Mitsubishi Electric‘s patent involves a map information correction apparatus that prioritizes feature points of own mobile object surrounding information to correct map errors efficiently. The system uses sensor data and calculations to determine priorities, correct errors, and guide the mobile object along a corrected path. GlobalData’s report on Mitsubishi Electric gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Mitsubishi Electric, Smart climate control systems was a key innovation area identified from patents. Mitsubishi Electric's grant share as of February 2024 was 44%. Grant share is based on the ratio of number of grants to total number of patents.

Map information correction apparatus for own mobile object

Source: United States Patent and Trademark Office (USPTO). Credit: Mitsubishi Electric Corp

A recently granted patent (Publication Number: US11927458B2) discloses a map information correction apparatus designed to enhance the accuracy of map information used by mobile objects. The apparatus includes feature point priority determination circuitry that assigns priorities to feature points based on sensor information and a preset priority table. It also features error calculation circuitry that calculates errors in the map information using high-priority feature points and correction circuitry to rectify these errors. The corrected map information is then utilized to control the movement of the mobile object along a specified path. Additionally, the apparatus includes a used feature pair determination circuitry to decide whether to use specific feature pairs in error calculation, based on a preset use threshold.

Furthermore, the patent describes a map information correction system that incorporates the map information correction apparatus within a mobile object. This system also involves sensor information acquisition circuitry, transmission and reception circuitry, coordinate transformation circuitry, and control circuitry to facilitate the movement of the mobile object. The system can communicate with a map information creation apparatus to exchange sensor information, correction map information, and priority information, thereby ensuring accurate map data for navigation purposes. Overall, the patent outlines a comprehensive approach to improving map information accuracy for mobile objects, enhancing their navigation capabilities through error correction and priority-based feature point determination.

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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.