Skip to content
PatentBrief
Get alertsTop ↑

Using Millimeter Waves to Map Your Surroundings for Better Location

This patent describes a way for a mobile device to use millimeter wave signals to understand its environment and pinpoint its location by analyzing how those signals bounce off surfaces.

ActiveExpires 2043Owned by New York University NYUInvented by Theodore S. Rappaport

Original patent title: “System, method and computer-accessible medium for real time imaging using a portable device”

Plain-English explanation by SahiLast reviewed · September 29, 2026

This patent describes a way for a mobile device to use millimeter wave signals to understand its environment and pinpoint its location by analyzing how those signals bounce off surfaces. Owned by New York University NYU with 22 claims and 2 forward citations, and it is expected to expire in 2043.

Coverage

What does this patent actually cover?

This invention uses millimeter wave (mmWave) radio frequency signals to create a map and determine a device's location. A transmitting device sends out these signals, which then bounce off surfaces like walls or furniture, creating 'multipath components.' The device receives these bounced signals and analyzes information from them, such as the angle they arrived (AoA) or when they arrived (time of arrival). Using this data, along with a stored map, a ray tracing process calculates the device's precise location. It can then generate images or video of the surroundings, potentially showing other objects in the environment. For example, a phone could use this to show a user exactly where they are in a large building or to highlight obstacles.

The gap

What does this patent NOT cover?

  • Methods that do not use millimeter wave (mmWave) radio frequency signals.
  • Systems that do not analyze multipath components of the RF signal.
  • Methods that do not determine at least two pieces of information like AoA, AoD, time of arrival, RTA, or phase.
  • Techniques that do not use a stored 2D or 3D map of the environment.
  • Processes that do not employ a ray tracing calculation to determine location.

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

Key facts

Patent numberUS 20230213647
StatusActive
FieldTelecom & Wireless
AssigneeNew York University NYU
InventorTheodore S. Rappaport
Filed2023
Expires2043
Claims22
Times cited2
LitigationNone on record
Value · $70K–$225KModest

What made this novel

The innovation lies in combining mmWave signal analysis with existing map data and ray tracing. This allows for precise localization by understanding how the signals interact with the physical environment, rather than relying solely on satellite signals which fail indoors.

The Patent Drawing

Representative patent drawing for System, method and computer-accessible medium for real time imaging using a portable device (US 20230213647)
Representative figure · US 20230213647All figures on Google Patents →
System, method and computer-ac…(Primary claim)telecommunicationsconsumer electronicssoftwaresemiconductors

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

Advanced indoor navigation systems

02

Augmented reality applications requiring precise spatial awareness

03

Robotics and autonomous systems needing environmental mapping

04

Smartphones with enhanced location services

Why it matters

The bigger picture

Accurate indoor positioning is a long-standing challenge. This technology offers a potential solution by leveraging readily available millimeter wave frequencies, which are key to modern high-speed wireless communication like 5G. It could enable new location-aware applications and improve existing ones that struggle with GPS indoors.

Filed

March 10, 2023

Market context

Who's building on this

Companies in this space

Companies involved in 5G infrastructure and device development, as well as those creating advanced spatial computing and augmented reality platforms, are likely exploring similar mmWave positioning technologies. This includes major telecommunications equipment providers and smartphone manufacturers.

Market impact

If successfully implemented, this technology could significantly enhance indoor location services, moving beyond the limitations of GPS. It could spur the development of new applications in retail, logistics, and personal navigation, creating a more seamless integration of digital information with the physical world.

Claim 1 — Plain English

What this patent covers

This invention uses millimeter wave (mmWave) radio frequency signals to create a map and determine a device's location. A transmitting device sends out these signals, which then bounce off surfaces like walls or furniture, creating 'multipath components.' The device receives these bounced signals and analyzes information from them, such as the angle they arrived (AoA) or when they arrived (time of arrival). Using this data, along with a stored map, a ray tracing process calculates the device's precise location. It can then generate images or video of the surroundings, potentially showing other objects in the environment. For example, a phone could use this to show a user exactly where they are in a large building or to highlight obstacles.

The clever bit

The innovation lies in combining mmWave signal analysis with existing map data and ray tracing. This allows for precise localization by understanding how the signals interact with the physical environment, rather than relying solely on satellite signals which fail indoors.

What it does not cover

  • Methods that do not use millimeter wave (mmWave) radio frequency signals.
  • Systems that do not analyze multipath components of the RF signal.
  • Methods that do not determine at least two pieces of information like AoA, AoD, time of arrival, RTA, or phase.
  • Techniques that do not use a stored 2D or 3D map of the environment.
  • Processes that do not employ a ray tracing calculation to determine location.

Patent timeline

Filing

Application submitted to the patent office

Expiration

Patent enters public domain

PatentBrief Score

Impact Score

Early stage

Citation count

10/40

Early citations

Claim breadth

15/20

Broad claimsclaimsThe numbered statements at the end of a patent that legally define what the inventor owns.Read more →

Recency

0/20

Older than 20 years

Assignee scale

0/20

Independent or smaller assigneeassigneeThe entity that owns the patent — usually the inventor's employer or a company.Read more →

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

$70K – $225K

Midpoint $140K · 16.4 yr remaining · industry ×1.5

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

22 claims as filed with the patent office.

Concepts involved

ClaimPrior artNon-obviousnessNoveltySpecificationAssigneePatent term

Citations

Patent lineage

Cites earlier patents

9

earlier patents this invention cites as foundations

View prior art →

Cited by later patents

2

later patents that build on this invention

View patents →

Cite this patent

Rappaport, T. S. Using Millimeter Waves to Map Your Surroundings for Better Location (U.S. Patent No. 20,230,213,647). U.S. Patent and Trademark Office. https://patentbrief.org/patent/us/20230213647/system-method-and-computer-accessible-medium-for-real-time-imaging-using-a-porta

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

Embed

Add this patent to your site

Drop this plain-English patent card into any blog post or article — free, no signup. It always links back to the full breakdown here.

<div data-patentlens-widget data-patent-number="US20230213647"></div>
<script src="https://patentbrief.org/embed.js" async></script>

Stay in the loop

Get a weekly digest of new patents.

One email per week. No spam. Unsubscribe anytime.

Keep exploring

Related patents you should know

US 4683195 · 1987

How to Make Billions of Copies of a DNA Segment

This patent describes the Polymerase Chain Reaction (PCR), a method to rapidly create many copies of a specific piece of DNA or RNA, enabling its detection and analysis.

Cetus Corp

US 8697359 · 2014

How to Edit Genes in Human Cells Using an Engineered CRISPR System

This patent describes an engineered CRISPR-Cas9 system for precisely cutting DNA in eukaryotic cells to change how genes work, opening the door for gene editing in complex organisms.

Massachusetts Institute of Technology

US 7657849 · 2010

How the iPhone's Slide-to-Unlock Gesture Works

Apple's 2010 patent describes unlocking a device by dragging a specific graphical image across the touchscreen along a predefined path, a gesture that became iconic with the original iPhone.

Apple Inc

US 4733665 · 1988

How Doctors Implant a Permanent Stent Using a Balloon

This patent describes the method for placing a permanent, expandable wire mesh tube inside a blood vessel or other body tube using a balloon-tipped catheter to widen it and keep it open.

Expandable Grafts Partnership

US 4965188 · 1990

How to Make Many Copies of a DNA Piece with Heat

This patent describes the Polymerase Chain Reaction (PCR) method, a technique to make millions of copies of a specific DNA segment using a heat-resistant enzyme and repeated temperature changes.

Cetus Corp

US 4235871 · 1980

How to Encapsulate Active Materials in Lipid Bubbles Efficiently

This patent describes a method for trapping biologically active substances inside tiny, multi-layered fat bubbles called liposomes, using a specific water-in-oil emulsion and gel-forming process to improve how much material gets captured.

Individual

Semantically similar

You might also find these interesting

SEARCH ALL

More to explore

More in Telecom & Wireless

Browse all Telecom & Wireless

New to patents?

What is a patent?How to read a patentAnatomy of a claimHow strong is this patent?What the citations meanWhat it doesn't coverWireless & Telecom PatentsPatent glossary
Explore the landscape:telecommunications patents →consumer electronics patents →software patents →

Common Questions

Frequently Asked Questions

What does Using Millimeter Waves to Map Your Surroundings for Better Location cover?

This patent describes a way for a mobile device to use millimeter wave signals to understand its environment and pinpoint its location by analyzing how those signals bounce off surfaces.

Who owns patent US 20230213647?

This patent is owned by New York University NYU.

When does this patent expire?

This patent is expected to expire on March 10, 2043, when the invention enters the public domain.

What is patent US 20230213647 cited by?

This patent has been cited by 2 later patents that build on its ideas.

What problem does this patent solve?

Accurate indoor positioning is a long-standing challenge. This technology offers a potential solution by leveraging readily available millimeter wave frequencies, which are key to modern high-speed wireless communication like 5G. It could enable new location-aware applications and improve existing ones that struggle with GPS indoors.

What does this patent NOT cover?

Methods that do not use millimeter wave (mmWave) radio frequency signals.

Patent monitoring

Get notified when New York University NYU files a new patent

Get notified when this company files a new patent. Weekly digest · Confirm via email · Unsubscribe anytime.

Last reviewed: September 29, 2026 · PatentBrief is not a law firm and this is not legal advice.