75 patents
Utility
Lidar system with semiconductor optical amplifier
23 Nov 20
In one embodiment, a lidar system includes a light source configured to emit an optical signal.
Lawrence Shah, Jason M. Eichenholz, Joseph G. LaChapelle, Alex Michael Sincore, Cheng Zhu
Filed: 6 Feb 20
Utility
Determining relative velocity using co-located pixels
19 Oct 20
A computer-implemented method of determining relative velocity between a vehicle and an object.
Tomi P. Maila, Pranav Maheshwari, Benjamin Englard
Filed: 19 Nov 18
Utility
Bit depth reduction of image pixels
19 Oct 20
The bit depth of the pixels in a camera image are reduced.
Richmond Hicks
Filed: 13 Mar 19
Utility
Coherent pulsed lidar system
12 Oct 20
In one embodiment, a lidar system includes a light source configured to emit (i) local-oscillator light and (ii) pulses of light, where each emitted pulse of light is coherent with a corresponding portion of the local-oscillator light.
Joseph G. LaChapelle, Jason M. Eichenholz, Alex Michael Sincore
Filed: 18 Feb 20
Utility
Combining Lidar and Camera Data
23 Sep 20
A system operating in a vehicle includes a lidar module, a camera, and a controller communicatively coupled to the camera and the lidar module.
Joseph G. LaChapelle, Jason M. Eichenholz
Filed: 4 Jun 20
Utility
Lidar System with Humidity Compensation
23 Sep 20
In one embodiment, a lidar system includes a light source configured to emit an optical signal that is directed into a field of regard (FOR) of the lidar system.
Jason M. Eichenholz
Filed: 20 Mar 19
Utility
Bit Depth Reduction of Image Pixels
16 Sep 20
The bit depth of the pixels in a camera image are reduced.
Richmond Hicks
Filed: 13 Mar 19
Utility
Lidar System with Polygon Mirror
9 Sep 20
A lidar system includes one or more light sources configured to generate a first beam of light and a second beam of light, a scanner configured to scan the first and second beams of light across a field of regard of the lidar system, and a receiver configured to detect the first beam of light and the second beam of light scattered by one or more remote targets.
Jason M. Eichenholz, Scott R. Campbell, John E. McWhirter, Matthew D. Weed, Lane A. Martin
Filed: 19 May 20
Utility
Lidar System with Range-ambiguity Mitigation
9 Sep 20
In one embodiment, a lidar system includes a light source configured to emit multiple optical signals directed into a field of regard of the lidar system.
David L. Paulsen
Filed: 27 Jun 19
Utility
Processing point clouds of vehicle sensors having variable scan line distributions using interpolation functions
7 Sep 20
A method for processing point clouds having variable spatial distributions of scan lines includes receiving a point cloud frame generated by a sensor configured to sense an environment through which a vehicle is moving.
Benjamin Englard, Eric C. Danziger, Austin K. Russell
Filed: 30 Oct 18
Utility
Processing point clouds of vehicle sensors having variable scan line distributions using voxel grids
24 Aug 20
A method for processing point clouds having variable spatial distributions of scan lines includes receiving a point cloud portion corresponding to an object in a vehicle environment, the point cloud portion including scan lines arranged according to a particular spatial distribution.
Benjamin Englard, Eric C. Danziger
Filed: 30 Oct 18
Utility
Lidar System with Spatial Light Modulator
12 Aug 20
In one embodiment, a lidar system includes a light source configured to emit a pulse of light and a scanner configured to direct the emitted pulse of light into a field of regard of the lidar system.
Joseph G. LaChapelle, Philip W. Smith, Matthew D. Weed, Jason M. Eichenholz
Filed: 11 Feb 20
Utility
Amplifier Input Protection Circuits
12 Aug 20
Amplifier input protection circuits are described.
Stephen D. Gaalema, Robert D. Still
Filed: 7 Feb 19
Utility
Sizing the Field of View of a Detector to Improve Operation of a Lidar System
12 Aug 20
A lidar system includes a light source, a scanner, and a receiver and is configured to detect remote targets located up to RMAX meters away.
Scott R. Campbell, Lane A. Martin, Matthew D. Weed, Jason M. Eichenholz
Filed: 28 Apr 20
Utility
Lidar detector system having range walk compensation
3 Aug 20
A detector system within a lidar receiver is configured to compensate for range walk error by detecting both the rising edge and the falling edge of a received light pulse as the envelope of the received light pulse passes through a particular detection (magnitude) threshold.
Joseph G. LaChapelle
Filed: 5 Oct 17
Utility
Amplifier assembly with semiconductor optical amplifier
20 Jul 20
In one embodiment, a laser system includes a seed laser diode configured to produce a free-space seed-laser beam and a seed-laser focusing lens configured to focus the seed-laser beam.
Alain Villeneuve, Jason M. Eichenholz, Laurance S. Lingvay
Filed: 11 Feb 19
Utility
Camera-gated Lidar System
8 Jul 20
A machine vision system comprises a camera configured to generate one or more images of a field of regard of the camera, a lidar system, and a processor.
Richmond Hicks, Matthew D. Weed, Jason M. Eichenholz
Filed: 12 Mar 20
Utility
Generating Environmental Parameters Based on Sensor Data Using Machine Learning
1 Jul 20
To generate a machine learning model for controlling autonomous vehicles, training sensor data is obtained from sensors associated with one or more vehicles, the sensor data indicative of physical conditions of an environment in which the one or more vehicles operate, and a machine learning (ML) model is trained using the training sensor data.
Dmytro Trofymov, Pranav Maheshwari, Vahid R. Ramezani
Filed: 5 Mar 19
Utility
Lidar System with Multiple Comparators and Time-to-digital Converters
17 Jun 20
A lidar system includes a transmitter that encodes successive transmit pulses with different pulse characteristics and a receiver that detects the pulse characteristics of each received (scattered or reflected) pulse and that distinguishes between the received pulses based on the detected pulse characteristics.
Scott R. Campbell, Joseph G. LaChapelle, Jason M. Eichenholz, Austin K. Russell
Filed: 26 Jan 20
Utility
Protecting detector in a lidar system using off-axis illumination
15 Jun 20
A lidar system includes a light source configured to emit pulses of light, a scanner configured to direct the pulses of light along a scan direction, and a receiver with a detector configured to detect the pulses of light scattered by remote targets.
Scott R. Campbell
Filed: 21 Sep 17