Input Control Device for Consecutive Character Input

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Solution Overview

Problem

Existing input control systems complicate key operations when repeatedly inputting the same character, as they incorrectly identify consecutive inputs as chattering, requiring longer intervals between key presses to avoid erroneous inputs.

Innovation Solution

An input control system that includes a detection unit to identify character inputs, a determination unit to compare each input with the previous character, and an input processing unit to accept inputs only when they differ from the previous character, thereby preventing consecutive identical character inputs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a time interval threshold is used to detect chattering in key operations, then erroneous inputs are prevented, but the complexity of key operations increases when the same character needs to be input consecutively

Engineering Contradiction:

Improveprevention of erroneous inputVSAvoidcomplexity of key operation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent changes the detection parameter from time interval to character identity comparison. Instead of measuring the time between key presses, the system compares whether the current input character matches the previously accepted character, fundamentally altering the detection criterion to eliminate the need for time-based constraints on user input

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces the mechanical time-based chattering detection system with a logical character comparison system. The physical timing mechanism is substituted by a software-based identity verification process that determines whether consecutive inputs are erroneous based on character content rather than temporal spacing

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If the time interval from previous character input to next character input is extended beyond a prescribed interval, then consecutive identical character inputs are prevented, but the input efficiency decreases

Engineering Contradiction:

Improveprevention of erroneous inputVSAvoidinput efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent changes the control parameter from time interval duration to character identity matching. This allows users to input characters at natural speeds without artificial delays, as the system distinguishes valid consecutive inputs (different characters) from erroneous ones (identical characters) based on content rather than timing

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent enables continuous character input without interrupting the user's natural typing flow. By removing time-based interruptions and allowing seamless consecutive inputs, the system maintains continuous productive action while still preventing errors through character comparison

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentUS11947732B2Input control device, input control method, and program

Publication Date: 2024.04.02 SHARP KK

AI summary

An input control device includes a detection unit configured to detect a first character input by a key operation. The input control device also includes a determination unit configured to determine whether or not the detected first character is the same as a second character input immediately before the first character, and an input processing unit configured to accept an input of the first character when it is determined that the first character is not the same as the second character without accepting the input of the first character when it is determined that the first character is the same as the second character.