Luis C Dussan

US Patent:

20220317247, Oct 6, 2022

Filed:

Nov 5, 2021

Appl. No.:

17/520159

Inventors:

- Dublin CA, US
Joel Benscoter - Dublin CA, US
Luis Dussan - Dublin CA, US
Allan Steinhardt - Dublin CA, US
Philippe Feru - Dublin CA, US
Igor Polishchuk - Dublin CA, US
Alex Liang - Dublin CA, US

International Classification:

G01S 7/484
G01S 7/481
G01S 7/4863

Abstract:

A lidar system includes a lidar transmitter and a control circuit. The lidar transmitter can controllably fire a plurality of laser pulse shots into a field of view, and the control circuit can (1) detect a target based on a return from a laser pulse shot fired at a first shot angle, and (2) in response to the detected target, (i) schedule a pulse burst to be fired at the target, wherein the pulse burst comprises a second laser pulse shot to be fired at a second shot angle and a third laser pulse shot to be fired at a third shot angle, wherein the first shot angle is between the second and third shot angles, and (ii) control the lidar transmitter to fire the scheduled pulse burst.

US Patent:

20220317248, Oct 6, 2022

Filed:

Nov 5, 2021

Appl. No.:

17/520189

Inventors:

- Dublin CA, US
Joel Benscoter - Dublin CA, US
Luis Dussan - Dublin CA, US
Allan Steinhardt - Dublin CA, US
Philippe Feru - Dublin CA, US
Igor Polishchuk - Dublin CA, US
Alex Liang - Dublin CA, US

International Classification:

G01S 7/484
G01S 7/481
G01S 17/931
G01S 17/89

Abstract:

A lidar system comprises an optical amplification laser source, a mirror, and a control circuit. The optical amplification laser source can generate laser pulses for transmission as laser pulses shots into a field of view, the optical amplification laser source comprising a seed laser, a pump laser, and an optical amplifier. The mirror can be is scannable to control where the laser pulse shots are fired into the field of view, and the control circuit can control the seed laser to adjust its seed energy to control energy levels for a first laser pulse shot and a second laser pulse shot within a pulse burst to be transmitted from the optical amplification laser source via the mirror.

US Patent:

20220317249, Oct 6, 2022

Filed:

Nov 5, 2021

Appl. No.:

17/520213

Inventors:

- Dublin CA, US
Joel Benscoter - Dublin CA, US
Luis Dussan - Dublin CA, US
Allan Steinhardt - Dublin CA, US
Philippe Feru - Dublin CA, US
Igor Polishchuk - Dublin CA, US
Alex Liang - Dublin CA, US

International Classification:

G01S 7/484
G01S 17/42
G01S 7/48
G01S 7/481

Abstract:

A lidar system comprises (1) a lidar transmitter that switches from a baseline scan pattern to a pulse burst mode in response to a detection of a target in a field of view for the lidar transmitter, wherein the lidar transmitter transmits a pulse burst toward the target when in the pulse burst mode, and (2) a lidar receiver that refines an angle to the target based on returns from the pulse burst.

US Patent:

20220317255, Oct 6, 2022

Filed:

Sep 30, 2021

Appl. No.:

17/490280

Inventors:

- Dublin CA, US
Allan Steinhardt - Dublin CA, US
Luis Dussan - Dublin CA, US
Joel Benscoter - Dublin CA, US
Alex Liang - Dublin CA, US
Philippe Feru - Dublin CA, US
Igor Polishchuk - Dublin CA, US

International Classification:

G01S 7/481
G01S 7/484
G01S 17/10
G01S 17/931
B60R 1/12

Abstract:

A lidar system having a lidar transmitter and lidar receiver that are in a bistatic arrangement with each other can be deployed in a climate-controlled compartment of a vehicle to reduce the exposure of the lidar system to harsher elements so it can operate in more advantageous environments with regards to factors such as temperature, moisture, etc. In an example embodiment, the bistatic lidar system can be connected to or incorporated within a rear view mirror assembly of a vehicle.

US Patent:

20220308168, Sep 29, 2022

Filed:

Sep 23, 2021

Appl. No.:

17/482820

Inventors:

- Dublin CA, US
Luis Dussan - Dublin CA, US
Joel Benscoter - Dublin CA, US
IL WOONG Jung - Dublin CA, US
Alex Liang - Dublin CA, US
Igor Polishchuk - Dublin CA, US
Allan Steinhardt - Dublin CA, US

International Classification:

G01S 7/484
G01S 7/481
G01S 17/89

Abstract:

A lidar system that includes a laser source and transmits laser pulses produced by the laser source toward range points in a field of view via a mirror that scans through a plurality of scan angles can use (1) a laser energy model to model the available energy in the laser source over time and (2) a mirror motion model to model motion of the mirror over time. The mirror can exhibit a variable scan amplitude, and a control circuit can then evaluate whether benefits such as a shorter completion time for firing laser pulse shots at a list of range points can be achieved by changing the mirror's scan amplitude. When making such decisions, the control circuit can take into account a settle time for the variable amplitude mirror that arises from changing the mirror's scan amplitude.

US Patent:

20220308169, Sep 29, 2022

Filed:

Sep 23, 2021

Appl. No.:

17/482947

Inventors:

- Dublin CA, US
Luis Dussan - Dublin CA, US
Joel Benscoter - Dublin CA, US
Alex Liang - Dublin CA, US
Igor Polishchuk - Dublin CA, US
Allan Steinhardt - Dublin CA, US

International Classification:

G01S 7/484
G01S 7/481
G01S 17/931
G01S 17/89

Abstract:

A lidar system that includes a laser source can be controlled to fire laser pulse shots from the laser source at a variable rate of firing those laser pulse shots. The fired laser pulse shots can include scheduled laser pulse shots that are targeted at range points in the field of view. The fired laser pulse shots can also include marker shots that bleed energy out of the laser source in order to avoid reaching a threshold for available energy in the laser source and/or regulate energy amounts for the targeted laser pulse shots. A laser energy model that models how much energy is available from the laser source for laser pulse shots over time can be used to model future available energies for the laser source and determine whether any marker shots should be fired.

US Patent:

20220308170, Sep 29, 2022

Filed:

Sep 23, 2021

Appl. No.:

17/482983

Inventors:

- Dublin CA, US
Luis Dussan - Dublin CA, US
Joel Benscoter - Dublin CA, US
James Jung - Dublin CA, US
Alex Liang - Dublin CA, US
Igor Polishchuk - Dublin CA, US
Allan Steinhardt - Dublin CA, US

International Classification:

G01S 7/484
G01S 17/42

Abstract:

A lidar system that includes a laser source can be controlled to schedule the firing of laser pulse shots at range points in a field of view. As part of this scheduling, the system can prioritize which elevations will be targeted with shots before other elevations based on defined criteria. Examples of such criteria can include prioritizing elevations corresponding to a horizon, prioritizing elevations which contain objects of interest (e.g., nearby objects, fast moving objects, objects heading toward the lidar system, etc).

US Patent:

20220308171, Sep 29, 2022

Filed:

Nov 5, 2021

Appl. No.:

17/520136

Inventors:

- Dublin CA, US
Joel Benscoter - Dublin CA, US
Luis Dussan - Dublin CA, US
Allan Steinhardt - Dublin CA, US
Philippe Feru - Dublin CA, US
Igor Polishchuk - Dublin CA, US
Alex Liang - Dublin CA, US

International Classification:

G01S 7/484
G01S 17/42
G01S 7/481

Abstract:

A lidar system can include a lidar transmitter and a lidar receiver, where the lidar transmitter controllably transmits a pulse burst toward a target in a field of view and where the lidar receiver resolves an angle to the target based on returns from the pulse burst. The pulse burst can include a first pulse fired at a first shot angle and a second pulse fired at a second shot angle.