Patents by Inventor Kangjun Liu

Kangjun 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).

  • Device with a camera and a screen enabling control of light output characteristics
    Patent number: 11172119
    Abstract: A device has a camera and a screen for displaying an image captured by the camera. A user specifies desired modification to an image displayed on the screen to produce a desired modified image. This may for example make the user look more attractive. Required light output characteristics of a lighting device are then derived so that subsequent captured images using the altered lighting are closer to the desired modified image.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: November 9, 2021
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Ya Wen Chen, Sheng Peng, Xiao Dan Tang, Shu Guang Kuai, Kangjun Liu
  • DEVICE WITH A CAMERA AND A SCREEN
    Publication number: 20170078562
    Abstract: A device has a camera and a screen for displaying an image captured by the camera. A user specifies desired modification to an image displayed on the screen to produce a desired modified image. This may for example make the user look more attractive. Required light output characteristics of a lighting device are then derived so that subsequent captured images using the altered lighting are closer to the desired modified image.
    Type: Application
    Filed: April 24, 2015
    Publication date: March 16, 2017
    Inventors: YAWEN CHEN, SHENG PENG, XIAODAN TANG, SHUGUANG KUAI, KANGJUN LIU
  • Personalized lighting for open area
    Patent number: 9426865
    Abstract: The present invention proposes a method, apparatus, controller and system for controlling illuminance. Specifically, the system comprises at least one light source, each of the at least one light source comprising a plurality of light modules and each of the plurality of light modules being adjustable independently; and a controller configured to control the illuminance of a target area in the lighting system. One or more light modules associated with the illuminance of the target area are selected from the at least one light source based on the position relationship between the at least one light source and the target area and a lighting distribution of each of the at least one light source. Then, at least one of the selected one or more light modules is adjusted to meet a certain requirement for the illuminance of the area. As a result, personalized lighting for an open area is effectively achieved.
    Type: Grant
    Filed: December 22, 2012
    Date of Patent: August 23, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Kangjun Liu, Di Lou
  • PERSONALIZED LIGHTING FOR OPEN AREA
    Publication number: 20140375230
    Abstract: The present invention proposes a method, apparatus, controller and system for controlling illuminance. Specifically, the system comprises at least one light source, each of the at least one light source comprising a plurality of light modules and each of the plurality of light modules being adjustable independently; and a controller configured to control the illuminance of a target area in the lighting system. One or more light modules associated with the illuminance of the target area are selected from the at least one light source based on the position relationship between the at least one light source and the target area and a lighting distribution of each of the at least one light source. Then, at least one of the selected one or more light modules is adjusted to meet a certain requirement for the illuminance of the area. As a result, personalized lighting for an open area is effectively achieved.
    Type: Application
    Filed: December 22, 2012
    Publication date: December 25, 2014
    Inventors: Kangjun Liu, Di Lou