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    Multi-range time of flight sensing
    12.
    发明申请
    Multi-range time of flight sensing 审中-公开

    公开(公告)号：US20180341009A1

    公开(公告)日：2018-11-29

    申请号：US15586286

    申请日：2017-05-04

    Applicant: Apple Inc.

    Inventor： Cristiano L. Niclass ,  Alexander Shpunt ,  Gennadiy A. Agranov ,  Matthew C. Waldon ,  Mina A. Rezk ,  Thierry Oggier

    IPC: G01S7/481 ,  G01S17/42 ,  G01S17/89 ,  G01S7/486

    Abstract: An electro-optical device includes at least one laser light source and a beam steering device, which transmits and scan the at least one beam across a target scene. One or more sensing elements output a signal indicative of a time of incidence of a single photon on the sensing element from the target scene. Circuitry processes the signal in order to determine respective distances to points in the scene and controls the light source to emit the beam at the low level during a first scan, to identify, based on the first scan, the points in the scene that are located at respective distances from the device that are greater than a predefined threshold distance, and to control the laser light source during a second scan to emit the beam at the high level while the beam steering device directs the beam toward the identified points.

    Depth sensing using a sparse array of pulsed beams
    14.
    发明授权
    Depth sensing using a sparse array of pulsed beams 有权

    公开(公告)号：US12117286B2

    公开(公告)日：2024-10-15

    申请号：US16532513

    申请日：2019-08-06

    Applicant: APPLE INC.

    Inventor： Thierry Oggier

    IPC: G01B11/22 ,  G01S7/48 ,  G01S7/4865 ,  G01S17/10 ,  G01S17/89 ,  H01L31/107 ,  H01S5/183 ,  H01S5/32

    CPC classification number: G01B11/22 ,  G01S7/4865 ,  G01S17/10 ,  G01S17/89 ,  H01L31/107 ,  H01S5/183 ,  H01S5/32

    Abstract: Depth sensing apparatus includes a radiation source, including a first array of emitters arranged in multiple banks, which are configured to emit a first plurality of pulsed beams of optical radiation toward a target scene. A second plurality of sensing elements are arranged in a second array and are configured to output signals indicative of respective times of incidence of photons on the sensing elements, wherein the second plurality exceeds the first plurality. Objective optics form an image of the target scene on the array of sensing elements. Processing and control circuitry actuates the multiple banks in alternation and identifies, responsively to the output signals, areas of the second array on which the pulses of optical radiation reflected from corresponding regions of the target scene are incident.

    Depth sensing using multiple coherent emitters
    15.
    发明公开
    Depth sensing using multiple coherent emitters 审中-公开

    公开(公告)号：US20240288549A1

    公开(公告)日：2024-08-29

    申请号：US18113104

    申请日：2023-02-23

    Applicant: Apple Inc.

    Inventor： Thierry Oggier ,  Ehsan Shah-Hosseini ,  Edward Vail

    IPC: G01S7/481 ,  G01S7/4913 ,  G01S17/34

    CPC classification number: G01S7/4812 ,  G01S7/4815 ,  G01S7/4913 ,  G01S17/34

    Abstract: Range sensing apparatus includes a transmitter including an array of emitters configured to emit respective beams of coherent optical radiation and switching circuitry coupled to the emitters. An optical assembly is configured to divide each beam of the coherent optical radiation into a transmitted beam and a local beam, to project the local beam toward an optical detector, to project the transmitted beam toward a respective location on a target, and to direct optical radiation reflected from the respective location onto the optical detector so as to interfere optically with the local beam. A controller is coupled to apply amplitude-chirped electrical drive pulses to the transmitter while controlling the switching circuitry to temporally multiplex the electrical drive pulses among the emitters, and to receive and process electrical beat signals output by the optical detector in response to interference between the reflected optical radiation and the local beam.

    Global-shutter image sensor with time-of-flight sensing capability
    16.
    发明授权
    Global-shutter image sensor with time-of-flight sensing capability 有权

    公开(公告)号：US11558569B2

    公开(公告)日：2023-01-17

    申请号：US17324144

    申请日：2021-05-19

    Applicant: Apple Inc.

    Inventor： Gennadiy Agranov ,  Thierry Oggier

    IPC: H04N13/254 ,  H04N5/369 ,  H04N13/296 ,  H04N13/289 ,  H04N5/353 ,  H04N5/378

    Abstract: Apparatus for optical sensing includes first matrix of optical sensing elements, arranged on a semiconductor substrate in rows and columns. A second matrix of storage nodes is arranged on the substrate such that respective first and second storage nodes in the second matrix are disposed in proximity to each of the sensing elements within the first matrix. Switching circuitry couples each of the sensing elements to transfer photocharge to the respective first and second storage nodes. Control circuitry controls the switching circuitry in a depth sensing mode such that over a series of detection cycles, each of the sensing elements and a first neighboring sensing element are connected together to the respective first storage node during the first detection interval, and each of the sensing elements and the second neighboring sensing element are connected together to the respective second storage node during the second detection interval.

    Depth sensing using a sparse array of pulsed beams
    17.
    发明申请
    Depth sensing using a sparse array of pulsed beams 审中-公开

    公开(公告)号：US20200256993A1

    公开(公告)日：2020-08-13

    申请号：US16532513

    申请日：2019-08-06

    Applicant: APPLE INC.

    Inventor： Thierry Oggier

    IPC: G01S17/10 ,  G01S7/486 ,  G01S17/89

    Abstract: Depth sensing apparatus includes a radiation source, including a first array of emitters arranged in multiple banks, which are configured to emit a first plurality of pulsed beams of optical radiation toward a target scene. A second plurality of sensing elements are arranged in a second array and are configured to output signals indicative of respective times of incidence of photons on the sensing elements, wherein the second plurality exceeds the first plurality. Objective optics form an image of the target scene on the array of sensing elements. Processing and control circuitry actuates the multiple banks in alternation and identifies, responsively to the output signals, areas of the second array on which the pulses of optical radiation reflected from corresponding regions of the target scene are incident.

    Time-of-flight depth mapping with parallax compensation
    19.
    发明申请
    Time-of-flight depth mapping with parallax compensation 审中-公开

    公开(公告)号：US20190004156A1

    公开(公告)日：2019-01-03

    申请号：US15950186

    申请日：2018-04-11

    Applicant: Apple Inc.

    Inventor： Cristiano L. Niclass ,  Scott T. Smith ,  Thierry Oggier

    IPC: G01S7/486 ,  G01S17/42 ,  G01S17/89

    Abstract: An optical sensing device includes a light source, which is configured to emit one or more beams of light pulses at respective angles toward a target scene. An array of sensing elements is configured to output signals in response to incidence of photons on the sensing elements. Light collection optics are configured to image the target scene onto the array. Control circuitry is coupled to actuate the sensing elements only in one or more selected regions of the array, each selected region containing a respective set of the sensing elements in a part of the array onto which the light collection optics image a corresponding area of the target scene that is illuminated by the one of the beams, and to adjust a membership of the respective set responsively to a distance of the corresponding area from the device.

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