Mercedes-Benz Group has patented a device and method for projecting enhanced image data onto vehicle windowpanes. The system utilizes an image processing unit and a brightness sensor to adjust dark image regions based on surrounding brightness, improving visibility through a gradation curve technique. GlobalData’s report on Mercedes-Benz Group 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 Mercedes-Benz Group, Battery management systems was a key innovation area identified from patents. Mercedes-Benz Group's grant share as of July 2024 was 40%. Grant share is based on the ratio of number of grants to total number of patents.
Image projection device adjusting brightness based on surroundings
The patent US12071012B2 describes a device designed to enhance image visibility for vehicle occupants by adjusting the brightness of projected images based on surrounding light conditions. The device includes an image processing unit that generates second image data from first image data, utilizing a brightness sensor to record the ambient light around the vehicle. This sensor informs the image processing unit, which applies a predetermined gradation curve to brighten dark regions of the first image data that fall below a specific brightness threshold. The degree of brightening is proportional to the recorded ambient brightness, ensuring that the visibility of important image details is optimized in varying lighting conditions.
Additionally, the patent outlines methods for refining the image projection based on the occupants' viewing angles. The system can detect the current viewing angle of at least one occupant, allowing it to selectively brighten only those dark image regions that are relevant to the occupant's line of sight. The device also incorporates features that manage the timing and extent of brightness adjustments in response to changes in ambient light, including a predetermined time delay and a constant function that varies based on the direction of brightness change. This functionality may include hysteresis behavior, which helps to stabilize the image adjustments against rapid fluctuations in surrounding brightness, thereby enhancing the overall user experience while ensuring safety and clarity.
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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.
