Directional Audio Driver Guidance Using Gaze and Head Pose

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional driver training methods face limitations such as visibility issues and distractions, making them less effective and accessible, particularly in environments like race tracks or complex road conditions.

Innovation Solution

A driver training system that utilizes directional audio cues, adjusting sound output based on the driver's gaze direction and head pose, providing real-time guidance and feedback to improve training effectiveness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional driver training methods (instructors, simulators, virtual reality) are used, then training can be provided, but visibility issues and distractions occur reducing effectiveness

Engineering Contradiction:
Improvetraining effectivenessVSAvoidvisibility issues and distractions
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces conventional mechanical training aids (instructors, simulators, virtual reality systems) with an audio-based training system that uses sound cues to guide driver behavior. This substitution eliminates the visibility issues and distractions associated with visual training aids while maintaining training effectiveness through auditory feedback.

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

Solution Approach 2:

The patent introduces audio cues as an intermediary between the training system and the driver. These audio cues serve as a mediator that communicates training information without causing the visibility issues and distractions inherent in conventional visual-based training methods.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If audio cues are provided continuously, then driver guidance is maintained, but driver distraction increases

Engineering Contradiction:
Improvedriver guidanceVSAvoiddriver distraction
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent implements periodic action by providing audio cues only when specific conditions are met (when the driver's gaze deviates from the expected direction). Rather than continuous audio output, the system activates audio cues selectively based on detected driver behavior, maintaining guidance while reducing unnecessary distraction.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent uses feedback mechanisms where the audio cue system continuously monitors driver gaze direction and provides corrective audio cues only when deviation from the expected direction is detected. This feedback-based approach ensures guidance is maintained when needed while minimizing distraction when the driver is already focused correctly.

Inventive Principle:
Principle #23Feedback

3Reliability

If directional audio system with gaze monitoring is implemented, then training effectiveness improves, but device complexity increases

Engineering Contradiction:
Improvetraining effectivenessVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by integrating multiple functions into a single system: the audio cue system serves both as training guidance and as a monitoring system that tracks driver gaze direction. This multi-functionality reduces the need for separate independent systems while maintaining improved training effectiveness.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12483847B2Directing a drivers gaze based on directional audio
Publication Date: 2025.11.25 TOYOTA JIDOSHA KK
  • US12483847B2 patent drawing
  • US12483847B2 patent drawing
  • US12483847B2 patent drawing

AI summary

A method for adjusting a direction of focus for a driver includes identifying a first direction of focus, of the driver of a vehicle, at a first time period in accordance with monitoring one or both of a gaze direction of the driver or a head pose of the driver. The method further includes generating audio from one or more speakers of a set of speakers located within a cabin of the vehicle based on identifying the first direction of focus, a spatial location of the audio corresponding to an expected direction of focus. The method also includes terminating the audio signal in accordance with a second direction of focus, at a second time period, being within a range of the expected direction of focus, the second direction of focus being determined based on the monitoring of one or both of the gaze direction or the head pose.