Gesture-Based User Identifier Generation via Touchscreen Mapping

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Solution Overview

Problem

The challenge lies in facilitating user identification and authentication on portable devices, such as smartphones, where small key sizes on virtual keyboards lead to inaccuracies and increased complexity due to the need for capital letters and numerals, resulting in errors during username and password entry.

Innovation Solution

A method that intercepts identification requests and replaces traditional alphanumerical input with gesture-based inputs pre-associated with user identifiers in a database, allowing users to input gestures on a touch screen or via device orientation, which are mapped to alphanumerical identifiers, enhancing configurability and reducing errors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional keyboard input is used for user identification, then the interface is simple and familiar, but the small key size leads to input errors and reduced accuracy

Engineering Contradiction:
Improveinput accuracyVSAvoidoperation simplicity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent replaces the mechanical keyboard input system with a gesture-based input system using the touchscreen display. Users draw gestures on the screen instead of pressing physical or virtual keys, eliminating the accuracy problems associated with small key sizes while maintaining ease of operation through natural drawing motions.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a gesture recognition system as an intermediary between the user and the identification process. The gesture drawn on the touchscreen is captured and processed to retrieve the associated user identifier from a database, serving as a mediator that converts simple drawing actions into accurate identification input.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If passwords require capitals and numerals for security, then security is enhanced, but the number of selections increases and complexity rises

Engineering Contradiction:
ImprovesecurityVSAvoidinput complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent changes the parameter of input method from character-by-character typing to gesture-based selection. Instead of requiring users to input complex passwords with capitals and numerals, the system uses gesture patterns that can represent user identifiers, reducing input complexity while maintaining security through the gesture-to-identifier mapping in the database.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If virtual keyboard keys are made larger to improve accuracy, then input accuracy improves, but the available screen area is reduced and layout becomes constrained

Engineering Contradiction:
Improvekey selection accuracyVSAvoidscreen area
Core Design Contradiction:
Measurement precisionVSArea of stationary object

Solution Approach 1:

The patent transitions from a one-dimensional linear keyboard layout to a two-dimensional gesture drawing area on the touchscreen. Users can draw gestures across the entire screen area without being constrained by key sizes, allowing full utilization of the display area while maintaining high input accuracy through precise gesture recognition.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP2791853B1Gesture based generation of a user identifier
Publication Date: 2019.03.27 ORANGE SA
  • EP2791853B1 patent drawingFigure 1~4
  • EP2791853B1 patent drawingFigure 2a~2c

AI summary

The invention concerns a method for generating an identifier of a user for an application, the method being performed by a device of a user, the method comprising: - intercepting an identification request for an alphanumerical identifier from a first application; - providing a graphical user interface to invite the user to provide a gesture based input; - acquiring a first gesture based input from the user ; - using a database mapping gesture based inputs on alphanumerical identifiers to retrieve a first alphanumerical identifier based on the acquired first gesture based input; - in response to the identification request, providing the retrieved first alphanumerical identifier.