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Patent Agency Ranking
公开(公告)号：US20210373137A1
公开(公告)日：2021-12-02
申请号：US17126085
申请日：2020-12-18
Applicant: Keysight Technologies, Inc.
Inventor： Chan Fong Tan , Christopher Coleman , Paul L. Corredoura , Bogdan Szafraniec , Mong Long Ang
Abstract: Systems and components for testing a light detection and ranging (LIDAR) device under test (DUT) are described. In one example, an ellipsoid is adapted to receive the LIDAR DUT at a first focal point, where light transmitted from the LIDAR DUT is incident on the second focal point. In another example a plurality of optical waveguides arranged in at least a portion of a circle, and the plurality of optical waveguides are adapted to receive light from the LIDAR DUT. In another example, a LIDAR distance simulator is adapted to receive an optical input, and includes optical switches that are selectively connected to one of a plurality of optical delay devices to an input of the one of a plurality of optical input channels. Illustrative delay elements may be realized through optical delay elements or a combination of optical and electrical delay elements.
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公开(公告)号：US12204054B2
公开(公告)日：2025-01-21
申请号：US17126085
申请日：2020-12-18
Applicant: Keysight Technologies, Inc.
Inventor： Chan Fong Tan , Christopher Coleman , Paul L. Corredoura , Bogdan Szafraniec , Mong Long Ang
IPC: G01S7/497 , G02B5/10 , G02B26/02 , G01S17/10 , G01S17/931
Abstract: Systems and components for testing a light detection and ranging (LIDAR) device under test (DUT) are described. In one example, an ellipsoid is adapted to receive the LIDAR DUT at a first focal point, where light transmitted from the LIDAR DUT is incident on the second focal point. In another example a plurality of optical waveguides arranged in at least a portion of a circle, and the plurality of optical waveguides are adapted to receive light from the LIDAR DUT. In another example, a LIDAR distance simulator is adapted to receive an optical input, and includes optical switches that are selectively connected to one of a plurality of optical delay devices to an input of the one of a plurality of optical input channels. Illustrative delay elements may be realized through optical delay elements or a combination of optical and electrical delay elements.
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公开(公告)号：US20230132855A1
公开(公告)日：2023-05-04
申请号：US17513118
申请日：2021-10-28
Applicant: Keysight Technologies, Inc.
Inventor： Chan Fong Tan , Yenn Chang Tan , Kok Eng Looi , Chee Wei Liu , Mong Long Ang
Abstract: An apparatus for testing a Lidar sensor includes a Lidar sensor platform, a target board including at least one vertically elongate surface facing in a direction of the Lidar sensor platform, and a base unit configured to position the target board to obtain a desired reflective property of the target board relative to an incident light scan emitted by a Lidar sensor mounted to the Lidar sensor platform during a target emulation test of the Lidar sensor.
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公开(公告)号：US12174296B2
公开(公告)日：2024-12-24
申请号：US17176807
申请日：2021-02-16
Applicant: Keysight Technologies, Inc.
Inventor： Chan Fong Tan , Kok Eng Looi , Yenn Chang Tan , Chee Wei Liu
Abstract: An apparatus automatically positions an optical test module relative to a Lidar sensor during a target simulation test of the Lidar sensor. The apparatus includes a sensor platform configured to support a Lidar sensor, and a test module platform configured to support an optical test module such that an optical window of the optical test module faces in a direction towards the Lidar sensor supported by the sensor platform. The apparatus further includes a vertical actuator configured to convey the test module platform relative to the sensor platform such that the optical test module moves in a vertical arc while the optical window of the optical test module faces the Lidar sensor, a horizontal actuator configured to convey the test module platform relative to the sensor platform such that the optical test module moves in a horizontal arc while the optical window of the optical test module faces the Lidar sensor, and a rotational actuator configured to rotate the optical test module about a vertical axis of the test module platform.
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公开(公告)号：US20220260714A1
公开(公告)日：2022-08-18
申请号：US17176807
申请日：2021-02-16
Applicant: Keysight Technologies, Inc.
Inventor： Chan Fong Tan , Kok Eng Looi , Yenn Chang Tan , Chee Wei Liu
Abstract: An apparatus automatically positions an optical test module relative to a Lidar sensor during a target simulation test of the Lidar sensor. The apparatus includes a sensor platform configured to support a Lidar sensor, and a test module platform configured to support an optical test module such that an optical window of the optical test module faces in a direction towards the Lidar sensor supported by the sensor platform. The apparatus further includes a vertical actuator configured to convey the test module platform relative to the sensor platform such that the optical test module moves in a vertical arc while the optical window of the optical test module faces the Lidar sensor, a horizontal actuator configured to convey the test module platform relative to the sensor platform such that the optical test module moves in a horizontal arc while the optical window of the optical test module faces the Lidar sensor, and a rotational actuator configured to rotate the optical test module about a vertical axis of the test module platform.
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