US 11,927,670 B2
LiDAR apparatus using interrupted continuous wave light
Dongjae Shin, Seoul (KR); Hyunil Byun, Seongnam-si (KR); Changgyun Shin, Anyang-si (KR); and Bongyong Jang, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Oct. 28, 2022, as Appl. No. 17/976,190.
Application 17/976,190 is a continuation of application No. 16/886,180, filed on May 28, 2020, granted, now 11,513,226.
Claims priority of application No. 10-2019-0164143 (KR), filed on Dec. 10, 2019.
Prior Publication US 2023/0258802 A1, Aug. 17, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 17/42 (2006.01); G01S 7/4865 (2020.01); G01S 17/26 (2020.01); G01S 17/931 (2020.01); G01S 17/00 (2020.01)
CPC G01S 17/42 (2013.01) [G01S 7/4865 (2013.01); G01S 17/26 (2020.01); G01S 17/931 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A light detection and ranging (LiDAR) apparatus comprising:
a continuous wave light source configured to generate continuous wave light;
a frequency modulator configured to drive the continuous wave light source such that the continuous wave light source generates frequency-modulated continuous wave (FMCW) light;
a beam steering device configured to emit the FMCW light to an object for a first period of time and stop emitting the FMCW light to the object for a second period of time;
a receiver configured to receive the FMCW light that is reflected from the object to form a reception signal; and
a signal processor configured to obtain distance information and speed information about the object based on the reception signal,
wherein the frequency modulator is configured to linearly increase or decrease a frequency of the FMCW light for a third period of time including the first period of time and the second period of time, and
wherein the third period of time is equal to or greater than a sum of the first period of time and the second period of time.