Touch Screen Input Error Prevention via Grammar Validation

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Solution Overview

Problem

Input errors frequently occur when using touch screens due to the limited size of the input interface, leading to incorrect data entry, especially when users do not use a stylus, and there is a need to prevent grammatical errors in character input.

Innovation Solution

A method and device that sense the start and finish of a touch on a touch screen, acquire input data at the point of touch completion, perform a grammar check, and display only grammatically correct data, allowing users to correct their touch point and ensuring accurate input.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the touch screen size is reduced to miniaturize the terminal, then the terminal size is reduced, but the input interface area is reduced leading to frequent input errors

Engineering Contradiction:

Improveterminal sizeVSAvoidinput accuracy

Core Design Contradiction:

Volume of moving objectVSReliability

Solution Approach 1:

The system performs preliminary validation by acquiring candidate input data at the touch start point and verifying its correctness before the user completes the touch operation. This preliminary check allows the system to prepare correction options in advance, preventing input errors before they are finalized.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system provides feedback to the user by displaying candidate input data and its correctness status during the touch operation. This feedback mechanism allows users to see potential input errors and adjust their touch position accordingly, improving input accuracy on small touch screens.

Inventive Principle:

Principle #23Feedback

2Ease of operation

If the user touches the touch screen without using a pointed tool, then the operation is more convenient, but input errors occur frequently due to imprecise touch positioning

Engineering Contradiction:

Improvetouch operation convenienceVSAvoidtouch point precision

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The system performs self-correction by automatically detecting input errors and providing correction options without requiring the user to use a precise pointed tool. The touch interface compensates for imprecise finger touches through automated validation and correction mechanisms, maintaining both convenience and accuracy.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system changes the parameter of touch point acquisition from using the touch start point to using the touch finish point. This parameter change allows users to adjust their touch position during the operation, compensating for initial imprecision while maintaining ease of use.

Inventive Principle:

Principle #35Parameter changes

3Speed

If the system acquires input data at the touch start point, then the input response is faster, but input errors occur because users cannot correct their touch position

Engineering Contradiction:

Improveinput response speedVSAvoidinput accuracy

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The system performs preliminary data acquisition at the touch start point to maintain fast response, then continues to monitor the touch operation and performs correction based on the final touch position. This two-stage approach preserves speed while improving accuracy.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the touch point used for data acquisition based on the user's action. Initially using the touch start point for quick response, then transitioning to use the touch finish point for accurate input, allowing the system to adapt between speed and precision based on the operation phase.

Inventive Principle:

Principle #15Dynamics

4Device complexity

If the system displays all input data without verification, then the input process is simpler, but incorrect data is displayed requiring manual deletion

Engineering Contradiction:

Improveinput processing complexityVSAvoidtime for correction

Core Design Contradiction:

Device complexityVSLoss of time

Solution Approach 1:

The system provides feedback about input correctness by displaying candidate data and its validation status. This feedback mechanism prevents incorrect data from being finalized, saving user time by avoiding manual deletion and re-entry, while adding only minimal processing complexity.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs self-validation of input data automatically, checking for correctness without requiring user intervention. This self-service approach filters out incorrect inputs before they can cause problems, reducing the time users would otherwise spend correcting errors.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS9372847B2Method, device and computer readable recording medium for preventing input error when information is inputted through touch screen

Publication Date: 2016.06.21 NHN CORP

AI summary

Disclosed are a method, device and computer readable recording medium for preventing an input error when information is inputted through a touch screen. According to an exemplary embodiment of the present invention, there is provided a method for preventing an input error when information is inputted through a touch screen, including the steps of sensing a start and a finish of a touch on the touch screen and acquiring input data corresponding to a point where the touch is finished when the finish of the touch is sensed, and performing a grammar check on the acquired input data and displaying the input data if the input data is determined to be grammatically correct.