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How Smartphones Switch Between Slow and Fast Scrolling

A system that automatically changes how a list scrolls based on how fast or hard you interact with the screen.

Granted 2014ActiveExpires 2028Owned by Apple IncInvented by William Bull, Eric James Hope, Kourtny Minh HICKS + 1 more

Original patent title: “Scrolling techniques for user interfaces

Plain-English explanation by SahiLast reviewed · June 13, 2026

A system that automatically changes how a list scrolls based on how fast or hard you interact with the screen. Granted to Apple Inc in 2014 with 34 claims and 42 forward citations, and it is expected to expire in 2028.

Coverage

What does this patent actually cover?

This patent describes a way to manage long lists on a screen by switching between two scrolling modes based on user input speed or force. In 'elemental' mode, the system scrolls through items one by one, moving smoothly from the end of one group to the start of the next. In 'quick' mode, triggered when the input exceeds a certain threshold (like a faster swipe), the system skips ahead to the start of the next sublist. This allows a user to navigate large media libraries, like a music collection, much faster than manually scrolling through every single entry.

The gap

What does this patent NOT cover?

  • Does not cover scrolling that does not use sublists or categorized metadata.
  • Does not cover simple linear scrolling that ignores input velocity or duration.
  • Does not cover non-digital interfaces or physical paper-based lists.

These exclusions are unique to PatentBrief — derived from the actual claim language, not patent-office boilerplate.

Key facts

Patent numberUS 8683378
StatusActive
FieldConsumer Electronics
AssigneeApple Inc
InventorsWilliam Bull, Eric James Hope, Kourtny Minh HICKS and 1 other
Filed2008
Granted2014
Expires2028
Claims34
Times cited42
LitigationNone on record
Value · $115K$369KModest

What made this novel

The system uses the physical attribute of the input (like speed or acceleration) as a trigger to switch the software's navigation logic, effectively changing the 'granularity' of the UI on the fly.

The Patent Drawing

Representative patent drawing for Scrolling techniques for user interfaces (US 8683378)
Representative figure · US 8683378All figures on Google Patents →
Scrolling techniques for user …(Primary claim)consumer electronicssoftware

Schematic visualization of the patent's claim structure. Hand-drawn diagrams in progress for each landmark patent.

Where you've seen this

Real-world examples

01

Apple Music library scrolling

02

Contact list navigation on iOS

03

iPod Click Wheel interface

04

Modern smartphone file browsers

Why it matters

The bigger picture

This technology was essential for making early touch-screen media players, like the iPod and iPhone, usable. Without a way to 'jump' through long lists, users would have to manually scroll through thousands of songs, which was impractical on small screens. It set the standard for how we navigate large digital libraries on mobile devices today.

Filed

January 9, 2008

Granted

March 25, 2014

Market context

Who's building on this

Companies in this space

Apple remains the primary user of this technology in its iOS and iPadOS interfaces. Other major mobile operating system developers, such as Google for Android, have implemented similar adaptive scrolling mechanisms to handle large datasets efficiently.

Market impact

This patent helped define the user experience expectations for mobile devices in the late 2000s. It enabled the transition from static, button-based navigation to fluid, gesture-based interfaces, making large-scale data consumption on small screens commercially viable.

Claim 1 — Plain English

What this patent covers

This patent describes a way to manage long lists on a screen by switching between two scrolling modes based on user input speed or force. In 'elemental' mode, the system scrolls through items one by one, moving smoothly from the end of one group to the start of the next. In 'quick' mode, triggered when the input exceeds a certain threshold (like a faster swipe), the system skips ahead to the start of the next sublist. This allows a user to navigate large media libraries, like a music collection, much faster than manually scrolling through every single entry.

The clever bit

The system uses the physical attribute of the input (like speed or acceleration) as a trigger to switch the software's navigation logic, effectively changing the 'granularity' of the UI on the fly.

What it does not cover

  • Does not cover scrolling that does not use sublists or categorized metadata.
  • Does not cover simple linear scrolling that ignores input velocity or duration.
  • Does not cover non-digital interfaces or physical paper-based lists.

Patent timeline

Filing

Application submitted to the patent office

Publication

Application published, typically 18 months after filing

Grant

Patent officially issued

Expiration

Patent enters public domain

PatentBrief Score

Impact Score

Strong

Citation count

33/40

Moderately cited

Claim breadth

20/20

Very broad protection

Recency

5/20

Granted 10–20 years ago

Assignee scale

20/20

Major company or institution

PatentBrief Impact Score — based on citation count, claim breadth, recency, and assignee scale. Not a legal assessment.

Heuristic Value Estimate

What this patent might be worth

Modest

$115K$369K

Midpoint $230K · 1.5 yr remaining · industry ×1.6

Adjust inputs →

Heuristic only — blends forward/backward citation counts, claim scope, time remaining, litigation history, and CPC-derived industry baseline. Real valuations need a professional appraisal.

Claim text not yet imported for this patent

The original legal language

Original claims

34 claims as filed with the patent office.

Concepts involved

ClaimPrior artNon-obviousnessNoveltySpecificationAssigneePatent term

Citations

Patent lineage

Cites earlier patents

664

earlier patents this invention cites as foundations

View prior art →

Cited by later patents

42

later patents that build on this invention

View patents →

Cite this patent

Bull, W., Hope, E. J., HICKS, K. M., & Wood, P. (2014). How Smartphones Switch Between Slow and Fast Scrolling (U.S. Patent No. 8,683,378). U.S. Patent and Trademark Office. https://patentbrief.org/patent/us/8683378/scrolling-techniques-for-user-interfaces

Auto-generated from the patent record. Double-check author order and the issue date against the official USPTO document before submitting.

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Common Questions

Frequently Asked Questions

What does How Smartphones Switch Between Slow and Fast Scrolling cover?

A system that automatically changes how a list scrolls based on how fast or hard you interact with the screen.

Who owns patent US 8683378?

Apple Inc owns this patent, granted in 2014.

When does this patent expire?

This patent is expected to expire on January 9, 2028, when the invention enters the public domain.

What is patent US 8683378 cited by?

This patent has been cited by 42 later patents that build on its ideas.

What problem does this patent solve?

This technology was essential for making early touch-screen media players, like the iPod and iPhone, usable. Without a way to 'jump' through long lists, users would have to manually scroll through thousands of songs, which was impractical on small screens. It set the standard for how we navigate large digital libraries on mobile devices today.

What does this patent NOT cover?

Does not cover scrolling that does not use sublists or categorized metadata.

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Last reviewed: June 13, 2026 · PatentBrief is not a law firm and this is not legal advice.