Dynamic Keyboard Determination Regions for Touch Input

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Solution Overview

Problem

Existing touch panel devices cause physical load and reduced operability due to friction during successive key input operations, as they do not effectively adapt determination regions based on user intent and movement patterns.

Innovation Solution

An information processing apparatus that dynamically changes the determination regions of keys based on user input and movement direction, using a proximity/pressure detection device to reduce finger movement and physical load by enlarging regions of adjacent or distant keys accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the determination region is enlarged to improve key input accuracy, then the recognition rate improves, but the operational load increases due to requiring double input

Engineering Contradiction:

Improvekey input recognition accuracyVSAvoidoperational load

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The determination region is dynamically adjusted based on the key input state. When a key input is detected, the determination regions of adjacent keys are automatically enlarged to facilitate the next input, eliminating the need for manual enlargement and reducing operational load while maintaining high recognition accuracy

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If the determination region is dynamically adjusted to improve successive key input operability, then finger movement is reduced, but the system complexity increases

Engineering Contradiction:

Improvesuccessive key input operabilityVSAvoidsystem complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

Instead of adjusting all determination regions uniformly, only the determination regions of keys adjacent to the currently input key are enlarged. This localized adjustment reduces the computational overhead and system complexity while effectively reducing finger movement for successive inputs

Inventive Principle:

Principle #3Local quality

3Ease of operation

If the determination region is expanded based on user movement patterns, then the physical load on finger is reduced, but the risk of incorrect input detection increases

Engineering Contradiction:

Improvephysical load on fingerVSAvoidinput detection accuracy

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system continuously monitors key input states and uses this feedback to dynamically adjust determination regions. After detecting a key input, the system enlarges adjacent determination regions only for subsequent inputs within a predetermined time period, automatically reverting to normal size afterward, thus preventing incorrect detection while reducing physical load

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS9024881B2Information processing apparatus, information processing method, and computer program

Publication Date: 2015.05.05 SONY GROUP CORP

AI summary

An information processing apparatus including a display controller that controls a display to display a keyboard, an interface that receives position information corresponding to a user input detected at a user interface, and a processor that determines that the received position information corresponds to a first determination region of a first key of the displayed keyboard and expands a second determination region of a second key based on the determining.