Patents by Inventor Simon Verghese
Simon Verghese 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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Patent number: 10778047Abstract: A wireless energy transfer system includes a foreign object debris detection system. The system includes at least one wireless energy transfer source configured to generate an oscillating magnetic field. The foreign object debris may be detected by at least one field gradiometer positioned in the oscillating magnetic field. The voltage of the at least one field gradiometer may be measured using readout circuitry and a feedback loop based on the readings from the gradiometers may be used to control the parameters of the wireless energy source.Type: GrantFiled: July 13, 2018Date of Patent: September 15, 2020Assignee: WiTricity CorporationInventors: Simon Verghese, Morris P. Kesler, Katherine L. Hall, Herbert T. Lou
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Publication number: 20200193878Abstract: This technology relates to a display mounted messaging system. The display mounted messaging system may include a light emitting diode (LED) display attached to a housing of a sensor. The housing of the sensor may rotate. The display mounted messaging system may also include an LED controller which is configured to selectively activate and deactivate at least one LED in the LED display, to provide a message in the direction of an intended recipient.Type: ApplicationFiled: December 13, 2018Publication date: June 18, 2020Inventors: Ralph Hamilton Shepard, Pierre-Yves Droz, Simon Verghese
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Patent number: 10686337Abstract: The disclosure features apparatus, methods, and systems for wireless power transfer that include a power source featuring at least one resonator, a power receiver featuring at least one resonator, a first detector featuring one or more loops of conductive material and configured to generate an electrical signal based on a magnetic field between the power source and the power receiver, a second detector featuring conductive material, and control electronics coupled to the first and second detectors, where during operation, the control electronics are configured to measure the electrical signal of the first detector and compare the measured electrical signal of the first detector to baseline electrical information for the first detector to determine information about whether debris is positioned between the power source and the power receiver.Type: GrantFiled: February 15, 2019Date of Patent: June 16, 2020Assignee: WiTricity CorporationInventors: Arunanshu Mohan Roy, Noam Katz, Andre B. Kurs, Christopher Buenrostro, Simon Verghese, Morris P. Kesler, Katherine L. Hall, Herbert Toby Lou
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Publication number: 20200169701Abstract: Example implementations are provided for an arrangement of co-aligned rotating sensors. One example device includes a light detection and ranging (LIDAR) transmitter that emits light pulses toward a scene according to a pointing direction of the device. The device also includes a LIDAR receiver that detects reflections of the emitted light pulses reflecting from the scene. The device also includes an image sensor that captures an image of the scene based on at least external light originating from one or more external light sources. The device also includes a platform that supports the LIDAR transmitter, the LIDAR receiver, and the image sensor in a particular relative arrangement. The device also includes an actuator that rotates the platform about an axis to adjust the pointing direction of the device.Type: ApplicationFiled: October 3, 2019Publication date: May 28, 2020Inventors: Pierre-Yves Droz, Simon Verghese, Brendan Hermalyn
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Patent number: 10649306Abstract: An integrated optical beam steering device includes a planar dielectric lens that collimates beams from different inputs in different directions within the lens plane. It also includes an output coupler, such as a grating or photonic crystal, that guides the collimated beams in different directions out of the lens plane. A switch matrix controls which input port is illuminated and hence the in-plane propagation direction of the collimated beam. And a tunable light source changes the wavelength to control the angle at which the collimated beam leaves the plane of the substrate. The device is very efficient, in part because the input port (and thus in-plane propagation direction) can be changed by actuating only log2 N of the N switches in the switch matrix. It can also be much simpler, smaller, and cheaper because it needs fewer control lines than a conventional optical phased array with the same resolution.Type: GrantFiled: February 25, 2019Date of Patent: May 12, 2020Assignee: Massachusetts Institute of TechnologyInventors: Scott A. Skirlo, Cheryl Marie Sorace-Agaskar, Marin Soljacic, Simon Verghese, Jeffrey S. Herd, Paul William Juodawlkis, Yi Yang, Dirk Robert Englund, Mihika Prabhu
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Publication number: 20200142069Abstract: The present disclosure relates to systems and methods that provide information about a scene based on a time-of-flight (ToF) sensor and a structured light pattern. In an example embodiment, a sensor system could include at least one ToF sensor configured to receive light from a scene. The sensor system could also include at least one light source configured to emit a structured light pattern and a controller that carries out operations. The operations include causing the at least one light source to illuminate at least a portion of the scene with the structured light pattern and causing the at least one ToF sensor to provide information indicative of a depth map of the scene based on the structured light pattern.Type: ApplicationFiled: November 1, 2018Publication date: May 7, 2020Inventors: Caner ONAL, David SCHLEUNING, Brendan HERMALYN, Simon VERGHESE, Alex MCCAULEY, Brandyn WHITE, Ury ZHILINSKY
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Patent number: 10636929Abstract: An avalanche photodiode detector is provided with a substrate including an array of avalanche photodiodes. An optical interface surface of the substrate is arranged for accepting external input radiation. There is provided at least one cross-talk blocking layer of material including apertures positioned to allow external input radiation to reach photodiodes and including material regions positioned for attenuating radiation in the substrate that is produced by photodiodes in the array. Alternatively at least one cross-talk blocking layer of material is disposed on the optical interface surface of the substrate to allow external input radiation to reach photodiodes and attenuate radiation in the substrate that is produced by photodiodes in the array. At least one cross-talk filter layer of material can be disposed in the substrate adjacent to the photodiode structures, including a material that absorbs radiation in the substrate that is produced by photodiodes in the array.Type: GrantFiled: April 30, 2010Date of Patent: April 28, 2020Assignee: Massachusetts Institute of TechnologyInventors: K. Alexander McIntosh, David C. Chapman, Joseph P. Donnelly, Douglas C. Oakley, Antonio Napoleone, Erik K. Duerr, Simon Verghese, Richard D. Younger
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Publication number: 20200103510Abstract: In one example, a LIDAR device includes a light sources that emits light and a transmit lens that directs the emitted light to illuminate a region of an environment with a field-of-view defined by the transmit lens. The LIDAR device also includes a receive lens that focuses at least a portion of incoming light propagating from the illuminated region of the environment along a predefined optical path. The LIDAR device also includes an array of light detectors positioned along the predefined optical path. The LIDAR device also includes an offset light detector positioned outside the predefined optical path. The LIDAR device also includes a controller that determines whether collected sensor data from the array of light detectors includes data associated with another light source different than the light source of the device based on output from the offset light detector.Type: ApplicationFiled: December 2, 2019Publication date: April 2, 2020Inventors: Pierre-Yves Droz, Simon Verghese
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Publication number: 20200052144Abstract: Example embodiments relate to controlling detection time in photodetectors. An example embodiment includes a device. The device includes a substrate. The device also includes a photodetector coupled to the substrate. The photodetector is arranged to detect light emitted from a light source that irradiates a top surface of the device. A depth of the substrate is at most 100 times a diffusion length of a minority carrier within the substrate so as to mitigate dark current arising from minority carriers photoexcited in the substrate based on the light emitted from the light source.Type: ApplicationFiled: October 18, 2019Publication date: February 13, 2020Inventors: Caner Onal, Simon Verghese, Pierre-Yves Droz
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Publication number: 20200041620Abstract: The present disclosure relates to systems and methods that provide both an image of a scene and depth information for the scene. An example system includes at least one time-of-flight (ToF) sensor and an imaging sensor. The ToF sensor and the imaging sensor are configured to receive light from a scene. The system also includes at least one light source and a controller that carries out operations. The operations include causing the at least one light source to illuminate at least a portion of the scene with illumination light according to an illumination schedule. The operations also include causing the at least one ToF sensor to provide information indicative of a depth map of the scene based on the illumination light. The operations additionally include causing the imaging sensor to provide information indicative of an image of the scene based on the illumination light.Type: ApplicationFiled: December 21, 2018Publication date: February 6, 2020Inventors: Caner ONAL, David SCHLEUNING, Brendan HERMALYN, Simon VERGHESE, Alex MCCAULEY, Brandyn WHITE, Ury ZHILINSKY
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Publication number: 20200014254Abstract: A control architecture for electric vehicle wireless power transmission systems that may be segmented so that certain essential and/or standardized control circuits, programs, algorithms, and the like, are permanent to the system and so that other non-essential and/or augmentable control circuits, programs, algorithms, and the like, may be reconfigurable and/or customizable by a user of the system. The control architecture may be distributed to various components of the wireless power system so that a combination of local or low-level controls operating at relatively high-speed can protect critical functionality of the system while higher-level and relatively lower speed control loops can be used to control other local and system-wide functionality.Type: ApplicationFiled: September 20, 2019Publication date: January 9, 2020Inventors: Simon Verghese, Morris P. Kesler, Katherine L. Hall, Herbert Toby Lou, Ron Fiorello
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Patent number: 10520592Abstract: In one example, a LIDAR device includes a light sources that emits light and a transmit lens that directs the emitted light to illuminate a region of an environment with a field-of-view defined by the transmit lens. The LIDAR device also includes a receive lens that focuses at least a portion of incoming light propagating from the illuminated region of the environment along a predefined optical path. The LIDAR device also includes an array of light detectors positioned along the predefined optical path. The LIDAR device also includes an offset light detector positioned outside the predefined optical path. The LIDAR device also includes a controller that determines whether collected sensor data from the array of light detectors includes data associated with another light source different than the light source of the device based on output from the offset light detector.Type: GrantFiled: December 31, 2016Date of Patent: December 31, 2019Assignee: Waymo LLCInventors: Pierre-Yves Droz, Simon Verghese
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Patent number: 10490687Abstract: Example embodiments relate to controlling detection time in photodetectors. An example embodiment includes a device. The device includes a substrate. The device also includes a photodetector coupled to the substrate. The photodetector is arranged to detect light emitted from a light source that irradiates a top surface of the device. A depth of the substrate is at most 100 times a diffusion length of a minority carrier within the substrate so as to mitigate dark current arising from minority carriers photoexcited in the substrate based on the light emitted from the light source.Type: GrantFiled: March 29, 2018Date of Patent: November 26, 2019Assignee: Waymo LLCInventors: Caner Onal, Simon Verghese, Pierre-Yves Droz
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Patent number: 10447973Abstract: Example implementations are provided for an arrangement of co-aligned rotating sensors. One example device includes a light detection and ranging (LIDAR) transmitter that emits light pulses toward a scene according to a pointing direction of the device. The device also includes a LIDAR receiver that detects reflections of the emitted light pulses reflecting from the scene. The device also includes an image sensor that captures an image of the scene based on at least external light originating from one or more external light sources. The device also includes a platform that supports the LIDAR transmitter, the LIDAR receiver, and the image sensor in a particular relative arrangement. The device also includes an actuator that rotates the platform about an axis to adjust the pointing direction of the device.Type: GrantFiled: August 8, 2017Date of Patent: October 15, 2019Assignee: Waymo LLCInventors: Pierre-Yves Droz, Simon Verghese, Brendan Hermalyn
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Patent number: 10424976Abstract: A control architecture for electric vehicle wireless power transmission systems that may be segmented so that certain essential and/or standardized control circuits, programs, algorithms, and the like, are permanent to the system and so that other non-essential and/or augmentable control circuits, programs, algorithms, and the like, may be reconfigurable and/or customizable by a user of the system. The control architecture may be distributed to various components of the wireless power system so that a combination of local or low-level controls operating at relatively high-speed can protect critical functionality of the system while higher-level and relatively lower speed control loops can be used to control other local and system-wide functionality.Type: GrantFiled: November 18, 2016Date of Patent: September 24, 2019Assignee: WiTricity CorporationInventors: Simon Verghese, Morris P. Kesler, Katherine L. Hall, Herbert Toby Lou, Ron Fiorello
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Publication number: 20190265574Abstract: An integrated optical beam steering device includes a planar dielectric lens that collimates beams from different inputs in different directions within the lens plane. It also includes an output coupler, such as a grating or photonic crystal, that guides the collimated beams in different directions out of the lens plane. A switch matrix controls which input port is illuminated and hence the in-plane propagation direction of the collimated beam. And a tunable light source changes the wavelength to control the angle at which the collimated beam leaves the plane of the substrate. The device is very efficient, in part because the input port (and thus in-plane propagation direction) can be changed by actuating only log2 N of the N switches in the switch matrix. It can also be much simpler, smaller, and cheaper because it needs fewer control lines than a conventional optical phased array with the same resolution.Type: ApplicationFiled: February 25, 2019Publication date: August 29, 2019Inventors: Scott A. SKIRLO, Cheryl Marie SORACE-AGASKAR, Marin SOLJACIC, Simon VERGHESE, Jeffrey S. HERD, Paul William JUODAWLKIS, Yi YANG, Dirk Robert ENGLUND, Mihika PRABHU
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Publication number: 20190237609Abstract: Example embodiments relate to controlling detection time in photodetectors. An example embodiment includes a device. The device includes a substrate. The device also includes a photodetector coupled to the substrate. The photodetector is arranged to detect light emitted from a light source that irradiates a top surface of the device. A depth of the substrate is at most 100 times a diffusion length of a minority carrier within the substrate so as to mitigate dark current arising from minority carriers photoexcited in the substrate based on the light emitted from the light source.Type: ApplicationFiled: March 29, 2018Publication date: August 1, 2019Inventors: Caner Onal, Simon Verghese, Pierre-Yves Droz
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Patent number: 10361334Abstract: An avalanche photodiode detector is provided with a substrate including an array of avalanche photodiodes. An optical interface surface of the substrate is arranged for accepting external input radiation. There is provided at least one cross-talk blocking layer of material including apertures positioned to allow external input radiation to reach photodiodes and including material regions positioned for attenuating radiation in the substrate that is produced by photodiodes in the array. Alternatively at least one cross-talk blocking layer of material is disposed on the optical interface surface of the substrate to allow external input radiation to reach photodiodes and attenuate radiation in the substrate that is produced by photodiodes in the array. At least one cross-talk filter layer of material can be disposed in the substrate adjacent to the photodiode structures, including a material that absorbs radiation in the substrate that is produced by photodiodes in the array.Type: GrantFiled: December 31, 2014Date of Patent: July 23, 2019Assignee: Massachusetts Institute of TechnologyInventors: K. Alexander McIntosh, David C. Chapman, Joseph P. Donnelly, Douglas C. Oakley, Antonio Napoleone, Erik K. Duerr, Simon Verghese, Richard D. Younger
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Publication number: 20190181694Abstract: The disclosure features apparatus, methods, and systems for wireless power transfer that include a power source featuring at least one resonator, a power receiver featuring at least one resonator, a first detector featuring one or more loops of conductive material and configured to generate an electrical signal based on a magnetic field between the power source and the power receiver, a second detector featuring conductive material, and control electronics coupled to the first and second detectors, where during operation, the control electronics are configured to measure the electrical signal of the first detector and compare the measured electrical signal of the first detector to baseline electrical information for the first detector to determine information about whether debris is positioned between the power source and the power receiver.Type: ApplicationFiled: February 15, 2019Publication date: June 13, 2019Inventors: Arunanshu Mohan Roy, Noam Katz, Andre B. Kurs, Christopher Buenrostro, Simon Verghese, Morris P. Kesler, Katherine L. Hall, Herbert Toby Lou
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Patent number: 10261389Abstract: An integrated optical beam steering device includes a planar dielectric lens that collimates beams from different inputs in different directions within the lens plane. It also includes an output coupler, such as a grating or photonic crystal, that guides the collimated beams in different directions out of the lens plane. A switch matrix controls which input port is illuminated and hence the in-plane propagation direction of the collimated beam. And a tunable light source changes the wavelength to control the angle at which the collimated beam leaves the plane of the substrate. The device is very efficient, in part because the input port (and thus in-plane propagation direction) can be changed by actuating only log2 N of the N switches in the switch matrix. It can also be much simpler, smaller, and cheaper because it needs fewer control lines than a conventional optical phased array with the same resolution.Type: GrantFiled: June 22, 2017Date of Patent: April 16, 2019Assignee: Massachusetts Institute of TechnologyInventors: Scott Skirlo, Cheryl Marie Sorace-Agaskar, Marin Soljacic, Simon Verghese, Jeffrey S. Herd, Paul William Juodawlkis, Yi Yang, Dirk Robert Englund, Mihika Prabhu