Patents by Inventor Yeqing Zhang

Yeqing 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).

  • Publication number: 20240369376
    Abstract: A method for guiding driving of a vehicle includes generating M lane topology curves based on an obstacle and lane lines at an intersection, an obstacle and lane lines on a driving-in road at the intersection, and an obstacle and lane lines on a driving-out road at the intersection. The lane topology curve uses as endpoint an end of a driving-in lane of the driving-in road, and a start point of a driving-out lane of the driving-out road. Reasonableness detection is performed on the M lane topology curves to obtain K? lane topology curves, where K? is not greater than M. A target path using the K? lane topology curves may be used to guide the vehicle when the vehicle is located on the driving-in road.
    Type: Application
    Filed: July 11, 2024
    Publication date: November 7, 2024
    Inventors: Yeqing Zhang, Xingyang Lu, Siyuan Cheng, Chenyuan Wang, Ying Wan
  • Publication number: 20240337499
    Abstract: An intelligent driving method causes a vehicle to perform roaming based on a high-definition map, where the roaming can include lane switching, driving direction changing, or partial navigation strategy changing. The vehicle may perform the lane switching, the driving direction changing, or the partial navigation strategy changing based on an operation of a driver.
    Type: Application
    Filed: June 14, 2024
    Publication date: October 10, 2024
    Inventors: Qing Su, Xingyang Lu, Yeqing Zhang, Shuaijun Li
  • Publication number: 20240025412
    Abstract: A trajectory planning method and a related device are provided, to plan a sub-lane-level trajectory, so that an autonomous vehicle drives along the sub-lane-level trajectory, and driving stability and safety of the autonomous vehicle are improved by using the sub-lane-level trajectory. Target information is obtained, where the target information includes at least one of a driving status of a target vehicle and first road condition information.
    Type: Application
    Filed: October 5, 2023
    Publication date: January 25, 2024
    Inventors: Lei ZHANG, Yeqing ZHANG, Zhousu LI, Xia ZENG, Siyuan CHENG, Xinyu WANG
  • Patent number: 11131641
    Abstract: A method for measuring the oil content of a lithium battery separator by using DSC includes the following steps: taking 5-10 mg of an oil-containing separator sample from the lithium battery separator, and taking 5-10 mg of an oil-free separator sample from an oil-free separator; performing an enthalpy test on the oil-free separator sample at room temperature by using a differential scanning calorimeter to obtain a first enthalpy value, and performing an enthalpy test on the oil-containing separator sample by using the differential scanning calorimeter to obtain a second enthalpy value; subtracting the second enthalpy value from the first enthalpy value to obtain a difference, and then dividing the difference by the first enthalpy value to obtain the oil content of the oil-containing separator sample.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: September 28, 2021
    Assignee: JIANGSU HORIZON NEW ENERGY TECH CO., LTD.
    Inventors: Yeqing Zhang, Xingxing Weng, Cheng Jin, Zhaohui Chen
  • Patent number: 11123392
    Abstract: Disclosed herein is a traditional Chinese medicine composition for treating interstitial pulmonary fibrosis, which is prepared from 10-20 parts by weight of Radix salviae miltiorrhiza, 4-8 parts by weight of peach kernel, 2-4 parts by weight of hirudo, 5-15 parts by weight of Radix paeoniae rubra, 5-15 parts by weight of Radix ophiopogonis, 5-15 parts by weight of Chebulae fructus immaturus and 2-4 parts by weight of Oroxylum indicum (Linn.) Kurz. The invention also provides a method of preparing the composition.
    Type: Grant
    Filed: December 28, 2019
    Date of Patent: September 21, 2021
    Assignee: Jiangsu Traditional Chinese Medicine Research Institute
    Inventors: Qiyong Zhu, Qingling Xiao, Xiaoli Chen, Yeqing Zhang, Jianming Ju
  • Publication number: 20210247338
    Abstract: A method for measuring the oil content of a lithium battery separator by using DSC includes the following steps: taking 5-10 mg of an oil-containing separator sample from the lithium battery separator, and taking 5-10 mg of an oil-free separator sample from an oil-free separator; performing an enthalpy test on the oil-free separator sample at room temperature by using a differential scanning calorimeter to obtain a first enthalpy value, and performing an enthalpy test on the oil-containing separator sample by using the differential scanning calorimeter to obtain a second enthalpy value; subtracting the second enthalpy value from the first enthalpy value to obtain a difference, and then dividing the difference by the first enthalpy value to obtain the oil content of the oil-containing separator sample.
    Type: Application
    Filed: May 21, 2020
    Publication date: August 12, 2021
    Applicant: JIANGSU HORIZON NEW ENERGY TECH CO., LTD.
    Inventors: Yeqing ZHANG, Xingxing WENG, Cheng JIN, Zhaohui CHEN
  • Publication number: 20200297793
    Abstract: Disclosed herein is a traditional Chinese medicine composition for treating interstitial pulmonary fibrosis, which is prepared from 10-20 parts by weight of Radix salviae miltiorrhiza, 4-8 parts by weight of peach kernel, 2-4 parts by weight of hirudo, 5-15 parts by weight of Radix paeoniae rubra, 5-15 parts by weight of Radix ophiopogonis, 5-15 parts by weight of Chebulae fructus immaturus and 2-4 parts by weight of Oroxylum indicum (Linn.) Kurz. The invention also provides a method of preparing the composition.
    Type: Application
    Filed: December 28, 2019
    Publication date: September 24, 2020
    Inventors: Qiyong ZHU, Qingling XIAO, Xiaoli CHEN, Yeqing ZHANG, Jianming JU
  • Patent number: 9996766
    Abstract: Imaging-based methods for detecting defects in an extruded cellular ceramic article having a web array are disclosed. The methods may include capturing a digital image of the web array to establish an intensity-based initial web array representation. The methods also may include performing an intensity threshold process on the initial web array representation to define an intensity-based high-resolution web array representation having sub-pixel resolution, and performing piecewise cubic spline fits to define corresponding web skeletons. The method may also include comparing intensities of the high-resolution web array representation along the web skeletons to a threshold intensity to determine the defect locations and sizes. The methods can be applied to determining the size and location of skin defects as well.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: June 12, 2018
    Assignee: Corning Incorporated
    Inventors: DiRisio Carlo Richard, Frey Julie Charmaine, Gehl Kristine Sluder, Russell Wayne Madara, Hak Chuah Sim, Yeqing Zhang
  • Publication number: 20160321797
    Abstract: Imaging-based methods for detecting defects in an extruded cellular ceramic article having a web array are disclosed. The methods may include capturing a digital image of the web array to establish an intensity-based initial web array representation. The methods also may include performing an intensity threshold process on the initial web array representation to define an intensity-based high-resolution web array representation having sub-pixel resolution, and performing piecewise cubic spline fits to define corresponding web skeletons. The method may also include comparing intensities of the high-resolution web array representation along the web skeletons to a threshold intensity to determine the defect locations and sizes. The methods can be applied to determining the size and location of skin defects as well.
    Type: Application
    Filed: April 27, 2016
    Publication date: November 3, 2016
    Inventors: DiRisio Carlo Richard, Frey Julie Charmaine, Gehl Kristine Sluder, Russell Wayne Madara, Hak Chuah Sim, Yeqing Zhang
  • Patent number: 9165201
    Abstract: An embodiment generally relates to systems and methods for determining cell phone usage automatically by individuals operating vehicles. A processing module can process multi-spectral images or videos of individuals and detect different regions in the image such as face regions, hand regions, and cell phone regions. Further, the processing module can analyze the regions based on locations and numbers of skin pixels and cell phone pixels to determine if the individual is holding his or her cell phone near his or her face. Based on the analysis, it can be determined whether the individual is operating the cell phone. Further, the analysis can yield a confidence level associated with the cell phone usage.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: October 20, 2015
    Assignee: XEROX CORPORATION
    Inventors: Yeqing Zhang, Beilei Xu, Lalit K. Mestha, Graham Pennington
  • Patent number: 8851601
    Abstract: A method for calibrating in situ a plurality of printheads in an imaging device has been developed. Firing signals operate a plurality of printheads to form ink test patterns on an image receiving member. Reflectance measurements of light reflected from the test patterns and optical density measurements for a portion of the patterns formed by only one printhead in the plurality of printheads are used to adjust the firing signals and enable the printheads to print within a predetermined range about an average reflectance value and a predetermined optical density.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: October 7, 2014
    Assignee: Xerox Corporation
    Inventors: Yeqing Zhang, Jeffrey J. Folkins, Alex S. Brougham
  • Patent number: 8801140
    Abstract: A method for calibrating in situ a plurality of printheads in an imaging device has been developed. Firing signals operate a plurality of printheads to form ink test patterns on an image receiving member. Reflectance measurements of light reflected from the test patterns and optical density measurements for a portion of the patterns formed by only one printhead in the plurality of printheads are used to adjust the firing signals and enable the printheads to print within a predetermined range about an average reflectance value and a predetermined optical density.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: August 12, 2014
    Assignee: Xerox Corporation
    Inventors: R. Enrique Viturro, Yeqing Zhang, Patricia J. Donaldson
  • Publication number: 20140198146
    Abstract: A method for process direction registration in an inkjet printer includes ejecting ink drops from a first inkjet at less than a maximum operating rate onto an image receiving surface moving in a process direction. The method includes generating image data samples of the image receiving surface including the ink drops. The method further includes identifying a center of the ink drops in the process direction with reference to the image data samples and storing a time offset value in a memory to correct an identified process direction offset between the identified center of the ink drops and another identified center of ink drops that are ejected by another inkjet.
    Type: Application
    Filed: January 17, 2013
    Publication date: July 17, 2014
    Applicant: XEROX CORPORATION
    Inventors: Helen Haekyung Shin, Howard A. Mizes, Jeffrey J. Folkins, Yeqing Zhang
  • Patent number: 8764149
    Abstract: A method for process direction registration in an inkjet printer includes ejecting ink drops from a first inkjet at less than a maximum operating rate onto an image receiving surface moving in a process direction. The method includes generating image data samples of the image receiving surface including the ink drops. The method further includes identifying a center of the ink drops in the process direction with reference to the image data samples and storing a time offset value in a memory to correct an identified process direction offset between the identified center of the ink drops and another identified center of ink drops that are ejected by another inkjet.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: July 1, 2014
    Assignee: Xerox Corporation
    Inventors: Helen Haekyung Shin, Howard A. Mizes, Jeffrey J. Folkins, Yeqing Zhang
  • Patent number: 8662616
    Abstract: A method of operating a printer enables the mass of the ink drops ejected by the printheads in the printer to maintained in an optimal range without measuring the drop mass being ejected by the inkjets in the printheads. After calibration of the printheads, the printheads are operated with electrical signals having different peak-to-peak voltages. The number of inoperable inkjets for each printhead is determined from image data of the ejected ink on the image receiving member and the number of inoperable inkjets for each printhead is compared to a predetermined threshold. The peak-to-peak voltage for the electrical signals used to operate a printhead is adjusted with reference to the number of inoperable inkjets and the predetermined threshold.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: March 4, 2014
    Assignee: Xerox Corporation
    Inventors: Christine Ann Steurrys, David A. Tence, James D. Buehler, Yeqing Zhang, Jeffrey J. Folkins
  • Patent number: 8602518
    Abstract: A test pattern printed by printheads in an inkjet printer enables image analysis of the test pattern that identifies positions of the printheads and the inkjets operating in the printheads. The test pattern includes a plurality of arrangements of dashes, each arrangement of dashes having a predetermined number of rows and a predetermined number of columns, each dash in a row of dashes in the arrangement of dashes being separated by a first predetermined distance and each dash in a column of dashes in the arrangement of dashes being separated by a second predetermined distance, each dash in a column of an arrangement of dashes being ejected by a single inkjet ejector in a printhead of the inkjet printer, and a plurality of unprinted areas interspersed between the plurality of arrangements of dashes.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: December 10, 2013
    Assignee: Xerox Corporation
    Inventors: Howard A. Mizes, Michael C. Mongeon, Helen HaeKyung Shin, Yeqing Zhang
  • Publication number: 20130265419
    Abstract: A method for determining parking availability includes receiving video data from a sequence of frames taken from an image capture device that is monitoring a parking area. The method includes determining background and foreground images in an initial frame of the sequence of frames. The method further includes updating the background and foreground images in each of the sequence of frames following the initial frame. The method also includes determining a length of a parking space using the determined background and foreground images. The determining includes computing a pixel distance between a foreground image and one of an adjacent foreground image and an end of the parking area. The determining further includes mapping the pixel distance to an actual distance for estimating the length of the parking space.
    Type: Application
    Filed: April 6, 2012
    Publication date: October 10, 2013
    Applicant: XEROX CORPORATION
    Inventors: Orhan Bulan, Yao Rong Wang, Zhigang Fan, Edgar A. Bernal, Robert P. Loce, Yeqing Zhang
  • Publication number: 20130201233
    Abstract: A method for calibrating in situ a plurality of printheads in an imaging device has been developed. Firing signals operate a plurality of printheads to form ink test patterns on an image receiving member. Reflectance measurements of light reflected from the test patterns and optical density measurements for a portion of the patterns formed by only one printhead in the plurality of printheads are used to adjust the firing signals and enable the printheads to print within a predetermined range about an average reflectance value and a predetermined optical density.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 8, 2013
    Applicant: XEROX CORPORATION
    Inventors: Yeqing Zhang, Jeffrey J. Folkins, Alex S. Brougham
  • Patent number: 8456711
    Abstract: This closure provides image processing methods and apparatus for corner enhancing a digital image for rendering on an image output device. According to an exemplary method, the method determines whether or not image pixels are associated with a corner as a function of the USAN values generated for the image pixels. Subsequently, one or more pixels associated with a corner are modified to render a corner enhanced image.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: June 4, 2013
    Assignee: Xerox Corporation
    Inventors: Yeqing Zhang, Robert P. Loce
  • Publication number: 20130113855
    Abstract: A method of operating a printer enables the mass of the ink drops ejected by the printheads in the printer to maintained in an optimal range without measuring the drop mass being ejected by the inkjets in the printheads. After calibration of the printheads, the printheads are operated with electrical signals having different peak-to-peak voltages. The number of inoperable inkjets for each printhead is determined from image data of the ejected ink on the image receiving member and the number of inoperable inkjets for each printhead is compared to a predetermined threshold. The peak-to-peak voltage for the electrical signals used to operate a printhead is adjusted with reference to the number of inoperable inkjets and the predetermined threshold.
    Type: Application
    Filed: November 8, 2011
    Publication date: May 9, 2013
    Applicant: XEROX CORPORATION
    Inventors: Christine Ann Steurrys, David A. Tence, James D. Buehler, Yeqing Zhang, Jeffrey J. Folkins