Integrated Biologic Signal Processing Apparatus
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Solution Overview
Problem
Conventional devices require multiple filters and components to measure various biologic signals, leading to increased power consumption, manufacturing costs, and difficulty in miniaturization, as they are limited to measuring a single type of bio signal at a time.
Innovation Solution
An apparatus and method that integrate multiple biologic signal processing using a single device, featuring a first signal processing module to generate and pre-process signals from sensor groups, and a second module to authenticate and set processing conditions for each sensor group, allowing for simultaneous measurement and analysis of multiple bio signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple filters are used to measure various biologic signals, then measurement versatility is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent implements a single filter that can operate across multiple frequency bands (e.g., 0.05-150 Hz for ECG, 1-100 Hz for EEG, 10-200 Hz for EMG) by dynamically adjusting its cutoff frequencies based on the selected bio signal type. This universal filter replaces multiple dedicated filters, reducing device complexity while maintaining the ability to measure various biologic signals including ECG, EEG, EMG, and impedance signals
2Adaptability or versatility
If multiple filters are used to measure various biologic signals, then measurement versatility is improved, but power consumption increases
Solution Approach 1:
The patent employs a single reconfigurable filter instead of multiple simultaneous filters, allowing the system to measure different bio signals (ECG, EEG, EMG, impedance) by adjusting filter parameters through software control. This approach consumes power for only one active filter at a time rather than powering multiple filters simultaneously, significantly reducing overall power consumption while maintaining full measurement versatility
3Adaptability or versatility
If multiple filters are used to measure various biologic signals, then measurement versatility is improved, but manufacturing costs increase
Solution Approach 1:
The patent designs a single filter circuit with programmable cutoff frequencies that can be configured through software to match different bio signal requirements. This eliminates the need to manufacture and assemble multiple separate filter circuits, reducing component count, assembly complexity, and manufacturing costs while maintaining the capability to measure ECG, EEG, EMG, and other biologic signals
4Adaptability or versatility
If multiple filters are used to measure various biologic signals, then measurement versatility is improved, but miniaturization becomes difficult
Solution Approach 1:
The patent implements a single reconfigurable filter module that can be integrated into a compact circuit design. By replacing multiple discrete filter circuits with one programmable filter, the overall device footprint is reduced, enabling miniaturization while maintaining the versatility to measure various biologic signals through software-based frequency band adjustment
5Measurement precision
If impedance measurement is performed with additional constant current, then measurement accuracy is improved, but device complexity increases
Solution Approach 1:
The patent combines the impedance measurement function with the existing bio signal measurement circuitry by using the same filter and signal processing components. The constant current for impedance measurement is generated within the existing circuit, and the filter processes both bio potential signals and impedance signals through the same pathway, eliminating the need for separate dedicated components and simplifying the overall measurement process
Data Source
AI summary
An apparatus for integrally processing a plurality of biologic signals includes a first signal processing module and a second signal processing module. The first processing module generates a signal for operating a sensing module, which includes a plurality of sensor groups which measures the plurality of biologic signals, and which processes a biologic signal provided from the plurality of sensor groups based on a control signal. The second signal processing module authenticates a sensor group from among the plurality of sensor groups, generates the control signal according to a result of the authentication while automatically setting a processing condition, processes the biologic signal provided from the first signal processing module according to the processing condition and outputs a result of processing the biologic signal.