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1. EP3622314 - SYSTEMS AND METHODS FOR AN APD ARRAY SOLID-STATE LASER RADAR

Office European Patent Office
Application Number 17922980
Application Date 31.08.2017
Publication Number 3622314
Publication Date 18.03.2020
Publication Kind A1
IPC
G01S 7/481
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
48of systems according to group G01S17/58
481Constructional features, e.g. arrangements of optical elements
G01S 17/08
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
08for measuring distance only
CPC
G01S 7/4814
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
481Constructional features, e.g. arrangements of optical elements
4814of transmitters alone
G01S 7/4816
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
481Constructional features, e.g. arrangements of optical elements
4816of receivers alone
G01S 7/4863
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
483Details of pulse systems
486Receivers
4861Circuits for detection, sampling, integration or read-out
4863Detector arrays, e.g. charge-transfer gates
G01S 17/894
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88Lidar systems specially adapted for specific applications
89for mapping or imaging
8943D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
H04N 5/36965
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
335using solid-state image sensors [SSIS]
369SSIS architecture; Circuitry associated therewith
3696SSIS architecture characterized by non-identical, non-equidistant or non-planar pixel layout, sensor embedding other types of pixels not meant for producing an image signal, e.g. fovea sensors or display pixels
36965the other type of pixels are pixels for depth measurement, e.g. RGBZ where Z is the depth pixel or embedded time-of-flight pixels
H04N 5/378
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
335using solid-state image sensors [SSIS]
369SSIS architecture; Circuitry associated therewith
378Readout circuits, e.g. correlated double sampling [CDS] circuits, output amplifiers or A/D converters
Applicants SZ DJI TECHNOLOGY CO LTD
Inventors ZHENG GUOGUANG
HONG XIAOPING
WANG MINGYU
Designated States
Title
(DE) SYSTEME UND VERFAHREN FÜR EINEN APD-ARRAY-FESTKÖRPERLASERRADAR
(EN) SYSTEMS AND METHODS FOR AN APD ARRAY SOLID-STATE LASER RADAR
(FR) SYSTÈMES ET PROCÉDÉS POUR UN RADAR LASER SOLIDE À SEMI-CONDUCTEUR À RÉSEAU APD
Abstract
(EN)
Methods and systems (30) for detecting and ranging an object (36) may include or be configured to carry out the steps of emitting, by a laser light source, a first beam of light incident on a surface of the object (36), receiving, at an avalanche photodiode (APD) array (38a), a second beam of light reflected from the surface of the object (36); reading, by a readout integrated circuit (ROIC) array (38d), from the APD array (38a); and processing, by the ROIC array (38d), accumulated photocurrent from the APD array (38a) for outputting a signal representative of the object (36) detected by the APD array (38a).

(FR)
Des procédés et des systèmes (30) de détection et de télémétrie d'un objet (36) peuvent comprendre ou être configurés pour exécuter les étapes consistant à émettre, par une source de lumière laser, un premier faisceau de lumière incidente sur une surface de l'objet (36), recevoir, au niveau d'un réseau de photodiodes à avalanche (APD) (38a), un second faisceau de lumière réfléchi à partir de la surface de l'objet (36) ; lire, par un réseau de circuits intégrés de lecture (ROIC), à partir du réseau APD (38a) ; et le traitement, par le réseau ROIC (38d), d'un courant photoélectrique accumulé à partir du réseau APD (38a) pour délivrer un signal représentatif de l'objet (36) détecté par le réseau APD (38a).

Also published as
JP2020504345