Patents by Inventor Chenguang Liu

Chenguang 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).

  • Patent number: 11076795
    Abstract: A defibrillator (AED) using an ECG analysis model or algorithm which can function in two different modes. The ECG analysis model is particularly suited for analysis during periods of CPR. Both modes of operation reach a shock decision in essentially the same way, where one or more ECG data segments indicate a shockable cardiac condition. In one mode of operation, the shock decision is irreversible once made. In another mode of operation, the shock decision is reversible if one or more subsequent ECG data segments indicate a no-shock decision. Improved specificity of the model is obtained without undue degradation of sensitivity to shockable ECG.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: August 3, 2021
    Assignee: Koninklijke Philips N.V.
    Inventors: Chenguang Liu, Stacy Earl Gehman
  • Publication number: 20210201545
    Abstract: Systems and methods described herein provide for retrieving, from a storage device, first image data previously captured by a client device. The systems and methods further detect a selection of a first image processing operation and perform the first image processing operation on the first image data to generate second image data. The systems and methods further detect a selection of a second image processing operation and perform the second image processing operation on the second image data to generate third image data. The systems and methods generate a message comprising the third image data.
    Type: Application
    Filed: December 31, 2019
    Publication date: July 1, 2021
    Inventors: Jean Luo, Oleksandr Grytsiuk, Chenguang Liu, Oleksii Gordiienko
  • Patent number: 10988561
    Abstract: A method for industrial production of a butadiene-isoprene copolymer rubber having a trans-1,4-structure (TBIR) and an apparatus for implementing the method. The production method includes: pumping a predetermined amount of a butadiene and an isoprene into a polymerization reactor, and performing bulk polymerization in the presence of a catalyst to obtain TBIR; performing extrusion, devolatilization, granulation and drying on the produced TBIR, and then packaging the produced TBIR; and separating unreacted monomers by a recovery and separation device followed by separately refining the unreacted monomers, and then returning the unreacted monomers to a batching device or a storage tank. The production apparatus has a recovery and refining unit, a polymerization unit, a post-treatment unit and a utility unit. By the production apparatus and the production method industrial production of TBIR by bulk polymerization is realized.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: April 27, 2021
    Assignees: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY, SHANDONG HUAJU POLYMER MATERIALS CO., LTD., CHAMBROAD CHEMICAL INDUSTRY RESEARCH INSTITUTE CO., LTD.
    Inventors: Aihua He, Yunsheng Ma, Huafeng Shao, Gang Yao, Chenguang Liu, Bo Luan, Riguo Wang
  • Patent number: 10894168
    Abstract: An automated external defibrillator (AED) is described which includes two electrocardiogram (ECG) analyzers. One of the ECG analyzers is suitable for use only for ECG which is signal-noise-free, and thus may be used during “hands-off” analysis periods in which no cardiopulmonary resuscitation (CPR) compressions can be provided. The length of the “hands-off” analysis period can be shortened by use of the second ECG analyzer in concert with the first ECG analyzer. Thus, a greater proportion of CPR time through the course of a cardiac arrest rescue is achieved.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: January 19, 2021
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Chenguang Liu, Eric Grant Halsne, Stacy Earl Gehman, Dawn Blilie Jorgenson, Vijay Aditya Tadipatri
  • Patent number: 10863157
    Abstract: A method comprising receiving an input video signal comprising high dynamic range (HDR) video for presentation on a display device, and receiving metadata for the input video signal. The metadata comprises a first Bezier curve for tone mapping of the HDR video that fits a first peak luminance level. The method further comprises adjusting the first Bezier curve to a second Bezier curve for tone mapping of the HDR video that fits a second peak luminance level. The display device has the second peak luminance level, and the second peak luminance level is different from the first peak luminance level. The method further comprises producing a tone mapped video signal of the input video signal utilizing the second Bezier curve. The tone mapped video signal is provided to the display device for presentation.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: December 8, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeong-Taeg Kim, Li Tao, Pradeep Nagesh, Chenguang Liu
  • Publication number: 20200297577
    Abstract: An apparatus and method provides improved guidance instructions to providers of cardiopulmonary resuscitation (CPR) compressions in a cardiac arrest event. The apparatus detects CPR rate and/or changes in CPR rate, and issues prompts related to checking the depth of compressions based upon the rate/rate change detection. The prompts may be aural or visual.
    Type: Application
    Filed: September 18, 2018
    Publication date: September 24, 2020
    Inventors: Dawn Billie JORGENSON, Chenguang Liu LIU
  • Patent number: 10772516
    Abstract: A heart rate monitor (40) for detecting a pulse of a person (10) employs a platform (43), a plurality of multi-axis accelerometers (41R, 41L) and a pulse detector (44). The multi-axis accelerometers (41R, 41L) are adjoined to the platform (43) to generate differential mode signals (AZR, AZL) indicative of a sensing by the accelerometers (41) of physiological motion (12) of the person (10) relative to acceleration sensing axes (42R, 42L) and to generate common mode signals (AXR, AXL, AYR, AYL) indicative of a sensing by the accelerometers (41R, 41L) of extraneous motion by the person (10) relative to the acceleration sensing axes (42R, 42L). The pulse detector (44) is operably connected to the multi-axis accelerometers (41R, 41L) to generate a pulse signal (PS)as a function of a vertical alignment of the acceleration sensing axes (42R, 42L) combining the differential mode signals (AZR, AZL) and cancelling the common mode signals (AXR, AXL, AYR, AYL).
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: September 15, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: James Knox Russell, Haris Duric, Chenguang Liu
  • Publication number: 20200257009
    Abstract: The present invention discloses a submarine seismic monitoring apparatus and system based on the submarine Internet of things.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 13, 2020
    Applicants: THE FIRST INSTITUTE OF OCEANOGRAPHY, MNR, SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Yanliang PEI, Baohua LIU, Pengyao ZHI, Guangming KAN, Chenguang LIU
  • Publication number: 20200234275
    Abstract: A solution for compatibility between TUI display and Android display is provided. Based on a native control provided by a rich operating system, a customized secure control is further added, thereby simplifying TUI development. Further, the rich operating system performs drawing processing on a native control in a user interface, synchronizes a non-secure surface obtained after processing to a frame buffer of a trusted operating system on a TEE side, and transfers identified information about a secure control in the user interface to the trusted operating system on the TEE side. The trusted operating system processes drawing processing on the secure control based on the information about the secure control and a customization method corresponding to the secure control, composites a secure surface and the non-secure surface that are obtained after processing, and then displays a composited surface by using a display.
    Type: Application
    Filed: April 8, 2020
    Publication date: July 23, 2020
    Inventors: Peng ZHANG, Chenguang LIU
  • Publication number: 20200139143
    Abstract: A defibrillator (AED) and method for using a defibrillator using two different ECG analysis algorithms which work sequentially to improve the accuracy of AED shock decisions. A first algorithm, such as (ART), is particularly suited for analysis in the presence of CPR periods. A second algorithm, such as (PAS), is particularly suited for analysis during hands-off periods. The AED switches algorithms depending on the period and on the current analysis of the cardiac rhythm. The inventions thus provide an optimized ECG analysis scheme in a manner that improves the effectiveness of the rescue, resulting in more CPR “hands-on” time, better treatment of refibrillation, and reduced transition times between CPR and electrotherapy.
    Type: Application
    Filed: January 8, 2020
    Publication date: May 7, 2020
    Inventors: CHENGUANG LIU, STACY EARL GEHMAN, JAMES KNOX RUSSELL, CHRISTOPHER WILLIAM FLEMING, DAWN BLILIE JORGENSON, DAVID ROY AXNESS, JEFFREY MARTIN BOSCHEE
  • Patent number: 10583305
    Abstract: A method and associated apparatus (12) detects the presence and quality of chest compressions during cardiopulmonary resuscitation (CPR) by analyzing existing signals in automated external defibrillator (AED) devices without using a stand-alone CPR meter. The method includes analyzing both a thoracic impedance signal and a common-mode current signal, each of which can be measured with standard AED pads (18). The method applies criteria to the measured signals, the criteria being used to select which of the measured signals to use for providing CPR chest compression detections.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: March 10, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Chenguang Liu, James Knox Russell, Dawn Blilie Jorgenson, Haris Duric, Stacy Earl Gehman, Christopher William Fleming
  • Patent number: 10561853
    Abstract: A defibrillator (AED) and method for using a defibrillator using two different ECG analysis algorithms which work sequentially to improve the accuracy of AED shock decisions. A first algorithm, such as (ART), is particularly suited for analysis in the presence of CPR periods. A second algorithm, such as (PAS), is particularly suited for analysis during hands-off periods. The AED switches algorithms depending on the period and on the current analysis of the cardiac rhythm. The inventions thus provide an optimized ECG analysis scheme in a manner that improves the effectiveness of the rescue, resulting in more CPR “hands-on” time, better treatment of refibrillation, and reduced transition times between CPR and electrotherapy.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: February 18, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Chenguang Liu, Stacy Earl Gehman, James Knox Russell, Christopher William Fleming, Dawn Blilie Jorgenson, David Roy Axness, Jeffrey Martin Boschee
  • Patent number: 10537745
    Abstract: A defibrillator and method for using a defibrillator which adopts an ECG analysis algorithm that can detect a cardiac arrhythmia in the presence of noise artifact induced by cardio pulmonary resuscitation (CPR) compressions. The apparatus and method provides both of a continuous and scheduled mode of operation for interleaving periods of CPR with electrotherapy, in a manner that improves the effectiveness of the rescue, resulting in more CPR “hands-on” time, better treatment of refibriUation, and reduced transition times between CPR and electrotherapy.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: January 21, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Chenguang Liu, Stacy Earl Gehman, James Knox Russell, Christopher William Fleming, Dawn Blilie Jorgenson, David Roy Axness, Jeffrey Martin Boschee
  • Publication number: 20200020996
    Abstract: An electrode material layer includes an electrode active material and graphene of a sheet-like structure, a surface of the graphene is modified with magnetic response nanodots, and in the graphene, more than 50% of the graphene is arranged at an angle of 45° to 90° with respect to a surface, of the current collector, on which the electrode material layer is disposed, to form a heat conduction path having a specific orientation.
    Type: Application
    Filed: September 25, 2019
    Publication date: January 16, 2020
    Inventors: Huihui Zhou, Yangxing Li, Chenguang Liu, Guocheng Xu
  • Publication number: 20200014897
    Abstract: A method comprising receiving an input video signal comprising high dynamic range (HDR) video for presentation on a display device, and receiving metadata for the input video signal. The metadata comprises a first Bezier curve for tone mapping of the HDR video that fits a first peak luminance level. The method further comprises adjusting the first Bezier curve to a second Bezier curve for tone mapping of the HDR video that fits a second peak luminance level. The display device has the second peak luminance level, and the second peak luminance level is different from the first peak luminance level. The method further comprises producing a tone mapped video signal of the input video signal utilizing the second Bezier curve. The tone mapped video signal is provided to the display device for presentation.
    Type: Application
    Filed: July 5, 2019
    Publication date: January 9, 2020
    Inventors: Yeong-Taeg Kim, Li Tao, Pradeep Nagesh, Chenguang Liu
  • Publication number: 20190389183
    Abstract: A plywood panel includes multiple softwood layers and multiple hardwood layers that alternatively-tacked and bonded each other using adhesive. The face and the back of the plywood panel are both softwood layers. The number of the multiple softwood layers is one more than the number of the multiple hardwood layers. A single a paper veneer glued to the top-most softwood layer. A single layer of paper veneer is attached to the top-most softwood layer.
    Type: Application
    Filed: June 14, 2019
    Publication date: December 26, 2019
    Applicant: Dalian Rapider Wood Products Co., Ltd.
    Inventors: Chenguang Liu, Mintian Liu
  • Patent number: 10406374
    Abstract: A defibrillator and method for using a defibrillator which adopts an ECG analysis algorithm that can detect a cardiac arrhythmia in the presence of noise artifact induced by cardio pulmonary resuscitation (CPR) compressions. The apparatus and method includes a confidence analyzer circuit which determines the confidence level of an electrotherapy shock decision based on the detection. If the confidence level is low, the apparatus adjusts its shock decision criteria.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: September 10, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Chenguang Liu, Stacy Earl Gehman, Dawn Blilie Jorgenson
  • Patent number: 10295699
    Abstract: A marine magnetism detection device and a detection method are provided. The device includes a surveying ship, an onboard laboratory magnetism measurement portion arranged on the surveying ship, an aerostat shell and an aerostat magnetism measurement portion arranged inside the aerostat shell. The aerostat shell is connected to the surveying ship via a rope, and the aerostat shell floats in air. The aerostat magnetism measurement portion includes a magnetic sensor, an electronic magnetism data acquisition unit and an aerostat transmission unit; and the onboard laboratory magnetism measurement portion includes a data recording computer and a laboratory transmission unit. The marine magnetism detection device and method of the present invention are advantageously not limited by the working sea area and can also operate with other onboard devices and dragging devices.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: May 21, 2019
    Assignees: National Deep Sea Center, The First Institute of Oceanography, SOA
    Inventors: Baohua Liu, Yanliang Pei, Kaiben Yu, Chenguang Liu, Guangming Kan, Zhiguo Yang
  • Publication number: 20190105504
    Abstract: An automated external defibrillator (AED) is described which includes two electrocardiogram (ECG) analyzers. One of the ECG analyzers is suitable for use only for ECG which is signal-noise-free, and thus may be used during “hands-off” analysis periods in which no cardiopulmonary resuscitation (CPR) compressions can be provided. The length of the “hands-off” analysis period can be shortened by use of the second ECG analyzer in concert with the first ECG analyzer. Thus, a greater proportion of CPR time through the course of a cardiac arrest rescue is achieved.
    Type: Application
    Filed: March 30, 2017
    Publication date: April 11, 2019
    Inventors: CHENGUANG LIU, ERIC GRANT HALSNE, STACY EARL GEHMAN, DAWN BLILIE JORGENSON, VIJAY ADITYA TADIPATRI
  • Publication number: 20190001144
    Abstract: A defibrillator (AED) using an ECG analysis model or algorithm which can function in two different modes. The ECG analysis model is particularly suited for analysis during periods of CPR. Both modes of operation reach a shock decision in essentially the same way, where one or more ECG data segments indicate a shockable cardiac condition. In one mode of operation, the shock decision is irreversible once made. In another mode of operation, the shock decision is reversible if one or more subsequent ECG data segments indicate a no-shock decision. Improved specificity of the model is obtained without undue degradation of sensitivity to shockable ECG.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 3, 2019
    Inventors: CHENGUANG LIU, STACY EARL GEHMAN