Touch Input Apparatus Detecting Tool Color and Position

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Electronic blackboards lack the ability to intuitively input touch commands in various colors and shapes, limiting user interaction and flexibility.

Innovation Solution

An input apparatus equipped with a first sensor to detect touch position and trajectory, and a second sensor to detect the color of the input tool, with a controller to display graphics in the detected color at the touch position, allowing for intuitive input of touch commands in multiple colors and forms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional electronic blackboard systems are used, then basic touch input functionality is provided, but the ability to input touch commands in various colors and shapes is limited

Engineering Contradiction:

Improvecolor and shape input capabilityVSAvoidsensor and controller configuration

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The display apparatus is designed to perform multiple functions: it detects not only touch position but also color information from the input tool and shape characteristics of the touch gesture. This multi-functional approach allows a single device to replace what would otherwise require separate tools for different input types, thereby improving adaptability without proportionally increasing complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system changes the detection parameters from simple touch coordinates to include color values and shape characteristics. By detecting additional parameters (color of the input tool, area of contact, trajectory patterns), the system enables diverse input capabilities while using the same basic sensor infrastructure, thus improving versatility without linearly increasing device complexity

Inventive Principle:

Principle #35Parameter changes

2Measurement precision

If multiple sensors are added to detect color and touch position, then color and shape detection accuracy is improved, but device complexity increases

Engineering Contradiction:

Improvecolor and position detection accuracyVSAvoidsensor system structure

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines the touch position detection sensor and the color detection sensor into an integrated sensing system. Rather than using completely separate systems, the invention merges these functions into a unified detection mechanism that processes both spatial and color information together, thereby improving measurement precision while controlling the increase in device complexity through integration

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The controller acts as an intermediary that receives data from multiple sensors and processes them into unified touch command information. This intermediary component coordinates the information from position sensors and color sensors, enabling accurate color and shape detection while managing the complexity of the multi-sensor system through centralized processing

Inventive Principle:

Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables users to input touch commands in various colors and shapes without limitations on input tools, enhancing user interaction and flexibility while reducing additional costs.

Implementation Method 1

a first sensor configured to detect a touch position of a touch command input to the display from an input tool

Methodology Applied

Scientific EffectTouch sensing:

Implementation Method 2

a second sensor configured to detect a color of the input tool; the color sensor includes at least one of a camera, a color filter, and a photodiode

Methodology Applied

Scientific EffectColor recognition:

Data Source

PatentUS11222445B2Input apparatus for displaying a graphic corresponding to an input touch command and controlling method therefor

Publication Date: 2022.01.11 SAMSUNG ELECTRONICS CO LTD

AI summary

Embodiments of the disclosure relate to an input apparatus and a controlling method thereof, more particularly, to an input device for displaying a graphic in a detected color and an input touch form by detecting a color and a touch shape of an input tool for inputting a touch command. An input apparatus according to an embodiment includes a display: a first sensor configured to detect a touch position of a touch command input to the display from an input tool; a second sensor configured to detect a color of the input tool; and a controller configured to control a graphic corresponding to the input touch command to be displayed in the detected color at the detected touch position.