Seagate Technology Incorporated

Luminar Technologies, Inc.

Other

Kevin Arthur Gomez

Ryan James Goss

Mark A Gaertner

Dan Mohr

Antoine Khoueir

David Scott Ebsen

Zoran Jandric

Aditya Jain

Xiong Liu

Jon David Trantham

Krishnan Subramanian

Qiang Bi

Patrick Breckow Chu

Edward Charles Gage

Mark Ish

Daniel John Benjamin

Joseph Cheng-Tsu Liu

Riyan Alex Mendonsa

Mark David Bedillion

Frank R Dropps

William Albert Challener

Brett Robert Herdendorf

ChoonKiat Lim

Choon Kiat Lim

Anil Junuthula Reddy

Ara Patapoutian

Tim Rausch

Timothy Richard Feldman

Jonathan Williams Haines

MingZhong Ding

David Erich Tetzlaff

Stacey Secatch

Wayne Howard Vinson

Ravishankar Ajjanagadde Shivarama

Peng Li

Michael Joseph Steiner

Jimmy Pang

Raghu Ambekar Ramachandra Rao

Tao Zhang

Jimmy Tze Ming Pang

Adam R Bush

Daniel Aaron Mohr

Stephen Kow Chiew Kuan

Chubing Peng

Bruce Douglas Buch

KianKeong Ooi

Gabor Szita

Martin Giles Blaber

Robert Wayne Moss

Todd Michael Lammers

Walter Richard Eppler

David Scott Seekins

Mai Ghaly

Pierre Asselin

Mark Ian Lutwyche

YangQuan Chen

Richard Esten Bohn

Joseph C Liu

Christophe Daniel Mihalcea

Michael Joo Chiang Toh

Wai Onn Chee

Kwee Teck Say

Tak Koon Ooi

Aik Chuan Lim

Robert Harwell Thibadeau

Scott Younger

Jianbo He

Eric James Dahlberg

Stephen John Wrazien

Bi Qiang

BengSee Lim

See Jee Johaan Koong

Daniel Joseph Klemme

MengEng Lye

Adam Robert Bush

Andre Y Liem

Inci Ozgunes

Xiangjun Feng

Xinghui Huang

Min Shuangquan

An optical engine for a LiDAR system comprises an analog detection channel comprising an avalanche photodiode (APD) optically coupled to light receiving optics and bias circuitry coupled to the APD and configured to adjust a bias set point (BSP) of the APD. Sensors sense disparate environmental factors that impact optical engine performance. Memory stores pre-established APD BSP data including a nominal APD BSP and pre-established dependence data characterizing the impact of disparate environmental factors on the nominal APD BSP. A controller generates, using sensor signals, in-field dependence data characterizing the impact the disparate environmental factors currently have on the nominal APD BSP, calculate an updated APD BSP using the in-field and pre-established dependence data, and shift the BSP of the APD from the nominal APD BSP to the updated APD BSP to enhance optical engine performance.

Adaptive avalanche photodiode bias set point calibration system and method

Implementations described and claimed herein provide a mechanically-scanning 3-dimensional light detection and ranging (3D LiDAR) system including a galvo mirror attached to an armature of a galvanometer to reflect a light signal generated by a light generator, the galvanometer comprising at least one permanent magnet, at least one coil configured to carry current to move the armature, wherein the galvo mirror is configured to reflect the light signal generated by the light generator towards a one or more objects and the galvo mirror is further configured to reflect light signal reflected from the one or more objects towards a light detector.

Compact galvanometer mirror design

An active metasurface that provides low-loss and high-bandwidth modulation control of light includes a number of cells arranged on a substrate. A controller dynamically alters a voltage differential supplied to the electrodes of each of the cells is adapted to alter refractive index of each of the high-index dielectric blocks in order to controllably steer light exiting the cell.

Plasma dispersion effect for metasurface tuning

LiDAR optical paths, particularly in co-located emitter/receiver path configurations, can introduce unintended and unwanted reflections due to mirrors, lenses, and/or enclosure materials or glass that can fall on one or more photosensors. These un-desirable signals can cause significant disruptions in output amplifier biasing and/or severe channel saturation. Autonomous vehicle LiDAR is particularly challenging as packaging requirements require complex optics to direct the laser source; the target size, shape, and relative velocity, and distance to the autonomous vehicle are unknown; and the location of the target objects within range are potentially rapidly changing over time. The presently disclosed dual photodiode LiDAR systems are used to separate and compensate for errors introduced by LiDAR optics to improve the accuracy and reliability of LiDAR systems, including but not limited to autonomous vehicle LiDAR systems.

Dual photodiode light detection and ranging

Systems, devices, and methods may use input/output (I/O) apparatus and an optical switching medium to switch, or route, optical data signals. The optical switching medium may include a plurality of optical switching regions. The I/O apparatus may transmit optical data signals to and receive optical data signals from the optical switching medium to provide switching functionality.

Movable optical switching medium

Implementations described and claimed herein provide a mechanically-scanning 3-dimensional light detection and ranging (3D LiDAR) system including a galvo mirror assembly, wherein the galvo mirror assembly includes a mirror attached to an armature of a galvanometer to reflect a light signal generated by a light generator and received from a target, at least one permanent magnet, and at least one coil configured to carry a current to move the armature.

Implementations described and claimed herein provide a high-capacity, high-bandwidth scalable storage device. The scalable storage device includes a layer stack including at least one memory layer and at least one optical control layer positioned adjacent to the memory layer. The memory layer includes a plurality of memory cells and the optical control layer is adapted to receive optically-encoded read/write signals and to effect read and write operations to the plurality of memory cells through an electrical interface.

Scalable storage device

An active metasurface includes a number of periodically-repeated unit cells arranged on a substrate that each include a plasmonic waveguide shaped and sized to provide a cutoff mode that captures light of a target wavelength. The active metasurface includes an index modulation controller that controllably varies a voltage differential across each one of the periodically-repeated cells to change a phase of light incident on the metasurface.

Cutoff modes for metasurface tuning

Apparatus and method for transferring data in a data storage system, such as but not limited to a hard disc drive (HDD). An optical link is provided between an analog front end (AFE) of a data storage device controller circuit (SOC) and a preamplifier/driver circuit (preamp) mounted to a rotary actuator to transfer an analog domain signal. A selected component is extracted from the signal using a modulation element such as a micro-resonance ring (MRR) or a Mach-Zehnder Interferometer Modulation (MZM) device. The extracted component is forwarded to a processing circuit to facilitate a transfer of data between a local memory and a non-volatile memory (NVM). The optical link includes a flexible portion in a flex circuit affixed to the rotary actuator and which supports the preamp. Multiplexed read, write, and power control signals are concurrently transmitted via the optical link. The link can concurrently service multiple head-disc assemblies (HDAs).

Analog optical link for a moveable actuator in a data storage system

An active metasurface includes a number of periodically-repeated unit cells arranged on a substrate, each of the unit cells including a high-index dielectric block; a heat source positioned to selectively modulate heat applied to the high-index dielectric block; and an insulating undercut region at an interface between the high-index dielectric block and the substrate.

Thermal undercut structure for metasurface tuning

A data storage system includes a data storage foil mounted within the data storage system, the data storage foil has at least one data storage surface. The data storage system also includes a head configured to interact with the at least one data storage surface to carry out at least one of data read or data write operations.

Assembly that enables reduction in disk to disk spacing

An apparatus includes a detector and a light source configured to emit light. The apparatus further includes a disk with a set of prisms and that is configured to rotate, arranged to receive and direct the emitted light, and arranged to receive and direct backscattered light. The apparatus further includes a reflecting apparatus with multiple reflective facets and configured to rotate, arranged to reflect the emitted light, and arranged to reflect the backscattered light. A focusing apparatus is arranged to focus the backscattered light from the disk towards the detector.

Pyramidal mirror laser scanning for lidar

An apparatus includes a detector, a light source configured to emit light, a reflecting apparatus having multiple reflective facets, and a mirror. The reflecting apparatus is configured to rotate around an axis and arranged to reflect the emitted light from the light source and reflect backscattered light. The mirror is arranged to reflect the backscattered light from the reflecting apparatus towards the detector.

Rotating pyramidal mirror

A system includes a chamber, a support structure disposed in the chamber, and one or more heads. The support structure is configured to support and position a substrate. The one or more heads includes an energy source coupled to a near-field transducer for providing localized energy towards the support structure at select locations within the chamber.

Atomic layer deposition systems, methods, and devices

Growing community of inventors

Eden Prairie, MN, United States of America

Kevin Arthur Gomez