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公开(公告)号：US20210389459A1
公开(公告)日：2021-12-16
申请号：US17458660
申请日：2021-08-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Heesun Yoon , Jungwoo Kim , Tatsuhiro Otsuka , Inoh Hwang
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.
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公开(公告)号：US12013486B2
公开(公告)日：2024-06-18
申请号：US17400906
申请日：2021-08-12
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Inoh Hwang , Dongjae Shin , Jungwoo Kim , Junghyun Park , Byunggil Jeong , Byounglyong Choi
IPC: G01S7/48 , G01S7/00 , G01S7/4865 , G01S17/06 , G01S17/10 , G01S17/89 , G02B26/10 , G02B27/00 , G02F1/01 , G02F1/29 , G11B7/2433
CPC classification number: G01S7/4808 , G01S7/003 , G01S7/4865 , G01S17/06 , G01S17/10 , G01S17/89 , G02B26/10 , G02B27/0087 , G02F1/0126 , G02F1/292 , G11B7/2433 , G02F2202/30 , G02F2203/50
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.
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公开(公告)号：US11988738B2
公开(公告)日：2024-05-21
申请号：US16851885
申请日：2020-04-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Inoh Hwang
IPC: G01S13/58 , G01S7/481 , G01S13/34 , G01S13/931 , G01S13/933 , G01S13/937 , G01S17/58
CPC classification number: G01S13/583 , G01S7/4815 , G01S7/4817 , G01S13/34 , G01S13/931 , G01S13/933 , G01S13/937 , G01S17/58
Abstract: A radar apparatus includes a transmitter configured to transmit electromagnetic waves; a receiver configured to receive electromagnetic waves that are reflected; and a processor configured to extract a relative velocity, with respect to the radar apparatus, of at least one front object based on the electromagnetic waves received by the receiver, wherein the processor is further configured to locally adjust respective resolutions of scanning front regions based on the relative velocity of the at least one front object.
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公开(公告)号：US11199405B2
公开(公告)日：2021-12-14
申请号：US16860811
申请日：2020-04-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Tatsuhiro Otsuka , Jungwoo Kim , Heesun Yoon , Inoh Hwang
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.
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公开(公告)号：US11119191B2
公开(公告)日：2021-09-14
申请号：US15861245
申请日：2018-01-03
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Inoh Hwang , Dongjae Shin , Jungwoo Kim , Junghyun Park , Byunggil Jeong , Byounglyong Choi
IPC: G01S7/48 , G02F1/29 , G02B27/00 , G01S7/00 , G02B26/10 , G01S17/06 , G01S7/4865 , G01S17/10 , G11B7/2433 , G02F1/01 , G01S17/89
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.
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Patent Agency Ranking
公开(公告)号：US11614524B2
公开(公告)日：2023-03-28
申请号：US17313578
申请日：2021-05-06
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Inoh Hwang , Dongjae Shin , Jungwoo Kim , Tatsuhiro Otsuka , Heesun Yoon
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.
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公开(公告)号：US11611397B1
公开(公告)日：2023-03-21
申请号：US17699553
申请日：2022-03-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyunil Byun , Dongjae Shin , Changgyun Shin , Inoh Hwang
IPC: H04B10/548 , H04B10/50
Abstract: Provided is an optical modulating device including a substrate including first and second trenches, a phase modulator in a region of the substrate, the phase modulator including an undoped region provided between the first and the second trenches, and first and a second doped regions which are apart from each other with the undoped region therebetween, wherein the phase modulator is configured to modulate a phase of light traveling through the undoped region based on a first electrical signal applied to the phase modulator, an amplifier including a first doped layer, a quantum well layer, a clad layer, and a second doped layer sequentially on the substrate, the amplifier overlapping at least a portion of the phase modulator and being configured to amplify the light based on a second electrical signal applied to the amplifier, and an insulating layer between the phase modulator and the amplifier.
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公开(公告)号：US20220334255A1
公开(公告)日：2022-10-20
申请号：US17478391
申请日：2021-09-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dongjae SHIN , Hyunil Byun , Changgyun Shin , Changbum Lee , Inoh Hwang
Abstract: Provided is a light detection and ranging (LiDAR) apparatus including a plurality of switches connected in a binary tree structure, a light source and a photodetector respectively connected to a root switch provided on a root node of the binary tree structure, and a light transmission/reception optical system connected to a plurality of terminal switches provided at a plurality of terminal nodes of the binary tree structure, the light transmission/reception optical system being configured to transmit light to an outside of the LiDAR apparatus or receive light from the outside, wherein the root switch is a 2×2 switch including a first upstream side port, a second upstream side port, a first downstream side port, and a second downstream side port, and wherein the light source is connected to the first upstream side port and the photodetector is connected to the second upstream side port.
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公开(公告)号：US20210373131A1
公开(公告)日：2021-12-02
申请号：US17400906
申请日：2021-08-12
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Inoh Hwang , Dongjae Shin , Jungwoo Kim , Junghyun Park , Byunggil Jeong , Byounglyong Choi
IPC: G01S7/48 , G02F1/29 , G02B27/00 , G01S7/00 , G02B26/10 , G01S17/06 , G01S7/4865 , G01S17/10 , G11B7/2433 , G02F1/01 , G01S17/89
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.
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公开(公告)号：US11112493B2
公开(公告)日：2021-09-07
申请号：US16034033
申请日：2018-07-12
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Heesun Yoon , Inoh Hwang , Tatsuhiro Otsuka
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.
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