Microvision’s patent involves systems and methods to enhance detector sensitivity and reliability in scanning laser devices. By utilizing detectors with multiple sensors to receive laser reflections and cancel back reflections, the technology improves detection of low energy reflections within the scan field. GlobalData’s report on Microvision gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Microvision, Lidar-assisted navigation was a key innovation area identified from patents. Microvision's grant share as of May 2024 was 44%. Grant share is based on the ratio of number of grants to total number of patents.
Scanning laser device with increased detector sensitivity
A recently granted patent (Publication Number: US11982765B2) discloses an innovative apparatus that includes a laser light source producing laser light pulses, an optical assembly with optical elements for scanning the pulses into a scan field, and a first detector with sensors to receive reflections from objects within the scan field and back reflections from the optical elements. The apparatus features a sensing circuit that cancels out back reflections to generate an output signal indicating reflections from objects in the scan field. The first sensor is optically aligned with the laser light pulses, while the second sensor is not aligned, with a slight optical difference between their fields of view.
Furthermore, the apparatus includes additional sensors, calibration circuits, and TOF circuitry for measuring distances to objects in the scan field. The sensing circuit is designed to subtract signals from different sensors to mitigate back reflections and accurately detect object reflections. The patent also covers variations of the apparatus, such as a scanning laser device with IR laser light pulses and beam shaping optics. These devices are equipped with sensors at specific working distances and optical alignments to enhance the detection of reflections from objects within different ranges. Overall, the patented technology aims to improve the accuracy and efficiency of object detection using laser light pulses and optical assemblies.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
