Multi-Touch Input Method for Mobile Terminal Function Control

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Solution Overview

Problem

Mobile terminals face challenges in allocating sufficient space for user interfaces like displays and keypads without compromising mobility and portability, necessitating innovative data input methods to effectively control complex functions.

Innovation Solution

The implementation of multi-touch input methods that allow for various operations on mobile terminals, such as selecting items, switching between modes, and performing multimedia playback controls, by detecting simultaneous touch inputs on different regions of the screen, enabling efficient control of functions like camera modes, document editing, and multimedia playback.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If mobile terminals are equipped with various complicated functions and UI elements, then functionality and service diversity are improved, but device portability and mobility are worsened due to increased space requirements

Engineering Contradiction:

ImprovefunctionalityVSAvoiddevice size

Core Design Contradiction:

Adaptability or versatilityVSLength of moving object

Solution Approach 1:

The patent transitions from single-touch to multi-touch input, adding a dimensional aspect to user interaction. By detecting multiple touch points simultaneously on the touchscreen, the system enables more functions to be controlled within the same physical space, resolving the contradiction between functionality and device size.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of operation

If more UI elements like displays and keypads are allocated, then user interface capability is improved, but device portability is worsened

Engineering Contradiction:

Improveuser interface capabilityVSAvoiddevice size

Core Design Contradiction:

Ease of operationVSLength of moving object

Solution Approach 1:

The touchscreen serves multiple functions: it acts as both display and input device, and through multi-touch gestures, it replaces traditional keypads and other input mechanisms. This universal use of the touchscreen improves UI capability without adding physical components that would increase device size.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Device complexity

If single-touch input methods are used, then device simplicity is maintained, but control capability for complex functions is insufficient

Engineering Contradiction:

Improveinput method simplicityVSAvoidcontrol capability

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The system dynamically adapts its response based on the number and position of touch points detected. Different gestures (single-finger swipe, two-finger pinch, etc.) trigger different functions, allowing the simple touchscreen interface to control complex multimedia and document functions without increasing physical device complexity.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP2393000B1Mobile terminal capable of providing multiplayer game and method of controlling operation of the mobile terminal

Publication Date: 2019.08.07 LG ELECTRONICS INC

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AI summary

A method of controlling a mobile terminal and which includes allowing, via a wireless communication of the mobile terminal, wireless communication with at least one other terminal; displaying, via a touch screen display unit of the mobile terminal, a display screen; receiving, via a controller of the mobile terminal, a first touch input on the display screen and a second touch input on the display screen while the first touch input is touching the display screen; and executing, via the controller, a preset function based on the received first and second touch inputs.