Patents by Inventor Geum-Bong Kang

Geum-Bong Kang 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).

  • OPTICAL PHASED ARRAY RADIATOR
    Publication number: 20240027868
    Abstract: An optical phased array (OPA) radiator includes a plurality of unit radiators configured to serve as optical waveguides, each of the unit radiators being made of a silicon material and each having a predetermined length, where the unit radiators are disposed in parallel; a cladding portion configured to cover the plurality of unit radiators; and a plurality of electrodes arranged in parallel with the plurality of unit radiators on the cladding portion, where the plurality of electrodes are arranged so as not to overlap the plurality of unit radiators in a vertical direction. A beam radiated through the unit radiators using a phased array can be efficiently vertically steered.
    Type: Application
    Filed: September 27, 2023
    Publication date: January 25, 2024
    Inventors: Chan-Hee Kang, Hyun-Woo Rhee, Hyeon-Ho Yoon, Nam-Hyun Kwon, Hyo-Hoon Park, Geum-Bong Kang
  • Silicon-opa-based lidar for measuring distance using quasi-frequency modulation
    Patent number: 11609330
    Abstract: A silicon phased array based LiDAR device that measures a distance using a quasi-frequency modulation is disclosed.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: March 21, 2023
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyo-Hoon Park, Hyeonho Yoon, Nam-Hyun Kwon, Kyeongjin Han, Hyun-Woo Rhee, Geum-Bong Kang
  • OPTICAL PHASED ARRAY RADIATOR
    Publication number: 20220244615
    Abstract: An optical phased array (OPA) radiator includes a plurality of unit radiators configured to serve as optical waveguides, each of the unit radiators being made of a silicon material and each having a predetermined length, where the unit radiators are disposed in parallel; a cladding portion configured to cover the plurality of unit radiators; and a plurality of electrodes arranged in parallel with the plurality of unit radiators on the cladding portion, where the plurality of electrodes are arranged so as not to overlap the plurality of unit radiators in a vertical direction. A beam radiated through the unit radiators using a phased array can be efficiently vertically steered.
    Type: Application
    Filed: November 17, 2021
    Publication date: August 4, 2022
    Inventors: Chan-Hee Kang, Hyun-Woo Rhee, Hyeon-Ho Yoon, Nam-Hyun Kwon, Hyo-Hoon Park, Geum-Bong Kang
  • SILICON-OPA-BASED LIDAR FOR MEASURING DISTANCE USING QUASI-FREQUENCY MODULATION
    Publication number: 20210302577
    Abstract: A silicon phased array based LiDAR device that measures a distance using a quasi-frequency modulation is disclosed.
    Type: Application
    Filed: April 3, 2020
    Publication date: September 30, 2021
    Inventors: Hyo-Hoon PARK, Hyeonho YOON, Nam-Hyun KWON, Kyeongjin HAN, Hyun-Woo RHEE, Geum-Bong KANG
  • LASER TRANSMITTING AND RECEIVING MODULE FOR LIDAR
    Publication number: 20210278537
    Abstract: A laser transmitting and receiving module for a light detection and ranging (LiDAR) may include a laser light source; a transmission optical phased array (OPA) device configured to emit laser light from the laser light source into a two-dimensional (2D) area; a reception OPA device configured to receive reflected laser light after being emitted by the transmission OPA device; a mixer configured to mix the laser light with the reflected laser light received by the reception OPA device; and a photo detector configured to detect an optical signal mixed by the mixer.
    Type: Application
    Filed: June 12, 2020
    Publication date: September 9, 2021
    Inventors: Chan-Hee Kang, Kyeong-Jin Han, Geum-Bong Kang, Hyo-Hoon Park, Seong-Hwan Kim