Patents by Inventor Samuel Lenius
Samuel Lenius has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240085564Abstract: Example embodiments relate to LIDAR systems with multi-faceted mirrors. An example embodiment includes a LIDAR system. The system includes a multi-faceted mirror that includes a plurality of reflective facets, which rotates about a first rotational axis. The system also includes a light emitter configured to emit a light signal toward one or more regions of a scene. Further, the system includes a light detector configured to detect a reflected light signal. In addition, the system includes an optical window positioned between the multi-faceted mirror and the one or more regions of the scene such that light reflected from one or more of the reflective facets is transmitted through the optical window. The optical window is positioned such that the optical window is non-perpendicular to the direction toward which the light emitted along the optical axis is directed for all angles of the multi-faceted mirror.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Inventors: Blaise Gassend, Ralph H. Shepard, Samuel Lenius, Ryan Davis
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Publication number: 20240085498Abstract: An integrated hybrid rotary assembly is configured to provide power, torque and bi-directional communication to a rotatable sensor, such as a lidar, radar or optical sensor. A common ferrite core is shared by a motor, rotary transformer and radio frequency communication link. This hybrid configuration reduces cost, simplifies the manufacturing process, and can improve system reliability by employing a minimum number of parts. The assembly can be integrated with the sensor unit, which may be used in vehicles and other systems.Type: ApplicationFiled: November 20, 2023Publication date: March 14, 2024Inventors: Paul Thomas Hansen Karplus, Samuel Lenius
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Patent number: 11916273Abstract: A rotary joint includes a shaft having a first end, a second end, and a cavity. The rotary joint includes a first waveguide section having a first proximal end and a first distal end. The first proximal end of the first waveguide section is positioned within the cavity and secured to the inner surface of the shaft. The rotary joint includes a second waveguide section that includes a second proximal end and a second distal end. The second proximal end of the second waveguide section is positioned within the cavity of the shaft and unsecured to the inner surface of the shaft to form a radial gap between an outer surface of the second proximal end and a laterally adjacent portion of the inner surface of the shaft. The shaft and the first waveguide section are configured to rotate about the rotational axis and relative to the second waveguide section.Type: GrantFiled: October 9, 2020Date of Patent: February 27, 2024Assignee: Waymo LLCInventors: Zhe Li, Samuel Lenius, Chia-Hung Lin, Craig Moriwaki, William Martin Peters, Jr., Kelvin Kwong, Robert J. Lockwood, Peng Ye
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Patent number: 11860249Abstract: An integrated hybrid rotary assembly is configured to provide power, torque and bi-directional communication to a rotatable sensor, such as a lidar, radar or optical sensor. A common ferrite core is shared by a motor, rotary transformer and radio frequency communication link. This hybrid configuration reduces cost, simplifies the manufacturing process, and can improve system reliability by employing a minimum number of parts. The assembly can be integrated with the sensor unit, which may be used in vehicles and other systems.Type: GrantFiled: October 6, 2022Date of Patent: January 2, 2024Assignee: Waymo LLCInventors: Paul Thomas Hansen Karplus, Samuel Lenius
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Publication number: 20230275333Abstract: A vehicle having a communication system is disclosed. The system includes two electrical couplings, coupled by way of a rotary joint having a bearing waveguide. Each electrical coupling includes an interface waveguide configured to couple to external signals. Each electrical coupling also includes a waveguide section configured to propagate electromagnetic signals between the interface waveguide and the bearing waveguide of the rotary joint. Additionally, the rotary joint is configured to allow one electrical coupling to rotate with respect to the other electrical coupling. An axis of rotation of the rotary joint is defined by a center of a portion of the waveguides. Yet further, the rotary joint allows electromagnetic energy to propagate between the waveguides of the electrical couplings.Type: ApplicationFiled: May 4, 2023Publication date: August 31, 2023Inventors: Zhe Li, Jamal Izadian, Pierre-yves Droz, Min Wang, Samuel Lenius, Paul Karplus, Kyla Purvis
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Patent number: 11726488Abstract: A light detection and ranging (LIDAR) device scans through a scanning zone while emitting light pulses and receives reflected signals corresponding to the light pulses. The LIDAR device scans the emitted light pulses through the scanning zone by reflecting the light pulses from an array of oscillating mirrors. The mirrors are operated by a set of electromagnets arranged to apply torque on the mirrors, and an orientation feedback system senses the orientations of the mirrors. Driving parameters for each mirror are determined based on information from the orientation feedback system. The driving parameters can be used to drive the mirrors in phase at an operating frequency despite variations in moments of inertia and resonant frequencies among the mirrors.Type: GrantFiled: November 1, 2021Date of Patent: August 15, 2023Assignee: Waymo LLCInventors: Drew Ulrich, Pierre-yves Droz, Samuel Lenius
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Patent number: 11688917Abstract: A vehicle having a communication system is disclosed. The system includes two electrical couplings, coupled by way of a rotary joint having a bearing waveguide. Each electrical coupling includes an interface waveguide configured to couple to external signals. Each electrical coupling also includes a waveguide section configured to propagate electromagnetic signals between the interface waveguide and the bearing waveguide of the rotary joint. Additionally, the rotary joint is configured to allow one electrical coupling to rotate with respect to the other electrical coupling. An axis of rotation of the rotary joint is defined by a center of a portion of the waveguides. Yet further, the rotary joint allows electromagnetic energy to propagate between the waveguides of the electrical couplings.Type: GrantFiled: October 6, 2021Date of Patent: June 27, 2023Assignee: Waymo LLCInventors: Zhe Li, Jamal Izadian, Pierre-yves Droz, Min Wang, Samuel Lenius, Paul Karplus, Kyla Purvis
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Patent number: 11669101Abstract: A light detection and ranging (LIDAR) device scans through a scanning zone while emitting light pulses and receives reflected signals corresponding to the light pulses. The LIDAR device scans the emitted light pulses through the scanning zone by reflecting the light pulses from an array of oscillating mirrors. The mirrors are operated by a set of electromagnets arranged to apply torque on the mirrors, and an orientation feedback system senses the orientations of the mirrors. Driving parameters for each mirror are determined based on information from the orientation feedback system. The driving parameters can be used to drive the mirrors in phase at an operating frequency despite variations in moments of inertia and resonant frequencies among the mirrors.Type: GrantFiled: May 19, 2021Date of Patent: June 6, 2023Assignee: Waymo LLCInventors: Drew Ulrich, Pierre-yves Droz, Samuel Lenius
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Publication number: 20230103212Abstract: Example embodiments relate to LIDAR systems with multi-faceted mirrors. An example embodiment includes a LIDAR system. The system includes a multi-faceted mirror that includes a plurality of reflective facets, which rotates about a first rotational axis. The system also includes a light emitter configured to emit a light signal toward one or more regions of a scene. Further, the system includes a light detector configured to detect a reflected light signal. In addition, the system includes an optical window positioned between the multi-faceted mirror and the one or more regions of the scene such that light reflected from one or more of the reflective facets is transmitted through the optical window. The optical window is positioned such that the optical window is non-perpendicular to the direction toward which the light emitted along the optical axis is directed for all angles of the multi-faceted mirror.Type: ApplicationFiled: November 21, 2022Publication date: March 30, 2023Inventors: Blaise Gassend, Ralph H. Shepard, Samuel Lenius, Ryan Davis
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Publication number: 20230029499Abstract: An integrated hybrid rotary assembly is configured to provide power, torque and bi-directional communication to a rotatable sensor, such as a lidar, radar or optical sensor. A common ferrite core is shared by a motor, rotary transformer and radio frequency communication link. This hybrid configuration reduces cost, simplifies the manufacturing process, and can improve system reliability by employing a minimum number of parts. The assembly can be integrated with the sensor unit, which may be used in vehicles and other systems.Type: ApplicationFiled: October 6, 2022Publication date: February 2, 2023Inventors: Paul Thomas Hansen Karplus, Samuel Lenius
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Patent number: 11536845Abstract: Example embodiments relate to LIDAR systems with multi-faceted mirrors. An example embodiment includes a LIDAR system. The system includes a multi-faceted mirror that includes a plurality of reflective facets, which rotates about a first rotational axis. The system also includes a light emitter configured to emit a light signal toward one or more regions of a scene. Further, the system includes a light detector configured to detect a reflected light signal. In addition, the system includes an optical window positioned between the multi-faceted mirror and the one or more regions of the scene such that light reflected from one or more of the reflective facets is transmitted through the optical window. The optical window is positioned such that the optical window is non-perpendicular to the direction toward which the light emitted along the optical axis is directed for all angles of the multi-faceted mirror.Type: GrantFiled: December 28, 2018Date of Patent: December 27, 2022Assignee: Waymo LLCInventors: Blaise Gassend, Ralph H. Shepard, Samuel Lenius, Ryan Davis
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Patent number: 11506731Abstract: An integrated hybrid rotary assembly is configured to provide power, torque and bi-directional communication to a rotatable sensor, such as a lidar, radar or optical sensor. A common ferrite core is shared by a motor, rotary transformer and radio frequency communication link. This hybrid configuration reduces cost, simplifies the manufacturing process, and can improve system reliability by employing a minimum number of parts. The assembly can be integrated with the sensor unit, which may be used in vehicles and other systems.Type: GrantFiled: November 22, 2019Date of Patent: November 22, 2022Assignee: Waymo LLCInventors: Paul Thomas Hansen Karplus, Samuel Lenius
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Publication number: 20220082660Abstract: Example embodiments relate to light detection and ranging (lidar) devices having a light-guide manifold. An example lidar device includes a transmit subsystem. The transmit subsystem includes a light emitter. The transmit subsystem also includes a light-guide manifold optically coupled to the light emitter. Further, the transmit subsystem includes a telecentric lens assembly optically coupled to the light-guide manifold. The lidar device also includes a receive subsystem. The receive subsystem includes the telecentric lens assembly. The receive subsystem also includes an aperture plate having an aperture defined therein. The aperture plate is positioned at a focal plane of the telecentric lens assembly. Further, the receive subsystem includes a silicon photomultiplier (SiPM) positioned to receive light traveling through the aperture.Type: ApplicationFiled: December 15, 2020Publication date: March 17, 2022Inventors: Pierre-Yves Droz, Ralph H. Shepard, Augusto Tazzoli, David Hutchison, David Schleuning, Nathaniel Golshan, Nathaniel Quillin, Andrew Abo, Caner Onal, Michael Tom, Robert Lockwood, Kelvin Kwong, Daiwei Li, Drew Ulrich, Simon Ellgas, Chandra Kakani, Erin Eppard, Samuel Lenius, Justin Andrade, James Dunphy
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Publication number: 20220029256Abstract: A vehicle having a communication system is disclosed. The system includes two electrical couplings, coupled by way of a rotary joint having a bearing waveguide. Each electrical coupling includes an interface waveguide configured to couple to external signals. Each electrical coupling also includes a waveguide section configured to propagate electromagnetic signals between the interface waveguide and the bearing waveguide of the rotary joint. Additionally, the rotary joint is configured to allow one electrical coupling to rotate with respect to the other electrical coupling. An axis of rotation of the rotary joint is defined by a center of a portion of the waveguides. Yet further, the rotary joint allows electromagnetic energy to propagate between the waveguides of the electrical couplings.Type: ApplicationFiled: October 6, 2021Publication date: January 27, 2022Inventors: Zhe Li, Jamal Izadian, Pierre-yves Droz, Min Wang, Samuel Lenius, Paul Karplus, Kyla Purvis
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Patent number: 11194340Abstract: A light detection and ranging (LIDAR) device scans through a scanning zone while emitting light pulses and receives reflected signals corresponding to the light pulses. The LIDAR device scans the emitted light pulses through the scanning zone by reflecting the light pulses from an array of oscillating mirrors. The mirrors are operated by a set of electromagnets arranged to apply torque on the mirrors, and an orientation feedback system senses the orientations of the mirrors. Driving parameters for each mirror are determined based on information from the orientation feedback system. The driving parameters can be used to drive the mirrors in phase at an operating frequency despite variations in moments of inertia and resonant frequencies among the mirrors.Type: GrantFiled: March 9, 2019Date of Patent: December 7, 2021Assignee: Waymo LLCInventors: Drew Ulrich, Pierre-yves Droz, Samuel Lenius
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Patent number: 11152675Abstract: A vehicle having a communication system is disclosed. The system includes two electrical couplings, coupled by way of a rotary joint having a bearing waveguide. Each electrical coupling includes an interface waveguide configured to couple to external signals. Each electrical coupling also includes a waveguide section configured to propagate electromagnetic signals between the interface waveguide and the bearing waveguide of the rotary joint. Additionally, the rotary joint is configured to allow one electrical coupling to rotate with respect to the other electrical coupling. An axis of rotation of the rotary joint is defined by a center of a portion of the waveguides. Yet further, the rotary joint allows electromagnetic energy to propagate between the waveguides of the electrical couplings.Type: GrantFiled: August 6, 2019Date of Patent: October 19, 2021Assignee: Waymo LLCInventors: Zhe Li, Jamal Izadian, Pierre-yves Droz, Min Wang, Samuel Lenius, Paul Karplus, Kyla Purvis
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Publication number: 20210278503Abstract: A vehicle is provided that includes one or more wheels positioned at a bottom side of the vehicle. The vehicle also includes a first light detection and ranging device (LIDAR) positioned at a top side of the vehicle opposite to the bottom side. The first LIDAR is configured to scan an environment around the vehicle based on rotation of the first LIDAR about an axis. The first LIDAR has a first resolution. The vehicle also includes a second LIDAR configured to scan a field-of-view of the environment that extends away from the vehicle along a viewing direction of the second LIDAR. The second LIDAR has a second resolution. The vehicle also includes a controller configured to operate the vehicle based on the scans of the environment by the first LIDAR and the second LIDAR.Type: ApplicationFiled: March 8, 2021Publication date: September 9, 2021Inventors: Gaetan Pennecot, Zachary Morriss, Samuel Lenius, Dorel lonut lordache, Daniel Gruver, Pierre-Yves Droz, Luke Wachter, Drew Ulrich, William McCann, Rahim Pardhan, Bernard Fidric, Anthony Levandowski, Peter Avram
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Patent number: 11042164Abstract: A light detection and ranging (LIDAR) device scans through a scanning zone while emitting light pulses and receives reflected signals corresponding to the light pulses. The LIDAR device scans the emitted light pulses through the scanning zone by reflecting the light pulses from an array of oscillating mirrors. The mirrors are operated by a set of electromagnets arranged to apply torque on the mirrors, and an orientation feedback system senses the orientations of the mirrors. Driving parameters for each mirror are determined based on information from the orientation feedback system. The driving parameters can be used to drive the mirrors in phase at an operating frequency despite variations in moments of inertia and resonant frequencies among the mirrors.Type: GrantFiled: June 5, 2017Date of Patent: June 22, 2021Assignee: Waymo LLCInventors: Drew Ulrich, Pierre-yves Droz, Samuel Lenius
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Patent number: 10976437Abstract: A vehicle is provided that includes one or more wheels positioned at a bottom side of the vehicle. The vehicle also includes a first light detection and ranging device (LIDAR) positioned at a top side of the vehicle opposite to the bottom side. The first LIDAR is configured to scan an environment around the vehicle based on rotation of the first LIDAR about an axis. The first LIDAR has a first resolution. The vehicle also includes a second LIDAR configured to scan a field-of-view of the environment that extends away from the vehicle along a viewing direction of the second LIDAR. The second LIDAR has a second resolution. The vehicle also includes a controller configured to operate the vehicle based on the scans of the environment by the first LIDAR and the second LIDAR.Type: GrantFiled: September 26, 2017Date of Patent: April 13, 2021Assignee: Waymo LLCInventors: Gaetan Pennecot, Zachary Morriss, Samuel Lenius, Dorel Ionut Iordache, Daniel Gruver, Pierre-Yves Droz, Luke Wachter, Drew Ulrich, William Mccann, Rahim Pardhan, Bernard Fidric, Anthony Levandowski, Peter Avram
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Patent number: 10931175Abstract: An apparatus includes a first platform and a second platform configured to rotate relative to the first platform about an axis. A magnet ring is mounted to the first platform and centered around the axis. The magnet ring includes four or more magnetized poles positioned such that each respective boundary between neighboring poles is shifted relative to a corresponding nominal boundary defined by a uniform spacing of boundaries of the poles around the magnet ring. The shifted boundaries of the poles define a characteristic shift pattern for the magnet ring. A magnetic field sensor is connected to the second platform. Circuitry is configured to (i) determine a magnetic field pattern generated by the poles based on data generated by the sensor and (ii) determine a rotational position of the first platform relative to the second platform by correlating the magnetic field pattern to the characteristic shift pattern.Type: GrantFiled: December 28, 2018Date of Patent: February 23, 2021Assignee: Waymo LLCInventors: Blaise Gassend, Samuel Lenius