Patents by Inventor Mark D. Entwistle
Mark D. Entwistle 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: 20230110828Abstract: Systems and methods are provided herein for improved short range object detection in LiDAR systems. The associated systems may include a first portion and a second portion configured to rotate relative to one another. The system may also include a first magnet located on the second portion and arranged with a north pole of the first magnet facing a first direction. The system may also include a second magnet located on the second portion and arranged with a south pole of the second magnet facing the first direction. The system may also include a first sensor located on the first portion, wherein the first sensor is further configured to measure a first magnetic field of the first magnet and a second magnetic field of the second magnet as the first portion and second portion rotate relative to one another.Type: ApplicationFiled: November 21, 2022Publication date: April 13, 2023Applicant: Argo AI, LLCInventors: Mark D. ENTWISTLE, Bayard G. GARDINEER, IV, Gary BURKHOLDER, Christopher John TROWBRIDGE, Ryan Thomas DAVIS, William MORDARSKI, BILGE KOCER
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Patent number: 11604266Abstract: A method for developing a map of objects in a region surrounding a location is disclosed. The method includes interrogating the region along a detection axis with a series of optical pulses and detecting reflections of the optical pulses that originate at objects located along the detection axis. A multi-dimensional map of the region is developed by scanning the detection axis about the location in at least one dimension. The reflections are detected via a single-photon detector that is armed using a sub-gating scheme such that the single-photon detector selectively detects photons of reflections that originate only within each of a plurality of zones that collectively define the detection field. In some embodiments, the optical pulses have a wavelength within the range of 1350 nm to 1390 nm, which is a spectral range having a relatively high eye-safety threshold and a relatively low solar background.Type: GrantFiled: December 3, 2019Date of Patent: March 14, 2023Assignee: ARGO AI, LLCInventors: Evgenii Yuryevich Kotelnikov, William Paul Mordarski, Igor Kudryashov, Mark D. Entwistle, Sabbir Sajjad Rangwala
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Patent number: 11573302Abstract: Disclosed are Geiger-mode avalanche-photodiode-based LiDAR systems and methods that interrogate a detection region with a periodic series of optical pulses whose reflections are detected via a receiver comprising multiple Geiger-mode avalanche-photodiode-based pixels. The pixels of the receiver are configured to asynchronously disarm and rearm after absorption of a reflection. As a result, each pixel can detect multiple reflections of the same optical pulse during a single detection frame whose duration is defined by the periodicity of the series of optical pulses. Furthermore, each pixel can store time-of-flight data for each of multiple reflections detected during a detection frame. Each individual pixel of the receiver, therefore, is not blinded and inoperative for the remainder of a detection frame once it detects a first reflection.Type: GrantFiled: October 17, 2019Date of Patent: February 7, 2023Assignee: ARGO AI, LLCInventor: Mark D. Entwistle
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Publication number: 20220413096Abstract: A system and method are disclosed for providing a bi-directional data communication link within a LIDAR assembly that has a stationary portion attached to an autonomous vehicle and a second portion rotatably connected to the stationary portion. The second portion may include one or more emitting/receiving devices (e.g., lasers) for detecting objects surrounding the autonomous vehicle. A first and second differential capacitive elements may rotatably operate to download data from the second portion to the stationary portion. A third and fourth differential capacitive element may rotatably operate to upload data from the stationary portion to the second portion.Type: ApplicationFiled: August 30, 2022Publication date: December 29, 2022Applicant: Argo AI, LLCInventors: Mark D. ENTWISTLE, Bayard G. GARDINEER, IV, William MORDARSKI, Domenick SALVEMINI
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Publication number: 20220390549Abstract: A system and method are disclosed for providing a bi-directional data communication link within a LIDAR assembly that has a stationary portion attached to an autonomous vehicle and a second portion rotatably connected to the stationary portion. The second portion may include one or more emitting/receiving devices (e.g., lasers) for detecting objects surrounding the autonomous vehicle. A first printed circuit board including a first set of trace antennas. A second printed circuit board including a second set of trace antennas. The first printed circuit board may be configured to rotate 360-degrees in relation to the second printed circuit board so that the first set of trace antennas and the second set of trace antennas align to provide the bi-directional data link.Type: ApplicationFiled: March 9, 2022Publication date: December 8, 2022Applicant: Argo AI, LLCInventors: MARK D. ENTWISTLE, BAYARD G. GARDINEER, IV, RYAN DAVIS, WILLIAM MORDARSKI, BILGE KOCER
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Publication number: 20220393762Abstract: A system and method are disclosed for providing a bi-directional data communication link within a LIDAR assembly that has a stationary portion attached to an autonomous vehicle and a second portion rotatably connected to the stationary portion. The second portion may include one or more emitting/receiving devices (e.g., lasers) for detecting objects surrounding the autonomous vehicle. A first printed circuit board assembly (PCBA) having a first optical transceiver may be located within the stationary portion. A second PCBA having a second optical transceiver may be located within the second portion. A hollow shaft may be positioned so as to extend between the stationary portion and the second portion.Type: ApplicationFiled: March 8, 2022Publication date: December 8, 2022Applicant: Argo AI, LLCInventor: MARK D. ENTWISTLE
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Publication number: 20210116550Abstract: Disclosed are Geiger-mode avalanche-photodiode-based LiDAR systems and methods that interrogate a detection region with a periodic series of optical pulses whose reflections are detected via a receiver comprising multiple Geiger-mode avalanche-photodiode-based pixels. The pixels of the receiver are configured to asynchronously disarm and rearm after absorption of a reflection. As a result, each pixel can detect multiple reflections of the same optical pulse during a single detection frame whose duration is defined by the periodicity of the series of optical pulses. Furthermore, each pixel can store time-of-flight data for each of multiple reflections detected during a detection frame. Each individual pixel of the receiver, therefore, is not blinded and inoperative for the remainder of a detection frame once it detects a first reflection.Type: ApplicationFiled: October 17, 2019Publication date: April 22, 2021Inventor: Mark D. Entwistle
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Publication number: 20200103501Abstract: A method for developing a map of objects in a region surrounding a location is disclosed. The method includes interrogating the region along a detection axis with a series of optical pulses and detecting reflections of the optical pulses that originate at objects located along the detection axis. A multi-dimensional map of the region is developed by scanning the detection axis about the location in at least one dimension. The reflections are detected via a single-photon detector that is armed using a sub-gating scheme such that the single-photon detector selectively detects photons of reflections that originate only within each of a plurality of zones that collectively define the detection field. In some embodiments, the optical pulses have a wavelength within the range of 1350 nm to 1390 nm, which is a spectral range having a relatively high eye-safety threshold and a relatively low solar background.Type: ApplicationFiled: December 3, 2019Publication date: April 2, 2020Inventors: Evgenii Yuryevich Kotelnikov, William Paul Mordarski, Igor Kudryashov, Mark D. Entwistle, Sabbir Sajjad Rangwala
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Patent number: 10520591Abstract: A method for developing a map of objects in a region surrounding a location is disclosed. The method includes interrogating the region along a detection axis with a series of optical pulses and detecting reflections of the optical pulses that originate at objects located along the detection axis. A multi-dimensional map of the region is developed by scanning the detection axis about the location in at least one dimension. The reflections are detected via a single-photon detector that is armed using a sub-gating scheme such that the single-photon detector selectively detects photons of reflections that originate only within each of a plurality of zones that collectively define the detection field. In some embodiments, the optical pulses have a wavelength within the range of 1350 nm to 1390 nm, which is a spectral range having a relatively high eye-safety threshold and a relatively low solar background.Type: GrantFiled: March 7, 2017Date of Patent: December 31, 2019Assignee: ARGO AI, LLCInventors: Evgenii Yuryevich Kotelnikov, William Paul Mordarski, Igor Kudryashov, Mark D. Entwistle, Sabbir Sajjad Rangwala
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Publication number: 20170176576Abstract: A method for developing a map of objects in a region surrounding a location is disclosed. The method includes interrogating the region along a detection axis with a series of optical pulses and detecting reflections of the optical pulses that originate at objects located along the detection axis. A multi-dimensional map of the region is developed by scanning the detection axis about the location in at least one dimension. The reflections are detected via a single-photon detector that is armed using a sub-gating scheme such that the single-photon detector selectively detects photons of reflections that originate only within each of a plurality of zones that collectively define the detection field. In some embodiments, the optical pulses have a wavelength within the range of 1350 nm to 1390 nm, which is a spectral range having a relatively high eye-safety threshold and a relatively low solar background.Type: ApplicationFiled: March 7, 2017Publication date: June 22, 2017Inventors: Evgenii Yuryevich Kotelnikov, William Paul Mordarski, Igor Kudryashov, Mark D. Entwistle, Sabbir Sajjad Rangwala
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Patent number: 9625580Abstract: A method for developing a map of objects in a region surrounding a location is disclosed. The method includes interrogating the region along a detection axis with a series of optical pulses and detecting reflections of the optical pulses that originate at objects located along the detection axis. A multi-dimensional map of the region is developed by scanning the detection axis about the location in at least one dimension. The reflections are detected via a single-photon detector that is armed using a sub-gating scheme such that the single-photon detector selectively detects photons of reflections that originate only within each of a plurality of zones that collectively define the detection field. In some embodiments, the optical pulses have a wavelength within the range of 1350 nm to 1390 nm, which is a spectral range having a relatively high eye-safety threshold and a relatively low solar background.Type: GrantFiled: January 3, 2014Date of Patent: April 18, 2017Assignee: Princeton Lightwave, Inc.Inventors: Evgenii Yuryevich Kotelnikov, William Paul Mordarski, Igor Kudryashov, Mark D. Entwistle, Sabbir Sajjad Rangwala
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Publication number: 20150192676Abstract: A method for developing a map of objects in a region surrounding a location is disclosed. The method includes interrogating the region along a detection axis with a series of optical pulses and detecting reflections of the optical pulses that originate at objects located along the detection axis. A multi-dimensional map of the region is developed by scanning the detection axis about the location in at least one dimension. The reflections are detected via a single-photon detector that is armed using a sub-gating scheme such that the single-photon detector selectively detects photons of reflections that originate only within each of a plurality of zones that collectively define the detection field. In some embodiments, the optical pulses have a wavelength within the range of 1350 nm to 1390 nm, which is a spectral range having a relatively high eye-safety threshold and a relatively low solar background.Type: ApplicationFiled: January 3, 2014Publication date: July 9, 2015Applicant: Princeton Lightwave, Inc.Inventors: Evgenii Yuryevich Kotelnikov, William Paul Mordarski, Igor Kudryashov, Mark D. Entwistle, Sabbir Sajjad Rangwala