Patents by Inventor Xinqiao (Chiao) Liu

Xinqiao (Chiao) 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).

  • Publication number: 20180245297
    Abstract: A highway safety protective fence includes a processed steel guardrail board and a protective sleeve, wherein the protective sleeve is sleeved to an outer surface of the processed steel guardrail board. Furthermore, a method for manufacturing the highway safety protective fence includes steps of: conveying an original steel guardrail board to a quenching furnace through a temperature withstanding ceramic stick, quenching, conveying to a constant temperature furnace, staying, conveying to a quenching oil solution tank, cooling in sequence and obtaining a processed steel guardrail board; conveying the processed steel guardrail board to a rubber coating machine through a conveying belt, and packaging the processed steel guardrail board with the protective sleeve to obtain the highway safety protective fence. In the highway safety protective fence provided by the present invention, the steel guardrail board is quenched to greatly increase the safety factor.
    Type: Application
    Filed: May 2, 2018
    Publication date: August 30, 2018
    Inventor: Xinqiao He
  • Publication number: 20180173303
    Abstract: A head mounted display (HMD) includes one or more light field cameras for tracking one or both eyes of a user wearing the HMD. The HMD optionally includes light sources positioned inside the HMD and that illuminate one or both of the eyes of the user. The light field camera captures a plenoptic image of the user's eye. The plenoptic image includes light intensity data and direction data of the captured light rays. An eye tracking system updates a 3D light field model of the user's eye based on depth information from the plenoptic image frame. The eye tracking system identifies an iris plane of the user's eye using the 3D light field model. The eye tracking system determines a gaze direction of the user's eye by identifying the normal to the center of the iris plane.
    Type: Application
    Filed: December 21, 2016
    Publication date: June 21, 2018
    Inventors: Xinqiao Liu, Elias Daniel Guestrin
  • Publication number: 20180035061
    Abstract: An imaging array and method for fabricating the same are disclosed. The imaging array includes a semiconductor substrate having a plurality of VIS pixel sensors and a plurality of SWIR readout circuits fabricated therein. An insulating layer is deposited on the semiconductor substrate. The insulating array has wells overlying the SWIR pixel sensors. A plurality of SWIR photodiodes are deposited in the wells. Each SWIR photodiode is located in a corresponding one of the wells and is connected by an electrically conducting path with the SWIR readout circuit underlying the SWIR photodiode. An electrically conducting transparent electrode overlying the SWIR photodiodes is connected to each of the SWIR photodiodes.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 1, 2018
    Applicant: BAE Systems Imaging Solutions Inc.
    Inventors: Xinqiao Liu, Boyd Fowler
  • Publication number: 20170332560
    Abstract: A flowerpot made of waste tires, includes: a suspended tire, a circular bottom plate, a hose clamp, a fixed disk and a supporting tube; wherein the fixed disk is fixed on a ground, the supporting tube is set up from a center of the fixed disk, the circular bottom plate has through holes for matching with the supporting tube; the suspended tire, the circular bottom plate and the hose clamp pass through the supporting tube, and the hose clamp tightly clamps a top portion of the supporting tube on the circular plate without any slip; the suspended tire is provided above the circular plate; the suspended tire, the circular bottom plate and the hose clamp form a flowerpot body structure suspended on the supporting tube; the suspended tire is filled with soil for planting plants.
    Type: Application
    Filed: May 7, 2017
    Publication date: November 23, 2017
    Inventor: Xinqiao He
  • Publication number: 20170291854
    Abstract: A sintering-free inorganic ceramic brick-plate and its preparation method are disclosed. The sintering-free inorganic ceramic brick-plate includes following components by mass parts: 25-40 parts of magnesium oxide; 20-35 parts of magnesium chloride; 20-30 parts of fumed silica; 10-20 parts straw powders; 0.1-0.3 parts of graphene powders with a particle size of 2000 meshes; and 0.2-0.4 parts of airgel powders with a particle size of 100 nm. Compared with the prior art, the present invention utilizes a variety of raw natural non-toxic natural mineral raw materials, namely, the graphene powders with the particle size of 2000 meshes and the airgel powders with the particle size of 100 nm for mixing, and then the mixed raw materials can be solidified at room temperature and form sheets, and then the surface of the sheets is processed through printing or spraying glaze, so as to achieve the effect of high-grade tiles and natural marble.
    Type: Application
    Filed: June 27, 2017
    Publication date: October 12, 2017
    Inventor: Xinqiao He
  • Publication number: 20170188987
    Abstract: An x-ray imaging system and a method for retrofitting existing x-ray generators to allow those generators to be controlled by a digital x-ray imaging system are disclosed. The x-ray imaging system includes an imaging array and an image controller. The imaging array is configured to be positioned within a patient's mouth, the imaging array acquiring an image of the patient's teeth when the patient's head is illuminated with x-rays. The imaging array includes an x-ray dosimeter that provides an x-ray exposure signal indicative of an x-ray exposure received by the imaging array. The image controller is coupled to the imaging array and receives the x-ray exposure signal, the image controller includes a first wireless link that controls an x-ray generator by initiating a pre-programmed x-ray exposure. The wireless controllable switch can be used to replace an existing manually controlled switch in an existing x-ray generator.
    Type: Application
    Filed: January 5, 2016
    Publication date: July 6, 2017
    Applicant: BAE Systems Imaging Solutions Inc.
    Inventors: Xinqiao Liu, Boyd Fowler
  • Patent number: 9692975
    Abstract: Embodiments of the disclosure compensate for global movement and in-scene movement during image capture by a computing device. A sequence of images is accessed by the computing device. Accelerometer readings and/or gyroscope readings corresponding to each of the accessed images are used by the computing device for calculating global movement among each of the accessed images. Each of the accessed images is re-aligned based on the calculated global movement. The re-aligned images are combined into a single output image. The intensity values of each of the pixels in the re-aligned images are compared with the intensity values of each of the corresponding pixels in a reference image. Based on the comparison, the intensity values associated with the pixels in the re-aligned images are selectively accumulated to generate an output image that is blur-free, low-light enhanced, and high dynamic range.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: June 27, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Xinqiao Liu
  • Patent number: 9642941
    Abstract: Implantable modular hydrogels to aid in salivary gland restoration and associated methods are provided. In one embodiment, the present disclosure provides for a hydrogel network comprising: a hyaluronic acid macromer crosslinked with a multiblock copolymer.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: May 9, 2017
    Assignee: WILLIAM MARSH RICE UNIVERSITY
    Inventors: Robert L. Witt, Xinqiao Jia, Swati Pradham Bhatt, Mary C. Farach-Carson, Daniel A. Harrington
  • Patent number: 9597412
    Abstract: A method for enhancing chondrogenesis in a subject in need thereof comprises administering to the subject an effective amount of a pharmaceutical composition comprising a growth factor bound to hyaluronic acid (HA)-based hydrogel particles (HGPs). The hyaluronic acid (HA)-based hydrogel particles (HGPs) are conjugated with a heparan sulfate proteoglycan (HSPG). Related medicaments and methods for preparing the medicaments are provided.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: March 21, 2017
    Assignee: University of Delaware
    Inventors: Catherine E. Safran, Mary C. Farach-Carson, Xinqiao Jia, Padma P. Srinivasan, Amit Jha
  • Patent number: 9591275
    Abstract: A hybrid imaging array and method for using the same is disclosed. The image array includes a low-light imaging array and a color imaging array. The two imaging arrays can be utilized separately or in conjunction with one another. The low-light imaging array is optimized for night vision or situations in which the light levels are too low to allow a conventional color image to be formed by the color imaging array. The color imaging array is optimized for daylight or color photography. The low-light imaging array can be utilized in conjunction with the color imaging array to provide a color image with reduced noise.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: March 7, 2017
    Assignee: BAE Systems Imaging Solutions Inc.
    Inventors: Xinqiao Liu, Feng Xiao, Boyd Fowler
  • Patent number: 9374545
    Abstract: A column readout amplifier and imaging array using the same method are disclosed. The column readout amplifier includes a signal amplifier having an amplifier signal output, a first filter capacitor, a buffer amplifier having a buffer amplifier input and a buffer amplifier output, and a switching network. The switching network connects the amplifier signal output to the buffer amplifier input and the buffer amplifier output to the first filter capacitor during a first time period, and connects the amplifier signal output directly to the first filter capacitor during a second time period. The time periods can be of fixed duration or determined by the difference in potential between the input and output of the buffer amplifier. The column readout amplifier can be used in an imaging array to readout columns of pixels.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: June 21, 2016
    Assignee: BAE Systems Imaging Solutions Inc.
    Inventors: Boyd Fowler, Hung Do, Xinqiao Liu
  • Publication number: 20150076321
    Abstract: A column readout amplifier and imaging an-ay using the same method are disclosed. The column readout amplifier includes a signal amplifier having an amplifier signal output, a first filter capacitor, a buffer amplifier having a buffer amplifier input and a buffer amplifier output, and a switching network. The switching network connects the amplifier signal output to the buffer amplifier input and the buffer amplifier output to the first filter capacitor during a first time period, and connects the amplifier signal output directly to the first filter capacitor during a second time period. The time periods can be of fixed duration or determined by the difference in potential between the input and output of the buffer amplifier. The column readout amplifier can be used in an imaging array to readout columns of pixels.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Inventors: Boyd Fowler, Hung Do, Xinqiao Liu
  • Publication number: 20140333808
    Abstract: An image sensor that includes a first imaging array and a FPGA processor that processes images captured by the imaging array to provide information about the scene projected on the first imaging array is disclosed. The FPGA processor is connected to the first imaging array and includes an interface for receiving images from the first imaging array and an interface to an image storage memory that stores a plurality of images. The FPGA implements a plurality of image processing functions in the gates of the FPGA. The image processing functions processing one of the images stored in the image storage memory to extract a quantity related to the one of the images. The FPGA also includes an I/O interface used by the FPGA to output the quantity to a device external to the image sensor.
    Type: Application
    Filed: May 10, 2013
    Publication date: November 13, 2014
    Applicant: BAE Systems Imaging Solutions, Inc.
    Inventors: Boyd Fowler, Xinqiao Liu
  • Publication number: 20140307110
    Abstract: Embodiments of the disclosure compensate for global movement and in-scene movement during image capture by a computing device. A sequence of images is accessed by the computing device. Accelerometer readings and/or gyroscope readings corresponding to each of the accessed images are used by the computing device for calculating global movement among each of the accessed images. Each of the accessed images is re-aligned based on the calculated global movement. The re-aligned images are combined into a single output image. The intensity values of each of the pixels in the re-aligned images are compared with the intensity values of each of the corresponding pixels in a reference image. Based on the comparison, the intensity values associated with the pixels in the re-aligned images are selectively accumulated to generate an output image that is blur-free, low-light enhanced, and high dynamic range.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 16, 2014
    Inventor: Xinqiao Liu
  • Publication number: 20140294960
    Abstract: Implantable modular hydrogels to aid in salivary gland restoration and associated methods are provided. In one embodiment, the present disclosure provides for a hydrogel network comprising: a hyaluronic acid macromer crosslinked with a multiblock copolymer.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventors: Robert L. Witt, Xinqiao Jia, Swati Pradham Bhatt, Mary C. Farach-Carson, Daniel A. Harrington
  • Patent number: 8817145
    Abstract: A camera adapted for taking pictures of a moving scene is disclosed. The camera includes an imaging array, a plurality of charge-coupled device (CCD) shift registers, and a controller. The imaging array includes a plurality of CMOS pixel sensors organized as a plurality of columns and rows. The image moves in the column direction. One CCD shift register corresponds to each of the columns. Each CMOS pixel sensor includes a first transfer gate that transfers charge accumulated in the pixel sensor to a corresponding cell in the CCD shift register. The controller controls the CCD shift registers such that charge stored in a first cell in a CCD shift register is moved to a second cell in the CCD shift register where the charge is combined with charge accumulated by the pixel sensor that is connected to the second cell, the combined charge being generated from the same image pixel.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: August 26, 2014
    Assignee: BAE Systems Imaging Solutions Inc.
    Inventors: Boyd Fowler, Xinqiao Liu, Steven Onishi
  • Patent number: 8779346
    Abstract: An apparatus and method for forming a digital image are disclosed. The apparatus includes a plurality of pixel sensors and a controller. Each sensor includes a photodiode, a floating diffusion node that can be selectively connected to said photodiode or a reset voltage, and an analog-to-digital converter (ADC) connected to the floating diffusion node, the ADC converting a voltage on the floating diffusion node to a digital value. Each pixel sensor also includes an output circuit that connects the ADC to a bus. The apparatus also includes a controller that causes the ADCs to operate in parallel to convert the voltages on the floating diffusion nodes to the digital values in a time that is less than the time needed for the floating diffusion node to acquire ten electron equivalents of noise. The optional apparatus includes circuitry that allows correlated double sampling to be performed in each sensor.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: July 15, 2014
    Assignee: BAE Systems Imaging Solutions Inc.
    Inventors: Boyd Fowler, Xinqiao Liu
  • Publication number: 20140005111
    Abstract: A method for enhancing chondrogenesis in a subject in need thereof comprises administering to the subject an effective amount of a pharmaceutical composition comprising a growth factor bound to hyaluronic acid (HA)-based hydrogel particles (HGPs). The hyaluronic acid (HA)-based hydrogel particles (HGPs) are conjugated with a heparan sulfate proteoglycan (HSPG). Related medicaments and methods for preparing the medicaments are provided.
    Type: Application
    Filed: March 16, 2012
    Publication date: January 2, 2014
    Applicant: UNIVERSITY OF DELAWARE
    Inventors: Catherine B. Safran, Mary C. Farach-Carson, Xinqiao Jia, Padma P. Srinivasa, Amit Jha
  • Publication number: 20130299674
    Abstract: An apparatus and method for forming a digital image are disclosed. The apparatus includes a plurality of pixel sensors and a controller. Each sensor includes a photodiode, a floating diffusion node that can be selectively connected to said photodiode or a reset voltage, and an analog-to-digital converter (ADC) connected to the floating diffusion node, the ADC converting a voltage on the floating diffusion node to a digital value. Each pixel sensor also includes an output circuit that connects the ADC to a bus. The apparatus also includes a controller that causes the ADCs to operate in parallel to convert the voltages on the floating diffusion nodes to the digital values in a time that is less than the time needed for the floating diffusion node to acquire ten electron equivalents of noise. The optional apparatus includes circuitry that allows correlated double sampling to be performed in each sensor.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 14, 2013
    Inventors: Boyd Fowler, Xinqiao Liu
  • Publication number: 20130258153
    Abstract: A camera adapted for taking pictures of a moving scene is disclosed. The camera includes an imaging array, a plurality of charge-coupled device (CCD) shift registers, and a controller. The imaging array includes a plurality of CMOS pixel sensors organized as a plurality of columns and rows. The image moves in the column direction. One CCD shift register corresponds to each of the columns. Each CMOS pixel sensor includes a first transfer gate that transfers charge accumulated in the pixel sensor to a corresponding cell in the CCD shift register. The controller controls the CCD shift registers such that charge stored in a first cell in a CCD shift register is moved to a second cell in the CCD shift register where the charge is combined with charge accumulated by the pixel sensor that is connected to the second cell, the combined charge being generated from the same image pixel.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 3, 2013
    Inventors: Boyd Fowler, Xinqiao Liu, Steven Onishi