Flexible Biosignal Sensing Module With Deformation Calibration

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Solution Overview

Problem

Sensors integrated into flexible substrates for detecting bio-signals face accuracy issues due to irregularities in contact surfaces leading to distortion or movement, compromising the sensor's performance.

Innovation Solution

A flexible sensing module with a first sensing element for detecting bio-signals and a second sensing element for detecting deformation, coupled with a processing element that calibrates bio-signals based on deformation signals to maintain accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If sensors are integrated into flexible substrates for better contact with users' skin, then adaptability is improved, but measurement precision deteriorates due to distortion or movement at the sensing site

Engineering Contradiction:

Improvecontact adaptabilityVSAvoidbio-signal detection accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The sensing module is segmented into multiple functional layers including a flexible substrate, optical sensing elements, and deformation sensing elements. This segmentation allows each layer to perform its specific function while working together to solve the contradiction between flexibility and measurement precision

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The deformation sensing elements detect changes in the flexible substrate's shape and provide feedback signals to a processing unit. The processing unit uses this feedback to compensate for measurement errors in the bio-signal detection, thereby maintaining measurement precision even when the substrate deforms to adapt to skin contours

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20260026693A1Flexible sensing module

Publication Date: 2026.01.29 ADVANCED SEMICON ENG INC

AI summary

The present disclosure relates to a sensing module and a flexible sensing module. The flexible sensing module includes a first sensing element configured to detect a bio-signal of a surface of a user; a second sensing element configured to detect a deformation of the flexible sensing module and to generate a first signal; and a processing element configured to calibrate the bio-signal in response to the first signal.