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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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Patent Agency Ranking
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：US20230063732A1
公开(公告)日：2023-03-02
申请号：US17721624
申请日：2022-04-15
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dongjae Shin , Hyunil Byun , Kyunghyun Son , Changgyun Shin , Tatsuhiro Otsuka , Jisan Lee
IPC: G01S7/4865 , G01S17/26 , G01S7/486
Abstract: An object detection device and an operating method thereof are provided. The object detection device detects light and outputs a received signal, which is an electrical signal, time-delays a part of the received signal with respect to a rest of the received signal, converts the rest of the received signal into a digital signal, converts the time-delayed part of the received signal into one or more time-delayed digital signals, and determines a distance to an object based on the digital signal and the one or more time-delayed digital signals.
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公开(公告)号：US20220003870A1
公开(公告)日：2022-01-06
申请号：US17135228
申请日：2020-12-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyunil BYUN , Dongjae Shin , Changgyun Shin
IPC: G01S17/58 , G01K13/00 , G01S7/481 , G01S7/4913 , G01S17/931 , G02F1/313
Abstract: Provided is a light detection and ranging (LiDAR) apparatus including a light source configured to generate light, an optical transmitter configured to emit the light generated by the light source to outside of the LiDAR apparatus, an optical receiver configured to receive light from the outside of the LiDAR apparatus, a resonance-type photodetector configured to selectively amplify and detect light having a same wavelength as a wavelength of light generated by the light source among the light received by the optical receiver, and a processor configured to control the light source and the resonance-type photodetector, wherein the resonance-type photodetector includes a resonator, a phase modulator provided on the resonator and configured to control a phase of light traveling along the resonator based on control of the processor, and an optical detector configured to detect an intensity of the light traveling along the resonator.
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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：US10983413B2
公开(公告)日：2021-04-20
申请号：US15851061
申请日：2017-12-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Changgyun Shin , Junghyun Park , Dongjae Shin , Eunkyung Lee
Abstract: A beam steering device includes an optical waveguide configured to split input light into a plurality of split light along a plurality of paths and output the plurality of split light to a plurality of output terminals which are aperiodically arranged, a plurality of phase shifters provided in the plurality of paths, wherein at least two phase shifters among the plurality of phase shifters have different phase delay length, and a signal input unit configured to supply a uniform signal to each of the plurality of phase shifters.
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