Patents by Inventor Weiping Zhu

Weiping Zhu 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: 20170138914
    Abstract: A darkroom type security inspection apparatus and a method of performing an inspection using the darkroom type security inspection apparatus. An apparatus includes a housing constituting a closed darkroom, and assemblies disposed inside the housing. The assemblies disposed inside the housing include: a sample collecting unit configured to collect a sample, a conveyor unit, and a X-ray detection unit to detect a position of the objected to be inspected, wherein the X-ray detection unit is configured to determine the position of the objected to be inspected within the sampling assembly so that the object to be inspected together with the conveyor unit is conveyed to an expected position; and a sample processing assembly, wherein the assemblies disposed inside the housing are communicated by fittings or connectors.
    Type: Application
    Filed: September 26, 2016
    Publication date: May 18, 2017
    Applicants: TSINGHUA UNIVERSITY, NUCTECH COMPANY LIMITED
    Inventors: Qingjun ZHANG, Yuanjing LI, Zhiqiang CHEN, Ziran ZHAO, Weiping ZHU, Yaohong LIU, Qiufeng MA, Xiang ZOU, Huishao HE, Jianping CHANG, Song LIANG
  • Publication number: 20170016856
    Abstract: A detection apparatus and a detection method are disclosed. In one aspect, the detection apparatus includes a sampling device for collecting samples to be checked. It further includes a sample pre-processing device configured to pre-process the sample from the sampling device. It further includes a sample analyzing device for separating samples from the pre-processing device and for analyzing the separated samples. The detection apparatus is miniaturized and highly precise, and is capable of quickly and accurately detecting gaseous phase or particulate substances, and it has applications for safety inspections at airports, ports, and subway stations.
    Type: Application
    Filed: September 29, 2016
    Publication date: January 19, 2017
    Inventors: Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Ziran Zhao, Yinong Liu, Yaohong Liu, Huishao He, Qiufeng Ma, Weiping Zhu, Xiang Zou, Jianping Chang, Song Liang
  • Publication number: 20160356679
    Abstract: A sampling device and a gas curtain guide are disclosed. In one aspect, the sampling device includes a chamber body. The chamber body includes a sample inlet, located at a first end of the chamber body, configured for suction of a sample. The chamber body further includes a sample outlet, located adjacent to a second end opposite to the first end of the chamber body, configured to discharge the sample. The chamber body further includes a gas inflation inlet, in a wall of the chamber body, configured to introduce a swirl gas flow into the chamber body. The chamber body further includes a gas exhaust opening configured to discharge gas so as to, together with the gas inflation inlet, generate a tornado type gas flow in the chamber body, which moves spirally from the first end to the second end of the chamber body.
    Type: Application
    Filed: August 16, 2016
    Publication date: December 8, 2016
    Inventors: Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Huishao He, Qiufeng Ma, Ziran Zhao, Yinong Liu, Yaohong Liu, Weiping Zhu, Xiang Zou, Jianping Chang
  • Publication number: 20160341695
    Abstract: The present invention discloses a gas analyzing apparatus and a sampling device. The gas analyzing apparatus includes a sampling device and an ion mobility spectrum analysis device. The sampling device includes a multi-capillary column and a temperature control system. The ion mobility spectrum analysis device is adapted for analyzing a gas leaded-in by the sampling device and includes a reaction cavity for reaction between sample molecules and reaction ions, the cavity having a sampling opening for leading-in of the gas. An outlet end of the multi-capillary column is inserted directly into the cavity of the ion mobility spectrum analysis device through the sampling opening of the ion mobility spectrum analysis device.
    Type: Application
    Filed: December 24, 2015
    Publication date: November 24, 2016
    Applicant: NUCTECH COMPANY LIMITED
    Inventors: Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Ziran Zhao, Yinong Liu, Yaohong Liu, Qiufeng Ma, Huishao He, Weiping Zhu, Xiang Zou, Jianping Chang, Song Liang
  • Publication number: 20160189945
    Abstract: A sample introduction device comprises a sampling unit, a gas suction pump, adsorption units, a piston cylinder and a desorption cylinder that comprises a desorption chamber, a carrier-gas inlet, a split/purge vent and an analyzer nozzle communicating with the desorption chamber. A heating film and a temperature sensor are provided on outer wall of the desorption cylinder. The piston cylinder above the desorption cylinder comprises two piston chambers, each of which is provided with the adsorption unit and in communication with the desorption chamber. The piston cylinder comprises a sample-gas inlet connected to the sampling unit and a gas-suction-pump orifice connected to the gas suction pump, each of which can communicate with both piston chambers. Each adsorption unit comprises an adsorption cylinder-like screen for holding adsorbents and a piston rod slidably mounted in the piston chamber.
    Type: Application
    Filed: December 30, 2015
    Publication date: June 30, 2016
    Inventors: Qingjun ZHANG, Yuanjing LI, Zhiqiang CHEN, Weiping ZHU, Huishao HE, Qiufeng MA, Yaohong LIU, Xiang ZOU, Jianping CHANG
  • Patent number: 8600818
    Abstract: A method, device, and system for carrying a Point of Sale (POS) data service over an IP network are disclosed. A method for carrying a POS data service over an IP network includes receiving, by a home gateway, a number dialed by a user at a POS. When determining that the number dialed at the POS is a POS access code according to configuration information, a call link with a softswitch is set up through Session Initiation Protocol (SIP) signaling interactions and Session Description Protocol (SDP) negotiation is performed with the softswitch. A DSP inside the home gateway is switched from a normal voice mode to a POS data service mode. POS negotiation is performed with a Network Access Server (NAS) connected to a banking center and data services exchanged between the POS and the banking center are transferred after successful negotiation.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: December 3, 2013
    Assignee: Huawei Device Co., Ltd.
    Inventors: Weiping Zhu, Hong Ye, Qiuming Peng
  • Publication number: 20110276421
    Abstract: A method, device, and system for carrying a Point of Sale (POS) data service over an IP network are disclosed. A method for carrying a POS data service over an IP network includes receiving, by a home gateway, a number dialed by a user at a POS. When determining that the number dialed at the POS is a POS access code according to configuration information, a call link with a softswitch is set up through Session Initiation Protocol (SIP) signaling interactions and Session Description Protocol (SDP) negotiation is performed with the softswitch. A DSP inside the home gateway is switched from a normal voice mode to a POS data service mode. POS negotiation is performed with a Network Access Server (NAS) connected to a banking center and data services exchanged between the POS and the banking center are transferred after successful negotiation.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 10, 2011
    Applicant: Huawei Device Co., LTD.
    Inventors: Weiping Zhu, Hong Ye, Qiuming Peng
  • Patent number: 6681883
    Abstract: A system for reducing steering nibble and other vibrations in a power-assisted steering system increases the amount of damping force when a power steering boost system is applying little or no steering force to the steering actuator, and reduces the amount of damping force when the power boost system is applying significant steering force to the steering actuator. A damping member is formed of a polymer material and is urged into contact with the steering actuator by a spring-biased clamping member. A shuttle valve regulates pressure from the hydraulic steering boost system to overcome the spring biasing force whenever hydraulic pressure is applied to the steering actuator. The preload of the spring biasing mechanism is varied by an electronic control unit that receives inputs from a driver-activated switch, and from vehicle condition sensors to allow automatic, adaptive adjustment of the damping to optimize driving comfort and safety.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: January 27, 2004
    Assignee: Ford Global Technologies, LLC
    Inventors: Wei-Yi Loh, Thomas Micheal Dalka, Weiping Zhu, Jiansheng Weng
  • Publication number: 20030173138
    Abstract: A system for reducing steering nibble and other vibrations in a power-assisted steering system increases the amount of damping force when a power steering boost system is applying little or no steering force to the steering actuator, and reduces the amount of damping force when the power boost system is applying significant steering force to the steering actuator. A damping member is formed of a polymer material and is urged into contact with the steering actuator by a spring-biased clamping member. A shuttle valve regulates pressure from the hydraulic steering boost system to overcome the spring biasing force whenever hydraulic pressure is applied to the steering actuator. The preload of the spring biasing mechanism is varied by an electronic control unit that receives inputs from a driver-activated switch, and from vehicle condition sensors to allow automatic, adaptive adjustment of the damping to optimize driving comfort and safety.
    Type: Application
    Filed: March 12, 2002
    Publication date: September 18, 2003
    Applicant: Ford Global Technologies, Inc.
    Inventors: Wei-Yi Loh, Thomas Micheal Dalka, Weiping Zhu, Jiansheng Weng
  • Patent number: 6322160
    Abstract: A damper (40) for damping tactile vibration (FIG. 4) caused by pressure changes induced in hydraulic fluid by an operational characteristic of a hydraulic-operated brake (22; 24) when the brake is braking a rotating object (14; 16). A piston (54) is displaceable within a housing bore (52) and divides the bore into a first chamber (56) confronting one axial face of the piston and a second chamber (58) confronting an opposite axial face of the piston. A port (59) communicates hydraulic fluid to the first chamber such that increasing hydraulic fluid pressure is effective to displace the piston toward the second chamber. A spring (60) that is operated by displacement of the piston within the bore resists piston displacement toward the second chamber as hydraulic fluid pressure increases and aids piston displacement toward the first chamber as hydraulic fluid pressure decreases. The invention is useful in hydraulic-operated motor vehicle brakes.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: November 27, 2001
    Assignee: Ford Global Technologies, Inc.
    Inventors: Wei-Yi Loh, Isiah Charles White, Weiping Zhu