Patents by Inventor Huijun Chen

Huijun 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: 11490821
    Abstract: The present disclosure provides a non-contact neck-based respiratory and pulse signal detection method and apparatus, and an imaging device. The method includes: acquiring 3D morphological information of a neck of a human body in real-time; and acquiring a respiratory signal and an electrocardiogram signal of the human body on the basis of the 3D morphological information of the neck.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: November 8, 2022
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Huijun Chen, Chunyao Wang, Chen Zhang, Haikun Qi, Qiang Zhang, Yajie Wang
  • Patent number: 11420183
    Abstract: This invention introduces a method of preparing a carbon-based sulfur-loading iron-containing adsorbent for mercury removal, which can solve the problems in the prior art that sulfur-rich heavy organic materials have low-value utilization and the elemental mercury in atmosphere is hard to be efficiently and economically removed by the existing mercury removal agents. A carbon-based sulfur-loading iron-containing adsorbent for mercury removal is prepared in this invention. The adsorbent with a porous structure is prepared in situ by performing steps such as chemical activation of sulfur-rich heavy organic materials that are rich in iron. The adsorbent prepared herein has good mercury removal performance in simulated coal-fired flue gas. This invention not only improves the utilization value of sulfur-rich heavy organic materials, but also prevents SOX pollution caused by the combustion of sulfur-rich heavy organic materials and controls mercury pollution in the coal-fired flue gas.
    Type: Grant
    Filed: March 28, 2020
    Date of Patent: August 23, 2022
    Assignees: Taiyuan University of Technology, China Shenhua Coal to Liquid & Chemical Co., ltd.
    Inventors: Jiancheng Wang, Qihuang Huo, Huijun Chen, Lina Han, Geping Shu, Liping Chang, Weiren Bao
  • Patent number: 11350902
    Abstract: An imaging system (100) includes a subject support (114) that supports a subject in an examination region (106). The imaging system further includes a detector (112) that detects a signal traversing the examination region, generating an output indicative of the examination region. The imaging system further includes a subject motion sensing system (118) that includes an optical system (206, 208, 214) that detects motion of the subject in the examination region and generates motion data indicative thereof. The imaging system further includes a console (122) that controls at least one of data acquisition or reconstruction based on the motion data.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: June 7, 2022
    Assignees: KONINKLIJKE PHILIPS N.V., TSINGHUA UNIVERSITY, UNIVERSITY OF WASHINGTON
    Inventors: Huijun Chen, Jinnan Wang, Chun Yuan
  • Publication number: 20200329976
    Abstract: The present disclosure provides a non-contact neck-based respiratory and pulse signal detection method and apparatus, and an imaging device. The method includes: acquiring 3D morphological information of a neck of a human body in real-time; and acquiring a respiratory signal and an electrocardiogram signal of the human body on the basis of the 3D morphological information of the neck.
    Type: Application
    Filed: October 24, 2018
    Publication date: October 22, 2020
    Inventors: Huijun CHEN, Chunyao WANG, Chen ZHANG, Haikun QI, Qiang ZHANG, Yajie WANG
  • Publication number: 20200238252
    Abstract: This invention introduces a method of preparing a carbon-based sulfur-loading iron-containing adsorbent for mercury removal, which can solve the problems in the prior art that sulfur-rich heavy organic materials have low-value utilization and the elemental mercury in atmosphere is hard to be efficiently and economically removed by the existing mercury removal agents. A carbon-based sulfur-loading iron-containing adsorbent for mercury removal is prepared in this invention. The adsorbent with a porous structure is prepared in situ by performing steps such as chemical activation of sulfur-rich heavy organic materials that are rich in iron. The adsorbent prepared herein has good mercury removal performance in simulated coal-fired flue gas. This invention not only improves the utilization value of sulfur-rich heavy organic materials, but also prevents SOX pollution caused by the combustion of sulfur-rich heavy organic materials and controls mercury pollution in the coal-fired flue gas.
    Type: Application
    Filed: March 28, 2020
    Publication date: July 30, 2020
    Inventors: Jiancheng WANG, Qihuang HUO, Huijun CHEN, Lina HAN, Geping SHU, Liping CHANG, Weiren BAO
  • Patent number: 9746536
    Abstract: A magnetic resonance system (10), and corresponding method, image a subject using a conversion-free interleaved black and bright blood imaging (cfIBBI) sequence. A MR scanner (12) is controlled to perform a plurality of repetitions of a black blood imaging sequence (52). The black blood imaging sequence (52) includes a tissue nulling sub-sequence followed by a black blood acquisition sub-sequence (56) performed a time interval (TI) after the tissue nulling sub-sequence. The MR scanner (12) is further controlled to, between successive repetitions of the black blood imaging sequence (52), perform a bright blood imaging sequence (54) including the tissue nulling sub-sequence followed by a bright blood acquisition sub-sequence (58) performed the time interval (TI) after the tissue nulling sub-sequence. The time intervals (TI) of the black blood imaging sequence (52) and the bright blood imaging sequence (54) are of the same duration.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: August 29, 2017
    Assignees: Koninklijke Philips N.V., University of Washington
    Inventors: Jinnan Wang, Huijun Chen, Peter Boernert, Chun Yuan
  • Patent number: 9529065
    Abstract: Interleaved black/bright imaging (IBBI) is performed using a magnetic resonance (MR) scanner wherein the black blood module of the IBBI includes: applying a first flow sensitization gradient; applying a spoiler gradient after applying the first flow sensitization gradient; applying a second flow sensitization gradient after applying the spoiler gradient wherein the second flow sensitization gradient has area equal to the first flow sensitization gradient but of opposite polarity; applying a slice selective radio frequency excitation pulse after applying the spoiler gradient; and performing a MR readout after applying the second flow sensitization gradient and after applying the slice selective radio frequency excitation wherein the readout acquires MR imaging data having blood signal suppression in the region excited by the slice selective radio frequency excitation pulse.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: December 27, 2016
    Assignees: Koninklijke Philips N.V., University of Washington
    Inventors: Jinnan Wang, Huijun Chen, Peter Börnert, Chun Yuan
  • Publication number: 20160310093
    Abstract: An imaging system (100) includes a subject support (114) that supports a subject in an examination region (106). The imaging system further includes a detector (112) that detects a signal traversing the examination region, generating an output indicative of the examination region. The imaging system further includes a subject motion sensing system (118) that includes an optical system (206, 208, 214) that detects motion of the subject in the examination region and generates motion data indicative thereof. The imaging system further includes a console (122) that controls at least one of data acquisition or reconstruction based on the motion data.
    Type: Application
    Filed: December 4, 2014
    Publication date: October 27, 2016
    Inventors: Huijun CHEN, Jinnan WANG, Chun YUAN
  • Publication number: 20150323636
    Abstract: A magnetic resonance system (10),and corresponding method, image a subject using a conversion-free interleaved black and bright blood imaging (cfIBBI) sequence. A MR scanner (12) is controlled to perform a plurality of repetitions of a black blood imaging sequence (52). The black blood imaging sequence (52) includes a tissue nulling sub-sequence followed by a black blood acquisition sub-sequence (56) performed a time interval (TI) after the tissue nulling sub-sequence. The MR scanner (12) is further controlled to, between successive repetitions of the black blood imaging sequence (52), perform a bright blood imaging sequence (54) including the tissue nulling sub-sequence followed by a bright blood acquisition sub-sequence (58) performed the time interval (TI) after the tissue nulling sub-sequence. The time intervals (TI) of the black blood imaging sequence (52) and the bright blood imaging sequence (54) are of the same duration.
    Type: Application
    Filed: December 12, 2013
    Publication date: November 12, 2015
    Inventors: JINNAN WANG, HUIJUN CHEN, PETER BOERNERT, CHUN YUAN
  • Publication number: 20140035581
    Abstract: Interleaved black/bright imaging (IBBI) is performed using a magnetic resonance (MR) scanner (10) wherein the black blood module (52) of the IBBI includes: applying a first flow sensitization gradient; applying a spoiler gradient after applying the first flow sensitization gradient; applying a second flow sensitization gradient after applying the spoiler gradient wherein the second flow sensitization gradient has area equal to the first flow sensitation gradient but of opposite polarity; applying a slice selective radio frequency excitation pulse after applying the spoiler gradient; and performing a MR readout after applying the second flow sensitization gradient and after applying the slice selective radio frequency excitation wherein the readout acquires MR imaging data having blood signal suppression in the region excited by the slice selective radio frequency excitation pulse.
    Type: Application
    Filed: April 12, 2012
    Publication date: February 6, 2014
    Applicants: UNIVERSITY OF WASHINGTON, KONINKLIJKE PHILIPS N.V.
    Inventors: Jinnan Wang, Huijun Chen, Peter Börnert, Chun Yuan