Country
Full text data for US,EP,CN
Type
Legal Validity
Legal Status
Filing Date
Publication Date
Inventor
Assignee
Click to expand
IPC(Section)
IPC(Class)
IPC(Subclass)
IPC(Group)
IPC(Subgroup)
Agent
Agency
Claims Number
Figures Number
Citation Number of Times
Assignee Number
No. Publication Number Title Publication/Patent Number Publication/Patent Number Publication Date Publication Date
Application Number Application Number Filing Date Filing Date
Inventor Inventor Assignee Assignee IPC IPC
1 US10656253B2
High-speed light sensing apparatus
Publication/Patent Number: US10656253B2 Publication Date: 2020-05-19 Application Number: 16/430,019 Filing Date: 2019-06-03 Inventor: Na, Yun-chung   Liang, Che-fu   Assignee: Artilux, Inc.   IPC: H01L27/146 Abstract: An apparatus including a semiconductor substrate; an absorption layer coupled to the semiconductor substrate, the absorption layer including a photodiode region configured to absorb photons and to generate photo-carriers from the absorbed photons; one or more first switches controlled by a first control signal, the one or more first switches configured to collect at least a portion of the photo-carriers based on the first control signal; and one or more second switches controlled by a second control signal, the one or more second switches configured to collect at least a portion of the photo-carriers based on the second control signal, where the second control signal is different from the first control signal.
2 US2020225332A1
Self-Calibration Adaptive Lidar Aperture Building-block Light Engine
Publication/Patent Number: US2020225332A1 Publication Date: 2020-07-16 Application Number: 16/368,080 Filing Date: 2019-03-28 Inventor: Wagner, Kelvin   Feldkhun, Daniel   Popovic, Milos   Assignee: Wagner, Kelvin   Feldkhun, Daniel   Popovic, Milos   IPC: G01S7/4863 Abstract: A serpentine delay-line waveguide feeding an array of grating couplers can be fabricated in a silicon photonic chip, or tile, with the grating couplers emitting light at an angle that varies with wavelength and delay between the couplers imparted by the waveguide. The beam-steering tile can be used to transmit or receive light from a scene. The tile can be arrayed with one or more other tiles for bistatic radar-lidar operation. A tile in the array may transmit probe and frequency-shifted reference beams, while another tile may receive a return at a heterodyne frequency giving a range to the scene. The pitch of the serpentine delay line may be different for transmitting and receiving tiles to suppress returns from unwanted directions. Pairs of phase-cohered tiles may illuminate a spot in the scene with fringe patterns, producing oscillating returns that can be processed to form a high-resolution sub-image by Fourier synthesis.
3 US2020174105A1
METHOD AND APPARATUS FOR A HYBRID TIME-OF-FLIGHT SENSOR WITH HIGH DYNAMIC RANGE
Publication/Patent Number: US2020174105A1 Publication Date: 2020-06-04 Application Number: 16/656,424 Filing Date: 2019-10-17 Inventor: Yin, Chin   Wu, Meng-hsiu   Lee, Chih-lin   Chao, Calvin Yi-ping   Yeh, Shang-fu   Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.   IPC: G01S7/486 Abstract: Disclosed is a time-of-flight sensing apparatus and method. In one embodiment, a system for time-of-flight (TOF) sensing, comprising: a detector array comprising a plurality of single-photon avalanche detectors (SPADs); and a control circuit comprising at least two digital control arrays coupled to the detector array, a counter array coupled to the at least two digital control arrays, and a logical control unit coupled to the counter array and the at least two digital control arrays, wherein the detector array is configured to receive at least one reflected light pulse from a target, wherein a first digital control array, the counter array, and the logical control unit of the control circuit are configured to receive at least one avalanche pulses from each of the plurality of SPADs to determine a first distance between the detector array and the target in a first TOF mode, and wherein a second digital control array, the counter array, and the logical control unit of the control circuit are configured to receive the at least one avalanche pulse from the each of the plurality of SPADs to determine a second distance between the detector array and the target in a second TOF mode.
4 US2020025895A1
MODULAR LADAR SENSOR
Publication/Patent Number: US2020025895A1 Publication Date: 2020-01-23 Application Number: 16/380,697 Filing Date: 2019-04-10 Inventor: Gilliland, Patrick   Heughebaert, Laurent   Spagnolia, Joseph   Short, Brad   Stettner, Roger   Assignee: CONTINENTAL ADVANCED LIDAR SOLUTIONS US, LLC.   IPC: G01S7/486 Abstract: A lightweight, inexpensive LADAR sensor incorporating 3-D focal plane arrays is adapted specifically for modular manufacture and rapid field configurability and provisioning. The sensor generates, at high speed, 3-D image maps and object data at short to medium ranges. The techniques and structures described may be used to extend the range of long range systems as well, though the focus is on compact, short to medium range ladar sensors suitable for use in multi-sensor television production systems and 3-D graphics capture and moviemaking. 3-D focal plane arrays are used in a variety of physical configurations to provide useful new capabilities.
5 US2020003876A1
A SYSTOLIC PROCESSOR SYSTEM FOR A LIGHT RANGING SYSTEM
Publication/Patent Number: US2020003876A1 Publication Date: 2020-01-02 Application Number: 16/488,918 Filing Date: 2018-02-20 Inventor: Zalud, Peter Ferdinand   Assignee: SRI International   IPC: G01S7/486 Abstract: A ROIC can perform systolic processing of light detectors. The ROIC performs the systolic processing of the light detectors to capture at least i) when, in time units, an initial photon of its reflected light pulse is captured by each of the light detectors in the array, ii) where geographically in terms of column and row address of the light detector capturing its photon is located in the array, iii) scan out data captured by the light detectors on the when in time units, and the where geographically that the photon was captured in a given light detector in the array, and then iv) analyze the data on the when and the where with an algorithm to know exactly when exactly, in terms of time units, the photon was captured relative to the input from the clock circuit in order to determine an objects characteristics.
6 AU2018269000A2
Optical imaging transmitter with brightness enhancement
Publication/Patent Number: AU2018269000A2 Publication Date: 2020-01-23 Application Number: 2018269000 Filing Date: 2018-05-14 Inventor: Frichtl, Mark   Pacala, Angus   Shu, Marvin   Younge, Eric   Assignee: OUSTER, INC.   IPC: G01J1/44 Abstract: Embodiments describe optical imagers that include one or more micro-optic components. Some imagers can be passive imagers that include a light detection system for receiving ambient light from a field. Some imagers can be active imagers that include a light emission system in addition to the light detection system. The light emission system can be configured to emit light into the field such that emitted light is reflected off surfaces of an object in the field and received by the light detection system. In some embodiments, the light detection system and/or the light emission system includes micro-optic components for improving operational performance.
7 US202041624A1
LIDAR SYSTEM DESIGN TO MITIGATE LIDAR CROSS-TALK
Publication/Patent Number: US202041624A1 Publication Date: 2020-02-06 Application Number: 20/191,652 Filing Date: 2019-07-24 Inventor: Juelsgaard, Soren   Assignee: Uber Technologies, Inc.   IPC: G01S17/93 Abstract: Aspects of the present disclosure involve systems, methods, and devices for mitigating Lidar cross-talk. Consistent with some embodiments, a Lidar system is configured to include one or more noise source detectors that detect noise signals that may produce noise in return signals received at the Lidar system. A noise source detector comprises a light sensor to receive a noise signal produced by a noise source and a timing circuit to provide a timing signal indicative of a direction of the noise source relative to an autonomous vehicle on which the Lidar system is mounted. A noise source may be an external Lidar system or a surface in the surrounding environment that is reflecting light signals such as those emitted by an external Lidar system.
8 KR20200001469A
LIGHT RECEIVING DEVICE AND METHOD FOR CONTROLLING SAME AND ELECTRONIC APPARATUS
Publication/Patent Number: KR20200001469A Publication Date: 2020-01-06 Application Number: 20190061564 Filing Date: 2019-05-25 Inventor: Moriyama, Yusuke   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H04N5/369 Abstract: [과제] 소자 편차를 억제한 거리 정보를 생성할 수 있도록 한다. [해결 수단] 수광 장치는, 광전 변환부에 의해 광전 변환된 전하를 검출하는 제1 탭과, 광전 변환부에 의해 광전 변환된 전하를 검출하는 제2 탭을 갖는 화소와, 제1 탭에 의해 검출된 제1 검출 신호와 참조 신호를 비교하는 제1 비교 회로와, 제2 탭에 의해 검출된 제2 검출 신호와 참조 신호를 비교하는 제2 비교 회로와, 제1 비교 회로가 오토 제로 동작을 행할 때에, 제1 비교 회로에 공급하는 제1 제로 리셋 신호를 생성하는 제1 제로 리셋 신호 생성 회로와, 제2 비교 회로가 오토 제로 동작을 행할 때에, 제2 비교 회로에 공급하는 제2 제로 리셋 신호를 생성하는 제2 제로 리셋 신호 생성 회로를 구비한다. 본 기술은, 예를 들어, 간접 ToF 방식에 의한 측거를 행하는 수광 장치 등에 적용할 수 있다.
9 US202033457A1
SYSTEM FOR DETERMINING A DISTANCE TO AN OBJECT
Publication/Patent Number: US202033457A1 Publication Date: 2020-01-30 Application Number: 20/171,633 Filing Date: 2017-10-03 Inventor: Van, Dyck Dirk   Van, Den Bossche Johan   Assignee: XENOMATIX NV   IPC: H04N13/254 Abstract: The invention pertains to a system for determining a distance, comprising: a light source for projecting a pattern of discrete spots of laser light towards the object in a sequence of pulses; a detector comprising picture elements, for detecting light representing the pattern as reflected by the object in synchronization with the sequence of pulses; and processing means to calculate the distance to the object as a function of exposure values generated by said picture elements. The picture elements generate the exposure values by accumulating a first amount of electrical charge representative of a first amount of light reflected during a first time window and a second electrical charge representative of a second amount of light reflected during a second time window, the second time window occurring after the first time window. The picture elements comprise at least two sets of charge storage wells, each configured as a cascade.
10 US202033456A1
TIME-RESOLVING IMAGE SENSOR FOR RANGE MEASUREMENT AND 2D GREYSCALE IMAGING
Publication/Patent Number: US202033456A1 Publication Date: 2020-01-30 Application Number: 20/181,614 Filing Date: 2018-09-24 Inventor: Ovsiannikov, Ilia   Shi, Lilong   Wang, Yibing Michelle   Assignee: Samsung Electronics Co., Ltd.   IPC: G04F10/00 Abstract: An image sensor includes a time-resolving sensor and a processor. The time-resolving sensor outputs a first signal and a second signal pair in response detecting one or more photons that have been reflected from an object. A first ratio of a magnitude of the first signal to a sum of the magnitude of the first signal and a magnitude of the second signal is proportional to a time of flight of the one or more detected photons. A second ratio of the magnitude of the second signal to the sum of the magnitude of the first signal and the magnitude of the second signal is proportional to the time of flight of the one or more detected photons. The processor determines a surface reflectance of the object where the light pulse has been reflected based on the first signal and the second signal pair and may generate a grayscale image.
11 US2020249327A1
HIGH-SPEED LIGHT SENSING APPARATUS
Publication/Patent Number: US2020249327A1 Publication Date: 2020-08-06 Application Number: 16/855,163 Filing Date: 2020-04-22 Inventor: Na, Yun-chung   Liang, Che-fu   Assignee: Artilux, Inc.   IPC: G01S7/4863 Abstract: An apparatus including a semiconductor substrate; an absorption layer coupled to the semiconductor substrate, the absorption layer including a photodiode region configured to absorb photons and to generate photo-carriers from the absorbed photons; one or more first switches controlled by a first control signal, the one or more first switches configured to collect at least a portion of the photo-carriers based on the first control signal; and one or more second switches controlled by a second control signal, the one or more second switches configured to collect at least a portion of the photo-carriers based on the second control signal, where the second control signal is different from the first control signal.
12 JP6633197B2
光検出装置、及び電子機器
Publication/Patent Number: JP6633197B2 Publication Date: 2020-01-22 Application Number: 2018520972 Filing Date: 2017-05-31 Inventor: Assignee: IPC: H01L31/12 Abstract: 光検出装置(1)は、第1の光(4)の入射によりSPADアレイ(8)が出力するパルス信号のパルス数により、逆バイアス電圧を調整するSPADバイアス制御ブロック(20)を備える。
13 US202025894A1
METHOD FOR SUBTRACTING BACKGROUND LIGHT FROM AN EXPOSURE VALUE OF A PIXEL IN AN IMAGING ARRAY, AND PIXEL FOR USE IN SAME
Publication/Patent Number: US202025894A1 Publication Date: 2020-01-23 Application Number: 20/171,633 Filing Date: 2017-10-03 Inventor: Van, Dyck Dirk   Paesen, Rik   Assignee: XENOMATIX NV   IPC: G01S17/93 Abstract: The invention pertains to a method for subtracting background light from an exposure value of a first pixel in an imaging array, said first pixel receiving a reflection of a spot from a scenery illuminated by a periodically pulsed pattern of spots, said periodically pulsed pattern comprising in alternation an illuminated phase and a non-illuminated phase, the method comprising: accumulating in said first pixel a charge in proportion to a first quantity of incident light, received in said first pixel while detecting said spot during a predetermined amount of time; and decreasing said charge in proportion to a second quantity of incident light received during said predetermined amount of time in absence of said spot. The invention also pertains to a pixel and an imaging array.
14 US202049822A1
DISTANCE MEASURING DEVICE
Publication/Patent Number: US202049822A1 Publication Date: 2020-02-13 Application Number: 20/191,653 Filing Date: 2019-08-08 Inventor: Zappa, Franco   Matsui, Yuki   Villa, Federica   Lussana, Rudi   Nakamuro, Ken   Assignee: OMRON CORPORATION   Politecnico Di Milano   IPC: H01L27/146 Abstract: A distance measuring device includes a light emission portion configured to emit light; a light receiving portion configured to receive measurement light that is emitted by the light emission portion and reflected by the measurement object, the light receiving portion comprising a plurality of pixels configured to output light reception signals that depend on the received measurement light; a plurality of determination portions configured to receive the light reception signals and to determine characteristic values from the received light reception signals, and an evaluation portion that is connected to the plurality of determination portions, the evaluation portion being configured to calculate a distance from the characteristic values determined by the determination portions. Each of the plurality of determination portions is configured to receive the light reception signals only from a plurality of non-adjacent pixels.
15 WO2020033001A2
METHODS AND SYSTEMS FOR HIGH-RESOLUTION LONG-RANGE FLASH LIDAR
Publication/Patent Number: WO2020033001A2 Publication Date: 2020-02-13 Application Number: 2019017642 Filing Date: 2019-02-12 Inventor: Burroughs, Scott   Finkelstein, Hod   Fisher, Brent   Kanjorski, Russell   Assignee: SENSE PHOTONICS, INC.   IPC: Abstract: A Light Detection And Ranging (LIDAR) apparatus includes a pulsed light source to emit optical signals, a detector array comprising single-photon detectors to output respective detection signals indicating times of arrival of a plurality of photons incident thereon, and processing circuitry to receive the respective detection signals. The processing circuitry includes one or more of a recharge circuit configured to activate and deactivate subsets of the single photon detectors for respective strobe windows between pulses of the optical signals and at differing delays, a correlator circuit configured to output respective correlation signals representing detection of one or more of the photons having times of arrival within a predetermined correlation time relative to one another, and a time processing circuit comprising a counter circuit configured to increment a count value and a time integrator circuit configured to generate an integrated time value based on the respective correlation signals or detection signals.
16 US202003874A1
LIGHT RECEIVING DEVICE AND METHOD FOR CONTROLLING SAME, AND ELECTRONIC APPARATUS
Publication/Patent Number: US202003874A1 Publication Date: 2020-01-02 Application Number: 20/191,642 Filing Date: 2019-05-24 Inventor: Moriyama, Yusuke   Assignee: Sony Semiconductor Solutions Corporation   IPC: G01S17/10 Abstract: There is provided a light receiving device including: a pixel including a first tap configured to detect a charge photoelectrically converted by a photoelectric conversion unit, and a second tap configured to detect a charge photoelectrically converted by the photoelectric conversion unit; a first comparison circuit configured to compare a first detection signal detected by the first tap and a reference signal; a second comparison circuit configured to compare a second detection signal detected by the second tap and the reference signal; a first zero reset signal generation circuit configured to generate a first zero reset signal that is supplied to the first comparison circuit when the first comparison circuit performs an auto zero operation; and a second zero reset signal generation circuit configured to generate a second zero reset signal that is supplied to the second comparison circuit when the second comparison circuit performs an auto zero operation.
17 AU2018269000A1
Optical imaging transmitter with brightness enhancement
Publication/Patent Number: AU2018269000A1 Publication Date: 2020-01-16 Application Number: 2018269000 Filing Date: 2018-05-14 Inventor: Frichtl, Mark   Pacala, Angus   Shu, Marvin   Younge, Eric   Assignee: OUSTER, INC.   IPC: G01J1/44 Abstract: Embodiments describe optical imagers that include one or more micro-optic components. Some imagers can be passive imagers that include a light detection system for receiving ambient light from a field. Some imagers can be active imagers that include a light emission system in addition to the light detection system. The light emission system can be configured to emit light into the field such that emitted light is reflected off surfaces of an object in the field and received by the light detection system. In some embodiments, the light detection system and/or the light emission system includes micro-optic components for improving operational performance.
18 JP2020005096A
受光装置およびその制御方法、並びに電子機器
Publication/Patent Number: JP2020005096A Publication Date: 2020-01-09 Application Number: 2018122186 Filing Date: 2018-06-27 Inventor: Assignee: IPC: H04N5/378 Abstract: 【課題】素子バラツキを抑えた距離情報を生成することができるようにする。【解決手段】受光装置は、光電変換部にて光電変換された電荷を検出する第1のタップと、光電変換部にて光電変換された電荷を検出する第2のタップとを有する画素と、第1のタップで検出された第1の検出信号と参照信号とを比較する第1の比較回路と、第2のタップで検出された第2の検出信号と参照信号とを比較する第2の比較回路と、第1の比較回路がオートゼロ動作を行う際に、第1の比較回路に供給する第1のゼロリセット信号を生成する第1のゼロリセット信号生成回路と、第2の比較回路がオートゼロ動作を行う際に、第2の比較回路に供給する第2のゼロリセット信号を生成する第2のゼロリセット信号生成回路とを備える。本技術は、例えば、間接ToF方式による測距を行う受光装置等に適用できる。【選択図】図1
19 US202041621A1
OPTICAL MEASURING DEVICE
Publication/Patent Number: US202041621A1 Publication Date: 2020-02-06 Application Number: 20/191,659 Filing Date: 2019-10-09 Inventor: Ozaki, Noriyuki   Hata, Takehiro   Azuma, Kenta   Kimura, Teiyu   Assignee: DENSO CORPORATION   IPC: H01L31/107 Abstract: A plurality of photodetectors form a light receiving group, and a plurality of the light receiving groups form one pixel. A light receiving array is provided with one or more of such pixels. The photodetectors each output a pulse signal in response to irradiation of a photon. A measuring unit is provided for each of the plurality of light receiving groups. The measuring unit generates time information representing an elapsed time from an irradiation timing input from outside and light quantity information acquired at each of one or more timings identified from the time information, in accordance with the pulse signal output from the light receiving group. The number of the photodetectors outputting the pulse signal among the plurality of photodetectors belonging to the light receiving group is used as the light quantity information.
20 US202041618A1
Matrix Light Source and Detector Device for Solid-State Lidar
Publication/Patent Number: US202041618A1 Publication Date: 2020-02-06 Application Number: 20/181,605 Filing Date: 2018-08-02 Inventor: Pelz, Georg   Elbel, Norbert   Assignee: Infineon Technologies AG   IPC: G01S17/66 Abstract: An electronic system includes a pixelated light source having a plurality of individually controllable pixels, a controller operable to control the pixelated light source, a photosensor configured to detect light signals emitted from the pixelated light source, and an analysis unit configured to recognize objects with different properties that pass in range of the pixelated light source and the photosensor, based on the light signals detected by the photosensor. Corresponding object recognition and material analysis methods are also described.