Portable Terminal Image Distortion for User Interface Feedback

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Solution Overview

Problem

As portable terminal functions become more complex, users, especially the middle-aged and prime-aged, find it difficult to understand the results of their free-hand inputs on touch screens, necessitating a technology that simplifies the interpretation of user operations.

Innovation Solution

A user interfacing method and apparatus for portable terminals that uses a pointing device to distort and remove the current image around the pointing position, displaying a resultant image to facilitate easy understanding of user operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If free-hand writing input is used on a touch screen, then user input flexibility is improved, but user understanding of input results deteriorates

Engineering Contradiction:
Improveuser input flexibilityVSAvoiduser understanding of input results
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent implements a feedback mechanism where the system displays a visual representation (cursor or highlight) that moves in response to user input, and shows the interpreted result of the user's free-hand writing. This allows users to see immediately what the system understands from their input, creating a closed-loop feedback system that improves comprehension.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent introduces an intermediary visual element (such as a cursor, highlight, or visual indicator) that mediates between the user's free-hand input and the system's interpretation. This intermediary provides a visual bridge that helps users understand how their input is being processed and what result will be produced.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If portable terminal functions are diversified and complicated, then functional capability is improved, but user understanding of operations deteriorates

Engineering Contradiction:
Improvefunctional capabilityVSAvoidoperation complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The visual feedback mechanism provides continuous information about the system's state and interpretation of user actions, making complex functions more transparent. Users can see what the system is doing in response to their inputs, which reduces the perceived complexity even when many functions are available.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent employs visual changes (such as color changes, highlighting, or other visual indicators) to show the system's response to user input. These visual cues help users understand complex operations by providing immediate, intuitive feedback about what is happening in the system.

Inventive Principle:
Principle #32Color changes

Data Source

PatentUS7594190B2Apparatus and method for user interfacing
Publication Date: 2009.09.22 SAMSUNG ELECTRONICS CO LTD
  • US7594190B2 patent drawing
  • US7594190B2 patent drawing
  • US7594190B2 patent drawing

AI summary

Disclosed are an apparatus and a method for user interfacing. The user interfacing method of a portable terminal with a pointing device includes checking whether or not pointing through the pointing device has occurred, and removing a current image while distorting the current image around a pointing position if pointing has occurred. The user interfacing apparatus of a portable terminal comprises a pointing device for enabling pointing by a user, a display unit for displaying an image for graphic user interfacing, and a control unit for controlling the display unit in such a manner that a current image is removed by distorting the current image around a pointing position and a resultant image according to the pointing is displayed if the pointing has occurred through the pointing device.