Touch Panel Settlement Terminal Input Accuracy

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Solution Overview

Problem

Existing settlement terminals face challenges in achieving a smaller size while maintaining good operability, particularly in accurately and efficiently inputting information through key operations.

Innovation Solution

A small-sized settlement terminal equipped with a touch panel-type display section that changes image patterns upon touch, determining the initial and final touch positions to validate inputs and execute processing based on the final position, ensuring accurate data entry and reducing errors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If a smaller size settlement terminal is designed, then the device size is reduced, but the operability and input accuracy deteriorate

Engineering Contradiction:

Improveterminal sizeVSAvoidinput accuracy

Core Design Contradiction:

Volume of moving objectVSEase of operation

Solution Approach 1:

The patent transitions from traditional physical key input to touch panel input, utilizing the display surface area as an additional dimension for input. The touch panel display section allows operators to input information by touching displayed characters or symbols, effectively using the two-dimensional display area to compensate for the reduced physical size of the terminal.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent replaces the mechanical key operation system with a touch panel system. Instead of physical keys that require precise mechanical pressing, the system uses visual display elements that can be touched directly on the screen, eliminating the need for precise mechanical alignment while maintaining input accuracy.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If key operation input is used, then data input speed is maintained, but input errors increase due to small key size

Engineering Contradiction:

Improvedata input speedVSAvoidinput accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The touch panel system provides immediate visual feedback when a key is touched, displaying the selected character or symbol prominently. This feedback mechanism allows operators to verify their input in real-time, reducing errors while maintaining fast input speed through direct touch interaction.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The touch panel display utilizes visual changes including color changes to indicate touched keys and selected options. This visual enhancement makes it easier for operators to identify their input actions and correct errors quickly, improving both accuracy and efficiency.

Inventive Principle:

Principle #32Color changes

Data Source

PatentUS8665229B2Settlement terminal and controlling method of the same

Publication Date: 2014.03.04 TOSHIBA TEC KK

AI summary

According to one embodiment, when a touch position on a touch panel-type display section corresponds to an image pattern for an operation, the display of the image pattern is changed to the display of the image pattern in a different display form. When the touch is released in this state, the information of the image pattern that is touched is used as an input and processing based on the input information is executed.