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公开(公告)号：US20210215993A1
公开(公告)日：2021-07-15
申请号：US17218910
申请日：2021-03-31
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyunil BYUN , Inoh HWANG
Abstract: Provided is an optical phased array including a light injector, a first splitter connected to the light injector, a first phase shifter connected to the first splitter, a plurality of waveguides connected to the first splitter, portions of the plurality of waveguides being connected to the first splitter via the first phase shifter, an antenna array connected to the plurality of waveguides, a single mode filter provided in each of the plurality of waveguides, and a first photodetector connected to the first splitter and configured to detect a portion of light radiated onto the antenna array.
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公开(公告)号：US20190064356A1
公开(公告)日：2019-02-28
申请号：US15870005
申请日：2018-01-12
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：US20190079171A1
公开(公告)日：2019-03-14
申请号：US15888537
申请日：2018-02-05
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：US20190025408A1
公开(公告)日：2019-01-24
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
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：US20210270943A1
公开(公告)日：2021-09-02
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：US20190011256A1
公开(公告)日：2019-01-10
申请号：US15821071
申请日：2017-11-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Tatsuhiro OTSUKA , Jungwoo KIM , Heesun YOON , Inoh HWANG
IPC: G01C15/00
CPC classification number: G01C15/002 , G01C3/08
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：US20220113414A1
公开(公告)日：2022-04-14
申请号：US17204369
申请日：2021-03-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jisan LEE , Inoh HWANG
IPC: G01S17/32 , G01S17/894 , G01S7/481
Abstract: A distance measuring device and a method of operating the same are provided. The distance measuring device may include a transmitter configured to emit a sensing signal toward a target object based on a transmission signal; a receiver configured to detect the sensing signal and output a reception signal corresponding to the sensing signal; and a processor configured to correct the reception signal using a baseline having a peak value that varies according to a time index, and determine a distance to the target object based on a cross-correlation signal indicating a cross-correlation between the corrected reception signal and the transmission signal.
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公开(公告)号：US20210167241A1
公开(公告)日：2021-06-03
申请号：US17150634
申请日：2021-01-15
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Eunkyung LEE , Jungwoo KIM , Byounglyong CHOI , Heesun YOON , Inoh HWANG
IPC: H01L31/173 , H01L31/0232 , 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.
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公开(公告)号：US20190109256A1
公开(公告)日：2019-04-11
申请号：US15954203
申请日：2018-04-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Eunkyung LEE , Jungwoo KIM , Byounglyong CHOI , Heesun YOON , Inoh HWANG
IPC: H01L31/173 , H01L31/0232 , 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.
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公开(公告)号：US20180031681A1
公开(公告)日：2018-02-01
申请号：US15386565
申请日：2016-12-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Heesun YOON , Jungwoo KIM , Tatsuhiro OTSUKA , Inoh HWANG
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.
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