-
公开(公告)号：US20230071722A1
公开(公告)日：2023-03-09
申请号：US17899126
申请日：2022-08-30
Applicant: Seagate Technology LLC
Inventor： Daniel Joseph Klemme , Walter R. Eppler
IPC: G01S7/4913 , G01S17/32 , G01S17/93
Abstract: Method and apparatus for generating and processing pulses in a light detection and ranging (LiDAR) system. In some embodiments, an emitter outputs phase modulated continuous wave (PMCW) light sequences encoded with a selected encoding scheme such as a pseudo-random bit sequence (PRBS). An analog processing circuit processes reflected light sequences from a target illuminated by the PMCW light sequences by performing analog extraction of a doppler component and analog encoding correlation prior to digitalization of the received signal. The analog processing circuit can include a plurality of demodulation stages each multiplying the input signals by positive and negative magnitudes of a scalar value at times corresponding to signal transitions of different associated doppler clock frequencies. A threshold circuit applies suitable thresholding, after which the signals can be digitized by an analog-to-digital converter (ADC) for further processing in the digital domain to obtain range information associated with the detected target.
-
公开(公告)号：US20230003890A1
公开(公告)日：2023-01-05
申请号：US17853372
申请日：2022-06-29
Applicant: Seagate Technology LLC
Inventor： Daniel Joseph Klemme , Aditya Jain , Kevin A. Gomez
Abstract: A light detection and ranging system can have a controller connected to an emitter and a detector. The controller may be configured to selectively move portions of the detector to increase a pixel resolution for a portion of a downrange field of view. The controller can utilize multi-spectral wavelength customization to further increase the pixel resolution of the detector.
-
公开(公告)号：US20230003845A1
公开(公告)日：2023-01-05
申请号：US17851900
申请日：2022-06-28
Applicant: Seagate Technology LLC
Inventor： Daniel Joseph Klemme , Aditya Jain
IPC: G01S7/481
Abstract: A light detection and ranging system can have a controller connected to a plurality of light energy emitters arranged as a solid-state optical phase array. The controller can be configured to adjust an optical element to change a light beam angle from at least one light energy emitter of the plurality of light energy emitters. The optical element can be physically separated from, and positioned downrange from, the plurality of light energy emitters.
-
公开(公告)号：US20230012158A1
公开(公告)日：2023-01-12
申请号：US17863026
申请日：2022-07-12
Applicant: Seagate Technology LLC
Inventor： Daniel Joseph Klemme , Kevin A. Gomez , Daniel Aaron Mohr
IPC: G01S17/89 , G01S7/481 , G01S7/483 , G01S17/931 , G02B26/08
Abstract: Apparatus and method for enhancing resolution in a light detection and ranging (LiDAR) system. In some embodiments, an emitter is configured to emit a first beam of light pulses over a baseline, first field of view (FoV). Responsive to an activation signal, a controller circuit directs the emitter to concurrently interleave a second beam of light pulses over a second FoV within the first FoV. The first and second beams may be provided at different resolutions and frame rates, and may have pulses with different waveform characteristics to enable decoding using separate detection channels. The interlaced beams provide variable scanning of particular areas of interest within the baseline FoV. The second beam may be activated based on range information obtained from the first beam, or from an external sensor. Separate light sources operative at different wavelengths can be used to generate the first and second beams.
-
公开(公告)号：US20230003861A1
公开(公告)日：2023-01-05
申请号：US17854351
申请日：2022-06-30
Applicant: Seagate Technology LLC
Inventor： Eric James Dahlberg , Daniel Joseph Klemme
Abstract: A light detection and ranging system can have an avalanche photodiode detector positioned between at least one pair of non-avalanche photodiode detectors with each detector connected to a photon controller. The photon controlled may selectively activate one or more detectors to determine an alignment of photons emitted by one or more emitters.
-
Patent Agency Ranking
公开(公告)号：US20230003860A1
公开(公告)日：2023-01-05
申请号：US17852890
申请日：2022-06-29
Applicant: Seagate Technology LLC
Inventor： Eric James Dahlberg , Adam Robert Bush , Daniel Aaron Mohr , Daniel Joseph Klemme , James Froberg
Abstract: A light detection and ranging system can have a light source coupled to a polygon reflector having a plurality of facets. A controller can be connected to the light source and directed to generate and execute a calibration strategy that alters an orientation of the light source in response to identification of a position of at least one facet of the plurality of facets.
-
公开(公告)号：US20230003857A1
公开(公告)日：2023-01-05
申请号：US17851781
申请日：2022-06-28
Applicant: Seagate Technology LLC
Inventor： Daniel Joseph Klemme
IPC: G01S7/499 , G01S17/93 , G01S7/4912 , G01S7/486
Abstract: A light detection and ranging system can have a light source coupled to a reflector consisting of a waveguide. The waveguide may be tuned to a selected polarization by a controller to block retroreflected photons resulting from a light beam emitted from the reflector. The waveguide polarization can be altered over time by the controller to provide customized blocking of photons.
-
公开(公告)号：US11676636B2
公开(公告)日：2023-06-13
申请号：US17008208
申请日：2020-08-31
Applicant: Seagate Technology LLC
Inventor： Kevin A. Gomez , Dan Mohr , Daniel Joseph Klemme , Aditya Jain
CPC classification number: G11B20/10259 , G11B20/10462 , G11B20/1217 , G11B20/1803 , G11C13/04 , G11B2020/1237
Abstract: 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.
-
公开(公告)号：US20230036431A1
公开(公告)日：2023-02-02
申请号：US17841854
申请日：2022-06-16
Applicant: Seagate Technology LLC
Inventor： Daniel Joseph Klemme , Eric James Dahlberg
Abstract: Method and apparatus for detecting and compensating for highly reflective targets such as retroreflectors in a light detection and ranging (LiDAR) system. In some embodiments, a bloom event (response) is detected in a detector output in response to the transmission and reflection of emitted light pulses against a target. A beam width of the emitted light pulses on the target is determined. The beam width is used to compensate at least a portion of the bloom response to obtain range information associated with the target. In this way, bloom compensation is provided without shutting down the capabilities of the LiDAR system in detecting the target causing the bloom, as well as in detecting other targets in the field of view.
-
公开(公告)号：US20220413110A1
公开(公告)日：2022-12-29
申请号：US17844227
申请日：2022-06-20
Applicant: Seagate Technology LLC
Inventor： Daniel Joseph Klemme , Kevin A. Gomez
Abstract: Method and apparatus for light detection and ranging (LiDAR). In some embodiments, an emitter is used to emit a set of pulses to impinge a target, and a detector is used to detect a corresponding set of reflected pulses. Range information associated with the target is extracted using the reflected pulses. To compensate for doppler shift and enable more emitted pulses to be in-flight between the system and the target, a maximum expected doppler shift is determined, and the emitted pulses are provided with differential frequency intervals that are greater than the determined maximum expected doppler shift, such as a multiple (e.g., 2×) of the maximum expected doppler shift. In some cases, each in-flight pulse will have a unique frequency separated from all other pulse frequencies by at least the maximum expected doppler shift. Adaptive adjustments can be made such as increasing the differential frequency intervals for long distance targets.
-
-
-
-
-
-
-
-
-
Search Results
20
records
(took 0.017 seconds)
