Using a Phone Display as a Visual Beacon Based on Activity
Apple's patent describes a device that changes its screen lighting behavior, such as pulsing or strobing, based on a user's heart rate or body temperature.
Original patent title: “Handheld devices as visual indicators”
Apple's patent describes a device that changes its screen lighting behavior, such as pulsing or strobing, based on a user's heart rate or body temperature. Granted to Apple Inc in 2021 with 20 claims.
Key facts
Coverage
What does this patent actually cover?
The device uses internal sensors to track physiological data like heart rate or temperature. When these metrics cross a specific threshold, the processor triggers a beacon light effect on the display, such as blinking, pulsating, or strobing. When the user is at rest, the display reverts to standard illumination for the graphical user interface. The system also integrates with media playback, allowing the screen's light patterns to sync with music or user-selected playlists.
The gap
What does this patent NOT cover?
- Does not cover standard screen brightness adjustments based solely on ambient light.
- Does not cover using external LED lights or flash units for signaling; it is specific to the display screen itself.
- Does not cover health monitoring that lacks the specific trigger of changing the display's light mode based on a threshold.
- Does not cover non-visual feedback mechanisms like haptic vibrations or audio alerts.
These exclusions are unique to PatentBrief — derived from the actual claim language, not patent-office boilerplate.
What made this novel
It repurposes the primary display—usually a power-hungry component designed for viewing content—as a secondary, low-bandwidth communication tool that uses light patterns to broadcast the user's physical state.
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
Apple Watch workout modes
Fitness trackers with heart rate monitoring
Smartphones with adaptive display lighting
Why it matters
The bigger picture
This patent suggests a future where personal devices act as active visual indicators for safety or social signaling. It is particularly relevant for the wearable technology market, where devices like the Apple Watch or fitness trackers could communicate a user's status to others, such as during a workout or in an emergency.
Filed
April 8, 2020
Granted
November 30, 2021
Market context
Who's building on this
Companies in this space
Apple remains the primary entity developing this technology, integrating it into their ecosystem of wearables and mobile devices. Other major players in the fitness tracker space, such as Garmin and Samsung, are also exploring similar ways to use display feedback to communicate user health status.
Market impact
This patent formalizes the integration of physiological data with display hardware, potentially creating a new class of 'socially aware' wearables. It helps protect Apple's ability to create unique, light-based visual cues that differentiate their hardware in a crowded fitness-tracking market.
Claim 1 — Plain English
What this patent covers
The device uses internal sensors to track physiological data like heart rate or temperature. When these metrics cross a specific threshold, the processor triggers a beacon light effect on the display, such as blinking, pulsating, or strobing. When the user is at rest, the display reverts to standard illumination for the graphical user interface. The system also integrates with media playback, allowing the screen's light patterns to sync with music or user-selected playlists.
The clever bit
It repurposes the primary display—usually a power-hungry component designed for viewing content—as a secondary, low-bandwidth communication tool that uses light patterns to broadcast the user's physical state.
What it does not cover
- Does not cover standard screen brightness adjustments based solely on ambient light.
- Does not cover using external LED lights or flash units for signaling; it is specific to the display screen itself.
- Does not cover health monitoring that lacks the specific trigger of changing the display's light mode based on a threshold.
- Does not cover non-visual feedback mechanisms like haptic vibrations or audio alerts.
Patent timeline
Application submitted to the patent office
Application published, typically 18 months after filing
Patent officially issued
PatentBrief Score
Impact Score
Moderate
Citation count
0/40
No citations yet
Claim breadth
13/20
Broad claimsclaimsThe numbered statements at the end of a patent that legally define what the inventor owns.Read more →
Recency
20/20
Granted within 5 years
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
$44K – $140K
Midpoint $88K · 13.8 yr remaining · industry ×1.5
Heuristic only — blends forward/backward citation counts, claim scope, time remaining, litigation history, and CPC-derived industry baseline. Real valuations need a professional appraisal.
The original legal language
Original claims
20 claims as filed with the patent office.
Concepts involved
Citations
Patent lineage
Cite this patent
Whang, E. A. (2021). Using a Phone Display as a Visual Beacon Based on Activity (U.S. Patent No. 11,188,196). U.S. Patent and Trademark Office. https://patentbrief.org/patent/us/11188196/app-library
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 Using a Phone Display as a Visual Beacon Based on Activity cover?
Apple's patent describes a device that changes its screen lighting behavior, such as pulsing or strobing, based on a user's heart rate or body temperature.
Who owns patent US 11188196?
Apple Inc owns this patent, granted in 2021.
When does this patent expire?
This patent is expected to expire on November 30, 2041, when the invention enters the public domain.
What problem does this patent solve?
This patent suggests a future where personal devices act as active visual indicators for safety or social signaling. It is particularly relevant for the wearable technology market, where devices like the Apple Watch or fitness trackers could communicate a user's status to others, such as during a workout or in an emergency.
What does this patent NOT cover?
Does not cover standard screen brightness adjustments based solely on ambient light.
Same assignee
More from Apple Inc
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