Light Targeting Peripheral for Precise Display Interaction

The patent introduces a light targeting peripheral as an intermediary device between the user and the display screen. This peripheral projects visible light dots onto the screen to indicate target positions, and uses an infrared LED to emit non-visible light signals when triggered. The camera detects these infrared signals to determine the exact targeting position, thereby achieving precise targeting without requiring complex direct interaction mechanisms.

The patent replaces traditional mechanical pointing devices (like joysticks or mice) with an optical-based system. Instead of using mechanical movements to indicate target positions, the system uses light projection and optical detection. The light targeting peripheral projects visual cues onto the screen, and the camera optically detects the triggered position, substituting mechanical interaction with optical fields for more precise measurement.

The patent creates a universal targeting system that works across multiple display types and sizes. The light targeting peripheral adapts its light projection to match the display characteristics, and the camera system calibrates its detection field according to the specific display being used. This allows the same basic mechanism to function accurately on televisions, monitors, projectors, or even non-electronic surfaces like posters, achieving both versatility and precision.

The system dynamically adjusts parameters based on the display being used. The camera calibrates its field of view and detection sensitivity according to the display size and type. The light targeting peripheral adjusts the projection distance, dot size, and intensity to match the specific display characteristics. These parameter changes allow the system to maintain measurement precision across varying display configurations.

The patent segments the light functions into two distinct components: visible light for user guidance and non-visible infrared light for detection. The light targeting peripheral projects visible light dots onto the screen to show target positions and guide the user. When the user triggers the device, it emits infrared light in the same spatial location. The camera then detects only the infrared component, ignoring the visible light, thereby achieving accurate trigger position detection without interference from the visible guidance lights.

The patent introduces infrared light as an intermediary carrier for trigger position information. Instead of using the same visible light for both guidance and detection, the system uses invisible infrared radiation as a separate communication channel. The light targeting peripheral modulates the infrared LED to encode trigger information, and the camera with infrared sensitivity detects this intermediary signal to precisely determine trigger location without being interfered with by the visible light used for user guidance.