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 EP3210037B1
TIME OF FLIGHT DEPTH CAMERA
Publication/Patent Number: EP3210037B1 Publication Date: 2020-03-25 Application Number: 15790369.1 Filing Date: 2015-10-20 Inventor: Hall, Michael Anthony   Schmidt, Mirko   Perry, Travis   Assignee: Microsoft Technology Licensing, LLC   IPC: G01S17/10
2 US2020033475A1
DISTANCE MEASURING APPARATUS WHICH DETECTS OPTICAL SYSTEM ABNORMALITY
Publication/Patent Number: US2020033475A1 Publication Date: 2020-01-30 Application Number: 16/420,161 Filing Date: 2019-05-23 Inventor: Nakamura, Minoru   Takahashi, Yuuki   Watanabe, Atsushi   Assignee: FANUC CORPORATION   IPC: G01S17/36 Abstract: A distance measuring apparatus includes an optical system abnormality detection section for detecting abnormalities of an optical system of the distance measuring apparatus by comparing a relationship between a measured distance value d and a light intensity Ls with a reference value Kρ, Kρ1, KLs0d0, or KAb0. A distance measuring apparatus includes an optical system abnormality detection section for detecting abnormalities of an optical system of the distance measuring apparatus by comparing a relationship between a measured distance value d and a light intensity Ls with a reference ...More ...Less
3 CN110892282A
激光雷达系统
Title (English): lidar system
Publication/Patent Number: CN110892282A Publication Date: 2020-03-17 Application Number: 201880023480.X Filing Date: 2018-03-28 Inventor: 刘昕   H·贝伦斯   G·弗朗茨   Assignee: 罗伯特·博世有限公司   IPC: G01S7/493 Abstract: 本发明涉及一种激光雷达系统(1),所述激光雷达系统包括:第一光源(2),所述第一光源用于发送第一光(4),所述第一光以第一频率进行幅度调制;第二光源(3),所述第二光源用于发送第二光(5),所述第二光以与所述第一频率不同的第二频率进行幅度调制;接收设备(6),所述接收设备用于识别以下反射(7):在所述反射处所述第一光(4)和所述第二光(5)叠加。
4 CN110673113A
一种高精度低回踢噪声的时钟再生延迟链
Title (English): A Clock Regenerative Delay Chain with High Precision Low Kick Noise
Publication/Patent Number: CN110673113A Publication Date: 2020-01-10 Application Number: 201910759880.3 Filing Date: 2019-08-16 Inventor: 朱樟明   张玮   马瑞   刘马良   王夏宇   胡进   Assignee: 西安电子科技大学   IPC: G01S7/486 Abstract: 本发明公开了一种高精度低回踢噪声的时钟再生延迟链,包括:电压转换模块,连接电压输入端,用于将输入信号转换为第一电压信号和第二电压信号;延迟链模块,连接所述电压转换模块和时钟输入端,用于根据所述第一电压信号和所述第二电压信号控制时钟延迟时间得到第一时钟信号簇和第二时钟信号簇;时钟驱动模块,连接所述延迟链模块,用于接收并处理所述第一时钟信号簇和所述第二时钟信号簇,输出多相位时钟信号簇。本发明提供的时钟再生延迟链具有可干扰能力和时钟再生能力,可以适应高精度系统级的应用。
5 US10663587B1
LIDAR system based on light modulator and coherent receiver for simultaneous range and velocity measurement
Publication/Patent Number: US10663587B1 Publication Date: 2020-05-26 Application Number: 16/616,068 Filing Date: 2019-05-10 Inventor: Sandborn, Phillip   Lin, Sen   Assignee: OURS Technology, Inc.   IPC: G01S17/34 Abstract: A LIDAR system and method for determining a distance and a velocity of a target. The LIDAR system can include a laser modulated by a laser modulator, an optical combiner, an optical splitter, a photoreceiver, and a control circuit. The optical splitter can optically split the modulated laser beam into a first laser beam and a second laser beam and direct the first laser beam at the target such that the first laser beam is reflected by the target to the optical combiner. The optical combiner can optically combine the first laser beam and the second laser beam. The output an I-output and a Q-output according to the optically combined first laser beam and second laser beam. The control circuit can determine a nominal beat frequency, which corresponds to the distance of the target, and a frequency shift, which corresponds to the velocity of the target, accordingly. A LIDAR system and method for determining a distance and a velocity of a target. The LIDAR system can include a laser modulated by a laser modulator, an optical combiner, an optical splitter, a photoreceiver, and a control circuit. The optical splitter can optically split the ...More ...Less
6 US2020192387A1
FILTER FOR NOISE REDUCTION IN DETECTION IN REMOTE SENSING SYSTEMS
Publication/Patent Number: US2020192387A1 Publication Date: 2020-06-18 Application Number: 16/224,472 Filing Date: 2018-12-18 Inventor: Liu, Cheh-ming Jeff   Standridge, Alexander Charles   Assignee: GM Cruise Holdings LLC   IPC: G05D1/02 Abstract: Vehicles, systems, and techniques are provided for noise reduction in detection in remote sensing systems. Noise reduction can be accomplished, in some embodiments, by narrowing a time interval to receive return EM radiation (or, in other embodiments, EM signals representative of the return EM radiation) at a system mounted in a vehicle. The time interval can be narrowed by adjusting the time during which the system can receive the return EM radiation. In other embodiments, rather than adjusting the time interval, a processing unit can remove a portion of data representative of a signal resulting from mixing probe EM radiation and return EM radiation. The data that is removed can be representative of the signal during a leading interval of the defined period during which probe EM radiation is emitted. Such a removal can result in second data representative of the signal during a terminal interval of the defined period. Vehicles, systems, and techniques are provided for noise reduction in detection in remote sensing systems. Noise reduction can be accomplished, in some embodiments, by narrowing a time interval to receive return EM radiation (or, in other embodiments, EM signals representative ...More ...Less
7 US10578723B2
Position detector
Publication/Patent Number: US10578723B2 Publication Date: 2020-03-03 Application Number: 15/621,228 Filing Date: 2017-06-13 Inventor: Iwazawa, Katsutoshi   Assignee: OKUMA CORPORATION   IPC: G01S7/491 Abstract: In a position detector for converting, into position information, two signals shifted in phase by 90 degrees from each other, a phase correction value calculator for calculating a phase correction value for correcting a phase difference between the two signals calculates a phase change value representing a change in the phase correction value, to find a next phase correction value based on the phase change value and a present phase correction value. A virtual change value calculator calculates, based on second-order components obtained by Fourier analysis of a radius value, a virtual phase change value representing another change in the phase correction value obtained when changes in offset and amplitude ratio are ignored, and a virtual amplitude change value representing a change rate in an amplitude ratio correction value obtained when a change in the phase difference is ignored. In a position detector for converting, into position information, two signals shifted in phase by 90 degrees from each other, a phase correction value calculator for calculating a phase correction value for correcting a phase difference between the two signals calculates a phase ...More ...Less
8 US10613200B2
Scanning lidar system and method
Publication/Patent Number: US10613200B2 Publication Date: 2020-04-07 Application Number: 15/895,460 Filing Date: 2018-02-13 Inventor: Hallstig, Emil   Wihlbeck, Jonas   Hansson, Peter   De, Mersseman Bernard   Puglia, Kenneth   Assignee: Veoneer, Inc.   IPC: G01S7/481 Abstract: A LiDAR detection system includes optical sources generating a plurality of output optical signals disposed along a first direction. A modulation circuit applies an output signal from a signal generator to the optical sources to modulate the output optical signals such that the output optical signals are envelope-modulated output optical signals having frequency-modulated modulation envelopes. A scanning device scans the output optical signals into a region over a second direction. A receiver comprising a two-dimensional array of optical detectors receives return optical signals and generates receive signals indicative of the return optical signals. The return optical signals impinge on a mask between the region and the array, the mask comprising a plurality of apertures aligned with a first dimension of the array. The receive signals are generated for a set of detectors in the array disposed along the first dimension of the array and aligned with the mask apertures. A LiDAR detection system includes optical sources generating a plurality of output optical signals disposed along a first direction. A modulation circuit applies an output signal from a signal generator to the optical sources to modulate the output optical signals such that the ...More ...Less
9 US10613204B2
Methods and apparatus for lidar operation with sequencing of pulses
Publication/Patent Number: US10613204B2 Publication Date: 2020-04-07 Application Number: 15/485,147 Filing Date: 2017-04-11 Inventor: Warke, Nirmal C.   Magee, David P.   Haroun, Baher S.   Assignee: TEXAS INSTRUMENTS INCORPORATED   IPC: G01S7/491 Abstract: Described example aspects include an integrated circuit includes a timing controller configured to select a selected time slot in a measurement period having a plurality of time slots and a transmit driver configured to provide a transmit signal in accordance with the selected time slot, in which the transmit signal is transmitted to an optical transmitter. The integrated circuit also includes a range estimator configured to receive a received signal after the selected time slot from an optical receiver that is configured to receive a reflection of light transmitted by the optical transmitter off an object, the range estimator configured to determine an estimated distance of the object based on the received signal. Described example aspects include an integrated circuit includes a timing controller configured to select a selected time slot in a measurement period having a plurality of time slots and a transmit driver configured to provide a transmit signal in accordance with the selected ...More ...Less
10 US10641884B2
Radar transceiver
Publication/Patent Number: US10641884B2 Publication Date: 2020-05-05 Application Number: 15/879,775 Filing Date: 2018-01-25 Inventor: Takada, Yuji   Assignee: MITSUMI ELECTRIC CO., LTD.   IPC: G01S13/58 Abstract: A radar transceiver (100) includes: a transmission-signal forming section (110) that forms an upbeat signal and a downbeat signal from a carrier signal and a chirp signal, using an image rejection circuit; and a received-signal processing section (120) that separates a reflection signal received via a reception antenna (105) into a reflection signal based on the upbeat signal and a reflection signal based on the downbeat signal, using an image rejection circuit. A radar transceiver (100) includes: a transmission-signal forming section (110) that forms an upbeat signal and a downbeat signal from a carrier signal and a chirp signal, using an image rejection circuit; and a received-signal processing section (120) that separates a ...More ...Less
11 EP3588057A1
METHOD OF REDUCING FALSE-POSITIVE PARTICLE COUNTS OF AN INTERFERENCE PARTICLE SENSOR MODULE
Publication/Patent Number: EP3588057A1 Publication Date: 2020-01-01 Application Number: 18180810.6 Filing Date: 2018-06-29 Inventor: Spruit, Johannes Hendrikus Maria   Van, Der Lee Alexander Marc   Gerlach, Philipp Henning   Wolf, Robert   Weiss, Robert   Falk, Matthias   Assignee: Koninklijke Philips N.V.   Bosch Sensortec GmbH   IPC: G01N15/14 Abstract: The invention relates to a method of reducing false-positive particle counts detected by an interference particle sensor module, preferably a self-mixing interference particle sensor module, wherein the interference particle sensor module comprises a laser (100) and a light detector (200), the method comprises the steps of: emitting laser light (315) by means of the laser (100), providing a high-frequency signal to the interference particle sensor module during the emission of the laser light (315), detecting an optical response by means of the light detector (200) when providing the high-frequency signal in reaction to the emitted laser light (315), wherein the high-frequency signal is arranged such that a detection signal caused by a macroscopic object (25) positioned in a range between a threshold distance and a detection range of the particle sensor module is reduced in comparison to a detection signal caused by the macroscopic object (25) at the same position without providing the high-frequency signal. The invention further relates to a corresponding laser sensor (300), a particle detector comprising such a laser sensor (300), a mobile communication device comprising such a laser sensor (300) or particle detector and a computer program product. The invention relates to a method of reducing false-positive particle counts detected by an interference particle sensor module, preferably a self-mixing interference particle sensor module, wherein the interference particle sensor module comprises a laser (100) and a light ...More ...Less
12 EP3607348A1
LIDAR DEVICE AND METHOD FOR SCANNING A SCANNING ANGLE AND FOR EVALUATING A DETECTOR
Publication/Patent Number: EP3607348A1 Publication Date: 2020-02-12 Application Number: 18713935.7 Filing Date: 2018-03-28 Inventor: Fink, Franziska Felicitas   Schnitzer, Reiner   Hipp, Tobias   Assignee: Robert Bosch GmbH   IPC: G01S17/08
13 EP3635364A1
METHOD OF SUPPRESSING FALSE POSITIVE SIGNALS DURING SELF MIXING INTERFERENCE PARTICLE DETECTION
Publication/Patent Number: EP3635364A1 Publication Date: 2020-04-15 Application Number: 18721054.7 Filing Date: 2018-05-07 Inventor: Ouweltjes, Okke   Spruit, Johannes Hendrikus Maria   Van, Der Lee Alexander Marc   Jutte, Petrus Theodorus   Assignee: TRUMPF Photonic Components GmbH   IPC: G01N15/06
14 US2020041628A1
TIME OF FLIGHT SENSORS AND SENSING METHODS
Publication/Patent Number: US2020041628A1 Publication Date: 2020-02-06 Application Number: 16/508,276 Filing Date: 2019-07-10 Inventor: Emadi, Arvin   Razzell, Charles J.   Hanks, John P.   Assignee: Maxim Integrated Products, Inc.   IPC: G01S7/491 Abstract: A time of flight sensor includes a time of flight (TOF) processor having a digital TOF port, a digital input port, and a digital output port, the TOF processor comprising a phase detector including cyclically rotating demultiplexer (DEMUX), a first summer coupled to a first DEMUX output, a second summer coupled to a second DEMUX output, a third summer coupled to a third DEMUX output, a fourth summer coupled to a fourth DEMUX output, and a phase estimator coupled to outputs of the first summer, the second summer, the third summer and the fourth summer and having a phase estimate output; a driver having a digital driver port coupled to the digital TOF port and a driver output port; and an analog-to-digital converter (ADC) having an output port coupled to the digital input port of the digital TOF processor. A time of flight sensor includes a time of flight (TOF) processor having a digital TOF port, a digital input port, and a digital output port, the TOF processor comprising a phase detector including cyclically rotating demultiplexer (DEMUX), a first summer coupled to a first ...More ...Less