Patents by Inventor Lu Jinnan

Lu Jinnan 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).

  • Forward scatter in particulate matter sensor
    Patent number: 10890516
    Abstract: Embodiments relate generally to systems and methods for detecting particulate matter in the air. A particulate matter sensor may comprise an airflow channel; a light source configured to pass light through the airflow channel; an airflow generator configured to generate airflow into the airflow channel; a waveguide configured to direct light from the light source after it passes through the airflow channel and scatters off of particulate matter within the airflow channel; a photodiode configured to receive light scattered by the waveguide; and a computing device coupled to the photodiode having a processor and a memory storing instructions which, when executed by the processor, determines a mass concentration of particles in the airflow channel based on an output of the photodiode.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: January 12, 2021
    Assignee: Honeywell International Inc.
    Inventors: Ouyang Yang, Lu Tian, Chen Feng, Lu Jinnan, Rui Hou, Tao Chen
  • FORWARD SCATTER IN PARTICULATE MATTER SENSOR
    Publication number: 20190025180
    Abstract: Embodiments relate generally to systems and methods for detecting particulate matter in the air. A particulate matter sensor may comprise an airflow channel; a light source configured to pass light through the airflow channel; an airflow generator configured to generate airflow into the airflow channel; a waveguide configured to direct light from the light source after it passes through the airflow channel and scatters off of particulate matter within the airflow channel; a photodiode configured to receive light scattered by the waveguide; and a computing device coupled to the photodiode having a processor and a memory storing instructions which, when executed by the processor, determines a mass concentration of particles in the airflow channel based on an output of the photodiode.
    Type: Application
    Filed: September 26, 2018
    Publication date: January 24, 2019
    Inventors: Ouyang Yang, Lu Tian, Chen Feng, Lu Jinnan, Rui Hou, Tao Chen
  • FORWARD SCATTER IN PARTICULATE MATTER SENSOR
    Publication number: 20180217044
    Abstract: Embodiments relate generally to systems and methods for detecting particulate matter in the air. A particulate matter sensor may comprise an airflow channel; a light source configured to pass light through the airflow channel; an airflow generator configured to generate airflow into the airflow channel; a waveguide configured to direct light from the light source after it passes through the airflow channel and scatters off of particulate matter within the airflow channel; a photodiode configured to receive light scattered by the waveguide; and a computing device coupled to the photodiode having a processor and a memory storing instructions which, when executed by the processor, determines a mass concentration of particles in the airflow channel based on an output of the photodiode.
    Type: Application
    Filed: February 2, 2017
    Publication date: August 2, 2018
    Inventors: Ouyang Yang, Lu Tian, Chen Feng, Lu Jinnan, Rui Hou, Tao Chen