANG, Wentao HUANG, Shigang DAI, Yuping ZHENG, Nengling TAI, Chunning WANG, Liwei WANG, Honghua XU, Yiru CHEN, Di MA
-
Patent number: 10517145Abstract: A chemical liquid thermostat control device is provided, and has a chemical tank for accommodating a chemical liquid, PTC resistor patterns for heating and maintaining the chemical liquid in a constant temperature, a current limit circuit for controlling the PTC resistor patterns to heat or to stop heating according to a real-time resistance value of each of the PTC resistor patterns, so as to maintain the chemical liquid at the constant temperature. The PTC resistor patterns are uniformly spaced in the chemical tank and immersed in the chemical liquid. Each of the PTC resistor patterns is connected with the current limit circuit through a wire. A heating power of a heating device can be real-time adjusted for intelligently heating. Thus, it is safer and a fire risk can be prevented. The life time of the PTC resistor patterns is more than a decade, and doesn't need be replaced frequently.Type: GrantFiled: October 25, 2016Date of Patent: December 24, 2019Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Di Ma
-
Patent number: 10442630Abstract: A supporting and transferring mechanism and a supporting and transferring device are provided. The supporting and transferring mechanism includes a gas supply portion, a supporting ball and an accommodating portion. An accommodating space is formed in the accommodating portion and the supporting ball is provided in the accommodating space. The gas supply portion is communicated with the accommodating portion to supply a gas of preset pressure into the accommodating space, so as to lift the supporting ball in the accommodating space such that a part of a surface of the supporting ball protrudes out of the accommodating portion. The part of the surface of the supporting ball protruding out of the accommodating portion supports and transfers the plate-like article.Type: GrantFiled: September 22, 2017Date of Patent: October 15, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.Inventors: Yunliang Zheng, Renji Liu, Meng Wu, Di Ma, Kai Yu, Yongqi Deng
-
Publication number: 20190288849Abstract: A cryptographic scheme to provide sender identification on an automotive on-board communication bus has been recently introduced. That protocol is vulnerable to a malicious gateway though. This methodology uses hash-chains to provide sender identification in an automotive on-board communication bus that can be applied to protect the entire communication bus and allows the use of network gateways.Type: ApplicationFiled: July 18, 2017Publication date: September 19, 2019Inventors: Di MA, Andre WEIMERSKIRCH
-
Patent number: 10262213Abstract: Systems, methods, and apparatuses are disclosed for determining lane information of a roadway segment from vehicle probe data. Probe data is received from vehicle camera sensors at a road segment, wherein the probe data includes lane marking data on the road segment. Lane markings are identified, to the extent present, for the left and right boundaries of the lane of travel as well as the adjacent lane boundaries to the left and right of the lane of travel. The identified lane markings are coded, wherein solid lane lines, dashed lane lines, and unidentified or non-existing lane lines are differentiated. The coded lane markings are compiled in a database. A number of lanes are predicted at the road segment from the database of coded lane markings.Type: GrantFiled: December 16, 2014Date of Patent: April 16, 2019Assignee: HERE Global B.V.Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vladimir Zhukov, Xiaotao Zou
-
Publication number: 20190071263Abstract: A supporting and transferring mechanism and a supporting and transferring device are provided. The supporting and transferring mechanism includes a gas supply portion, a supporting ball and an accommodating portion. An accommodating space is formed in the accommodating portion and the supporting ball is provided in the accommodating space. The gas supply portion is communicated with the accommodating portion to supply a gas of preset pressure into the accommodating space, so as to lift the supporting ball in the accommodating space such that a part of a surface of the supporting ball protrudes out of the accommodating portion. The part of the surface of the supporting ball protruding out of the accommodating portion supports and transfers the plate-like article.Type: ApplicationFiled: September 22, 2017Publication date: March 7, 2019Inventors: Yunliang Zheng, Renji Liu, Meng Wu, Di Ma, Kai Yu, Yongqi Deng
-
Patent number: 10002537Abstract: Systems, methods, and apparatuses are disclosed for determining lane information of a roadway segment from vehicle probe data. Probe data is received from radar sensors of vehicles at a road segment, where the probe data includes an identification of static objects and dynamic objects in proximity to the respective vehicles at the road segment, and geographic locations of the static objects and the dynamic objects. A reference point, such as a road boundary, at the road segment is determined from the identified static objects. Lateral distances between the identified dynamic objects and the reference point are calculated. A number of lanes at the road segment are ascertained from a distribution of the calculated distances of the identified dynamic objects from the reference point.Type: GrantFiled: June 21, 2017Date of Patent: June 19, 2018Assignee: HERE Global B. V.Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vladimir Zhukov, Xiaotao Zou
-
Publication number: 20170287337Abstract: Systems, methods, and apparatuses are disclosed for determining lane information of a roadway segment from vehicle probe data. Probe data is received from radar sensors of vehicles at a road segment, where the probe data includes an identification of static objects and dynamic objects in proximity to the respective vehicles at the road segment, and geographic locations of the static objects and the dynamic objects. A reference point, such as a road boundary, at the road segment is determined from the identified static objects. Lateral distances between the identified dynamic objects and the reference point are calculated. A number of lanes at the road segment are ascertained from a distribution of the calculated distances of the identified dynamic objects from the reference point.Type: ApplicationFiled: June 21, 2017Publication date: October 5, 2017Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vladimir Zhukov, Xiaotao Zou
-
Publication number: 20170290094Abstract: A chemical liquid thermostat control device is provided, and has a chemical tank for accommodating a chemical liquid, PTC resistor patterns for heating and maintaining the chemical liquid in a constant temperature, a current limit circuit for controlling the PTC resistor patterns to heat or to stop heating according to a real-time resistance value of each of the PTC resistor patterns, so as to maintain the chemical liquid at the constant temperature. The PTC resistor patterns are uniformly spaced in the chemical tank and immersed in the chemical liquid. Each of the PTC resistor patterns is connected with the current limit circuit through a wire. A heating power of a heating device can be real-time adjusted for intelligently heating. Thus, it is safer and a fire risk can be prevented. The life time of the PTC resistor patterns is more than a decade, and doesn't need be replaced frequently.Type: ApplicationFiled: October 25, 2016Publication date: October 5, 2017Inventor: Di MA
-
Patent number: 9721471Abstract: Systems, methods, and apparatuses are disclosed for determining lane information of a roadway segment from vehicle probe data. Probe data is received from radar sensors of vehicles at a road segment, where the probe data includes an identification of static objects and dynamic objects in proximity to the respective vehicles at the road segment, and geographic locations of the static objects and the dynamic objects. A reference point, such as a road boundary, at the road segment is determined from the identified static objects. Lateral distances between the identified dynamic objects and the reference point are calculated. A number of lanes at the road segment are ascertained from a distribution of the calculated distances of the identified dynamic objects from the reference point.Type: GrantFiled: December 16, 2014Date of Patent: August 1, 2017Assignee: HERE Global B.V.Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vladimir Zhukov, Xiaotao Zou
-
Publication number: 20170169461Abstract: The present invention provides a promotion system and a promotion method, where the promotion system includes: a producing module, configured to produce a display material; a setting module, configured to set the display material produced by the producing module; and a releasing module, configured to release the display material set by the setting module to different social networks via different release channels. According to the advertisement promotion system provided in embodiments of the present invention, the producing module completes production of the display material, the setting module completes design of the display material, and finally the releasing module releases the display material which has been produced and set to various social networks via release channels provided by the promotion system, thereby helping a user to autonomously complete production, setting and release of an enterprise display material, and reducing promotion cost.Type: ApplicationFiled: May 6, 2016Publication date: June 15, 2017Inventors: JIN HUANG, DIANSHENG LU, WEI MAO, DI MA, WEI WANG, WEIMING ZHU, XU LIU, YI TANG
-
Patent number: 9459626Abstract: Systems, methods, and apparatuses are disclosed for identifying road signs along a roadway segment from vehicle probe data. Probe data is received from vehicle sensors at a road segment, wherein the probe data includes observed static objects along the road segment. Road signs are identified within the observed static objects of the probe data using a logistic regression algorithm. The geographic location of the identified road signs are determined using a linear regression algorithm.Type: GrantFiled: December 11, 2014Date of Patent: October 4, 2016Assignee: HERE Global B.V.Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vlad Zhukov, Xiaotao Zou
-
Publication number: 20160167582Abstract: Systems, methods, and apparatuses are disclosed for determining lane information of a roadway segment from vehicle probe data. Probe data is received from vehicle camera sensors at a road segment, wherein the probe data includes lane marking data on the road segment. Lane markings are identified, to the extent present, for the left and right boundaries of the lane of travel as well as the adjacent lane boundaries to the left and right of the lane of travel. The identified lane markings are coded, wherein solid lane lines, dashed lane lines, and unidentified or non-existing lane lines are differentiated. The coded lane markings are compiled in a database. A number of lanes are predicted at the road segment from the database of coded lane markings.Type: ApplicationFiled: December 16, 2014Publication date: June 16, 2016Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vladimir Zhukov, Xiaotao Zou
-
Publication number: 20160171893Abstract: Systems, methods, and apparatuses are disclosed for determining lane information of a roadway segment from vehicle probe data. Probe data is received from radar sensors of vehicles at a road segment, where the probe data includes an identification of static objects and dynamic objects in proximity to the respective vehicles at the road segment, and geographic locations of the static objects and the dynamic objects. A reference point, such as a road boundary, at the road segment is determined from the identified static objects. Lateral distances between the identified dynamic objects and the reference point are calculated. A number of lanes at the road segment are ascertained from a distribution of the calculated distances of the identified dynamic objects from the reference point.Type: ApplicationFiled: December 16, 2014Publication date: June 16, 2016Inventors: Xin Chen, Di Ma, Xiang Ma, Roman Ostrovskiy, Vladimir Zhukov, Xiaotao Zou