Piezo Haptic Keyboard for Continuous User Identification
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Solution Overview
Problem
Current information handling systems face security challenges due to the inadequacy of single-step authentication methods, and the need for thinner, more lightweight keyboards in mobile devices, which are not effectively addressed by existing technologies.
Innovation Solution
A piezo haptic keyboard and touchpad system that records and utilizes unique user typing and touch behavior parameters for continuous authentication, integrating these parameters into a user's personal typing profile to securely authenticate and authorize access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional authentication methods are used, then the authentication process is simple, but the security level is insufficient
Solution Approach 1:
The system automatically captures typing dynamics and touchpad interaction parameters without user intervention, creating biometric profiles passively during normal device usage. This eliminates the need for users to manually enroll biometric data while maintaining high security through continuous authentication.
Solution Approach 2:
The patent replaces traditional mechanical authentication systems (keyboards and touchpads) with enhanced versions that incorporate piezoelectric sensors and capacitive touch detection. These modified input devices capture additional biometric data (typing force, rhythm, touch pressure) while maintaining their original mechanical functions, thus substituting simple authentication with multi-parameter biometric verification.
2Length of moving object
If piezo haptic keyboard technology is implemented, then the keyboard becomes thinner and more portable, but the manufacturing complexity increases
Solution Approach 1:
The patent combines multiple functions into a single integrated keyboard structure: the piezoelectric elements serve both as haptic feedback actuators and as sensors for capturing typing dynamics biometric data. Similarly, the touchpad integrates capacitive touch detection with pressure sensing. This merging reduces the need for separate components, thereby reducing overall keyboard thickness while managing manufacturing complexity through functional integration.
Solution Approach 2:
The piezoelectric elements in the keyboard serve multiple purposes: providing haptic feedback to users, detecting typing force and rhythm for biometric authentication, and enabling thinner keyboard design. This multi-functionality allows the same component to address multiple requirements simultaneously, reducing the need for additional parts and simplifying the overall manufacturing process despite the advanced technology involved.
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 enhanced security by passively and continuously verifying user identity through unique typing patterns, ensuring secure access to information handling systems while enabling a thinner, more portable keyboard design.
Implementation Method 1
A piezoelectric element may be situated between the contact foil and support layer to receive an applied mechanical stress at the actuation location of the input actuation device. The piezoelectric element may generate an electrical charge in response to the applied mechanical stress.
Data Source
AI summary
A piezo haptic keyboard and touchpad user identification system may comprise a processor receiving an authenticating user input identifying an authorized user of the information handling system, and a controller operably connected to a plurality of piezo electric elements situated beneath the keyboard. The controller may detect haptic hardware typing or touch behavior parameters describing characteristics of a plurality of deformations of the piezo electric elements during interaction between the authorized user and the keyboard, and the processor may use machine learning to identify a repeated pattern of values for a combination of the haptic hardware typing or touch behavior parameters reoccurring during interaction between the authorized user and keyboard. The processor may associate the repeated pattern of values for the combination of the haptic hardware typing or touch behavior parameters with the authorized user for later, passive authentication of a user based on typing dynamics.