How Devices Give Haptic Feedback While You Hover Your Finger

This patent describes a system that triggers physical vibrations or sensations on a device when your finger hovers near the screen without actually touching it.

What it covers

The patent claims a system that uses proximity sensors to detect when a finger or object is hovering over a touchscreen. Because the device knows exactly which button or menu item you are hovering over, it can trigger a specific haptic effect—like a vibration—before you even make contact. For example, as you move your finger over a virtual button on a screen, the device might provide a subtle buzz to confirm you are positioned correctly before you press down. This creates a tactile sense of depth or interaction in a space where no physical buttons exist.

What it doesn't cover

• —Does not cover haptic feedback that only occurs after physical contact with the screen.
• —Does not cover systems that lack a proximity sensor to detect the hovering object.
• —Does not cover haptic effects that are not tied to specific selectable functionality on the display.

The clever bit

The innovation is using proximity data to map a 'hover' state to a specific UI element, allowing the device to treat the air above the screen as an extension of the interface itself.

Why it matters

This technology bridges the gap between static screens and physical interfaces by providing 'pre-touch' feedback. It is a foundational concept for improving accessibility and user confidence in touch-only devices, ensuring users know exactly what they are about to select. Immersion Corporation has long been a key player in haptic licensing, and this patent represents their effort to extend tactile feedback into the 'hover' space.

Real-world examples

• 1.Hover-state UI feedback on high-end smartphones
• 2.Tactile confirmation in automotive infotainment touchscreens
• 3.Accessibility features for visually impaired users navigating menus