Touchscreen Input via Graphical Item Coupling

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Solution Overview

Problem

Traditional user input methods for electronic devices, such as keypads, are often inconvenient and inefficient, requiring multiple key presses to access and enable functions, especially on devices with hierarchical menu structures.

Innovation Solution

A method and device utilizing a touch sensitive display that allows users to control the device by coupling graphical items with a trace on the screen, where each item has an identity, enabling actions based on the coupled items, allowing for single-input operation and easy access to multiple functions without scrolling through menus.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a keypad is used for user input, then the device can be controlled, but it requires multiple key presses and is inconvenient for accessing functions

Engineering Contradiction:
Improveease of operationVSAvoidtime to access functions
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent replaces the mechanical keypad system with a touch-sensitive display system. Instead of pressing physical keys to navigate hierarchical menus, users interact with graphical items on a touch screen, eliminating the mechanical input method and enabling more efficient function access through direct touch interaction.

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

Solution Approach 2:

The patent transitions from one-dimensional linear keypress sequencing to two-dimensional spatial relationships on the display. Users can visually perceive and directly select functions through their spatial arrangement on the touchscreen, eliminating the need to scroll through hierarchical menu structures and reducing the time required to access functions.

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

2Adaptability or versatility

If a hierarchical menu structure is used, then functions can be organized, but it requires several key presses to access and enable chosen functions

Engineering Contradiction:
Improvefunction organizationVSAvoidspeed of function access
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent segments functions into distinct graphical items displayed on the touchscreen, each representing a specific function or option. This segmentation allows users to visually identify and directly select desired functions without navigating through hierarchical menus, significantly improving the speed of function access while maintaining organized function presentation.

Inventive Principle:
Principle #1Segmentation

3Productivity

If multiple graphical items are displayed simultaneously, then functions can be accessed without scrolling, but the display complexity increases

Engineering Contradiction:
Improvespeed of function accessVSAvoiddisplay complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements a universal touch-sensitive display interface that can handle multiple graphical items simultaneously. The display system is designed to present multiple function options at once, allowing users to access functions without scrolling through menus, thereby improving productivity while the system manages display complexity through efficient rendering and interaction handling.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS7728818B2Method, device computer program and graphical user interface for user input of an electronic device
Publication Date: 2010.06.01 NOKIA TECHNOLOGIES OY
  • US7728818B2 patent drawing
  • US7728818B2 patent drawing
  • US7728818B2 patent drawing

AI summary

A method of controlling an electronic device including a touch sensitive display the method including displaying a plurality of graphical items on the touch sensitive display where each graphical item has an identity; detecting a coupling, formed by a user, of at least two graphical items, the coupling including, a trace on the touch sensitive display between the at least two graphical items; and, performing an action dependent upon the identity of the coupled graphical items.