Title:
FLASH LIDAR SENSOR USING ZOOM HISTOGRAMMING TDC
Document Type and Number:
WIPO Patent Application WO/2023/038417
Kind Code:
A1
Abstract:
The present invention relates to a flash LiDAR sensor using a zoom histogramming time-to-digital converter (TDC). One aspect of the present invention is a LiDAR sensor comprising a plurality of pixels, wherein each of the plurality of pixels includes a TDC using a histogram method, the TDC performs a histogram operation by using M/2 up-down counters (UDCs), the TDC divides an object to be measured into M time bins, and each of the M time bins is allocated to correspond to either an up count or a down count of the M/2 UDCs.
Inventors:
CHO JUN HEE (KR)
Application Number:
PCT/KR2022/013415
Publication Date:
March 16, 2023
Filing Date:
September 07, 2022
Export Citation:
Assignee:
SOLIDVUE INC (KR)
International Classes:
G01S7/4861; G01S7/481; G01S7/4865; G01S17/89; G04F10/00
Foreign References:
| US8355117B2 | 2013-01-15 | |||
| KR20140145812A | 2014-12-24 | |||
| KR102198941B1 | 2021-01-05 |
Other References:
KIM BUMJUN: " A 30 x 32 SPAD-Based Scanless LiDAR Sensor with In-Pixel Histogram Array", DEPARTMENT OF ELECTRICAL ENGINEERING, GRADUATE SCHOOL OF UNIST, 14 June 2018 (2018-06-14), XP093045773, Retrieved from the Internet [retrieved on 20230510]
SEO HYEONGSEOK; YOON HEESUN; KIM DONGKYU; KIM JUNGWOO; KIM SEONG-JIN; CHUN JUNG-HOON; CHOI JAEHYUK: "Direct TOF Scanning LiDAR Sensor With Two-Step Multievent Histogramming TDC and Embedded Interference Filter", IEEE JOURNAL OF SOLID-STATE CIRCUITS, IEEE, USA, vol. 56, no. 4, 14 January 2021 (2021-01-14), USA, pages 1022 - 1035, XP011846332, ISSN: 0018-9200, DOI: 10.1109/JSSC.2020.3048074
SEO HYEONGSEOK; YOON HEESUN; KIM DONGKYU; KIM JUNGWOO; KIM SEONG-JIN; CHUN JUNG-HOON; CHOI JAEHYUK: "Direct TOF Scanning LiDAR Sensor With Two-Step Multievent Histogramming TDC and Embedded Interference Filter", IEEE JOURNAL OF SOLID-STATE CIRCUITS, IEEE, USA, vol. 56, no. 4, 14 January 2021 (2021-01-14), USA, pages 1022 - 1035, XP011846332, ISSN: 0018-9200, DOI: 10.1109/JSSC.2020.3048074
Attorney, Agent or Firm:
DARAE LAW & IP, LLC (KR)
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