WHUD Optical ID Matching for Secure Spatial Communication

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Solution Overview

Problem

Existing wearable heads-up displays (WHUDs) lack efficient methods for secure and controlled communication with other devices, particularly in scenarios requiring spatial targeting and power-efficient optical transmissions.

Innovation Solution

A method and system for WHUDs that utilize optical transmissions, such as infrared (IR) pulsed binary-coded bursts, to exchange IDs with communicant devices, coupled with a match engine for authorization based on IDs, timestamps, and location data to enable secure and directed communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If optical transmissions are used for communication between WHUDs and other devices, then power efficiency is improved and spatial targeting capability is enhanced, but communication security and control mechanisms become more complex

Engineering Contradiction:
Improvepower efficiencyVSAvoidcommunication control mechanism
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The communication process is segmented into distinct phases: optical transmission for data exchange, separate authorization phase through match engine, and independent spatial targeting through directionality control. This segmentation allows each function to be optimized independently, maintaining power efficiency while managing complexity through modular architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A match engine is introduced as an intermediary component that handles authorization logic separately from the optical transmission system. This mediator receives identifiers from both devices, performs security checks, and authorizes communication without requiring complex integrated control mechanisms in the WHUD itself, thus reducing device complexity while maintaining security.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If optical transmissions with spatial targeting are implemented, then accidental connections are reduced, but device complexity and implementation difficulty increase

Engineering Contradiction:
Improveconnection accuracyVSAvoidspatial targeting system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The optical transmission system employs local quality by directing light along specific paths toward intended targets rather than omnidirectional transmission. This localized light direction creates natural spatial filtering where only devices in the specific optical path can receive signals, providing accidental connection protection through physical optics rather than complex electronic control mechanisms.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent replaces complex mechanical or electronic spatial filtering systems with simple optical directionality inherent in light transmission. By using the natural properties of light to provide spatial targeting, the system achieves high connection accuracy without requiring additional mechanical components or complex control algorithms.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If match engine authorization based on multiple parameters is used, then communication security is improved, but processing time and system complexity increase

Engineering Contradiction:
Improvecommunication securityVSAvoidauthorization processing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

Device identifiers are exchanged and stored in advance during the optical transmission phase before authorization is required. The match engine already has the necessary identifier data prepared when authorization is requested, eliminating the need for real-time complex parameter verification and reducing authorization processing time while maintaining security.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Facilitates secure, power-efficient, and spatially targeted communication between WHUDs and other devices, enhancing user control and reducing accidental connections.

Implementation Method 1

A communication module may include an optical transmitter to send optical transmissions and an optical receiver to receive optical transmissions from other devices

Methodology Applied
Scientific EffectOptical transmission: Light

Implementation Method 2

A communication module may include an optical transmitter to send optical transmissions and an optical receiver to receive optical transmissions from other devices

Methodology Applied
Scientific EffectOptical detection: Photoelectric Effect

Data Source

PatentUS12362827B2Communication methods and systems
Publication Date: 2025.07.15 GOOGLE LLC
  • US12362827B2 patent drawing
  • US12362827B2 patent drawing
  • US12362827B2 patent drawing

AI summary

There is provided a method including receiving an incoming ID at a first wearable heads-up display (WHUD), which incoming ID is associated with a communicant device. The method also includes sending match data from the first WHUD to a match engine. The match data includes a first WHUD ID and the incoming ID. Moreover, the method includes receiving a match indicator at the first WHUD from the match engine. The match indicator is to indicate a match event between the first WHUD and the communicant device based on the match data. Furthermore, the method includes effecting communication between the first WHUD and the communicant device comprising at least one of sending a message from the first WHUD to the communicant device and receiving at the first WHUD a corresponding message from the communicant device. The first WHUD, and a method of operating the match engine are also described.