Touchscreen Input Confirmation with Predictive Text Highlighting

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Solution Overview

Problem

Handheld electronic devices face challenges in text input due to the separation of input and output devices, requiring users to shift attention, which is problematic given limited attentional resources, especially during tasks like conversations or multitasking.

Innovation Solution

A handheld electronic device with a touch screen interface featuring a virtual keypad and disambiguation routine that provides real-time confirmation and predictive text input, using highlighting to confirm entered letters and suggest next inputs, reducing the need for users to look away from their task.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If a physical keypad is separated from the display, then the device can be made compact, but the user must shift attention between input and output devices

Engineering Contradiction:

Improvedevice sizeVSAvoiduser attention requirement

Core Design Contradiction:

Volume of moving objectVSEase of operation

Solution Approach 1:

The patent combines the input and output devices into a single integrated touch-sensitive display surface. The same display area serves both as the visual output and as the input interface, eliminating the need for separate physical keypads and removing the need for users to shift attention between separate input and output devices.

Inventive Principle:

Principle #5Merging (Combining)

2Measurement precision

If real-time confirmation is provided during text input, then input accuracy improves, but system complexity increases

Engineering Contradiction:

Improveinput accuracyVSAvoidsystem complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements real-time feedback during text input by displaying a moving highlight that tracks the current input position and provides predictive text suggestions. This feedback mechanism confirms input accuracy continuously without requiring complex post-input processing or multiple confirmation steps.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary actions by providing predictive text suggestions before the user completes their input. The highlight mechanism anticipates the user's intended input and displays likely completions in advance, reducing the need for complex correction mechanisms later.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If predictive text suggestions are provided, then input speed increases, but processing requirements increase

Engineering Contradiction:

Improveinput speedVSAvoidprocessing energy

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent implements partial predictive action by providing text suggestions only for the current input context rather than generating all possible completions. The system balances predictive capability with processing efficiency by activating suggestions based on the current highlight position and input state, avoiding excessive processing while still improving input speed.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS9377951B2Handheld electronic device providing confirmation of input, and associated method

Publication Date: 2016.06.28 MALIKIE INNOVATIONS LTD

AI summary

A letter confirmation system is provided on a handheld electronic device. The letter confirmation provides highlighting of various letters that have been input to the handheld electronic device during a string of member input actuations. The letter confirmation system can additionally provide predictive linguistic elements that would be appropriate next inputs. Various types of highlights can be provided in various combinations to provide various indications to a user.