Audio-Synced Tactile Output Control for Low-Power Haptic Playback

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Solution Overview

Problem

Existing methods for providing haptic feedback in electronic devices are inefficient and cumbersome, particularly for users with impairments, and consume excessive energy, leading to suboptimal user interaction and device efficiency.

Innovation Solution

Implementing improved methods and interfaces that utilize tactile outputs, often combined with visual and audio feedback, to enhance user interaction and reduce input requirements, thereby improving the operability and efficiency of electronic devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If tactile outputs are provided in combination with visual and/or audio feedback, then user perception and interface efficiency are improved, but device complexity and energy consumption increase

Engineering Contradiction:

Improveuser perceptionVSAvoidenergy consumption

Core Design Contradiction:

Ease of operationVSUse of energy by moving object

Solution Approach 1:

The system employs periodic or pulsed tactile feedback rather than continuous output, activating haptic generators only at specific moments when feedback is needed (e.g., during media playback events or UI interactions). This reduces overall energy consumption while maintaining effective user perception when required.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The tactile output generators are integrated into the existing device architecture alongside visual and audio systems, serving multiple functions: providing haptic feedback for media playback, UI interactions, and alert conditions. This multi-functionality reduces the need for separate dedicated components, managing device complexity while enhancing user perception.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If tactile outputs are provided for alert conditions, then alert recognition is improved, but energy consumption increases

Engineering Contradiction:

Improvealert recognitionVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system intelligently determines when tactile feedback is necessary based on the nature of the alert condition and current device state. Tactile outputs are provided selectively for certain alert conditions (e.g., urgent notifications) while omitting them for others, allowing the system to self-regulate energy consumption based on actual communication needs.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Different tactile feedback characteristics are applied to different alert conditions based on their urgency and importance. The system varies the intensity, duration, and pattern of tactile outputs according to the specific alert type, providing enhanced recognition for critical alerts while conserving energy for less important notifications.

Inventive Principle:

Principle #3Local quality

3Ease of operation

If multiple feedback modalities (visual, audio, tactile) are used, then user satisfaction is improved, but device complexity increases

Engineering Contradiction:

Improveuser satisfactionVSAvoidinterface complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The system integrates tactile output generation into the existing media playback and UI framework, combining haptic feedback with visual and audio modalities through a unified control architecture. This merging approach allows multiple feedback types to be coordinated through shared control logic, reducing overall system complexity despite the addition of tactile capabilities.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The system employs coordinated feedback across multiple modalities where tactile, visual, and audio outputs work together to provide comprehensive user information. The feedback mechanisms are synchronized and interlinked, allowing the system to convey information more effectively through complementary channels rather than independent systems, thereby managing complexity.

Inventive Principle:

Principle #23Feedback

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

The proposed methods and interfaces increase user satisfaction and device efficiency by providing intuitive and efficient haptic feedback, reducing input errors, and conserving power in battery-operated devices.

Implementation Method 1

generating a tactile output on the touch-sensitive surface in response to the detected gesture

Methodology Applied

Scientific EffectVibration: Vibration

Data Source

PatentUS20250348149A1Devices, Methods, and Graphical User Interfaces for Generating Tactile Outputs

Publication Date: 2025.11.13 APPLE INC

AI summary

A computer system outputs audio content of media being played via a media player application. While outputting the audio content without outputting tactile outputs corresponding to the audio content, the computer system displays a tactile output control, and detect, via the one or more input devices, a first input activating the tactile output control. In response to detecting the first input activating the tactile output control, the computer system outputs a sequence of tactile outputs corresponding to a plurality of audio features of the audio content that are being output in conjunction with the sequence of tactile outputs.