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公开(公告)号：US12248067B1
公开(公告)日：2025-03-11
申请号：US17895208
申请日：2022-08-25
Applicant: Waymo LLC
Inventor： Pierre-yves Droz , Gaetan Pennecot
IPC: G01S17/08 , G01S7/481 , G01S7/484 , G01S7/4865 , G01S17/10 , G01S17/42 , G01S17/89 , G08G1/16 , H01S5/06
Abstract: A laser diode firing circuit for a light detection and ranging (LIDAR) device that includes an inductively coupled feedback system is disclosed. The firing circuit includes a laser diode coupled in series with a transistor, such that current through the laser diode is controlled by the transistor. The laser diode is configured to emit a pulse of light in response to current flowing through the laser diode. A feedback loop is positioned to be inductively coupled to a current path of the firing circuit that includes the laser diode. As such, a change in current flowing through the laser diode induces a voltage in the feedback loop. A change in voltage across the leads of the feedback loop can be detected and the timing of the voltage change can be used to determine the time that current begins flowing through the laser diode.
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公开(公告)号：US12187141B2
公开(公告)日：2025-01-07
申请号：US18461646
申请日：2023-09-06
Applicant: Waymo LLC
Inventor： Samuel William Lenius , Pierre-yves Droz
IPC: B60L53/12 , B60L3/00 , B60L7/12 , B60L8/00 , B60L50/16 , B60L50/30 , B60L50/40 , G01S7/481 , H02J50/10 , H02J50/80 , G01S7/00 , G01S17/42 , G01S17/931
Abstract: A rotatable LIDAR device including contactless electrical couplings is disclosed. An example rotatable LIDAR device includes a vehicle electrical coupling including (i) a first conductive ring, (ii) a second conductive ring, and (iii) a first coil. The example rotatable LIDAR device further includes a LIDAR electrical coupling including (i) a third conductive ring, (ii) a fourth conductive ring, and (iii) a second coil. The example rotatable LIDAR device still further includes a rotatable LIDAR electrically coupled to the LIDAR electrical coupling. The first conductive ring and the third conductive ring form a first capacitor configured to transmit communications to the rotatable LIDAR, the second conductive ring and the fourth conductive ring form a second capacitor configured to transmit communications from the rotatable LIDAR, and the first coil and the second coil form a transformer configured to provide power to the rotatable LIDAR.
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公开(公告)号：US20250002009A1
公开(公告)日：2025-01-02
申请号：US18828864
申请日：2024-09-09
Applicant: Waymo LLC
Inventor： Pierre-yves Droz
Abstract: The present radio system transmits an electromagnetic signal to nearby devices requesting the device respond. The radio system also receives responses to the electromagnetic signal from the nearby devices. Based on the radio technology used, the signaling of the transmitted electromagnetic signal may be varied. For example, the transmitted electromagnetic signal may be a Bluetooth, 802.11, or other radio signal. A device that received the signal from the radio unit may transmit a response signal with the same radio technology. However, in some instances, the radio technology used for communication may operate on several radio (e.g., frequency) channels. Both the transmitter and receiver must operate on the same channel at the same time in order to communicate. Thus, it may be desirable to transmit the electromagnetic signal on more than one channel at the same time, in order to increase the chances that a nearby device responds.
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公开(公告)号：US20230406122A1
公开(公告)日：2023-12-21
申请号：US18461646
申请日：2023-09-06
Applicant: Waymo LLC
Inventor： Samuel William Lenius , Pierre-yves Droz
IPC: B60L53/12 , B60L3/00 , B60L7/12 , B60L8/00 , B60L50/30 , B60L50/16 , B60L50/40 , H02J50/10 , G01S7/481 , H02J50/80
CPC classification number: B60L53/12 , B60L3/0015 , B60L7/12 , B60L8/003 , B60L50/30 , B60L50/16 , B60L50/40 , H02J50/10 , G01S7/4817 , H02J50/80 , B60L2240/12 , B60L2240/16 , B60L2240/18 , B60L2240/20 , B60L2240/421 , B60L2240/441 , B60L2240/461 , B60L2240/622 , G01S17/42
Abstract: A rotatable LIDAR device including contactless electrical couplings is disclosed. An example rotatable LIDAR device includes a vehicle electrical coupling including (i) a first conductive ring, (ii) a second conductive ring, and (iii) a first coil. The example rotatable LIDAR device further includes a LIDAR electrical coupling including (i) a third conductive ring, (ii) a fourth conductive ring, and (iii) a second coil. The example rotatable LIDAR device still further includes a rotatable LIDAR electrically coupled to the LIDAR electrical coupling. The first conductive ring and the third conductive ring form a first capacitor configured to transmit communications to the rotatable LIDAR, the second conductive ring and the fourth conductive ring form a second capacitor configured to transmit communications from the rotatable LIDAR, and the first coil and the second coil form a transformer configured to provide power to the rotatable LIDAR.
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公开(公告)号：US11536809B1
公开(公告)日：2022-12-27
申请号：US16778707
申请日：2020-01-31
Applicant: Waymo LLC
Inventor： Pierre-yves Droz , Drew E. Ulrich
Abstract: Rotatable mirror assemblies and light detection and ranging systems containing rotatable mirror assemblies are described herein. An example rotatable mirror assembly may include (1) a housing having a top end, a bottom end, and a longitudinal axis intersecting the top and bottom ends, and (2) a set of reflective surfaces, where each reflective surface in the set is coupled to the top end of the housing and the bottom end of the housing such that each reflective surface possesses limited freedom of movement with respect to the housing.
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Patent Agency Ranking
公开(公告)号：US20220032791A1
公开(公告)日：2022-02-03
申请号：US17502846
申请日：2021-10-15
Applicant: Waymo LLC
Inventor： Samuel William Lenius , Pierre-yves Droz
IPC: B60L53/12 , B60L3/00 , B60L7/12 , B60L8/00 , B60L50/30 , B60L50/16 , B60L50/40 , G01S17/931 , H02J50/10 , G01S7/481 , H02J50/80
Abstract: A rotatable LIDAR device including contactless electrical couplings is disclosed. An example rotatable LIDAR device includes a vehicle electrical coupling including (i) a first conductive ring, (ii) a second conductive ring, and (iii) a first coil. The example rotatable LIDAR device further includes a LIDAR electrical coupling including (i) a third conductive ring, (ii) a fourth conductive ring, and (iii) a second coil. The example rotatable LIDAR device still further includes a rotatable LIDAR electrically coupled to the LIDAR electrical coupling. The first conductive ring and the third conductive ring form a first capacitor configured to transmit communications to the rotatable LIDAR, the second conductive ring and the fourth conductive ring form a second capacitor configured to transmit communications from the rotatable LIDAR, and the first coil and the second coil form a transformer configured to provide power to the rotatable LIDAR.
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公开(公告)号：US11054505B2
公开(公告)日：2021-07-06
申请号：US15881049
申请日：2018-01-26
Applicant: Waymo LLC
Inventor： Pierre-yves Droz , Gaetan Pennecot , Anthony Levandowski , Drew Eugene Ulrich , Zach Morriss , Luke Wachter , Dorel Ionut Iordache , William McCann , Daniel Gruver , Bernard Fidric , Samuel William Lenius
IPC: G01S7/48 , G01S7/481 , G01S17/87 , G01S17/86 , G01S17/931 , G01S13/931
Abstract: Systems and methods are described that relate to a light detection and ranging (LIDAR) device. The LIDAR device includes a fiber laser configured to emit light within a wavelength range, a scanning portion configured to direct the emitted light in a reciprocating manner about a first axis, and a plurality of detectors configured to sense light within the wavelength range. The device additionally includes a controller configured to receive target information, which may be indicative of an object, a position, a location, or an angle range. In response to receiving the target information, the controller may cause the rotational mount to rotate so as to adjust a pointing direction of the LIDAR. The controller is further configured to cause the LIDAR to scan a field-of-view (FOV) of the environment. The controller may determine a three-dimensional (3D) representation of the environment based on data from scanning the FOV.
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公开(公告)号：US10962883B2
公开(公告)日：2021-03-30
申请号：US16684955
申请日：2019-11-15
Applicant: Waymo LLC
Inventor： Bernard Fidric , Pierre-yves Droz , David Hutchison
Abstract: Systems and methods described herein relate to the manufacture of optical elements and optical systems. An example method includes overlaying a first mask on a photoresist material and a substrate, and causing a light source to illuminate the photoresist material through the first mask during a first exposure so as to define a first feature. During the first exposure, the light source is positioned at a non-normal angle with respect to a plane parallel to the substrate. The method includes developing the photoresist material so as to retain an elongate portion of the photoresist material on the substrate. A first end of the elongate portion includes an angled portion that is sloped at an angle with respect to a long axis of the elongate portion. The method also includes depositing a reflective material through a second mask onto the angled portion.
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公开(公告)号：US10578718B1
公开(公告)日：2020-03-03
申请号：US15445971
申请日：2017-02-28
Applicant: Waymo LLC
Inventor： Pierre-yves Droz , Drew E. Ulrich
Abstract: Rotatable mirror assemblies and light detection and ranging systems containing rotatable mirror assemblies are described herein. An example rotatable mirror assembly may include (1) a housing having a top end, a bottom end, and a longitudinal axis intersecting the top and bottom ends, and (2) a set of reflective surfaces, where each reflective surface in the set is coupled to the top end of the housing and the bottom end of the housing such that each reflective surface possesses limited freedom of movement with respect to the housing.
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公开(公告)号：US20200052531A1
公开(公告)日：2020-02-13
申请号：US16658499
申请日：2019-10-21
Applicant: Waymo LLC
Inventor： Samuel William Lenius , Pierre-yves Droz
IPC: H02J50/80 , B60L50/30 , B60L53/12 , B60L50/16 , B60L50/40 , H02J7/02 , B60L3/00 , B60L7/12 , B60L8/00 , H02J50/10 , G01S7/481 , G01S17/93
Abstract: A rotatable LIDAR device including contactless electrical couplings is disclosed. An example rotatable LIDAR device includes a vehicle electrical coupling including (i) a first conductive ring, (ii) a second conductive ring, and (iii) a first coil. The example rotatable LIDAR device further includes a LIDAR electrical coupling including (i) a third conductive ring, (ii) a fourth conductive ring, and (iii) a second coil. The example rotatable LIDAR device still further includes a rotatable LIDAR electrically coupled to the LIDAR electrical coupling. The first conductive ring and the third conductive ring form a first capacitor configured to transmit communications to the rotatable LIDAR, the second conductive ring and the fourth conductive ring form a second capacitor configured to transmit communications from the rotatable LIDAR, and the first coil and the second coil form a transformer configured to provide power to the rotatable LIDAR.
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