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公开(公告)号：US20240305058A1
公开(公告)日：2024-09-12
申请号：US18663971
申请日：2024-05-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dongjae SHIN , Hyunil BYUN , Changgyun SHIN
IPC: H01S3/10 , G01S7/481 , H01S3/063 , H01S3/08031 , H01S3/082 , H01S3/083 , H01S3/106 , H01S5/00 , H01S5/02 , H01S5/06 , H01S5/065 , H01S5/10 , H01S5/14
CPC classification number: H01S3/10023 , H01S3/0637 , H01S5/0071 , H01S5/0612 , H01S5/0654 , H01S5/1071 , H01S5/142 , G01S7/4814 , G01S7/4817 , H01S3/08031 , H01S3/082 , H01S3/0826 , H01S3/083 , H01S3/106 , H01S5/021 , H01S5/0218
Abstract: Provided is a tunable laser source including a plurality of optical waveguides, at least three optical resonators provided between the plurality of optical waveguides and optically coupled to the plurality of optical waveguides, the at least three optical resonators having different lengths, and at least one optical amplifier provided on at least one of the plurality of optical waveguides, wherein a ratio of a first length of a first optical resonator of the at least three optical resonators to a second length of a second optical resonator of the at least three optical resonators is not an integer.
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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：US20240168131A1
公开(公告)日：2024-05-23
申请号：US18376657
申请日：2023-10-04
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Woosung KIM , Hyunil BYUN , Dongjae SHIN , Changbum LEE , Changgyun SHIN , Tatsuhiro OTSUKA
IPC: G01S7/481 , G01R19/25 , G01S17/931
CPC classification number: G01S7/4811 , G01R19/25 , G01S7/4814 , G01S17/931
Abstract: An optical device and a light detection and ranging (LiDAR) device each including a heater combined temperature sensor are disclosed. The optical device including the heater combined temperature sensor may include a heater, an analog-to-digital converter (ADC) configured to measure a voltage of the heater, a memory storing a measurement value, and a micro-controller configured to estimate a temperature of the heater based on relationship between the measurement value and the temperature.
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公开(公告)号：US20230111441A1
公开(公告)日：2023-04-13
申请号：US17682888
申请日：2022-02-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Changgyun SHIN , Hyunil BYUN , Dongjae SHIN , Changbum LEE
IPC: G01S7/481
Abstract: Provided is a light detection and ranging (LiDAR) device including a housing including a window configured to transmit light, a light transmitter provided in the housing and configured to output light toward an object outside of the housing, an optical element provided adjacent to the window, first light from among the light being incident on the optical element, a light receiver provided in the housing and configured to receive, from among the light, second light reflected from the object, and a processor configured to change a steering direction of the light such that a ratio of the first light to the light is reduced.
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Patent Agency Ranking
公开(公告)号：US20220244385A1
公开(公告)日：2022-08-04
申请号：US17366886
申请日：2021-07-02
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jinmyoung KIM , Kyunghyun SON , Dongjae SHIN
Abstract: A light detection and ranging (LIDAR) device includes: a photodiode configured to generate a current in response to an optical signal being input to the photodiode; a current-voltage conversion circuit configured to convert the current into a voltage; an N-type ring voltage controlled oscillator (RVCO) configured to output a first pulse signal when the voltage is input to the N-type RVCO; a P-type RVCO configured to output a second pulse signal when the voltage is input to the P-type RVCO; and a processor configured to estimate an intensity of the optical signal by identifying, based on the first pulse signal and the second pulse signal, a digital signal value corresponding to the voltage.
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公开(公告)号：US20190004394A1
公开(公告)日：2019-01-03
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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公开(公告)号：US20240094461A1
公开(公告)日：2024-03-21
申请号：US18517599
申请日：2023-11-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dongjae SHIN , Dongsik SHIM , Eunkyung LEE , Changbum LEE , Bongyong JANG
CPC classification number: G02B6/12004 , G02B6/12007 , G02B6/125 , G02B6/136 , G02B6/29301
Abstract: A photonic integrated circuit platform includes a substrate, a first oxide layer disposed on the substrate and including an insulating transparent oxide, and a first optical element layer disposed on the first oxide layer and including a semiconductor material. The photonic integrated circuit platform further includes a second optical element layer disposed on the first optical element layer and including an insulating material different from the insulating transparent oxide of the first oxide layer, the second optical element layer further including a compound semiconductor material different from the semiconductor material of the first optical element layer, a second oxide layer disposed on the second optical element layer and including an insulating transparent oxide, and a plurality of optical elements formed by patterning the first optical element layer or the second optical element layer.
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9.发明公开公开(公告)号：US20240069405A1
公开(公告)日：2024-02-29
申请号：US18171525
申请日：2023-02-20
Applicant: Samsung Electronics Co., Ltd.
Inventor： Woosung KIM , Hyunil BYUN , Dongjae SHIN
CPC classification number: G02F1/2955 , G01S7/4817
Abstract: An optical phased array device according to at least one embodiment includes a light distribution unit configured to branch a traveling path of light, input through an input terminal, at least twice, and to direct distributed pieces of sub-light to a plurality of output terminals; at least one light modulator configured to form a plurality of channels by modulating phases of the pieces of sub-light; at least one first amplifier in an optical path between the input terminal and the at least one light modulator, the at least one first amplifier configured to amplify at least a piece of sub-light; at least one first complementary amplifier configured to replace the at least one first amplifier; and a switch configured to switch the first complementary amplifier in or out of the optical path between the input and the at least one light modulator.
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公开(公告)号：US20210173083A1
公开(公告)日：2021-06-10
申请号：US16886180
申请日：2020-05-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dongjae SHIN , Hyunil BYUN , Changgyun SHIN , Bongyong JANG
IPC: G01S17/42 , G01S7/4865 , G01S17/26 , G01S17/931
Abstract: A light detection and ranging (LiDAR) apparatus capable of extracting speed information and distance information of objects in front thereof is provided. The LiDAR apparatus includes: a continuous wave light source configured to generate continuous wave light; a beam steering device configured to emit the continuous wave light to an object for a first time and stop emitting the continuous wave light to the object for a second time; a receiver configured to receive the continuous wave light that is reflected from the object to form a reception signal; and a signal processor configured to obtain distance information and speed information about the object based on the reception signal.
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