Earphone Noise Cancellation Parameter Coordination

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Solution Overview

Problem

Existing earphones suffer from significant differences in noise cancellation effects between the left and right earphones, leading to a negative user experience due to disparities in noise cancellation performance.

Innovation Solution

A method is introduced where the noise cancellation parameters of at least one earphone are adjusted based on the noise cancellation amounts of both earphones, ensuring that the difference in noise cancellation effects between the two earphones is minimized.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If each earphone independently selects noise cancellation parameters to achieve optimal noise cancellation effect, then the noise cancellation effect of each earphone is maximized, but the difference in noise cancellation effects between left and right earphones becomes significant

Engineering Contradiction:

Improvenoise cancellation effectVSAvoiduser experience consistency

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent merges the independent noise cancellation parameter selection of left and right earphones into a unified coordinated adjustment process. The processing device receives noise cancellation amounts from both earphones, compares them, and coordinates parameter adjustments to ensure both earphones achieve optimal or near-optimal noise cancellation effects while maintaining consistency between them.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent implements a feedback mechanism where the processing device receives noise cancellation amounts from both earphones, compares the difference, and uses this feedback to determine whether parameter adjustment is needed. This closed-loop feedback ensures that noise cancellation effects remain consistent between left and right earphones while maintaining high performance.

Inventive Principle:

Principle #23Feedback

2Ease of operation

If noise cancellation parameters are adjusted to reduce the difference between left and right earphones, then user experience consistency is improved, but the optimal noise cancellation effect of individual earphones may be compromised

Engineering Contradiction:

Improveuser experience consistencyVSAvoidnoise cancellation effect

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent uses parameter changes to resolve the contradiction by adjusting noise cancellation parameters based on the comparison of noise cancellation amounts from both earphones. The processing device determines whether parameter adjustment is needed by comparing the difference between left and right earphone performance, and only adjusts parameters when necessary to maintain both consistency and optimality.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent applies partial action by not always adjusting parameters - only when the noise cancellation amount difference exceeds a threshold. This avoids unnecessary adjustments that could compromise optimal performance while still ensuring consistency when needed.

Inventive Principle:

Principle #16Partial or excessive action

3Ease of operation

If noise cancellation parameters are frequently adjusted to maintain consistency, then the difference in noise cancellation effects is minimized, but the complexity of the control system increases

Engineering Contradiction:

Improvenoise cancellation consistencyVSAvoidcontrol system complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent implements self-service by enabling each earphone to autonomously measure its own noise cancellation amount using its microphone and processor. This eliminates the need for complex external measurement equipment and simplifies the control system while maintaining consistency through automated feedback comparison.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent simplifies control complexity by using clear parameter change thresholds - when the noise cancellation amount difference exceeds a preset threshold, parameter adjustment is triggered. This simple threshold-based control mechanism avoids complex algorithms while effectively maintaining consistency.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250054483A1Noise cancellation method, device and apparatus and computer readable storage medium for earphones

Publication Date: 2025.02.13 GEER TECH CO LTD

AI summary

The present disclosure discloses an earphone noise cancellation method, device, apparatus and a non-transitory computer readable storage medium, wherein the method comprises: receiving a second noise cancellation amount of a second earphone corresponding to the first earphone, if a first noise cancellation amount of the first earphone meets a preset noise cancellation condition, obtaining a first noise cancellation difference value between the first noise cancellation amount and the second noise cancellation amount; and adjusting a noise cancellation parameter of at least one selected from a group consisting of the first earphone and the second earphone based on the first noise cancellation amount and the second noise cancellation amount, if the first noise cancellation difference value is greater than a preset difference.