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No. Publication Number Title Publication/Patent Number Publication/Patent Number Publication Date Publication Date
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1 US2020110325A1
METHOD OF OPTIMIZING PHASE OF OPTICAL PHASED ARRAY
Publication/Patent Number: US2020110325A1 Publication Date: 2020-04-09 Application Number: 16/291,781 Filing Date: 2019-03-04 Inventor: Lee, Jisan   Hwang inoh   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G02F1/29 Abstract: A method of phase optimization of an optical phased array (OPA) includes: performing a phase optimization in a beam forming process with respect to a single focal point, wherein the performing the phase optimization in the beam forming process may include: performing a first phase optimization in a first method to obtain a first beam phase profile; and performing a second phase optimization on the first beam phase profile in a second method that is different form the first method.
2 US2020256675A1
DISTANCE MEASURING DEVICE AND METHOD OF MEASURING DISTANCE BY USING THE SAME
Publication/Patent Number: US2020256675A1 Publication Date: 2020-08-13 Application Number: 16/860,811 Filing Date: 2020-04-28 Inventor: Otsuka, Tatsuhiro   Kim, Jungwoo   Yoon, Heesun   Hwang inoh   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G01C15/00 Abstract: Provided is a distance measuring device and a method of measuring a distance. The distance measuring device detects light reflected by an object, generates an electrical signal based on the detected light, detects whether the electrical signal is saturated or not by comparing the electrical signal with a reference value, controls a magnitude of the electrical signal based on whether the signal is saturated, and calculates a distance to the object using the electrical signal.
3 US10670397B2
Distance measuring device and method of measuring distance by using the same
Publication/Patent Number: US10670397B2 Publication Date: 2020-06-02 Application Number: 15/821,071 Filing Date: 2017-11-22 Inventor: Otsuka, Tatsuhiro   Kim, Jungwoo   Yoon, Heesun   Hwang inoh   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G01V8/00 Abstract: Provided is a distance measuring device and a method of measuring a distance. The distance measuring device detects light reflected by an object, generates an electrical signal based on the detected light, detects whether the electrical signal is saturated or not by comparing the electrical signal with a reference value, controls a magnitude of the electrical signal based on whether the signal is saturated, and calculates a distance to the object using the electrical signal.
4 US10802119B2
Lidar device and method of measuring distance using the same
Publication/Patent Number: US10802119B2 Publication Date: 2020-10-13 Application Number: 15/386,565 Filing Date: 2016-12-21 Inventor: Yoon, Heesun   Kim, Jungwoo   Otsuka, Tatsuhiro   Hwang inoh   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G01S7/48 Abstract: A lidar device includes a light source configured to emit a laser pulse to an object, a light receiver configured to receive the laser pulse reflected by the object, a first periodic wave generator configured to generate a first periodic wave when the light source emits the laser pulse and generate a second periodic wave when the light source receives the laser pulse, and a first comparator configured to compare a phase of the first periodic wave and a phase of the second periodic wave to each other. The lidar device calculates a distance between the lidar device and the object based on a phase difference determined by the first comparator.
5 US2019064356A1
LiDAR DEVICE AND METHOD OF OPERATING THE SAME
Publication/Patent Number: US2019064356A1 Publication Date: 2019-02-28 Application Number: 15/870,005 Filing Date: 2018-01-12 Inventor: Yoon, Heesun   Kim, Jungwoo   Otsuka, Tatsuhiro   Hwang inoh   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G01S17/10 Abstract: Provided are a LiDAR device and a method of operating the LiDAR device. The LiDAR device includes a light-emitting unit configured to emit modulated light onto an object, a light-receiving unit configured to receive the modulated light reflected by the object, a computation unit configured to calculate a distance to the object based on a reception signal of the modulated light provided by the light-receiving unit, a modulation unit configured to provide a modulation signal to the light-emitting unit to generate the modulated light, and a controller configured to control operations of at least one of the light-emitting unit, the light-receiving unit, the computation unit, and the modulation unit.
6 US201979166A1
LIDAR APPARATUS AND OPERATING METHOD THEREOF
Publication/Patent Number: US201979166A1 Publication Date: 2019-03-14 Application Number: 20/181,602 Filing Date: 2018-06-29 Inventor: Otsuka, Tatsuhiro   Kim, Jungwoo   Yoon, Heesun   Hwang inoh   Assignee: Samsung Electronics Co., Ltd.   IPC: G01S7/493 Abstract: Provided are a method of identifying light reflected from an object, from among light incident from a plurality of different directions, based on information about an irradiation angle of light irradiated by a light source, and a light detection and ranging (LiDAR) apparatus therefor.
7 US2019219675A1
LIDAR SYSTEM AND METHOD OF DRIVING THE SAME
Publication/Patent Number: US2019219675A1 Publication Date: 2019-07-18 Application Number: 16/034,033 Filing Date: 2018-07-12 Inventor: Yoon, Heesun   Hwang inoh   Otsuka, Tatsuhiro   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G01S7/481 Abstract: Provided is a light detection and ranging (LiDAR) system including: a light source; a beam steering device configured to steer light emitted from the light source toward an object; a light detector configured to detect light reflected from the object; and a processor. The beam steering device may include an optical phased array, including a plurality of channels, and a signal input unit which applies a plurality of driving signals to the plurality of channels. The processor is configured to perform an optimization operation including analyzing the light detected by the light detector, calculating at least one correction value, and controlling the plurality of driving signals according to the at least one correction value, in order to correct an error of the beam steering device.
8 US201911256A1
DISTANCE MEASURING DEVICE AND METHOD OF MEASURING DISTANCE BY USING THE SAME
Publication/Patent Number: US201911256A1 Publication Date: 2019-01-10 Application Number: 20/171,582 Filing Date: 2017-11-22 Inventor: Otsuka, Tatsuhiro   Kim, Jungwoo   Yoon, Heesun   Hwang inoh   Assignee: Samsung Electronics Co., Ltd.   IPC: G01C15/00 Abstract: Provided is a distance measuring device and a method of measuring a distance. The distance measuring device detects light reflected by an object, generates an electrical signal based on the detected light, detects whether the electrical signal is saturated or not by comparing the electrical signal with a reference value, controls a magnitude of the electrical signal based on whether the signal is saturated, and calculates a distance to the object using the electrical signal.
9 US201964356A1
LiDAR DEVICE AND METHOD OF OPERATING THE SAME
Publication/Patent Number: US201964356A1 Publication Date: 2019-02-28 Application Number: 20/181,587 Filing Date: 2018-01-12 Inventor: Otsuka, Tatsuhiro   Kim, Jungwoo   Yoon, Heesun   Hwang inoh   Assignee: Samsung Electronics Co., Ltd.   IPC: G01S17/10 Abstract: Provided are a LiDAR device and a method of operating the LiDAR device. The LiDAR device includes a light-emitting unit configured to emit modulated light onto an object, a light-receiving unit configured to receive the modulated light reflected by the object, a computation unit configured to calculate a distance to the object based on a reception signal of the modulated light provided by the light-receiving unit, a modulation unit configured to provide a modulation signal to the light-emitting unit to generate the modulated light, and a controller configured to control operations of at least one of the light-emitting unit, the light-receiving unit, the computation unit, and the modulation unit.
10 US2019079166A1
LIDAR APPARATUS AND OPERATING METHOD THEREOF
Publication/Patent Number: US2019079166A1 Publication Date: 2019-03-14 Application Number: 16/023,681 Filing Date: 2018-06-29 Inventor: Kim, Jungwoo   Otsuka, Tatsuhiro   Yoon, Heesun   Hwang inoh   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G01S7/487 Abstract: Provided are a method of identifying light reflected from an object, from among light incident from a plurality of different directions, based on information about an irradiation angle of light irradiated by a light source, and a light detection and ranging (LiDAR) apparatus therefor.
11 US2019011256A1
DISTANCE MEASURING DEVICE AND METHOD OF MEASURING DISTANCE BY USING THE SAME
Publication/Patent Number: US2019011256A1 Publication Date: 2019-01-10 Application Number: 15/821,071 Filing Date: 2017-11-22 Inventor: Otsuka, Tatsuhiro   Kim, Jungwoo   Yoon, Heesun   Hwang inoh   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G01C15/00 Abstract: Provided is a distance measuring device and a method of measuring a distance. The distance measuring device detects light reflected by an object, generates an electrical signal based on the detected light, detects whether the electrical signal is saturated or not by comparing the electrical signal with a reference value, controls a magnitude of the electrical signal based on whether the signal is saturated, and calculates a distance to the object using the electrical signal.
12 EP3457179A1
LIDAR APPARATUS AND OPERATING METHOD THEREOF
Publication/Patent Number: EP3457179A1 Publication Date: 2019-03-20 Application Number: 18186125.3 Filing Date: 2018-07-27 Inventor: Kim, Jungwoo   Otsuka, Tatsuhiro   Yoon, Heesun   Hwang inoh   Assignee: Samsung Electronics Co., Ltd.   IPC: G01S17/93 Abstract: Provided are a method of identifying light reflected from an object, from among light incident from a plurality of different directions, based on information about an irradiation angle of light irradiated by a light source, and a light detection and ranging (LiDAR) apparatus therefor.
13 EP3470873A1
LIGHT SOURCE-INTEGRATED LIGHT SENSING SYSTEM AND ELECTRONIC DEVICE INCLUDING THE SAME
Publication/Patent Number: EP3470873A1 Publication Date: 2019-04-17 Application Number: 18186133.7 Filing Date: 2018-07-27 Inventor: Lee, Eunkyung   Kim, Jungwoo   Choi, Byounglyong   Yoon, Heesun   Hwang inoh   Assignee: Samsung Electronics Co., Ltd.   IPC: G01S7/481 Abstract: A light sensing system includes a plurality of light-emitting devices arranged to have a first optical axis and a plurality of light-receiving devices arranged to have a second optical axis, the second optical axis being parallel with the first optical axis. The plurality of light-emitting devices and the plurality of light-receiving devices are formed to have a monolithically integrated structure, and the first optical axis and the second optical axis are substantially coaxial to each other, thus improving the efficiency of light reception.
14 US2019109256A1
LIGHT SOURCE-INTEGRATED LIGHT SENSING SYSTEM AND ELECTRONIC DEVICE INCLUDING THE SAME
Publication/Patent Number: US2019109256A1 Publication Date: 2019-04-11 Application Number: 15/954,203 Filing Date: 2018-04-16 Inventor: Lee, Eunkyung   Kim, Jungwoo   Choi, Byounglyong   Yoon, Heesun   Hwang inoh   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: H01L31/173 Abstract: A light sensing system includes a plurality of light-emitting devices arranged to have a first optical axis and a plurality of light-receiving devices arranged to have a second optical axis, the second optical axis being parallel with the first optical axis. The plurality of light-emitting devices and the plurality of light-receiving devices are formed to have a monolithically integrated structure, and the first optical axis and the second optical axis are substantially coaxial to each other, thus improving the efficiency of light reception.
15 US201979171A1
LIDAR SYSTEM AND METHOD OF OPERATING THE SAME
Publication/Patent Number: US201979171A1 Publication Date: 2019-03-14 Application Number: 20/181,588 Filing Date: 2018-02-05 Inventor: Otsuka, Tatsuhiro   Kim, Jungwoo   Shin, Dongjae   Yoon, Heesun   Hwang inoh   Assignee: Samsung Electronics Co., Ltd.   IPC: G01S17/06 Abstract: Light detection and ranging (LiDAR) systems and methods of operating the LiDAR systems are provided. The LiDAR system includes a light emitter configured to emit first lights of different wavelengths in a vertical direction and at different scanning angles with respect to a horizontal axis, a lens configured to converge second lights that are reflected from objects on which the first lights are emitted, and a light filter comprising an active-type device configured to adjust a transmission central wavelength of the active-type device to the different wavelengths of the first lights that are emitted from the light emitter. The LiDAR system further includes a controller configured to control an operation of the light emitter and the light filter, and a detector configured to detect light from the light emitter, and obtain information about the objects.
16 US2019079171A1
LIDAR SYSTEM AND METHOD OF OPERATING THE SAME
Publication/Patent Number: US2019079171A1 Publication Date: 2019-03-14 Application Number: 15/888,537 Filing Date: 2018-02-05 Inventor: Hwang inoh   Shin, Dongjae   Kim, Jungwoo   Otsuka, Tatsuhiro   Yoon, Heesun   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G01S7/487 Abstract: Light detection and ranging (LiDAR) systems and methods of operating the LiDAR systems are provided. The LiDAR system includes a light emitter configured to emit first lights of different wavelengths in a vertical direction and at different scanning angles with respect to a horizontal axis, a lens configured to converge second lights that are reflected from objects on which the first lights are emitted, and a light filter comprising an active-type device configured to adjust a transmission central wavelength of the active-type device to the different wavelengths of the first lights that are emitted from the light emitter. The LiDAR system further includes a controller configured to control an operation of the light emitter and the light filter, and a detector configured to detect light from the light emitter, and obtain information about the objects.
17 US201925408A1
LiDAR SYSTEM AND METHOD OF DRIVING THE SAME
Publication/Patent Number: US201925408A1 Publication Date: 2019-01-24 Application Number: 20/181,586 Filing Date: 2018-01-03 Inventor: Choi, Byounglyong   Kim, Jungwoo   Jeong, Byunggil   Park, Junghyun   Shin, Dongjae   Hwang inoh   Assignee: Samsung Electronics Co., Ltd.   IPC: G02F1/29 Abstract: A light detection and ranging (LiDAR) system is provided including a beam steering device configured to modulate a phase of light from a light source and to output light in a plurality of directions at the same time, a receiver including a plurality of light detection elements configured to receive light that has been irradiated onto an object in the plurality of directions from the beam steering device and reflected from the object, and a processor configured to analyze position-specific distribution and/or time-specific distribution of light received by the receiver and to individually process the light lights irradiated onto the object in the plurality of directions.
18 US2019025408A1
LiDAR SYSTEM AND METHOD OF DRIVING THE SAME
Publication/Patent Number: US2019025408A1 Publication Date: 2019-01-24 Application Number: 15/861,245 Filing Date: 2018-01-03 Inventor: Hwang inoh   Shin, Dongjae   Kim, Jungwoo   Park, Junghyun   Jeong, Byunggil   Choi, Byounglyong   Assignee: SAMSUNG ELECTRONICS CO., LTD.   IPC: G01S7/48 Abstract: A light detection and ranging (LiDAR) system is provided including a beam steering device configured to modulate a phase of light from a light source and to output light in a plurality of directions at the same time, a receiver including a plurality of light detection elements configured to receive light that has been irradiated onto an object in the plurality of directions from the beam steering device and reflected from the object, and a processor configured to analyze position-specific distribution and/or time-specific distribution of light received by the receiver and to individually process the light lights irradiated onto the object in the plurality of directions.
19 EP3435377A1
LIDAR SYSTEM AND METHOD OF DRIVING THE SAME
Publication/Patent Number: EP3435377A1 Publication Date: 2019-01-30 Application Number: 18163152.4 Filing Date: 2018-03-21 Inventor: Hwang inoh   Shin, Dongjae   Kim, Jungwoo   Park, Junghyun   Jeong, Byunggil   Choi, Byounglyong   Assignee: Samsung Electronics Co., Ltd.   IPC: G11B7/2433 Abstract: A light detection and ranging (LiDAR) system is provided including a beam steering device configured to modulate a phase of light from a light source and to output light in a plurality of directions at the same time, a receiver including a plurality of light detection elements configured to receive light that has been irradiated onto an object in the plurality of directions from the beam steering device and reflected from the object, and a processor configured to analyze position-specific distribution and/or time-specific distribution of light received by the receiver and to individually process the light lights irradiated onto the object in the plurality of directions.
20 US2018031681A1
LIDAR DEVICE AND METHOD OF MEASURING DISTANCE USING THE SAME
Publication/Patent Number: US2018031681A1 Publication Date: 2018-02-01 Application Number: 15/386,565 Filing Date: 2016-12-21 Inventor: Otsuka, Tatsuhiro   Kang, Byongmin   Hwang inoh   Otsuka, Tatsuhiro   Assignee: Samsung Electronics Co., Ltd.   IPC: G01S17/10 Abstract: A lidar device includes a light source configured to emit a laser pulse to an object, a light receiver configured to receive the laser pulse reflected by the object, a first periodic wave generator configured to generate a first periodic wave when the light source emits the laser pulse and generate a second periodic wave when the light source receives the laser pulse, and a first comparator configured to compare a phase of the first periodic wave and a phase of the second periodic wave to each other. The lidar device calculates a distance between the lidar device and the object based on a phase difference determined by the first comparator.