Patents by Inventor Jingdong Zhang

Jingdong Zhang 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: 10852873
    Abstract: The present disclosure relates to pressure-sensitive detection apparatus. One example apparatus includes a pressure sensor array located in a touch display screen. One half-bridge circuit is constituted in each row of the pressure sensor array. When there is a touch input signal on the touch display screen, a first half-bridge circuit and a second half-bridge circuit corresponding to a touch location of the touch input signal output signals. A deformation amount generated when pressure is applied to a first pressure sensor component in the first half-bridge circuit is less than a deformation amount generated when the pressure is applied to a second pressure sensor component in the first half-bridge circuit, and a deformation amount generated when the pressure is applied to a first pressure sensor component in the second half-bridge circuit is greater than a deformation amount generated when the pressure is applied to a second pressure sensor component in the second half-bridge circuit.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: December 1, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jiang Liu, Jingdong Wu, Zeshi Zhang
  • Publication number: 20200340845
    Abstract: A point level switch for industrial interface detection is described, the switch including a microwave waveguide sensor in place of the more commonly encountered vibrating fork.
    Type: Application
    Filed: December 17, 2018
    Publication date: October 29, 2020
    Inventor: Jingdong ZHANG
  • Patent number: 10651646
    Abstract: A fault current limiter, including: two inductors, a direct current circuit breaker, a shunt resistor, a first fixed resistor, and metal oxide arresters. The two inductors include wound superconducting wires. The inductors have identical number of windings and identical structure. Magnetic fluxes of the inductors are forward coupled, and the inductors are connected in parallel to form a superconducting inductor structure. The direct current circuit breaker and the superconducting inductor structure are connected in series to form a series branch. The shunt resistor is connected in parallel to the series branch. The first fixed resistor is connected in parallel to the direct current circuit breaker. The metal oxide arresters are two in number, and are connected to two ends of the inductors in parallel.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: May 12, 2020
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Li Ren, Siyuan Liang, Yuejin Tang, Ying Xu, Zhong Xia, Zuoshuai Wang, Jing Shi, Jingdong Li, Lihui Zhang, Sinian Yan, Zhangwei Yang, Yi Zhang
  • Patent number: 10424918
    Abstract: A fault current limiter, including: an inductor, a direct current circuit breaker, a shunt resistor, and a first fixed resistor. The inductor includes wound superconducting wires. The direct current circuit breaker and the inductor are connected in series to form a series branch. The shunt resistor is connected in parallel to the series branch. The first fixed resistor is connected in parallel to the direct current circuit breaker.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: September 24, 2019
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Li Ren, Siyuan Liang, Yuejin Tang, Ying Xu, Zhong Xia, Zuoshuai Wang, Jing Shi, Jingdong Li, Lihui Zhang, Sinian Yan, Zhangwei Yang, Yi Zhang
  • Publication number: 20190186980
    Abstract: The invention provides a method for configuring for use a vibrating fork level switch having a dry fork frequency DFF. The method involves establishing a wet fork frequency WFF and combining this with the DFF to configure the switch for use in media of differing densities.
    Type: Application
    Filed: August 2, 2017
    Publication date: June 20, 2019
    Applicant: Rosemount Measurement Limited
    Inventors: Jeffery Allan SEARS, Jingdong ZHANG, Tadewos TZEGAZEAB, Kevin THOMAS
  • Publication number: 20140121602
    Abstract: An infusion pump comprises a housing (1); and a controller (3), a direct current motor (4), a transmission mechanism (6), a rotary encoder (5), and a liquid reservoir (7), which are located within the housing (1), wherein: a piston (71) is provided within the liquid reservoir (7); the transmission mechanism (6) has one end connected with the piston (71) and the other end connected with the direct current motor (4); the rotation shaft of the rotary encoder (5) is connected with the rotation shaft (41) of the direct current motor (4); the controller (3) is connected with the rotary encoder (5) and is provided thereon with a built-in clock and an input key (2) capable of receiving an external control signal. The infusion pump can freely adjust the infusion time and the infusion dose.
    Type: Application
    Filed: August 11, 2011
    Publication date: May 1, 2014
    Applicants: SHANGHAI MICROPORT LIFESCIENCES CO., LTD., RUIJIN HOSPITAL, SHANGHAI JIAOTONG UNIVERSITY SCHOOL OF MEDICINE
    Inventors: Guang NING, Maohe LIU, Weiqing WANG, Shouyue SUN, Jingdong ZHANG, Xiaomin HUANG
  • Publication number: 20130317436
    Abstract: An infusion pump comprises a housing (1); and a controller (3), a direct current motor (4), a transmission mechanism (6), a rotary encoder (5), and a liquid reservoir (7), which are located within the housing (1), wherein: a piston (71) is provided within the liquid reservoir (7); the transmission mechanism (6) has one end connected with the piston (71) and the other end connected with the direct current motor (4); the rotation shaft of the rotary encoder (5) is connected with the rotation shaft (41) of the direct current motor (4); the controller (3) is connected with the rotary encoder (5) and is provided thereon with a built-in clock and an input key (2) capable of receiving an external control signal. The infusion pump can freely adjust the infusion time and the infusion dose.
    Type: Application
    Filed: August 11, 2011
    Publication date: November 28, 2013
    Applicants: RUINJIN HOSPITAL, SHANGHAI JIAOTONG UNIVERSITY SCHOOL OF MEDICINE CO., LTD., SHANGHAI MICROPORT LIFESCIENCES CO., LTD.
    Inventors: Guang Ning, Maohe Liu, Weiqing Wang, Shouyue Sun, Jingdong Zhang, Xiaomin Huang
  • Publication number: 20110214502
    Abstract: The present invention provides a level sensor, preferably a level switch, which in use is mounted at the position at which a fluid level is to be monitored and uses a relatively low resolution TDR circuit to discriminate only between wet and dry states.
    Type: Application
    Filed: December 4, 2009
    Publication date: September 8, 2011
    Inventor: Jingdong Zhang
  • Patent number: 7580192
    Abstract: A collimation lens system for converging the light from an LED into a light beam, includes a central lens aligned along the optical axis of the LED for converging inner light from the LED, the central lens including an aspheric collimation plano convex lens having a planar entrance surface and an aspheric exit surface; and a peripheral lens surrounding the central lens for converging outer light from the LED, the peripheral lens including a total internal reflection collimation lens having an entrance surface and an exit surface and including a high order aspheric total internal reflection surface for reflecting the outer light by total internal reflection. The central lens and the peripheral lens share a common focal point at which the LED may be positioned.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: August 25, 2009
    Assignee: Smart Champ Enterprise Limited
    Inventors: Man Yin Arthur Newton Chu, Jingdong Zhang, Jingbo Jiang, Suet To
  • Patent number: 6398940
    Abstract: A novel method to fabricate nanoscale pits on Au(111) surfaces in contact with aqueous solution is claimed. The method uses in situ electrochemical scanning tunnelling microscopy with independent electrochemical substrate and tip potential control and very small bias voltages. This is significantly different from other documented methods, which mostly apply high and short voltage pulses. The most important advantages of the present method are that the dimensions and positions of the pits can be controlled with high precision in aqueous environment so that nanopatterns of the pits can be designed, and that the operations are simple and require no instrumental accessories. Parameters, which control the pit formation and size, have been systematically characterized and show that the primary controlling parameter is the bias voltage. A mechanism based on local surface reconstruction induced by electronic contact between tip and substrate is in keeping with the overall patterns for pit formation.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: June 4, 2002
    Assignee: Danmarks Tekniske Universitet
    Inventors: Quijin Chi, Jingdong Zhang, Jens Enevold Thaulov Andersen, Jens Ulstrup, Esben Peter Friis