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1.发明公开公开(公告)号：US20230305118A1
公开(公告)日：2023-09-28
申请号：US18169723
申请日：2023-02-15
Applicant: Ouster, Inc.
Inventor： Angus PACALA , Marvin Liu SHU
CPC classification number: G01S7/484 , G01S7/4817 , G01S17/10
Abstract: An electronically scanning emitter array that includes a two-dimensional array of light emitters arranged in k emitter banks. Each of the k emitter banks can include a subset of the light emitters in the two-dimensional array and can be independently operable to emit light from its subset of emitters. The electronically scanning emitter array can further include first and second capacitor banks coupled to provide energy to the two-dimensional array of light emitters and emitter array driving circuitry coupled to the first and second capacitor banks and to the k emitter banks. Each of the first and second capacitor banks can include at least one capacitor. The emitter array driving circuitry can include a first high-side switch coupled between the first capacitor bank and a voltage source, a second high-side switch coupled between the second capacitor bank and the voltage source, and k/2 low-side switches coupled between the k emitter banks and ground; and the emitter driving circuitry can be configured to fire one emitter bank in the k emitter banks at a time according to a firing sequence until each of the k emitter banks are fired.
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公开(公告)号：US20230273320A1
公开(公告)日：2023-08-31
申请号：US18139847
申请日：2023-04-26
Applicant: Ouster, Inc.
Inventor： Angus PACALA , Marvin SHU
IPC: G01S17/894 , G01S7/4865 , G01S7/487
CPC classification number: G01S17/894 , G01S7/4865 , G01S7/487 , G01S17/931
Abstract: An optical measurement system may improve the accuracy with which it estimates distances to surrounding objects by upgrading various aspects of its data path. Spatial resolution may be increased by subdividing histogram buckets or integration registers based on spatial location. Saturation at any point in the data path can be detected and used to stop counting photons in individual pixels, which can then be normalized after a measurement is over. Multiple peaks can be detected using recursive or iterative techniques to identify a largest remaining peak at each stage. Instead of iterating through the histogram memory multiple times, a threshold can be pre-calculated based on an estimated ambient noise level, and peaks can be detected in a single pass.
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公开(公告)号：US20220035011A1
公开(公告)日：2022-02-03
申请号：US17451784
申请日：2021-10-21
Applicant: Ouster, Inc.
Inventor： Angus PACALA
IPC: G01S7/4865 , G01S7/484 , G01S7/481 , G01S17/931
Abstract: A LIDAR system having light emitters and light detectors can apply per-shot jitter to create variation in the interval between successive emitter pulses. Operation of the detectors can be synchronized with operation of the emitters so that a consistent time of flight measurement corresponds to a consistent distance. Application of per-shot jitter can reduce the effect of crosstalk from other sources of pulsed light and can also reduce range aliasing effects.
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公开(公告)号：US20200116558A1
公开(公告)日：2020-04-16
申请号：US16534838
申请日：2019-08-07
Applicant: Ouster, Inc.
Inventor： Angus PACALA , Mark FRICHTL
Abstract: A multispectral sensor array can include a combination of ranging sensor channels (e.g., LIDAR sensor channels) and ambient-light sensor channels tuned to detect ambient light having a channel-specific property (e.g., color). The sensor channels can be arranged and spaced to provide multispectral images of a field of view in which the multispectral images from different sensors are inherently aligned with each other to define an array of multispectral image pixels. Various optical elements can be provided to facilitate imaging operations. Light ranging/imaging systems incorporating multispectral sensor arrays can operate in rotating and/or static modes.
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公开(公告)号：US20180259645A1
公开(公告)日：2018-09-13
申请号：US15909628
申请日：2018-03-01
Applicant: Ouster, Inc.
Inventor： Marvin Shu , Angus PACALA , Mark FRICHTL
IPC: G01S17/10 , H01L27/146 , H01L31/107
Abstract: A light ranging system can include a laser device and an imaging device having photosensors. The laser device illuminates a scene with laser pulse radiation that reflects off of objects in the scene. The reflections can vary greatly depending on the reflecting surface shape and reflectivity. The signal measured by photosensors can be filtered with a number of matched filter designed according to profiles of different reflected signals. A best matched filter can be identified, and hence information about the reflecting surface and accurate ranging information can be obtained. The laser pulse radiation can be emitted in coded pulses by allowing weights to different detection intervals. Other enhancements include staggering laser pulses and changing an operational status of photodetectors of a pixel sensor, as well as efficient signal processing using a sensor chip that includes processing circuits and photosensors.
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Patent Agency Ranking
公开(公告)号：US20180217236A1
公开(公告)日：2018-08-02
申请号：US15934613
申请日：2018-03-23
Applicant: Ouster, Inc.
Inventor： Angus PACALA , Mark FRICHTL , Marvin SHU , Eric YOUNGE
CPC classification number: G01S7/4816 , G01S7/4817 , G01S17/08 , G01S17/89
Abstract: Optical systems and methods for collecting distance information are disclosed. An example optical system includes a first transmitting optic, a plurality of illumination sources, a pixel array comprising at least a first column of pixels and a second column of pixels, each pixel in the first column of pixels being offset from an adjacent pixel in the first column of pixels by a first pixel pitch, the second column of pixels being horizontally offset from the first column of pixels by the first pixel pitch, the second column of pixels being vertically offset from the first column of pixels by a first vertical pitch; and a set of input channels interposed between the first transmitting optic and the pixel array.
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公开(公告)号：US20180209841A1
公开(公告)日：2018-07-26
申请号：US15934338
申请日：2018-03-23
Applicant: Ouster, Inc.
Inventor： Angus PACALA , Mark FRICHTL
Abstract: A calibration system is provided including an aperture layer, a lens layer, an optical filter, a pixel layer and a regulator. The aperture layer defines a calibration aperture. The lens layer includes a calibration lens substantially axially aligned with the calibration aperture. The optical filter is adjacent the lens layer opposite the aperture layer. The pixel layer is adjacent the optical filter opposite the lens layer and includes a calibration pixel substantially axially aligned with the calibration lens. The calibration pixel detects light power of an illumination source that outputs a band of wavelengths of light as a function of a parameter. The regulator modifies the parameter of the illumination source based on a light power detected by the calibration pixel.
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公开(公告)号：US20220201267A1
公开(公告)日：2022-06-23
申请号：US17549675
申请日：2021-12-13
Applicant: Ouster, Inc.
Inventor： Angus PACALA , Mark FRICHTL
Abstract: An optical system for collecting distance information within a field is provided. The optical system may include lenses for collecting photons from a field and may include lenses for distributing photons to a field. The optical system may include lens tubes that collimate collected photons, optical filters that reject normally incident light outside of the operating wavelength, and pixels that detect incident photons. The optical system may further include illumination sources that output photons at an operating wavelength.
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公开(公告)号：US20210318434A1
公开(公告)日：2021-10-14
申请号：US17239410
申请日：2021-04-23
Applicant: Ouster, Inc.
Inventor： Angus PACALA , Mark FRICHTL
IPC: G01S17/08 , G01S17/89 , G01S7/497 , G01S7/481 , G01S17/10 , G01S7/4863 , B81B5/00 , G01S17/931 , H01L31/02 , G01S17/88 , G02B27/30 , H01L27/146 , G02B26/10 , G06K9/00
Abstract: Embodiments describe a solid state electronic scanning LIDAR system that includes a scanning focal plane transmitting element and a scanning focal plane receiving element whose operations are synchronized so that the firing sequence of an emitter array in the transmitting element corresponds to a capturing sequence of a photosensor array in the receiving element. During operation, the emitter array can sequentially fire one or more light emitters into a scene and the reflected light can be received by a corresponding set of one or more photosensors through an aperture layer positioned in front of the photosensors. Each light emitter can correspond with an aperture in the aperture layer, and each aperture can correspond to a photosensor in the receiving element such that each light emitter corresponds with a specific photosensor in the receiving element.
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10.发明申请公开(公告)号：US20200209355A1
公开(公告)日：2020-07-02
申请号：US16696540
申请日：2019-11-26
Applicant: Ouster, Inc.
Inventor： Angus PACALA , Marvin Liu SHU
Abstract: An electronically scanning emitter array that includes a two-dimensional array of light emitters arranged in k emitter banks. Each of the k emitter banks can include a subset of the light emitters in the two-dimensional array and can be independently operable to emit light from its subset of emitters. The electronically scanning emitter array can further include first and second capacitor banks coupled to provide energy to the two-dimensional array of light emitters and emitter array driving circuitry coupled to the first and second capacitor banks and to the k emitter banks. Each of the first and second capacitor banks can include at least one capacitor. The emitter array driving circuitry can include a first high-side switch coupled between the first capacitor bank and a voltage source, a second high-side switch coupled between the second capacitor bank and the voltage source, and k/2 low-side switches coupled between the k emitter banks and ground; and the emitter driving circuitry can be configured to fire one emitter bank in the k emitter banks at a time according to a firing sequence until each of the k emitter banks are fired.
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