Google · AR / VR · Filed Feb 27, 2026 · USPTO published Nov 12, 2026 · This week's release

Google Patents a Wrist Buzz That Tells You When You're Writing on Thin Air

Google has filed a patent application to give floating AR notepads a missing feature: the feeling of touching something. A buzz on your wrist tells you your pinch has reached the page.

By Patentlyze Team · Updated Nov 12, 2026 · 3 min read

A person wearing smart glasses and a wristband writes in midair on a virtual surface projected in front of them. Drawing from patent filing US 2026/0360092 A1. — A person wearing smart glasses and a wristband writes in midair on a virtual surface projected in front of them.All 8 drawings ↓

Publication number: US 2026/0360092 A1(US20260360092A1)
Applicant: GOOGLE LLC
Filed · Published: Feb 27, 2026 · Nov 12, 2026
Inventors: Stiven Guillaume Francois Morvan, Yodahe Alemu, Dongeek Shin
Status when we published: Waiting for an examiner
Document: 20 claims
US classification: 345/633
Parent application: National Stage Entry of PCT/US2023/076554 (filed Oct 11, 2023)(PCTUS2023076554)

What Google's air-writing wrist buzz does

Every time you write with a pen, the desk pushes back against your hand, and that tiny bump tells you the tip has touched the page. Now take a notepad that floats in the air in front of your smartglasses. Nothing pushes back, so you can't tell whether you're touching it.

Google's patent application describes a fix. Cameras on the glasses watch your hand. When you pinch your fingers together and the pinch reaches the floating page, a watch, ring or band on your wrist vibrates, a little buzz that stands in for the feel of paper.

Before you get there, a circle on the page shrinks as your fingers close in, and it disappears once you're close enough. Push through the page and it covers the part of your hand that has gone past it. Then you just move your hand and a line appears.

From the filing · CLAIM 1

determining that a user is writing on a virtual annotation surface based on a portion of a hand of the user being within a threshold distance of the virtual annotation surface and the hand forming a predetermined gesture …

Translation: The system detects when your hand gets close enough to make a specific sign in the empty air.

How glasses and a watch spot a pinch on air

The core idea is a two-part test. The computing device (usually smartglasses with cameras) decides you are writing when part of your hand, such as the fingertips, is within a set distance of the virtual page and your hand is making a preset gesture. The filing's examples of gestures are a pinch or a tap, and its example distances are one centimeter, half a centimeter or a quarter of a centimeter.

To spot the gesture, the system finds hand landmarks (points like finger joints and fingertips) in the camera images and compares them to a stored gesture library. A neural network (software trained on many examples) can do the recognizing. A tap can also be picked up from a wearable's motion sensor as two quick, opposite jolts in acceleration.

Once both conditions hold, the device tells a wearable, such as a wrist band, watch or ring, to vibrate. If your hand then moves while staying in range, which accelerometer readings or camera images can confirm, the glasses draw a virtual stroke that follows it: letters, numbers or sketches.

The filing also describes extra cues for when you are not yet in range:

A shape on the page that shrinks as your fingers approach and vanishes inside the threshold.
The page covering the part of your hand that has gone past it.
Sound or a different type of vibration instead of a visual cue.

From the filing · THE ABSTRACT

… based on determining that the user is writing on the virtual annotation surface, providing haptic feedback to the user.

Translation: Once the system realizes you are writing on nothing, it vibrates your wrist.

Why writing on thin air needs a buzz

If you ever use AR glasses for notes or sketches, this decides whether writing in the air feels usable. Without a surface to press on, it is hard to know where the page is, so strokes start late or get lost. A buzz tells you when you have touched down. It also means the notepad can float anywhere within reach, with no desk or wall needed.

The filing builds this on gear you may already wear, since a watch or ring can do the buzzing. It names no product, and nothing in it says one is coming. It does show Google working through the small details that make hand-only controls for glasses feel natural.

Google's 56th filing we've tracked since May in our smart glasses display work watchlist builds on the fold-wake fix and the light-switching contrast work, continuing to refine how these glasses show images.

Editorial take

Claim 1 is short and wide. It needs only three things: a part of your hand within a set distance of a floating writing surface, a preset gesture, and a buzz of some kind once both are true.

Look at what the claim leaves out. It does not require glasses, a wrist band, a camera or even a visible line of ink. Those details arrive in later claims, such as the wrist band in claim 3 and the pinch in claim 9. If granted, the core claim could reach any gadget that taps you when your fingers meet an invisible page.

In practice that is a small, sensible fix for a real annoyance: nothing pushes back when you write in mid-air. The breadth is the part to watch, because the idea is simple enough that other makers of AR glasses could easily land on something close to it.

Source: US 2026/0360092 A1 at the USPTO (PDF). Full patent text and figures are in the official publication.

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The drawings · 8 sheets

8 drawing sheets from US 2026/0360092 A1 · click any drawing to enlarge

Writing in midair while wearing smart glasses and a smartwatch, drawing sheet 1 from US 2026/0360092 A1 — Sheet 1 Writing in midair while wearing smart glasses and a smartwatch

Visual cues guide hand movement across the writing surface, drawing sheet 2 from US 2026/0360092 A1 — Sheet 2 Visual cues guide hand movement across the writing surface

Tracking hand position to trigger ink strokes and vibrations, drawing sheet 3 from US 2026/0360092 A1 — Sheet 3 Tracking hand position to trigger ink strokes and vibrations

Internal parts that track hand movements and coordinate touch sensations, drawing sheet 4 from US 2026/0360092 A1 — Sheet 4 Internal parts that track hand movements and coordinate touch sensations

Smart glasses project the virtual writing area inside lenses, drawing sheet 5 from US 2026/0360092 A1 — Sheet 5 Smart glasses project the virtual writing area inside lenses

Angled view of the smart glasses frame and hinges, drawing sheet 6 from US 2026/0360092 A1 — Sheet 6 Angled view of the smart glasses frame and hinges

An enclosed headset alternative for fully virtual environments, drawing sheet 7 from US 2026/0360092 A1 — Sheet 7 An enclosed headset alternative for fully virtual environments

Triggering wrist feedback whenever midair writing begins, drawing sheet 8 from US 2026/0360092 A1 — Sheet 8 Triggering wrist feedback whenever midair writing begins

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The drawings · 8 sheets

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