# 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.

- **Patent:** US 8898564
- **Original title:** Haptic effects with proximity sensing
- **Owner:** Immersion Corp
- **Granted:** 2014
- **Status:** Active
- **Times cited:** 11
- **Field:** consumer_electronics, mechanical, software

## What it does

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 does NOT 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.

## 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

## 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.

## Frequently asked questions

### What does How Devices Give Haptic Feedback While You Hover Your Finger cover?

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.

### Who owns patent US 8898564?

Immersion Corp owns this patent, granted in 2014.

### When does this patent expire?

This patent is expected to expire on November 25, 2034, when the invention enters the public domain.

### What is patent US 8898564 cited by?

This patent has been cited by 11 later patents that build on its ideas.

### What problem does this patent solve?

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.

### What does this patent NOT cover?

Does not cover haptic feedback that only occurs after physical contact with the screen.

**Full plain-English explainer:** https://patentbrief.org/patent/us/8898564/siri-intelligent-automated-assistant

**Original patent:** https://patents.google.com/patent/US8898564

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_Source: PatentBrief — https://patentbrief.org. Patent facts are from public records; the plain-English explanation is PatentBrief's._