60 patents
Page 3 of 3
Utility
Methods and Systems for Thermal Control of an Optical Source or Optical Filter In a Light Detection and Ranging (Lidar) Apparatus
17 Jun 21
A Light Detection And Ranging (LIDAR) apparatus includes an optical emission source configured to emit an optical signal having a wavelength that varies based on a temperature of the optical emission source and/or an optical filter element that is configured to receive a reflection of the optical signal, the optical filter element having a passband that varies based on a temperature of the optical filter element; a thermal controller that is configured to generate a thermal control signal responsive to a temperature measurement related to the optical emission source or the optical filter element; and a temperature control element that is configured to adjust a temperature of the optical emission source or the optical filter element responsive to the thermal control signal.
Christine Elizabeth Cordeiro, Hod Finkelstein, Jamie Stokes, Neil Telfer
Filed: 5 Feb 21
Utility
Ultra-small vertical cavity surface emitting laser (VCSEL) and arrays incorporating the same
30 Mar 21
A laser diode includes a semiconductor structure having an n-type layer, an active region, and a p-type layer.
Scott Burroughs, Brent Fisher, James Carter
Filed: 12 Apr 18
Utility
Dynamic Range Improvements In Lidar Applications
23 Sep 20
A LIDAR system includes a detector array comprising a first detector region and a second detector region, wherein the first detector region comprises a first detector and the second detector region comprises a second detector, at least one optical element configured to separate light received at the at least one optical element into a first portion and a second portion, incident on the first detector and the second detector, respectively, wherein the at least one optical element is configured to alter a characteristic of the light, and a circuit configured to receive a first detection signal from the first detector responsive to the first portion of the light that is incident thereon and a second detection signal from the second detector responsive to the second portion of the light that is incident thereon, and to generate an improved signal based on the first and second detection signals.
Kristopher McGuire
Filed: 16 Mar 20
Utility
Extended Dynamic Range and Reduced Power Imaging for Lidar Detector Arrays
9 Sep 20
A Light Detection And Ranging (LIDAR) detector circuit includes a plurality of detector pixels, where each or a respective detector pixel of the detector pixels includes a plurality of detector elements.
Robert Henderson, Tarek Al Abbas, Neil Calder, Hod Finkelstein
Filed: 4 Mar 20
Utility
Strobe Window Dependent Illumination for Flash Lidar
5 Aug 20
A Light Detection And Ranging (LIDAR) system includes one or more emitter elements configured to emit optical signals responsive to respective emitter control signals, one or more detector elements configured to detect incident photons for respective strobe windows of operation between pulses of the optical signals and at respective delays that differ with respect to the pulses, and at least one control circuit.
Robert Henderson, Tarek Al Abbas, Neil Calder, Hod Finkelstein
Filed: 30 Jan 20
Utility
Digital Pixels and Operating Methods Thereof
22 Jul 20
A Light Detection and Ranging (LIDAR) measurement circuit includes an array of single photon detectors configured to detect photons responsive to emission of an optical signal from an emitter, and a pixel processing circuit that is configured to calculate an estimated time of arrival of photons incident on the array of single photon detectors by utilizing a plurality of coarse histogram bins.
Robert Henderson, Tarek Al Abbas, Neil Calder
Filed: 16 Jan 20
Utility
High Dynamic Range Direct Time of Flight Sensor with Signal-dependent Effective Readout Rate
8 Jul 20
A Light Detection And Ranging (LIDAR) system includes an emitter unit including one or more emitter elements configured to output an emitter signal, and a detector array including a plurality of detector elements.
Neil Calder, Tarek Al Abbas, Hod Finkelstein
Filed: 2 Jan 20
Utility
Hybrid Center of Mass Method (CMM) Pixel
10 Jun 20
A Light Detection And Ranging (LIDAR) measurement circuit includes a control circuit configured to receive respective detection signals output from one or more single-photon detectors in response to a plurality of photons incident thereon.
Neil Calder, Tarek Al Abbas, Hod Finkelstein
Filed: 4 Dec 19
Utility
Beam Shaping for Ultra-small Vertical Cavity Surface Emitting Laser (Vcsel) Arrays
20 May 20
A laser array includes a plurality of laser diodes arranged and electrically connected to one another on a surface of a non-native substrate.
Scott Burroughs, Brent Fisher, James Carter, Russell Kanjorski
Filed: 21 Nov 19
Utility
Emitter Structures for Ultra-small Vertical Cavity Surface Emitting Lasers (Vcsels) and Arrays Incorporating the Same
20 May 20
A laser diode includes a semiconductor structure of a lower Bragg reflector layer, an active region, and an upper Bragg reflector layer.
Scott Burroughs, Brent Fisher, James Carter
Filed: 24 Nov 19
Utility
Digital Pixel
20 May 20
A Light Detection And Ranging (LIDAR) measurement circuit includes a processor circuit that is configured to receive detection signals output from a plurality of detector elements in response to a plurality of photons incident thereon during a detection window, identify detection events based on the detection signals, and calculating an estimated time of arrival of the plurality of photons based on a sum of respective numbers of the detection events that have been identified at respective time intervals of the detection window.
Robert Henderson, Hod Finkelstein
Filed: 18 Nov 19
Utility
Methods and Systems for Spatially Distributed Strobing
20 May 20
A Light Detection and Ranging (lidar) apparatus includes an emitter array comprising a plurality of emitter units configured to emit optical signals responsive to respective emitter control signals, a detector array comprising a plurality of detector pixels configured to be activated and deactivated for respective strobe windows between pulses of the optical signals; and a control circuit configured to provide a strobe signal to activate a first subset of the detector pixels while leaving a second subset of the detector pixels inactive.
Robert Henderson, Hod Finkelstein, Neil Calder, Tarek Al Abbas
Filed: 19 Nov 19
Utility
High Quantum Efficiency Geiger-mode Avalanche Diodes Including High Sensitivity Photon Mixing Structures and Arrays Thereof
29 Apr 20
A photodetector device includes a semiconductor material layer and at least one photodiode in the semiconductor material layer.
Hod Finkelstein
Filed: 29 Oct 19
Utility
Devices with Ultra-small Vertical Cavity Surface Emitting Laser Emitters Incorporating Beam Steering
15 Apr 20
A laser array includes a plurality of laser emitters arranged in a plurality of rows and a plurality of columns on a substrate that is non-native to the plurality of laser emitters, and a plurality of driver transistors on the substrate adjacent one or more of the laser diodes.
Scott Burroughs, Brent Fisher, James Carter
Filed: 15 Oct 19
Utility
Glare Mitigation In Lidar Applications
4 Mar 20
A Light Detection and Ranging (LIDAR) apparatus includes one or more optical elements configured to direct incident light in one or more directions, and a detector array including a plurality of detector pixels configured to output detection signals responsive to light provided thereto by the one or more optical elements.
Brent Fisher, Dietrich Dehlinger
Filed: 28 Aug 19
Utility
Integrated Lidar Image-sensor Devices and Systems and Related Methods of Operation
19 Feb 20
A Light Detection and Ranging (LIDAR) apparatus includes a detector having a first pixel and a second pixel configured to output respective detection signals responsive to light incident thereon, and receiver optics configured to collect the light over a field of view and direct first and second portions of the light to the first and second pixels, respectively.
Hod Finkelstein, Dietrich Dehlinger, Scott Burroughs, Brent Fisher
Filed: 15 Aug 19
Utility
Emitter structures for ultra-small vertical cavity surface emitting lasers (VCSELs) and arrays incorporating the same
6 Jan 20
A laser diode includes a semiconductor structure of a lower Bragg reflector layer, an active region, and an upper Bragg reflector layer.
Scott Burroughs, Brent Fisher, James Carter
Filed: 11 Apr 18
Utility
Beam shaping for ultra-small vertical cavity surface emitting laser (VCSEL) arrays
30 Dec 19
A laser array includes a plurality of laser diodes arranged and electrically connected to one another on a surface of a non-native substrate.
Scott Burroughs, Brent Fisher, James Carter, Russell Kanjorski
Filed: 11 Apr 18
Utility
Devices with ultra-small vertical cavity surface emitting laser emitters incorporating beam steering
18 Nov 19
A laser array includes a plurality of laser emitters arranged in a plurality of rows and a plurality of columns on a substrate that is non-native to the plurality of laser emitters, and a plurality of driver transistors on the substrate adjacent one or more of the laser diodes.
Scott Burroughs, Brent Fisher, James Carter
Filed: 11 Apr 18
Utility
Automatic Gain Control for Lidar for Autonomous Vehicles
9 Oct 19
A LIDAR system includes an emitter array configured to illuminate a field of view, a detector array configured to image the field of view, and a control circuit.
Hod Finkelstein, Scott Burroughs, Russell Kanjorski, Brent Fisher
Filed: 7 Apr 19