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1
US2021103039A1
MOUNTING APPARATUSES FOR OPTICAL COMPONENTS IN A SCANNING LIDAR SYSTEM
Publication/Patent Number: US2021103039A1 Publication Date: 2021-04-08 Application Number: 17/038,537 Filing Date: 2020-09-30 Inventor: Pei, Jun   Mccord, Mark   Rejaly, Daryoosh   Assignee: Cepton Technologies, Inc.   IPC: G01S7/481 Abstract: A scanning lidar system includes a first lens having a first lens center and characterized by a first optical axis and a first surface of best focus, a second lens having a second lens center and characterized by a second optical axis, a platform separated from the first lens and the second lens along the first optical axis, and an array of laser sources mounted on the platform. Each laser source of the array of laser sources has an emission surface lying substantially at the first surface of best focus of the first lens and positioned at a respective laser position. The scanning lidar system further includes an array of photodetectors mounted on the platform. Each photodetector of the array of photodetectors is positioned at a respective photodetector position that is optically conjugate with a respective laser position of a corresponding laser source.
2
EP3842831A1
SCANNING LIDAR SYSTEM
Publication/Patent Number: EP3842831A1 Publication Date: 2021-06-30 Application Number: 21156959.5 Filing Date: 2017-12-14 Inventor: Pei, Jun   Mccord, Mark   Ye, Jun   Cui, Yupeng   Han, Liqun   Rejaly, Daryoosh   Assignee: Cepton Technologies, Inc.   IPC: G01S7/481 Abstract: A scanning lidar system (700; 900) comprises an external frame (710); an internal frame (720) attached to the external frame (710) by vibration-isolation mounts (742, 744); and an electro-optic assembly (730) movably attached to the internal frame (720) and configured to be translated with respect to the internal frame (720) during scanning operation of the scanning lidar system (700; 900).
3
US10921450B2
Ladar system and method with frequency domain shuttering
Publication/Patent Number: US10921450B2 Publication Date: 2021-02-16 Application Number: 16/407,570 Filing Date: 2019-05-09 Inventor: Dussan, Luis Carlos   Steinhardt, Allan   Greene, Jordan Spencer   Wang, Allen Chi-luen   Vyas, Nitin   Rejaly, Daryoosh   Assignee: AEYE, INC.   IPC: G01S17/00 Abstract: A ladar system and related method are disclosed where a ladar transmitter transmits ladar pulses toward a plurality of range points, and a ladar receiver receives ladar returns from the range points, wherein the ladar receiver comprises a photo receiver. A sensor can be used to sense background light levels, and a control circuit can (1) measures the sensed background light levels and (2) provide frequency domain shuttering with respect to the photo receiver based on the measured background light levels.
4
US10845466B2
Mounting apparatuses for optical components in a scanning lidar system
Publication/Patent Number: US10845466B2 Publication Date: 2020-11-24 Application Number: 15/841,125 Filing Date: 2017-12-13 Inventor: Pei, Jun   Mccord, Mark   Rejaly, Daryoosh   Assignee: Cepton Technologies, Inc.   IPC: G01S7/481 Abstract: A scanning lidar system includes a first lens having a first lens center and characterized by a first optical axis and a first surface of best focus, a second lens having a second lens center and characterized by a second optical axis, a platform separated from the first lens and the second lens along the first optical axis, and an array of laser sources mounted on the platform. Each laser source of the array of laser sources has an emission surface lying substantially at the first surface of best focus of the first lens and positioned at a respective laser position. The scanning lidar system further includes an array of photodetectors mounted on the platform. Each photodetector of the array of photodetectors is positioned at a respective photodetector position that is optically conjugate with a respective laser position of a corresponding laser source.
5
EP3155741B1
A MODULO CHANNEL ASSIGNMENT TECHNIQUE IN OPTICAL POINT TO MULTIPOINT NETWORKS TO PREVENT OPTICAL BEAT INTERFERENCE
Publication/Patent Number: EP3155741B1 Publication Date: 2020-01-01 Application Number: 15747873.6 Filing Date: 2015-07-16 Inventor: Rejaly, Daryoosh   Gadkari, Ketan   Morbi, Zulfikar   Mysore, Sudhesh   Hopkins, Steven   Assignee: Aurora Networks, Inc.   IPC: H04J14/02
6
US2020341147A1
Ladar System and Method with Cross-Receiver
Publication/Patent Number: US2020341147A1 Publication Date: 2020-10-29 Application Number: 16/407,626 Filing Date: 2019-05-09 Inventor: Dussan, Luis Carlos   Steinhardt, Allan   Greene, Jordan Spencer   Wang, Allen Chi-luen   Vyas, Nitin   Rejaly, Daryoosh   Assignee: AEYE, Inc.   IPC: G01S17/10 Abstract: A ladar system and related method are disclosed where the system includes a ladar transmitter and a ladar receiver. The ladar transmitter transmits ladar pulses into a field of view, and the ladar receiver receives ladar pulse returns from objects in the field of view. The ladar receiver comprises a cross-receiver, the cross-receiver comprising a first 1D array of photodetector cells and a second 1D array of photodetector cells that are oriented differently relative to each other.
7
US10641897B1
Ladar system and method with adaptive pulse duration
Publication/Patent Number: US10641897B1 Publication Date: 2020-05-05 Application Number: 16/407,544 Filing Date: 2019-05-09 Inventor: Dussan, Luis Carlos   Steinhardt, Allan   Greene, Jordan Spencer   Wang, Allen Chi-luen   Vyas, Nitin   Rejaly, Daryoosh   Assignee: AEYE, INC.   IPC: G01S17/26 Abstract: A ladar system and related method are disclosed where the ladar system includes a sensor that senses background light levels. A control circuit of the ladar system (1) measures the sensed background light levels and (2) controllably adjusts a pulse duration for a new ladar pulse based on the measured background light levels. A ladar transmitter can then transmit the new ladar pulse, wherein the new ladar pulse has the adjusted pulse duration. In an example embodiment, this technique for adaptive pulse duration can be employed in the ladar system where the ladar transmitter and ladar receiver are arranged in a bistatic architecture.
8
US10656272B1
Ladar system and method with polarized receivers
Publication/Patent Number: US10656272B1 Publication Date: 2020-05-19 Application Number: 16/407,589 Filing Date: 2019-05-09 Inventor: Dussan, Luis Carlos   Steinhardt, Allan   Greene, Jordan Spencer   Wang, Allen Chi-luen   Vyas, Nitin   Rejaly, Daryoosh   Assignee: AEYE, INC.   IPC: G01S17/10 Abstract: A ladar system and related method are disclosed where the ladar system comprises first and second receivers. The first receiver receives a ladar return from a ladar pulse with a known transmit polarization. The second receiver receives the ladar return from the ladar pulse with the known transmit polarization. The ladar system also includes a control circuit that (1) measures incident polarizations at the first and second receivers with respect to the received ladar return and (2) separates a retro-reflective portion of the received ladar return from a non-retro-reflective portion of the received ladar return based on the measured incident polarization and the known transmit polarization.
9
US2020341146A1
Ladar System and Method with Frequency Domain Shuttering
Publication/Patent Number: US2020341146A1 Publication Date: 2020-10-29 Application Number: 16/407,570 Filing Date: 2019-05-09 Inventor: Dussan, Luis Carlos   Steinhardt, Allan   Greene, Jordan Spencer   Wang, Allen Chi-luen   Vyas, Nitin   Rejaly, Daryoosh   Assignee: AEYE, Inc.   IPC: G01S17/10 Abstract: A ladar system and related method are disclosed where a ladar transmitter transmits ladar pulses toward a plurality of range points, and a ladar receiver receives ladar returns from the range points, wherein the ladar receiver comprises a photo receiver. A sensor can be used to sense background light levels, and a control circuit can (1) measures the sensed background light levels and (2) provide frequency domain shuttering with respect to the photo receiver based on the measured background light levels
10
US10476601B2
Dynamic wavelength management using bi-directional communication for the prevention of optical beat interference
Publication/Patent Number: US10476601B2 Publication Date: 2019-11-12 Application Number: 15/430,001 Filing Date: 2017-02-10 Inventor: Gadkari, Ketan   Morbi, Zulfikar   Rejaly, Daryoosh   Hopkins, Steven   Assignee: ARRIS Solutions, Inc.   IPC: H04J14/00 Abstract: Preventing optical beat interference includes dynamically managing an adjustable optical transmitter wavelength of each of a plurality of customer premises equipment, wherein each of the plurality of customer premises equipment is in bidirectional communication with a customer premises equipment controller. A bidirectional communication system includes a customer premises equipment controller; and a plurality of customer premises equipment coupled to the customer premises equipment controller, each of the plurality of customer premises equipment having an adjustable optical transmitter wavelength, wherein each of the plurality of customer premises equipment is in bidirectional communication with the customer premises equipment controller to prevent optical beat interference by dynamically managing the adjustable optical transmitter wavelength of each of the plurality of customer premises equipment.
11
EP3008836B1
DYNAMIC WAVELENGTH MANAGEMENT USING BI-DIRECTIONAL COMMUNICATION FOR THE PREVENTION OF OPTICAL BEAT INTERFERENCE
Publication/Patent Number: EP3008836B1 Publication Date: 2019-07-24 Application Number: 14747427.4 Filing Date: 2014-05-15 Inventor: Gadkari, Ketan   Morbi, Zulfikar   Rejaly, Daryoosh   Hopkins, Steven   Assignee: Aurora Networks, Inc.   IPC: H04B10/50
12
EP3559595A1
SCANNING APPARATUSES AND METHODS FOR A LIDAR SYSTEM
Publication/Patent Number: EP3559595A1 Publication Date: 2019-10-30 Application Number: 17884662.2 Filing Date: 2017-12-14 Inventor: Pei, Jun   Mccord, Mark   Ye, Jun   Cui, Yupeng   Han, Liqun   Rejaly, Daryoosh   Assignee: Cepton Technologies, Inc.   IPC: G01C3/08
13
US2018180722A1
MOUNTING APPARATUSES FOR OPTICAL COMPONENTS IN A SCANNING LIDAR SYSTEM
Publication/Patent Number: US2018180722A1 Publication Date: 2018-06-28 Application Number: 15/841,125 Filing Date: 2017-12-13 Inventor: Rejaly, Daryoosh   Mccord, Mark   Pei, Jun   Assignee: Cepton Tecnhologies, Inc.   IPC: G01S17/10 Abstract: A scanning lidar system includes a first lens having a first lens center and characterized by a first optical axis and a first surface of best focus, a second lens having a second lens center and characterized by a second optical axis, a platform separated from the first lens and the second lens along the first optical axis, and an array of laser sources mounted on the platform. Each laser source of the array of laser sources has an emission surface lying substantially at the first surface of best focus of the first lens and positioned at a respective laser position. The scanning lidar system further includes an array of photodetectors mounted on the platform. Each photodetector of the array of photodetectors is positioned at a respective photodetector position that is optically conjugate with a respective laser position of a corresponding laser source.
14
WO2018118645A1
SCANNING APPARATUSES AND METHODS FOR A LIDAR SYSTEM
Publication/Patent Number: WO2018118645A1 Publication Date: 2018-06-28 Application Number: 2017066419 Filing Date: 2017-12-14 Inventor: Mccord, Mark   Ye, Jun   Pei, Jun   Han, Liqun   Rejaly, Daryoosh   Cui, Yupeng   Assignee: CEPTON TECHNOLOGIES, INC.   IPC: G01C3/08 Abstract: A scanning lidar system includes a fixed frame, a first platform flexibly attached to the fixed frame, a lens assembly including a first lens and a second lens mounted on the first platform, a second platform flexible attached to the fixed frame, an electro-optic assembly including a first laser source and a first photodetector mounted on the second platform, a drive mechanism mechanically coupled to the first platform and the second platform and configured to translate the first platform and the second platform with respect to the fixed frame, and a controller coupled to the drive mechanism and configured to translate the first platform to a plurality of first positions through the drive mechanism and translate the second platform to a plurality of second positions through the drive mechanism such that a motion of the second platform is substantially opposite to a motion of the first platform.
15
US9577767B2
Dynamic wavelength management using bi-directional communication for the prevention of optical beat interference
Publication/Patent Number: US9577767B2 Publication Date: 2017-02-21 Application Number: 14/278,041 Filing Date: 2014-05-15 Inventor: Gadkari, Ketan   Morbi, Zulfikar   Rejaly, Daryoosh   Hopkins, Steven   Assignee: Aurora Networks, Inc.   IPC: H04J14/00 Abstract: Preventing optical beat interference includes dynamically managing an adjustable optical transmitter wavelength of each of a plurality of customer premises equipment, wherein each of the plurality of customer premises equipment is in bidirectional communication with a customer premises equipment controller. A bidirectional communication system includes a customer premises equipment controller; and a plurality of customer premises equipment coupled to the customer premises equipment controller, each of the plurality of customer premises equipment having an adjustable optical transmitter wavelength, wherein each of the plurality of customer premises equipment is in bidirectional communication with the customer premises equipment controller to prevent optical beat interference by dynamically managing the adjustable optical transmitter wavelength of each of the plurality of customer premises equipment.
16
US2017155453A1
Dynamic Wavelength Management using Bi-Directional Communication for the Prevention of Optical Beat Interference
Publication/Patent Number: US2017155453A1 Publication Date: 2017-06-01 Application Number: 15/430,001 Filing Date: 2017-02-10 Inventor: Gadkari, Ketan   Morbi, Zulfikar   Rejaly, Daryoosh   Hopkins, Steven   Assignee: ARRIS Enterprises LLC   IPC: H04B10/572 Abstract: Preventing optical beat interference includes dynamically managing an adjustable optical transmitter wavelength of each of a plurality of customer premises equipment, wherein each of the plurality of customer premises equipment is in bidirectional communication with a customer premises equipment controller. A bidirectional communication system includes a customer premises equipment controller; and a plurality of customer premises equipment coupled to the customer premises equipment controller, each of the plurality of customer premises equipment having an adjustable optical transmitter wavelength, wherein each of the plurality of customer premises equipment is in bidirectional communication with the customer premises equipment controller to prevent optical beat interference by dynamically managing the adjustable optical transmitter wavelength of each of the plurality of customer premises equipment.
17
EP3155741A1
A MODULO CHANNEL ASSIGNMENT TECHNIQUE IN OPTICAL POINT TO MULTIPOINT NETWORKS TO PREVENT OPTICAL BEAT INTERFERENCE
Publication/Patent Number: EP3155741A1 Publication Date: 2017-04-19 Application Number: 15747873.6 Filing Date: 2015-07-16 Inventor: Rejaly, Daryoosh   Gadkari, Ketan   Morbi, Zulfikar   Mysore, Sudhesh   Hopkins, Steven   Assignee: Aurora Networks, Inc.   IPC: H04J14/02
18
EP3008836A1
DYNAMIC WAVELENGTH MANAGEMENT USING BI-DIRECTIONAL COMMUNICATION FOR THE PREVENTION OF OPTICAL BEAT INTERFERENCE
Publication/Patent Number: EP3008836A1 Publication Date: 2016-04-20 Application Number: 14747427.4 Filing Date: 2014-05-15 Inventor: Gadkari, Ketan   Morbi, Zulfikar   Rejaly, Daryoosh   Hopkins, Steven   Assignee: Aurora Networks, Inc.   IPC: H04B10/50
19
US9356726B2
Modulo channel assignment technique in optical point to multipoint networks to prevent optical beat interference
Publication/Patent Number: US9356726B2 Publication Date: 2016-05-31 Application Number: 14/686,023 Filing Date: 2015-04-14 Inventor: Rejaly, Daryoosh   Gadkari, Ketan   Morbi, Zulfikar   Mysore, Sudhesh   Hopkins, Steve   Assignee: Aurora Networks, Inc.   IPC: H04J14/00 Abstract: Configuring an optical point to multipoint communication network includes assigning a channel number Ci by modular arithmetic to each of a plurality of N access points, each of the plurality of N access points i) including a laser and ii) coupled to a hub having a shared optical receiver; and tuning the laser located in each of the plurality of N access points to a wavelength λui that is one of a set of M wavelengths as a function of the channel number assigned to the access point in which the laser is located, a channel spacing Δλ and an intrinsic wavelength λuin of the laser to prevent optical beat interference at the shared optical receiver.
20
US2016013881A1
MODULO CHANNEL ASSIGNMENT TECHNIQUE IN OPTICAL POINT TO MULTIPOINT NETWORKS TO PREVENT OPTICAL BEAT INTERFERENCE
Publication/Patent Number: US2016013881A1 Publication Date: 2016-01-14 Application Number: 14/686,023 Filing Date: 2015-04-14 Inventor: Rejaly, Daryoosh   Gadkari, Ketan   Morbi, Zulfikar   Mysore, Sudhesh   Hopkins, Steve   Assignee: Aurora Networks, Inc.   IPC: H04J14/02 Abstract: Configuring an optical point to multipoint communication network includes assigning a channel number Ci by modular arithmetic to each of a plurality of N access points, each of the plurality of N access points i) including a laser and ii) coupled to a hub having a shared optical receiver; and tuning the laser located in each of the plurality of N access points to a wavelength λui that is one of a set of M wavelengths as a function of the channel number assigned to the access point in which the laser is located, a channel spacing Δλ and an intrinsic wavelength λuin of the laser to prevent optical beat interference at the shared optical receiver.
Total 2 pages