Patents by Inventor Baoquan Chen

Baoquan Chen 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: 10639850
    Abstract: The present invention discloses a method of planning a 3D printing path based on Fermat's spiral. The method comprises generating a plurality of iso-contours for a given topological connected region, wherein adjacent iso-contours of the plurality of iso-contours have a set spacing therebetween. The method also comprises constructing a spiral connected graph according to the plurality of iso-contours and generating a spiral connected tree according to the spiral connected graph. The method further comprises connecting a subset of the plurality of iso-contours according to the spiral connected tree to form a connected Fermat spiral. The method additionally comprises smoothing the connected Fermat spiral through a global optimization method based on a width of the printing path being consistent.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: May 5, 2020
    Assignee: Shandong University
    Inventors: Baoquan Chen, Daniel Cohen-Or, Hao Zhang, Haisen Zhao
  • Publication number: 20180326669
    Abstract: The present invention discloses a method of planning a 3D printing path based on Fermat's spiral. The method comprises generating a plurality of iso-contours for a given topological connected region, wherein adjacent iso-contours of the plurality of iso-contours have a set spacing therebetween. The method also comprises constructing a spiral connected graph according to the plurality of iso-contours and generating a spiral connected tree according to the spiral connected graph. The method further comprises connecting a subset of the plurality of iso-contours according to the spiral connected tree to form a connected Fermat spiral. The method additionally comprises smoothing the connected Fermat spiral through a global optimization method based on a width of the printing path being consistent.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 15, 2018
    Inventors: Baoquan CHEN, Daniel COHEN-OR, Hao ZHANG, Haisen ZHAO
  • Patent number: 9703128
    Abstract: An integrated circuit is configured for optical communication via an optical polymer stack located on top of the integrated circuit. The optical polymer stack may include one or more electro-optic polymer devices including an electro-optic polymer. The electro-optic polymer may include a host polymer and a second order nonlinear chromomophore, the host polymer and the chromophore both including aryl groups configured to interact with one another to provide enhanced thermal and/or temporal stability.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: July 11, 2017
    Assignee: BRPHOTONICS PRODUTOS OPTOELETRONICOS LTDA
    Inventors: Baoquan Chen, Hui Chen, Raluca Dinu, Diyun Huang, Bing Li, Eric Miller, Danliang Jin, Christopher A. Wiklof, Guomin Yu
  • Patent number: 9547885
    Abstract: Provided are an image restoration method and device. The method comprises: processing image blocks, which are initially registered, to acquire connection curves among the image blocks; constructing an ambient field of images to be restored by means of the connection curve; by minimizing energy of the connection curve in the ambient field, registering the image blocks; and performing image filling on the registered image blocks to acquire a restored image. The device comprises: a processing unit used for processing the image blocks, which are initially registered, to acquire the connection curve among the image blocks; an ambient field construction unit used for constructing the ambient field of the image to be restored by means of the connection curve; a registering unit used for registering the image blocks by minimizing the energy of the connection curve in the ambient field; and a filling unit used for performing image filling on the registered image blocks to acquire the restored image.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: January 17, 2017
    Assignee: Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences
    Inventors: Hui Huang, Kangxue Yin, Minglun Gong, Baoquan Chen, Yunhai Wang
  • Patent number: 9547793
    Abstract: Disclosed are a method and system for dividing a plant organ point cloud. According to information about lamina point cloud blocks and stem point cloud blocks in a previous adjacent point cloud frame of a point cloud frame to be divided and a flatness feature of a data point of the point cloud frame to be divided, a point cloud of the point cloud frame to be divided is divided into lamina point cloud blocks and stem point cloud blocks; taking the adjacent point cloud frame as a reference to divide the point cloud frame facilitates the divided organ in maintaining the consistency of time and space between adjacent point cloud frames, and improves the accuracy of plant organ division.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: January 17, 2017
    Assignee: Shenzhen Institutes of Advanced Technology
    Inventors: Yangyan Li, Baoquan Chen, Xiaochen Fan
  • Patent number: 9535215
    Abstract: A low index of refraction hybrid optical cladding may be formed from a fluorinated sol-gel. An electro-optic device may include a poled organic chromophore-loaded modulation layer (electro-optic polymer) and at least one adjacent fluorinated hybrid sol-gel cladding layer.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: January 3, 2017
    Assignee: BRPHOTONICS PRODUCTOS OPTOELECTRONICOS LTDA.
    Inventors: Danliang Jin, Guomin Yu, Hui Chen, Baoquan Chen
  • Publication number: 20160349547
    Abstract: An integrated circuit is configured for optical communication via an optical polymer stack located on top of the integrated circuit. The optical polymer stack may include one or more electro-optic polymer devices including an electro-optic polymer. The electro-optic polymer may include a host polymer and a second order nonlinear chromomophore, the host polymer and the chromophore both including aryl groups configured to interact with one another to provide enhanced thermal and/or temporal stability.
    Type: Application
    Filed: November 24, 2014
    Publication date: December 1, 2016
    Inventors: BAOQUAN CHEN, HUI CHEN, RALUCA DINU, DIYUN HUANG, BING LI, ERIC MILLER, DANLIANG JIN, CHRISTOPHER A. WIKLOF, GUOMIN YU
  • Publication number: 20160203636
    Abstract: A method for extracting a skeleton form a point cloud includes: obtaining inputted point cloud sampling data; contracting the point cloud using an iterative formula and obtaining skeleton branches, the iterative formula is: argmin X ? ? i ? I ? ? ? j ? J ? ? ? x i - q i ? ? ? ? ( ? x j - q j ? ) + R ? ( X ) , ? wherein R ? ( X ) = ? i ? I ? ? ? i ? ? i ? ? I ? \ ? { i } ? ? ? ? ( ? x i - x i ? ? ) ? i ? ? x i - x i ? ? , ? ? ( r ) = ? - 4 ? ? r 2 h 2 , wherein J represents a point set of the point cloud sampling data, q represents the sampling points in the point set J, I represents a neighborhood point set of the sampling points q, x represents the neighborhood points in the neighborhood point set I, R is a regular term, ? is a weighting coefficient, h is a neighborhood radius of the neighborhood point set I, and ? is a distribution coefficient; and connecti
    Type: Application
    Filed: September 13, 2013
    Publication date: July 14, 2016
    Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES
    Inventors: Hui HUANG, Shihao WU, Baoquan CHEN, Liangliang NAN
  • Patent number: 9390552
    Abstract: A method for extracting a skeleton form a point cloud includes: obtaining inputted point cloud sampling data; contracting the point cloud using an iterative formula and obtaining skeleton branches, the iterative formula is: arg ? ? min X ? ? i ? I = ? ? j ? J ? ? x i - q i ? ? ? ? ( ? x j - q j ? ) + R ? ( X ) , wherein R ? ( X ) = ? i ? I ? ? i ? ? i ? ? I / { i } ? ? ? ( ? x i - x i ? ? ) ? i ? ? x i - x i ? ? , ? ? ( r ) = ? 4 ? ? r 2 h 2 , wherein J represents a point set of the point cloud sampling data, q represents the sampling points in the point set J, I represents a neighborhood point set of the sampling points q, x represents the neighborhood points in the neighborhood point set I.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: July 12, 2016
    Assignee: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES
    Inventors: Hui Huang, Shihao Wu, Baoquan Chen, Liangliang Nan
  • Publication number: 20150379350
    Abstract: Disclosed are a method and system for dividing a plant organ point cloud. According to information about lamina point cloud blocks and stem point cloud blocks in a previous adjacent point cloud frame of a point cloud frame to be divided and a flatness feature of a data point of the point cloud frame to be divided, a point cloud of the point cloud frame to be divided is divided into lamina point cloud blocks and stem point cloud blocks; taking the adjacent point cloud frame as a reference to divide the point cloud frame facilitates the divided organ in maintaining the consistency of time and space between adjacent point cloud frames, and improves the accuracy of plant organ division.
    Type: Application
    Filed: September 13, 2013
    Publication date: December 31, 2015
    Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
    Inventors: Yangyan LI, Baoquan CHEN, Xiaochen FAN
  • Publication number: 20150363906
    Abstract: Provided are an image restoration method and device. The method comprises: processing image blocks, which are initially registered, to acquire connection curves among the image blocks; constructing an ambient field of images to be restored by means of the connection curve; by minimizing energy of the connection curve in the ambient field, registering the image blocks; and performing image filling on the registered image blocks to acquire a restored image. The device comprises: a processing unit used for processing the image blocks, which are initially registered, to acquire the connection curve among the image blocks; an ambient field construction unit used for constructing the ambient field of the image to be restored by means of the connection curve; a registering unit used for registering the image blocks by minimizing the energy of the connection curve in the ambient field; and a filling unit used for performing image filling on the registered image blocks to acquire the restored image.
    Type: Application
    Filed: September 13, 2013
    Publication date: December 17, 2015
    Applicant: SHENZHEN INSTITUTES OF ADVANDED TECHNOLOGY CHINESE ACADEMY OF SCIENCES
    Inventors: Hui HUANG, Kangxue Yin, Minglun Gong, Baoquan Chen, Yunhai Wang
  • Patent number: 8934741
    Abstract: An integrated circuit is configured for optical communication via an optical polymer stack located on top of the integrated circuit. The optical polymer stack may include one or more electro-optic polymer devices including an electro-optic polymer. The electro-optic polymer may include a host polymer and a second order nonlinear chromomophore, the host polymer and the chromophore both including aryl groups configured to interact with one another to provide enhanced thermal and/or temporal stability.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: January 13, 2015
    Assignee: Brphotonics Produtos Optoelectronicos LTDA
    Inventors: Baoquan Chen, Hui Chen, Raluca Dinu, Diyun Huang, Bing Li, Eric Miller, Danliang Jin, Christopher A. Wiklof, Guomin Yu
  • Publication number: 20140302250
    Abstract: According to an embodiment, an electro-optic polymer comprises a host polymer and a guest nonlinear optical chromophore having the structure D-?-A, wherein: D is a donor, ? is a ?-bridge, and A is an acceptor; a bulky substituent group is covalently attached to at least one of D, ?, or A; and the bulky substituent group has at least one non-covalent interaction with part of the host polymer that impedes chromophore depoling.
    Type: Application
    Filed: December 3, 2013
    Publication date: October 9, 2014
    Applicant: GIGOPTIX, INC.
    Inventors: BAOQUAN CHEN, DANLIANG JIN, GUOMIN YU, HUI CHEN, DIYUN HUANG
  • Patent number: 8718393
    Abstract: An urban scenes reconstruction method includes: acquiring digital data of a three-dimensional subject, the digital data comprising a 2D photograph and a 3D scan; fusing the 3D scan and the 2D photograph to create a depth-augmented photograph; decomposing the depth-augmented photograph into a plurality of constant-depth layers; detecting repetition patterns of each constant-depth layer; and using the repetitions to enhance the 3D scan to generate a polygon-level 3D reconstruction.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: May 6, 2014
    Assignee: Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences
    Inventors: Baoquan Chen, Liangliang Nan, Qian Zheng
  • Patent number: 8618241
    Abstract: According to an embodiment, an electro-optic polymer comprises a host polymer and a guest nonlinear optical chromophore having the structure D-?-A, wherein: D is a donor, ? is a ?-bridge, and A is an acceptor; a bulky substituent group is covalently attached to at least one of D, ?, or A; and the bulky substituent group has at least one non-covalent interaction with part of the host polymer that impedes chromophore depoling.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: December 31, 2013
    Assignee: GigOptix, Inc.
    Inventors: Baoquan Chen, Danliang Jin, Guomin Yu, Hui Chen, Diyun Huang
  • Patent number: 8517525
    Abstract: The invention relates to an ink cartridge for an inkjet printer, which comprises a cartridge body, a detection mechanism and a tension generating component, wherein the cartridge body comprises an ink storage cavity and an ink outlet; the detection mechanism for detecting the ink cartridge and the ink level comprises a first detection component which is matched with a first sensor on the printer, a second detection component which is matched with a second sensor on the printer, and an offsetting component; the second detection component comprises a movable member and a shaft which is arranged inside the cartridge body; the movable member is connected with a rotating shaft of the cartridge body through the shaft; and the tension generating component generates a tensile force to drive the movable member to move towards the direction opposite to the ink cartridge installation direction.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: August 27, 2013
    Assignee: Zhuhai Ninestar Management Co., Ltd.
    Inventors: Baoquan Chen, Zhizheng Jia
  • Publication number: 20130121631
    Abstract: A dual polarization quadrature modulator includes an input planar lightwave circuit (PLC) configured to deliver coherent light to a polymer-on substrate device including a plurality of electro-optic (E-O) polymer optical modulation waveguides configured to each phase modulate the coherent light, and the E-O polymer optical modulation waveguides output modulated coherent light to an output PLC configured to combine waveguide pairs of phase modulated light into Mach-Zehnder interferometric signals, combine pairs of Mach-Zehnder interferometric signals into quadrature modulated signals. A polarization rotator rotates modulated light from one of the quadrature modulated signals into an orthogonal polarization. The output PLC combines the quadrature-modulated and rotated quadrature modulated light to form a dual polarization, quadrature modulated light signal. The PLCs and the polymer-on-substrate device are integrated onto a single assembly substrate.
    Type: Application
    Filed: November 11, 2012
    Publication date: May 16, 2013
    Applicant: GIGOPTIX, INC.
    Inventors: GUOMIN YU, JONATHAN RANDEL C. MALLARI, ERIC MILLER, BAOQUAN CHEN, RALUCA DINU
  • Publication number: 20130033552
    Abstract: The invention relates to an ink cartridge for an inkjet printer, which comprises a cartridge body, a detection mechanism and a tension generating component, wherein the cartridge body comprises an ink storage cavity and an ink outlet; the detection mechanism for detecting the ink cartridge and the ink level comprises a first detection component which is matched with a first sensor on the printer, a second detection component which is matched with a second sensor on the printer, and an offsetting component; the second detection component comprises a movable member and a shaft which is arranged inside the cartridge body; the movable member is connected with a rotating shaft of the cartridge body through the shaft; and the tension generating component generates a tensile force to drive the movable member to move towards the direction opposite to the ink cartridge installation direction.
    Type: Application
    Filed: November 22, 2010
    Publication date: February 7, 2013
    Inventors: Baoquan Chen, Zhizheng Jia
  • Publication number: 20130004137
    Abstract: A low index of refraction hybrid optical cladding may be formed from a fluorinated sol-gel. An electro-optic device may include a poled organic chromophore-loaded modulation layer (electro-optic polymer) and at least one adjacent fluorinated hybrid sol-gel cladding layer.
    Type: Application
    Filed: March 28, 2012
    Publication date: January 3, 2013
    Applicant: Gigoptix, Inc.
    Inventors: Danliang Jin, Guomin Yu, Hui Chen, Baoquan Chen
  • Patent number: 8303097
    Abstract: The present invention relates to an ink cartridge for an ink jet printer, comprising an ink storage chamber formed by a concave housing (3) and a flexible and deformable film (2), a fluid outlet (5) connected with a fluid inlet of the printer, an information storage device (11), a locking mechanism (6) and a detection mechanism for detecting ink consumption. The detection mechanism comprises a lever component (4) positioned in the ink storage chamber and a force transmission component (10) positioned on the housing, made of deformable material and communicated with the ink storage chamber. This ink cartridge can solve the technical problems that the conventional detection mechanism of the ink cartridge of the ink jet printer is complex and low in reliability.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: November 6, 2012
    Assignee: Zhuhau Ninestar Management Co., Ltd.
    Inventor: Baoquan Chen