Patents by Inventor Chao ZUO

Chao ZUO 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: 11106029
    Abstract: An annular-irradiation high-resolution quantitative phase microimaging based on light intensity transfer equation is proposed here includes designing an annular aperture for the imaging system illumination; invoking the weak object approximation by using the parameters of annular illumination aperture and bright field microscopy to calculate a weak object optical transfer function (WOTF) on the basis of a partially coherent imaging theory; and collecting three intensity images by a camera and obtaining the quantitative phase image of object by resolving the light intensity transfer equation with a deconvolution algorithm.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: August 31, 2021
    Assignee: NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Qian Chen, Chao Zuo, Jiasong Sun, Shijie Feng, Yuzhen Zhang, Guohua Gu
  • Publication number: 20210232561
    Abstract: A data processing method includes: generating a service serial number for a target service according to a preset naming rule; obtaining service data of the target service; obtaining a target data table from a plurality of pre-configured data tables, according to the service serial number; and storing the service data to the target data table.
    Type: Application
    Filed: May 13, 2019
    Publication date: July 29, 2021
    Inventors: Xiang LU, Jianjiang XU, Yantao GAO, Wenbin NIE, Qin HUANG, Yu YANG, Qiang ZHANG, Lei FAN, Chao ZUO
  • Patent number: 11029144
    Abstract: A super-rapid three-dimensional measurement method and system based on an improved Fourier transform contour technique is disclosed.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: June 8, 2021
    Assignee: NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Qian Chen, Chao Zuo, Shijie Feng, Jiasong Sun, Yuzhen Zhang, Guohua Gu
  • Publication number: 20210112187
    Abstract: A high-illumination numerical aperture-based large field-of-view high-resolution microimaging device, and a method for iterative reconstruction, the device comprising an LED array (1), a stage (2), a condenser (3), a microscopic objective (5), a tube lens (6), and a camera (7), the LED array (1) being arranged on the forward focal plane of the condenser (3). Light emitted by the i-th lit LED unit (8) of the LED array (1) passes through the condenser (3) and converges to become parallel light illuminating a specimen (4) to be examined, which is placed on the stage (2); part of the diffracted light passing through the specimen (4) is collected by the microscopic objective (5), converged by the tube lens (6), and reaches the imaging plane of the camera (7), forming an intensity image recorded by the camera (1). The present device and method ensure controllable programming of the illumination direction, while also ensuring an illumination-numerical-aperture up to 1.
    Type: Application
    Filed: February 26, 2018
    Publication date: April 15, 2021
    Applicant: NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Qian CHEN, Chao ZUO, Jiasong SUN, Shijie FENG, Yuzhen ZHANG, Guohua GU
  • Publication number: 20210102801
    Abstract: A super-rapid three-dimensional measurement method and system based on an improved Fourier transform contour technique is disclosed.
    Type: Application
    Filed: February 26, 2018
    Publication date: April 8, 2021
    Applicant: NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Qian CHEN, Chao ZUO, Shijie FENG, Jiasong SUN, Yuzhen ZHANG, Guohua GU
  • Publication number: 20210103135
    Abstract: Annular-irradiation high-resolution quantitative phase microimaging based on light intensity transfer equation is proposed here. First, an annular aperture is designed for the imaging system illumination. And then, by invoking the weak object approximation, the parameters of annular illumination aperture and bright field microscopy are used to calculate a weak object optical transfer function (WOTF) on the basis of a partially coherent imaging theory. Finally, three intensity images are collected by a camera and the quantitative phase image of object is obtained by resolving the light intensity transfer equation with a deconvolution algorithm. The present method effectively resolves the tradeoff between the cloudy low-frequency noise and high-frequency fuzziness in the light intensity transfer equation, and the spatial imaging resolution of phase reconstruction is greatly increased.
    Type: Application
    Filed: February 26, 2018
    Publication date: April 8, 2021
    Applicant: NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Qian CHEN, Chao ZUO, Jiasong SUN, Shijie FENG, Yuzhen ZHANG, Guohua GU
  • Patent number: 10911672
    Abstract: A highly efficient three-dimensional image acquisition method based on multi-mode composite encoding and epipolar constraint, respectively using a fast imaging mode or a high-precision imaging mode, wherein in the fast imaging mode, two phase maps having different frequencies are obtained by four stripe gratings, and a high-frequency absolute phase is obtained by means of the epipolar constraint and a left-right consistency check, and the three-dimensional image is obtained by means of a mapping relationship between the phase and three-dimensional coordinates; and in the high precision imaging mode, two phases having different frequencies are obtained by means of N+2 stripe gratings, a low-frequency absolute phase is obtained by the epipolar constraint, and the unwrapping of a high-frequency phase is assisted by means of the low-frequency absolute phase, so as to obtain the high-frequency absolute phase, and finally, the three-dimensional image is obtained by the mapping relationship between the phase and the
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: February 2, 2021
    Assignee: NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Qian Chen, Chao Zuo, Shijie Feng, Jiasong Sun, Yuzhen Zhang, Guohua Gu
  • Publication number: 20200209604
    Abstract: The invention discloses a programmable annular LED illumination-based high efficiency quantitative phase microscopy imaging method, the proposed method comprising the following steps: the derivation of system optical transfer function in a partially coherent illumination imaging system; the derivation of phase transfer function with the weak object approximation under the illumination of tilted axially symmetric coherent point illumination source; the extension of illumination from an axially symmetric coherence point source to a discrete annular point source, and the optical transfer function can be treated as an incoherent superposition of each pair of tilted axially symmetric coherent point sources. The acquisition of raw intensity dataset; the implementation of deconvolution for quantitative phase reconstruction.
    Type: Application
    Filed: February 26, 2018
    Publication date: July 2, 2020
    Applicant: NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Qian CHEN, Chao Zuo, Jiasong SUN, Shijie FENG, Yuzhen ZHANG, Guohua GU
  • Publication number: 20200128180
    Abstract: A highly efficient three-dimensional image acquisition method based on multi-mode composite encoding and epipolar constraint, respectively using a fast imaging mode or a high-precision imaging mode, wherein in the fast imaging mode, two phase maps having different frequencies are obtained by four stripe gratings, and a high-frequency absolute phase is obtained by means of the epipolar constraint and a left-right consistency check, and the three-dimensional image is obtained by means of a mapping relationship between the phase and three-dimensional coordinates; and in the high precision imaging mode, two phases having different frequencies are obtained by means of N+2 stripe gratings, a low-frequency absolute phase is obtained by the epipolar constraint, and the unwrapping of a high-frequency phase is assisted by means of the low-frequency absolute phase, so as to obtain the high-frequency absolute phase, and finally, the three-dimensional image is obtained by the mapping relationship between the phase and the
    Type: Application
    Filed: February 26, 2018
    Publication date: April 23, 2020
    Applicant: Nanjing University of Science and Technology
    Inventors: Qian Chen, Chao Zuo, Shijie Feng, Jiasong Sun, Yuzhen Zhang, Guohua Gu
  • Patent number: 10573553
    Abstract: Disclosed examples provide processes for fabricating a semiconductor product and for forming a patterned stack with an aluminum layer and a tungsten layer, including forming a first dielectric layer on a gate structure and on first and second regions of a substrate, forming a diffusion barrier layer on the first dielectric layer, forming a tungsten layer on the diffusion barrier layer, forming an aluminum layer on the tungsten layer, forming a hard mask on the aluminum layer, forming a patterned resist mask which covers the hard mask above the first region and exposes the hard mask layer above the second region, dry etching the hard mask and the aluminum layer above the second region using the patterned resist mask layer, removing the resist mask, and dry etching the tungsten layer using the hard mask layer to expose the first dielectric layer above the second region.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: February 25, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Hong Yang, Abbas Ali, Yaping Chen, Chao Zuo, Seetharaman Sridhar, Yunlong Liu
  • Publication number: 20190157142
    Abstract: Disclosed examples provide processes for fabricating a semiconductor product and for forming a patterned stack with an aluminum layer and a tungsten layer, including forming a first dielectric layer on a gate structure and on first and second regions of a substrate, forming a diffusion barrier layer on the first dielectric layer, forming a tungsten layer on the diffusion barrier layer, forming an aluminum layer on the tungsten layer, forming a hard mask on the aluminum layer, forming a patterned resist mask which covers the hard mask above the first region and exposes the hard mask layer above the second region, dry etching the hard mask and the aluminum layer above the second region using the patterned resist mask layer, removing the resist mask, and dry etching the tungsten layer using the hard mask layer to expose the first dielectric layer above the second region.
    Type: Application
    Filed: January 7, 2019
    Publication date: May 23, 2019
    Inventors: Hong YANG, Abbas ALI, Yaping CHEN, Chao ZUO, Seetharaman SRIDHAR, Yunlong LIU
  • Patent number: 10211096
    Abstract: Disclosed examples provide processes for fabricating a semiconductor product and for forming a patterned stack with an aluminum layer and a tungsten layer, including forming a first dielectric layer on a gate structure and on first and second regions of a substrate, forming a diffusion barrier layer on the first dielectric layer, forming a tungsten layer on the diffusion barrier layer, forming an aluminum layer on the tungsten layer, forming a hard mask on the aluminum layer, forming a patterned resist mask which covers the hard mask above the first region and exposes the hard mask layer above the second region, dry etching the hard mask and the aluminum layer above the second region using the patterned resist mask layer, removing the resist mask, and dry etching the tungsten layer using the hard mask layer to expose the first dielectric layer above the second region.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: February 19, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Hong Yang, Abbas Ali, Yaping Chen, Chao Zuo, Seetharaman Sridhar, Yunlong Liu
  • Patent number: 10180564
    Abstract: A transport-of-intensity imaging system is proposed which incorporates a control element positioned in an optical relay system, such as a 4f optical relay system, between a microscope system for generating an image of a specimen, and an image capturing device. The control element is located with an optical relay system, and is controllable to vary the focal plane without changing the spacing of the specimen and the image capturing device. In one form the control element is an electronically tunable lens (ETL). In another form, the control element is a spatial light modulator (SLM). The arrangement may include a beam splitter arrangement for generating a plurality of beams, which are not all subject to the same control element, such that multiple images with different focal planes are captured from the respective beams.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: January 15, 2019
    Assignee: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Anand Krishna Asundi, Chao Zuo
  • Publication number: 20160139388
    Abstract: A transport-of-intensity imaging system is proposed which incorporates a control element positioned in an optical relay system, such as a 4f optical relay system, between a microscope system for generating an image of a specimen, and an image capturing device. The control element is located with an optical relay system, and is controllable to vary the focal plane without changing the spacing of the specimen and the image capturing device. In one form the control element is an electronically tunable lens (ETL). In another form, the control element is a spatial light modulator (SLM). The arrangement may include a beam splitter arrangement for generating a plurality of beams, which are not all subject to the same control element, such that multiple images with different focal planes are captured from the respective beams.
    Type: Application
    Filed: July 2, 2014
    Publication date: May 19, 2016
    Inventors: Anand Krishna ASUNDI, Chao ZUO