Radar-Based Gesture Control for Proximity Mode Switching

The patent replaces traditional mechanical or contact-based control interfaces (touchscreens, physical buttons) with a radar-based gesture recognition system. The radar module detects motion and position of control articles in three-dimensional space, enabling contactless interaction. This substitution eliminates the need for physical contact while providing intuitive gesture-based control, resolving the contradiction by improving ease of operation through natural gestures while managing device complexity through integrated radar technology.

The patent divides the spatial detection area into multiple distinct proximity zones (first proximity zone for presentation mode, second proximity zone for interactive mode) based on distance from the computing device. Each zone corresponds to a specific interaction mode, allowing the system to automatically adapt its functionality based on the detected position of the control article. This segmentation enables versatile mode switching while managing complexity through clear spatial boundaries and dedicated detection algorithms for each zone.

The patent employs radar technology to detect and measure the position, velocity, and motion patterns of control articles in three-dimensional space. The radar module emits electromagnetic waves and analyzes the reflected signals to precisely determine the spatial coordinates and movement characteristics of gestures without physical contact. This enables accurate measurement of in-air gestures, resolving the contradiction by providing the necessary measurement precision through advanced radar signal processing while maintaining intuitive ease of operation.