Position Indicator Sensors for Groove-Free Display Object Control

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Solution Overview

Problem

Existing technologies require special hardware features like grooves on electronic devices for controlling the movement of display objects using a position indicator, limiting their applicability.

Innovation Solution

A position indicator equipped with sensors to detect fingertip movement and tilt, transmitting data to an information processing apparatus to control display object movement without requiring special hardware features.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If special hardware features like grooves are provided on the electronic device, then control of display object movement is enabled, but device complexity and manufacturing cost increase

Engineering Contradiction:
Improvecontrol of display object movementVSAvoidhardware structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical groove system with a sensor-based detection system. Instead of using physical grooves to guide finger movement, the invention uses sensors to detect finger position and movement on the flat display surface, converting mechanical guidance into electronic detection and control.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces sensors as an intermediary between the user's finger and the display object control system. The sensors detect finger position and movement without requiring direct mechanical contact or special hardware features, acting as a mediator that enables control through software processing.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If special hardware features like grooves are provided on the electronic device, then control of display object movement is enabled, but manufacturing cost and production difficulty increase

Engineering Contradiction:
Improvecontrol of display object movementVSAvoiddevice production
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent replaces the mechanical groove system with a sensor-based detection system. Instead of using physical grooves to guide finger movement, the invention uses sensors to detect finger position and movement on the flat display surface, converting mechanical guidance into electronic detection and control.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent makes the display surface universally functional by enabling scroll control without special hardware features. The same flat display surface that shows content also serves as the control interface, allowing the device to be manufactured using standard display production processes.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Measurement precision

If sensors for detecting fingertip movement and tilt are added to the position indicator, then control precision and functionality are improved, but device complexity increases

Engineering Contradiction:
Improvefingertip movement detectionVSAvoidsensor system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent merges multiple sensing functions into a single integrated position indicator system. The sensors for detecting fingertip movement, tilt, and position are combined in one device, allowing multiple control functions to be achieved through a single unified interface rather than separate components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The position indicator is designed as a multi-functional device that can detect finger position, movement direction, and tilt angle simultaneously. This universal sensor system enables various control operations (scrolling, selecting, swiping) through different gestures on the same device without requiring additional specialized components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 easy control of display object movement on a display screen using a position indicator, eliminating the need for grooves and enhancing usability across various devices.

Implementation Method 1

a first sensor configured to detect a movement amount of a fingertip of a user

Methodology Applied
Scientific EffectPosition detection:

Implementation Method 2

a second sensor configured to detect a tilt of the position indicator

Methodology Applied
Scientific EffectTilt detection:

Data Source

PatentUS12353667B2Information processing system, position indicator, and method of controlling movement of display object on display screen of information processing apparatus
Publication Date: 2025.07.08 WACOM CO LTD
  • US12353667B2 patent drawing
  • US12353667B2 patent drawing
  • US12353667B2 patent drawing

AI summary

An information processing system includes: an information processing apparatus; and a position indicator configured to input position information to the information processing apparatus. The position indicator includes: a first sensor configured to detect a movement amount of a fingertip of a user, a second sensor configured to detect a tilt of the position indicator, and a transmission section configured to transmit data indicative of the movement amount detected by the first sensor and of the tilt detected by the second sensor. The information processing apparatus includes: a reception section configured to receive the data transmitted from the position indicator, and a first processor configured to control a movement of a display object displayed on a display screen on the basis of the tilt and the movement amount indicated by the data received by the reception section.