Communication Device with Nested Piezoelectric Biometric Sensing
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Solution Overview
Problem
Existing portable user devices and magnetic cards face challenges in environmental durability and require multiple devices for various functions, lacking seamless integration and secure transaction capabilities.
Innovation Solution
A communication device with biometric sensing capabilities, incorporating a display and piezoelectric material for data interaction, enabling secure transactions and multifunctionality, including RFID tag tracking and legacy reader compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate devices are used for different functions (magnetic cards, portable user devices), then each device can be optimized for its specific function, but the overall system complexity increases and environmental durability decreases
Solution Approach 1:
The patent combines multiple previously separate functions (magnetic card reading, RFID communication, display output, and biometric sensing) into a single integrated communication device. The device includes a magnetic stripe reader, RFID tag reader/writer, display device, and biometric sensor all within one unit, eliminating the need for multiple separate devices and improving environmental durability.
Solution Approach 2:
The communication device is designed as a universal device that can perform multiple functions: reading magnetic stripe data, communicating with RFID tags, displaying information, and sensing biometric characteristics. This multi-functional design reduces system complexity while maintaining adaptability across different use cases.
2Reliability
If magnetic cards and portable devices are used separately, then each can maintain its simple structure, but secure transaction capabilities and seamless integration are lacking
Solution Approach 1:
The patent integrates multiple security and communication functions into one device, including magnetic stripe reading, RFID communication, and biometric sensing. This integration enhances transaction security by combining multiple verification methods while managing complexity through unified system architecture.
Solution Approach 2:
The communication device acts as an intermediary between users, magnetic cards, RFID tags, and transaction systems. It coordinates data flow and verification processes across different communication protocols, ensuring secure transactions while simplifying the interaction complexity for end users.
3Ease of manufacture
If the piezoelectric material is positioned below the display pixels, then the display can show images through the exterior surface, but the biometric sensing capability requires precise positioning to receive reflected data
Solution Approach 1:
The piezoelectric material is positioned below the display light emitting output pixels, creating a nested arrangement where the sensing element is embedded within the display structure. This nested configuration allows the biometric sensor to function through the exterior surface while maintaining compact integration, reducing manufacturing precision requirements compared to separate positioning.
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
Provides a robust, single-device solution for secure transactions and diverse functionalities, enhancing environmental durability and reducing device redundancy.
Implementation Method 1
a piezoelectric material positioned below the layer of display light emitting output pixels. The piezoelectric material is configured to provide an output in a direction through the exterior surface toward the finger, and to receive data corresponding to the output reflected from the finger
Data Source
AI summary
A communication device for sensing one or more biometric characteristics of a user. The device includes a cover structure, a layer of output pixel elements, a layer of biometric input pixel elements, and a processor. The cover structure includes an exterior surface. The layer of output pixel elements is positioned below the exterior surface and configured to provide an output through the exterior surface toward the user. The output pixel elements being at least one of light emitting pixel elements and piezoelectric-out pixel elements. The layer of biometric input pixel elements is positioned below the exterior surface to receive a reflected biometric input passing from the user through the exterior surface. The biometric input pixel elements being at least one of light detecting and piezoelectric-in pixel elements. The processor is connected to the biometric input pixel elements to process the reflected biometric input.