Delay-locked-loop timing error mitigation
Abstract
Systems, methods, and circuits provide delay-locked loop (DLL) timing error mitigation. A DLL false-lock detection system can include DLL circuitry configured to receive a reference clock signal having a time period. The system can include shift register circuitry and latched comparison circuitry which can determine a time period of a locked condition of the DLL delay line with respect to the reference clock signal time period. The system can determine whether the system is correctly locked to the base time period or incorrectly locked to a multiple of the base time period. A further system can operate to cause a phase detector circuitry in a DLL to ignore the first edge of a reference clock signal presented to the phase detector circuitry and thereby avoid stuck-lock conditions.
- Inventors:
- Issue Date:
- Research Org.:
- Allegro MicroSystems, LLC, Manchester, NH (United States)
- Sponsoring Org.:
- USDOE; National Aeronautics and Space Administration (NASA)
- OSTI Identifier:
- 2222098
- Patent Number(s):
- 11722141
- Application Number:
- 17/660,221
- Assignee:
- Allegro MicroSystems, LLC (Manchester, NH)
- DOE Contract Number:
- NNX17CP05C
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 04/22/2022
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Filippini, Leo, Myers, Charles, and Lee, Adam. Delay-locked-loop timing error mitigation. United States: N. p., 2023.
Web.
Filippini, Leo, Myers, Charles, & Lee, Adam. Delay-locked-loop timing error mitigation. United States.
Filippini, Leo, Myers, Charles, and Lee, Adam. Tue .
"Delay-locked-loop timing error mitigation". United States. https://www.osti.gov/servlets/purl/2222098.
@article{osti_2222098,
title = {Delay-locked-loop timing error mitigation},
author = {Filippini, Leo and Myers, Charles and Lee, Adam},
abstractNote = {Systems, methods, and circuits provide delay-locked loop (DLL) timing error mitigation. A DLL false-lock detection system can include DLL circuitry configured to receive a reference clock signal having a time period. The system can include shift register circuitry and latched comparison circuitry which can determine a time period of a locked condition of the DLL delay line with respect to the reference clock signal time period. The system can determine whether the system is correctly locked to the base time period or incorrectly locked to a multiple of the base time period. A further system can operate to cause a phase detector circuitry in a DLL to ignore the first edge of a reference clock signal presented to the phase detector circuitry and thereby avoid stuck-lock conditions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {8}
}
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Works referenced in this record:
Er,Yb:YAB laser system
patent, June 2016
- Nijjar, Anmol; LaChapelle, Joe; Williams, George
- US Patent Document 9,368,933
Controlling an autonomous vehicle based on independent driving decisions
patent, December 2019
- Englard, Benjamin; Augenbraun, Joseph E.
- US Patent Document 10,503,172
Single-lock delay locked loop with cycle counter and method therefore
patent, August 2018
- Qi, Jieming; Willey, Aaron
- US Patent Document 10,056,909
Pulse timing based on angle of view
patent, April 2019
- Weed, Matthew D.; Campbell, Scott R.; Martin, Lane A.
- US Patent Document 10,267,899
Autonomous vehicle technology for facilitating operation according to motion primitives
patent, August 2019
- Ramezani, Vahid R.; Englard, Benjamin; Maila, Tomi P.
- US Patent Document 10,394,243
Avalanche photodiode receiver
patent, January 2017
- Williams, George; Huntington, Andrew S.
- US Patent Document 9,553,216
Lidar system with improved scanning speed for high-resolution depth mapping
patent, November 2019
- Campbell, Scott R.; Eichenholz, Jason M.; Martin, Lane A.
- US Patent Document 10,488,496
Scan patterns for lidar systems
patent, April 2019
- Campbell, Scott R.; Cleye, Rodger W.; Eichenholz, Jason M.
- US Patent Document 10,267,898
Gear tooth sensor with peak and threshold detectors
patent, May 2016
- Foletto, Andrea; Morris, Michael; Drouin, Mathew
- US Patent Document 9,329,057
Systems and methods for current sensing
patent, November 2019
- Bussing, Wade; Latham, Alexander; Milano, Shaun D.
- US Patent Document 10,481,181
Lidar system with improved scanning speed for high-resolution depth mapping
patent, December 2017
- Campbell, Scott R.; Eichenholz, Jason M.; Martin, Lane A.
- US Patent Document 9,841,495
Object identification and labeling tool for training autonomous vehicle controllers
patent, April 2019
- Sachdeva, Prateek; Trofymov, Dmytro
- US Patent Document 10,275,689
Method and apparatus for pulsed harmonic ultraviolet lasers
patent, June 2014
- Alekel, Theodore; Dutton, David A.; Foster, David H.
- US Patent Document 8,743,453
Optical detector having a bandpass filter in a lidar system
patent, November 2018
- Eichenholz, Jason M.; Campbell, Scott R.; LaChapelle, Joseph G.
- US Patent Document 10,121,813
LIDAR transmitter and detector system using pulse encoding to reduce range ambiguity
patent, January 2020
- Campbell, Scott R.; LaChapelle, Joseph G.; Eichenholz, Jason M.
- US Patent Document 10,545,240
Methods and apparatus for sensor diagnostics including sensing element operation
patent, September 2018
- Milano, Shaun D.; El Bacha, Georges; Doogue, Michael C.
- US Patent Document 10,073,136
Training a machine learning based model of a vehicle perception component based on sensor settings
patent, December 2019
- Englard, Benjamin; Danziger, Eric C.
- US Patent Document 10,514,462
Object identification and labeling tool for training autonomous vehicle controllers
patent, January 2019
- Sachdeva, Prateek; Trofymov, Dmytro
- US Patent Document 10,169,678
Methods and apparatus for sensor diagnostics including programmable self-test signals
patent, March 2018
- Milano, Shaun D.; El Bacha, Georges; Doogue, Michael C.
- US Patent Document 9,910,088
DC-DC converter having feedforward for enhanced output voltage regulation
patent, October 2018
- Raval, Pranav; Mangtani, Vijay
- US Patent Document 10,110,128
Method and apparatus to recover from an erroneous logic state in an electronic system
patent, October 2015
- Fernandez, Devon
- US Patent Document 9,164,826
System and method for vibration detection with no loss of position information using a magnetic field sensor
patent, June 2021
- Geiger, Benjamin; Gillet, Cédric
- US Patent Document 11,029,176
Diffractive optical element in a lidar system to correct for backscan
patent, August 2018
- Campbell, Scott R.; Eichenholz, Jason M.
- US Patent Document 10,061,019
Time varying gain in an optical detector operating in a lidar system
patent, November 2018
- Gaalema, Stephen D.; Russell, Austin K.; LaChapelle, Joseph G.
- US Patent Document 10,139,478
Detection of passing magnetic articles while periodically adapting detection threshold
patent, June 1999
- Scheller, P. Karl; Vig, Ravi; Towne, Jay M.
- US Patent Document 5,917,320
Fiber-optic amplifier
patent, July 2019
- Shah, Lawrence; Villeneuve, Alain; Zhu, Cheng
- US Patent Document 10,348,051
Three-dimensional imager and projection device
patent, October 2013
- Russell, Austin K.
- US Patent Document 8,570,372
Lidar system
patent, May 2018
- Eichenholz, Jason M.; Russell, Austin K.; Campbell, Scott R.
- US Patent Document 9,958,545
Sensor integrated circuit load current monitoring circuitry and associated methods
patent, March 2021
- Forrest, Glenn A.; Kovalcik, Thomas J.; Zhang, Wei
- US Patent Document 10,948,537
Sensor system augmented with thermal sensor object confirmation
patent, October 2019
- Hicks, Richmond
- US Patent Document 10,445,599
Fitting points to a surface
patent, February 2020
- Maheshwari, Pranav; Maila, Tomi P.; Englard, Benjamin
- US Patent Document 10,551,485
Apparatus and method for correcting duty cycle of clock signal
patent, August 2011
- Shim, Seok-Bo
- US Patent Document 7,990,194
Active pixel sensors with variable threshold reset
patent, November 2012
- Williams, George
- US Patent Document 8,319,307
Time varying gain in an optical detector operating in a lidar system
patent, April 2020
- Gaalema, Stephen D.; Russell, Austin K.; LaChapelle, Joseph G.
- US Patent Document 10,627,495
Techniques for simultaneous determination of range and velocity with passive modulation
patent, August 2022
- Behzadi, Behsan; Rezk, Mina; Viswanatha, Kumar Bhargav
- US Patent Document 11,409,000
Actuator for dual-axis rotation micromirror
patent, July 2004
- Taylor, William P.; Brazzle, John D.; Bernstein, Jonathan J.
- US Patent Document 6,760,145
Object identification and labeling tool for training autonomous vehicle controllers
patent, January 2019
- Sachdeva, Prateek; Trofymov, Dmytro
- US Patent Document 10,175,697
Lidar detector having a plurality of time to digital converters integrated onto a detector chip
patent, April 2019
- LaChapelle, Joseph G.; Eichenholz, Jason M.; Gaalema, Stephen D.
- US Patent Document 10,267,918
Sensor integrated circuits and methods for safety critical applications
patent, April 2020
- Haas, David J.; Cesaretti, Juan Manuel; Taylor, William P.
- US Patent Document 10,636,285
Silicon-on-insulator active pixel sensors
patent, January 2007
- Williams, George
- US Patent Document 7,160,753
Sizing the field of view of a detector to improve operation of a lidar system
patent, May 2020
- Campbell, Scott R.; Martin, Lane A.; Weed, Matthew D.
- US Patent Document 10,641,874
Pulsed fiber laser
patent, July 2010
- Munroe, Michael J.; Alekel, Theodore; Dutton, David A.
- US Patent Document 7,764,719
Systems and methods for current sensing
patent, February 2021
- Bussing, Wade; Latham, Alexander; Milano, Shaun D.
- US Patent Document 10,908,190
Photovoltaic devices having nanoparticle dipoles for enhanced performance and methods for making same
patent, August 2011
- Williams, George; Schut, David M.; Stonas, Andreas
- US Patent Document 7,994,421
Delay looked loop circuit and method of measuring delay
patent, September 2022
- Austin, John; Iadanza, Joseph A.; Keyser, Fran
- US Patent Document 11,451,234
Active short-wave infrared four-dimensional camera
patent, June 2018
- LaChapelle, Joseph G.; Eichenholz, Jason M.
- US Patent Document 10,007,001
Phase locked loop with improved phase lock/unlock detection function
patent, January 2008
- Lee, Jae-Hoon
- US Patent Document 7,321,649
Low profile lidar scanner with polygon mirror
patent, February 2020
- Campbell, Scott R.; Eichenholz, Jason M.; Russell, Austin K.
- US Patent Document 10,571,567
Solid state laser system
patent, February 2019
- Munroe, Michael J.; Elliott, III, Edward Whitney; Williams, George
- US Patent Document 10,218,144
Controlling vehicle sensors based on dynamic objects
patent, April 2020
- Englard, Benjamin; Danziger, Eric C.; Russell, Austin K.
- US Patent Document 10,627,521
Apparatus, device and method for generating magnetic field gradient
patent, March 2006
- Bernstein, Jonathan J.; Taylor, William P.; Brazzle, John D.
- US Patent Document 7,015,780
Post-processing by lidar system guided by camera information
patent, November 2019
- Hicks, Richmond
- US Patent Document 10,491,885
Fiber laser with free-space components
patent, February 2019
- Villeneuve, Alain; Eichenholz, Jason M.; Lingvay, Laurance S.
- US Patent Document 10,211,592
Lidar receiver with multiple detectors for range-ambiguity mitigation
patent, September 2019
- Gaalema, Stephen D.; Drummer, Mark A.; Mielke, Stephen L.
- US Patent Document 10,401,480
Method and apparatus for pulsed harmonic ultraviolet lasers
patent, December 2010
- Alekel, Theodore; Dutton, David A.; Foster, David H.
- US Patent Document 7,852,549
Non-uniform beam power distribution for a laser operating in a vehicle
patent, September 2019
- Campbell, Scott R.; Weed, Matthew D.; Martin, Lane A.
- US Patent Document 10,401,481
Beam scanner for autonomous vehicles
patent, August 2019
- Albelo, Jeffrey; LaChapelle, Joseph G.
- US Patent Document 10,386,489
Optical amplifier with multi-wavelength pumping
patent, February 2019
- Lingvay, Laurance S.; Villeneuve, Alain; Eichenholz, Jason M.
- US Patent Document 10,211,593
Laser Rader Appartus
patent-application, July 2022
- Li, Cheng; Yu, Kunzhi; Huang, Xiaolin
- US Patent Application 17/425730; 20220236376
Autonomous vehicle technology for facilitating safe stopping according to separate paths
patent, November 2019
- Maila, Tomi P.; Ramezani, Vahid R.; Englard, Benjamin
- US Patent Document 10,481,605
Asynchronous LADAR and imaging array
patent, November 2017
- Williams, George; Lee, Adam
- US Patent Document 9,810,777
Object identification and labeling tool for training autonomous vehicle controllers
patent, January 2019
- Sachdeva, Prateek; Trofymov, Dmytro
- US Patent Document 10,169,680
Lidar System with AlInAsSb Avalanche Photodiode
patent-application, October 2019
- LaChapelle, Joseph G.
- US Patent Application 15/947308; 20190310368
Method and structure for nonlinear optics
patent, May 2014
- Alekel, Theodore
- US Patent Document 8,730,564
Dynamic vision sensor to direct lidar scanning
patent, July 2019
- Hicks, Richmond
- US Patent Document 10,345,447
Delay locked loop circuit and control method of the same
patent, May 2010
- Lee, Kwang Su
- US Patent Document 7,724,050
Q-switched laser for LIDAR system
patent, November 2017
- Welford, David; Jaspan, Martin A.; Eichenholz, Jason M.
- US Patent Document 9,810,775
Transceiver apparatus, method and applications
patent, July 2019
- McWhirter, John E.; Gabriele, Allen
- US Patent Document 10,338,199
Semiconductor memory apparatus with a delay locked loop circuit
patent, October 2009
- Yun, Won Joo; Lee, Hyun Woo
- US Patent Document 7,605,623
Adjustable pulse characteristics for ground detection in lidar systems
patent, April 2020
- Eichenholz, Jason M.
- US Patent Document 10,627,516
Method and device for measuring duration of a time interval
patent, July 2014
- Williams, George
- US Patent Document 8,766,682
Pulsed laser for lidar system
patent, November 2017
- Villeneuve, Alain; Eichenholz, Jason M.
- US Patent Document 9,812,838
Adjusting area of focus of vehicle sensors by controlling spatial distributions of scan lines
patent, November 2019
- Englard, Benjamin; Danziger, Eric C.; Russell, Austin K.
- US Patent Document 10,473,788
Magnetically actuated micro-electro-mechanical apparatus and method of manufacture
patent, January 2006
- Bernstein, Jonathan J.; Taylor, William P.; Kirkos, Gregory A.
- US Patent Document 6,989,921
Combining lidar and camera data
patent, June 2020
- LaChapelle, Joseph G.; Eichenholz, Jason M.
- US Patent Document 10,677,897
Fiber laser with free-space components
patent, June 2018
- Villeneuve, Alain
- US Patent Document 10,003,168
Scan patterns for lidar systems
patent, January 2018
- Campbell, Scott R.; Cleye, Rodger W.; Eichenholz, Jason M.
- US Patent Document 9,869,754
Active pixel sensors with variable threshold reset
patent, October 2014
- Williams, George
- US Patent Document 8,853,639
Early fusion of lidar return data with camera information
patent, April 2020
- Hicks, Richmond
- US Patent Document 10,627,512
Capacitor charging methods and apparatus
patent, August 2010
- Mangtani, Vijay; Lee, Nai-Chi; Tsai, Tseng-Nan
- US Patent Document 7,787,262
Lidar system with range-ambiguity mitigation
patent, February 2020
- Paulsen, David L.; Sentelle, Christopher Gary; Heylmun, Zachary
- US Patent Document 10,571,570
Discriminating photo counts and dark counts in an avalanche photodiode
patent, December 2017
- Williams, George; Huntington, Andrew S.
- US Patent Document 9,835,490
Controlling an autonomous vehicle using cost maps
patent, March 2020
- Englard, Benjamin; Gandhi, Gauri; Maheshwari, Pranav
- US Patent Document 10,606,270
Lidar system with distributed laser and multiple sensor heads
patent, March 2020
- Villeneuve, Alain; Eichenholz, Jason M.
- US Patent Document 10,591,600
Micro-electro-mechanical mirror devices having a high linear mirror fill factor
patent, August 2004
- Taylor, William P.; Carlen, Edwin; Mastrangelo, Carlos H.
- US Patent Document 6,778,728
Method and apparatus for producing arbitrary pulsetrains from a harmonic fiber laser
patent, February 2011
- Munroe, Michael J.
- US Patent Document 7,885,298
Signal isolator having magnetic signal latching
patent, December 2019
- Briano, Robert A.
- US Patent Document 10,498,384
Camera-gated lidar system
patent, March 2020
- Hicks, Richmond; Weed, Matthew D.; Eichenholz, Jason M.
- US Patent Document 10,591,601
Cross-talk mitigation using wavelength switching
patent, May 2020
- LaChapelle, Joseph G.
- US Patent Document 10,663,564
Lidar system with distributed laser and multiple sensor heads
patent, October 2017
- Villeneuve, Alain; Eichenholz, Jason M.
- US Patent Document 9,804,264
High Dynamic Range Receiver for a LiDAR Sensor
patent-application, May 2021
- Milkov, Mihail; LaFerve, Kyle; Musa, Osman
- US Patent Application 16/669600; 20210132229
Optical parametric oscillator for lidar system
patent, November 2017
- Welford, David; Jaspan, Martin A.; Eichenholz, Jason M.
- US Patent Document 9,810,786
Detecting distortion using other sensors
patent, July 2019
- Russell, Austin K.; Danzinger, Eric C.
- US Patent Document 10,345,437
Methods and apparatus for sensor diagnostics
patent, April 2022
- Milano, Shaun D.; El Bacha, Georges; Doogue, Michael C.
- US Patent Document 11,313,899
Streak image sensor and method of operating
patent, June 2012
- Williams, George
- US Patent Document 8,207,484
Processing point clouds of vehicle sensors having variable scan line distributions using two-dimensional interpolation and distance thresholding
patent, July 2019
- Englard, Benjamin; Danziger, Eric C.
- US Patent Document 10,338,223
Reconfigurable asynchronous readout array
patent, June 2017
- Williams, George; Lee, Adam
- US Patent Document 9,693,035
Magnetically actuated microelectromechanical devices and method of manufacture
patent, May 2005
- Taylor, William P.; Bernstein, Jonathan J.
- US Patent Document 6,894,823
Methods and apparatus for sensor diagnostics
patent, November 2019
- Milano, Shaun D.; El Bacha, Georges; Doogue, Michael C.
- US Patent Document 10,488,458
Method and structure for nonlinear optics
patent, March 2009
- Alekel, Theodore
- US Patent Document 7,504,053
Self-Raman laser for lidar system
patent, February 2018
- Welford, David; Jaspan, Martin A.; Eichenholz, Jason M.
- US Patent Document 9,905,992
Proximity detector having a sequential flow state machine
patent, August 2007
- Forrest, Glenn A.; Bailey, James M.; Lamar, Washington
- US Patent Document 7,253,614
Lidar system
patent, July 2018
- Eichenholz, Jason M.; Russell, Austin K.; Campbell, Scott R.
- US Patent Document 10,012,732
Concurrent scan of multiple pixels in a lidar system equipped with a polygon mirror
patent, June 2019
- Campbell, Scott R.; Eichenholz, Jason M.; Weed, Matthew D.
- US Patent Document 10,310,058
Er,Yb:YAB laser system
patent, July 2016
- Nijjar, Anmol; LaChapelle, Joe; Williams, George
- US Patent Document 9,397,469
Method and structure for non-linear optics
patent, December 2013
- Alekel, Theodore
- US Patent Document 8,597,544
Dynamically varying laser output in a vehicle in view of weather conditions
patent, April 2019
- LaChapelle, Joseph G.; Weed, Matthew D.; Campbell, Scott R.
- US Patent Document 10,254,388
Multi-beam lidar system with polygon mirror
patent, June 2019
- Engberg, Jr., John P.; Engberg, Christopher A.; Hughes, John G.
- US Patent Document 10,324,170
Event tracking imager
patent, January 2019
- Rhee, Jehyuk; Lee, Adam; Williams, George
- US Patent Document 10,175,345
Lidar system
patent, February 2020
- Eichenholz, Jason M.; Russell, Austin K.; Campbell, Scott R.
- US Patent Document 10,557,940
LiDAR Homodyne Transceiver Using Pulse-Position Modulation
patent-application, April 2021
- Puglia, Kenneth; de Mersseman, Bernard
- US Patent Application 16/665495; 20210124050
Detection of passing magnetic articles with a peak-to-peak percentage threshold detector having a forcing circuit and automatic gain control
patent, October 2001
- Towne, Jay M.; Vig, Ravi; Scheller, P. Karl
- US Patent Document 6,297,627
Method and apparatus for increasing fiber laser output power
patent, August 2010
- Munroe, Michael J.; Foster, David H.; LaChapelle, Joseph G.
- US Patent Document 7,782,911
Lidar system with optical trigger
patent, July 2019
- Drummer, Mark A.; Campbell, Scott R.; Villeneuve, Alain
- US Patent Document 10,340,651
Avalanche photodiode structure
patent, October 2008
- Huntington, Andrew S.
- US Patent Document 7,432,537
Phase determination circuit and delay locked loop circuit using the same
patent, December 2014
- Baek, Seung Geun; Choi, Hoon
- US Patent Document 8,917,128
Asynchronous readout array
patent, March 2017
- Lee, Adam; Rhee, Jehyuk; Jensen, Brent R.
- US Patent Document 9,591,238
Clamped avalanche photodiode
patent, February 2019
- Dhulla, Vinit; Miller, Drake; Forbes, Leonard
- US Patent Document 10,217,889
Monitoring rotation of a mirror in a lidar system
patent, October 2019
- Hughes, John G.; Ventola, Nicholas; Hughes, Sean P.
- US Patent Document 10,451,716
Cross-talk mitigation using wavelength switching
patent, June 2018
- LaChapelle, Joseph G.
- US Patent Document 9,989,629
Controlling pulse timing to compensate for motor dynamics
patent, October 2018
- Weed, Matthew D.; Campbell, Scott R.; Martin, Lane A.
- US Patent Document 10,088,559
Doped multiplier avalanche photodiode
patent, December 2017
- Huntington, Andrew S.
- US Patent Document 9,847,441
Method for dynamically controlling laser power
patent, October 2018
- Russell, Austin K.; Eichenholz, Jason M.; Lingvay, Laurance S.
- US Patent Document 10,114,111
Reducing audio noise in a lidar scanner with a polygon mirror
patent, June 2019
- McWhirter, John E.; Campbell, Scott R.
- US Patent Document 10,324,185
Circuits and methods for regulator diagnostics
patent, April 2020
- Kravljaca, Vladimir; Chaware, Virag V.; Lapomardo, Jesse
- US Patent Document 10,634,735
Method and apparatus for a hybrid mode-locked fiber laser
patent, January 2014
- Munroe, Michael J.; Dutton, David A.; LaChapelle, Joseph G.
- US Patent Document 8,630,320
Scan sensors on the exterior surfaces of a vehicle
patent, December 2019
- Eichenholz, Jason M.
- US Patent Document 10,502,831
Pulsed laser for lidar system
patent, December 2019
- Villeneuve, Alain; Eichenholz, Jason M.
- US Patent Document 10,520,602
Reducing the number of false detections in a lidar system
patent, May 2019
- LaChapelle, Joseph G.; Eichenholz, Jason M.; Lingvay, Laurance S.
- US Patent Document 10,295,668
Composite quantum-dot materials for photonic detectors
patent, April 2018
- Williams, George; Huntington, Andrew S.
- US Patent Document 9,941,433
Manufacturing a balanced polygon mirror
patent, May 2020
- McWhirter, John E.
- US Patent Document 10,663,585
Protecting detector in a lidar system using off-axis illumination
patent, June 2020
- Campbell, Scott R.
- US Patent Document 10,684,360
Adaptive pulse rate in a lidar system
patent, February 2019
- Russell, Austin K.; Weed, Matthew D.; McGregor, Liam J.
- US Patent Document 10,209,359
Signal isolator with three state data transmission
patent, September 2021
- Briano, Robert A.; Shahnani, Pedram Sotoodeh; Voisine, Cory
- US Patent Document 11,115,244
Detection of passing magnetic articles with a peak referenced threshold detector
patent, July 2000
- Vig, Ravi; Towne, Jay M.; Moody, Kristann L.
- US Patent Document 6,091,239
Proximity detector
patent, February 2004
- Stauth, Jason; Scheller, P. Karl; Forrest, Glenn A.
- US Patent Document 6,693,419
Detecting distortion using known shapes
patent, June 2020
- Russell, Austin K.; Danziger, Eric C.
- US Patent Document 10,677,900
High dynamic range image sensor
patent, December 2019
- Lee, Adam; Williams, George; Rhee, Jehyuk
- US Patent Document 10,523,884
Image compensation for sensor array having bad pixels
patent, February 2022
- Huntington, Andrew S.; Taylor, William P.
- US Patent Document 11,252,359
Methods and apparatus for supply voltage transient protection for maintaining a state of a sensor output signal
patent, December 2016
- Eagen, Jeff; Fernandez, Devon; Scheller, P. Karl
- US Patent Document 9,520,871
Method and system using phase modulation to reduce spectral broadening
patent, January 2014
- Munroe, Michael J.
- US Patent Document 8,630,036
Buck-boost converter control circuits and techniques
patent, April 2017
- Sun, Xiaowu; Alnahas, Bassem
- US Patent Document 9,621,041
Lidar system
patent, January 2018
- Eichenholz, Jason M.; Russell, Austin K.; Campbell, Scott R.
- US Patent Document 9,874,635
Composite quantum-dot materials for photonics detectors
patent, October 2016
- Williams, George; Novet, Thomas; Schut, David M.
- US Patent Document 9,466,745
Lidar system with improved signal-to-noise ratio in the presence of solar background noise
patent, February 2020
- Campbell, Scott R.; Eichenholz, Jason M.; Weed, Matthew D.
- US Patent Document 10,557,939
Three-dimensional imager and projection device
patent, June 2014
- Russell, Austin K.
- US Patent Document 8,760,499
Avalanche photodiode receiver
patent, February 2016
- Williams, George; Huntington, Andrew S.
- US Patent Document 9,269,845
Determining distortion by tracking objects across successive frames
patent, January 2020
- Danziger, Eric C.; Russell, Austin K.
- US Patent Document 10,539,665
Compensating for the vibration of the vehicle
patent, April 2019
- McWhirter, John E.; Eichenholz, Jason M.; Russell, Austin K.
- US Patent Document 10,254,762
Selective control of uplink transmission power based on roaming status
patent, September 2016
- Singh, Jasinder P.; Narava, Eshwar; Oroskar, Siddharth S.
- US Patent Document 9,451,554
Controlling vehicle sensors based on road configuration
patent, December 2019
- Englard, Benjamin; Danziger, Eric C.; Augenbraun, Joseph E.
- US Patent Document 10,509,127
Delay locked loop circuit and semiconductor memory device having the same
patent, November 2021
- Kim, Hwapyong; Choi, Hundae
- US Patent Document 11,177,814
Low power ADC for high dynamic range integrating pixel arrays
patent, November 2015
- Gaalema, Stephen D.; Bahn, William; Dobyns, David
- US Patent Document 9,197,233
Inks for 3D printing gradient refractive index (GRIN) optical components
patent, September 2016
- Schut, David M.; Dupuy, Charles G.; Harmon, John Paul
- US Patent Document 9,447,299
Lidar system
patent, January 2018
- Eichenholz, Jason M.; Russell, Austin K.; Campbell, Scott R.
- US Patent Document 9,857,468
Efficient signal path diagnostics for safety devices
patent, April 2020
- Cook, Aaron; Chaware, Virag V.; Petrie, Craig S.
- US Patent Document 10,613,158
Discriminating photo counts and dark counts in an avalanche photodiode output
patent, September 2015
- Williams, George; Huntington, Andrew S.
- US Patent Document 9,121,762
Optical resolution in front of a vehicle
patent, January 2019
- Curatu, George C.
- US Patent Document 10,191,155
Magnetic angle and rotation speed sensor with continuous and discontinuous modes of operation based on rotation speed of a target object
patent, May 2014
- Donovan, Mark J.; Metivier, Ryan; Doogue, Michael C.
- US Patent Document 8,729,890
Lidar system
patent, November 2017
- Eichenholz, Jason M.; Russell, Austin K.; Campbell, Scott R.
- US Patent Document 9,823,353
Lidar receiver calibration
patent, March 2019
- LaChapelle, Joseph G.; Cleye, Rodger W.; Campbell, Scott R.
- US Patent Document 10,241,198
Solid-state laser for lidar system
patent, September 2019
- Welford, David; Jaspan, Martin A.; Eichenholz, Jason M.
- US Patent Document 10,418,776
Object identification and labeling tool for training autonomous vehicle controllers
patent, January 2020
- Sachdeva, Prateek; Trofymov, Dmytro
- US Patent Document 10,535,191
Methods and apparatus for error detection in a magnetic field sensor
patent, December 2018
- Snyder, Steven E.; McConnell, Craig; Wells, Peter G.
- US Patent Document 10,156,461
Lidar system with a polygon mirror and a noise-reducing feature
patent, March 2020
- Hughes, John G.; Hughes, Sean P.
- US Patent Document 10,578,720
Lidar system with improved scanning speed for high-resolution depth mapping
patent, February 2018
- Campbell, Scott R.; Eichenholz, Jason M.; Martin, Lane A.
- US Patent Document 9,897,687
DC-DC converter having feedforward for enhanced output voltage regulation
patent, May 2019
- Raval, Pranav; Mangtani, Vijay
- US Patent Document 10,291,125