Biometric Sensor with Configurable Electrode Patterns for Adjustable Resolution
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Solution Overview
Problem
Conventional fingerprint sensors require different resolutions for various applications, leading to high manufacturing costs and limited usage, as they cannot be easily adapted for different requirements or used as touch foils.
Innovation Solution
A biometric detecting system with a sensor that divides signal lines and scan lines into groups to form electrode patterns, allowing for adjustable resolution by setting the number of consecutive lines, enabling simultaneous signal output and scanning, and reading electrical signals from these patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If different fingerprint sensors are designed for different applications requiring different resolutions, then the authentication accuracy is improved, but the manufacturing cost increases and device complexity increases
Solution Approach 1:
The patent implements a universal fingerprint sensor design that can operate at multiple resolutions by grouping signal lines and scan lines into electrode patterns. The sensor uses a single sensor structure with configurable grouping parameters (M, N, P, Q) that allow it to adapt to different authentication requirements without requiring multiple dedicated sensors for different applications.
Solution Approach 2:
The patent segments the signal lines and scan lines into groups to form electrode patterns. By dividing the signal lines into groups of M lines and scan lines into groups of N lines, the sensor creates multiple electrode patterns that can be configured to achieve different resolutions, allowing one sensor to serve multiple resolution requirements.
2Measurement precision
If different fingerprint sensors are designed for different applications requiring different resolutions, then the authentication accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent implements a universal fingerprint sensor design that can operate at multiple resolutions by grouping signal lines and scan lines into electrode patterns. The sensor uses a single sensor structure with configurable grouping parameters (M, N, P, Q) that allow it to adapt to different authentication requirements without requiring multiple dedicated sensors for different applications.
Solution Approach 2:
The patent introduces dynamic configurability through the grouping parameters (M, N, P, Q) that can be adjusted to change the sensor's resolution and electrode pattern configuration. This dynamic adjustment capability allows the same hardware to adapt to different authentication accuracy requirements without physical reconfiguration or multiple dedicated sensors.
3Ease of manufacture
If conventional fingerprint sensors are used with fixed resolution, then the manufacturing cost is reduced, but the adaptability to different applications is limited
Solution Approach 1:
The patent implements a universal fingerprint sensor design that can operate at multiple resolutions by grouping signal lines and scan lines into electrode patterns. The sensor uses a single sensor structure with configurable grouping parameters (M, N, P, Q) that allow it to adapt to different authentication requirements without requiring multiple dedicated sensors for different applications.
Solution Approach 2:
The patent introduces dynamic configurability through the grouping parameters (M, N, P, Q) that can be adjusted to change the sensor's resolution and electrode pattern configuration. This dynamic adjustment capability allows the same hardware to adapt to different authentication accuracy requirements without physical reconfiguration or multiple dedicated sensors.
4Device complexity
If conventional fingerprint sensors are used with fixed resolution, then the device complexity is reduced, but the adaptability to different applications is limited
Solution Approach 1:
The patent implements a universal fingerprint sensor design that can operate at multiple resolutions by grouping signal lines and scan lines into electrode patterns. The sensor uses a single sensor structure with configurable grouping parameters (M, N, P, Q) that allow it to adapt to different authentication requirements without requiring multiple dedicated sensors for different applications.
Solution Approach 2:
The patent introduces dynamic configurability through the grouping parameters (M, N, P, Q) that can be adjusted to change the sensor's resolution and electrode pattern configuration. This dynamic adjustment capability allows the same hardware to adapt to different authentication accuracy requirements without physical reconfiguration or multiple dedicated sensors.
Data Source
AI summary
A method for detecting a biometric feature of humans includes a steps of: dividing signal lines into a plurality of input groups each including a number m of consecutive ones of the signal lines; dividing scan lines into a plurality of output groups each including a number n of consecutive ones of the scan lines such that a plurality of electrode patterns are formed and each is formed by one of the input groups and one of the output groups; outputting a detecting signal to the input groups sequentially; scanning the output groups sequentially; and reading out a plurality of electrical signals respectively of the electrode patterns. The values of m and n can be adjusted to meet various resolution needs.