Touch-Sequence Unlocking with Tactile Vibration Authentication

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Solution Overview

Problem

Existing unlocking methods for electronic devices, such as sliding over designated nodes, are vulnerable to observation, leading to potential leakage of unlocking gestures and compromised security.

Innovation Solution

An unlocking control method that generates vibration excitations based on retention time at target positions and uses piezoelectric assemblies to provide tactile feedback, ensuring the unlocking signal is determined by a sequence of touch inputs and vibration patterns, making it difficult to deduce the actual password even if the gesture is observed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a sliding operation is performed on a screen to unlock the electronic apparatus, then the unlocking operation is simple and fast, but the unlocking gesture can be observed and copied by others, compromising security

Engineering Contradiction:
Improveunlocking operation simplicityVSAvoidunlocking security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies mechanical vibration by generating vibration excitations at target positions during the unlocking process. The vibration pattern (frequency, duration, intensity) becomes part of the authentication signal, creating a tactile feedback mechanism that is difficult to observe or copy visually, thereby enhancing security while maintaining operational simplicity

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The system implements feedback by providing tactile vibration responses at specific target positions based on the touch input sequence. The vibration feedback creates a sensory loop where the user receives physical confirmation of correct interaction, making it harder for observers to replicate the unlocking gesture without experiencing the same tactile feedback

Inventive Principle:
Principle #23Feedback

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

Enhances security by making it impossible to directly unlock the device based on observed touch paths, improving safety and privacy protection.

Implementation Method 1

the electronic apparatus includes a plurality of piezoelectric assemblies, and the generating at least one vibration excitation in accordance with the retention time includes driving at least one of the plurality of piezoelectric assemblies to generate the at least one vibration excitation

Methodology Applied
Scientific EffectPiezoelectric effect: Piezoelectric Effect

Data Source

PatentUS12462008B2Unlocking control method and device, electronic apparatus, and computer-readable storage medium
Publication Date: 2025.11.04 BEIJING BOE TECH DEV CO LTD
  • US12462008B2 patent drawing
  • US12462008B2 patent drawing
  • US12462008B2 patent drawing

AI summary

The present disclosure provides an unlocking control method, an unlocking control device, an electronic apparatus, and a computer-readable storage medium. The unlocking control method for the electronic apparatus includes: obtaining an unlocking touch input; in the case that a retention time of the unlocking touch input at any one of a plurality of target positions is greater than a predetermined time threshold, generating at least one vibration excitation in accordance with the retention time; and in the case that an unlocking control signal determined in accordance with the unlocking touch input matches a predetermined unlocking password, controlling the electronic apparatus to be unlocked. The unlocking control signal includes a touch sequence of the unlocking touch input with respect to the plurality of target positions and the quantity of vibration excitations generated at each target position.