Handwritten Input Apparatus for Direct Paper Design Correction

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Solution Overview

Problem

Users face challenges in directly modifying designs drawn on paper sheets when transitioning to electronic data, as the electronic data generated from scanned paper differs from the data handled by hand-written information processing apparatuses, requiring manual tracing and significant manual effort for correction.

Innovation Solution

A hand-written information processing apparatus that connects wirelessly to an external storage unit, featuring a stylus detection sensor, an operation input acceptance unit, and an image processing circuit, allowing for two modes of operation: one for displaying writing information and another for retaining and limiting input operations on the data, enabling direct output of writing information from memory to the image processing circuit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If users scan paper sheets to generate electronic data, then the design can be converted to digital format, but the electronic data differs from the data handled by hand-written information processing apparatuses, requiring manual tracing and correction

Engineering Contradiction:
Improveease of data conversionVSAvoidease of data modification
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The system creates a copy of the paper design by capturing the handwriting input and storing it as electronic data in the same format that the hand-written information processing apparatus handles natively. This copying mechanism allows the scanned data to be converted into a format that can be directly edited without manual tracing, resolving the contradiction between ease of conversion and ease of modification.

Inventive Principle:
Principle #26Copying

2Manufacturing precision

If manual tracing is performed to correct scanned data, then the data can be properly formatted for hand-written information processing, but significant manual effort and time are required

Engineering Contradiction:
Improvedata format accuracyVSAvoidcorrection time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The system performs preliminary action by capturing and storing handwriting data in the correct format from the beginning, rather than requiring later correction. The handwriting input is directly converted into editable electronic data before any processing occurs, eliminating the need for time-consuming manual tracing and format correction later in the workflow.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system replaces the mechanical process of manual tracing with an electronic capture mechanism. Instead of physically tracing scanned images, the handwriting is directly sensed by the stylus detection sensor and converted into digital data through electromagnetic interaction, substituting mechanical manual effort with automated electronic detection and processing.

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

3Speed

If display image processing information is sent to external apparatus, then the display can be updated in real-time, but the rendered image and display image may differ, causing user confusion

Engineering Contradiction:
Improvedisplay update speedVSAvoidimage consistency
Core Design Contradiction:
SpeedVSLoss of information

Solution Approach 1:

The system implements feedback by continuously monitoring the relationship between rendered images and display images, and automatically adjusting the display image processing information to maintain consistency. The control circuit receives feedback from both the rendering process and the display output, and dynamically modifies processing parameters to ensure the displayed image accurately reflects the rendered image, preventing user confusion while maintaining real-time updates.

Inventive Principle:
Principle #23Feedback

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 efficient hand-written information processing by allowing users to work with writing information generated electronically, maintaining image similarity between visually drawn and electronically processed data, reducing manual correction time and effort.

Implementation Method 1

a stylus detection sensor configured to detect a writing operation of a stylus on an inputting face

Methodology Applied
Scientific EffectElectromagnetic interaction: Electromagnetic Induction

Data Source

PatentEP3343342B1Hand-written information processing apparatus, hand-written information processing method and hand-handwritten information processing program
Publication Date: 2021.06.02 WACOM CO LTD
  • EP3343342B1 patent drawingFigure 1A~2C
  • EP3343342B1 patent drawingFigure 3
  • EP3343342B1 patent drawingFigure 4

AI summary

A hand-written information processing apparatus is provided by which such correction as to directly deal with a design drawn on a paper sheet or the like can be performed. The hand-written information processing apparatus includes a stylus detection sensor, a connection interface for outputting writing information corresponding to a writing operation of a stylus to an external apparatus which includes a display screen for displaying an image, and a display image processing information generation circuit for generating display image processing information for performing a given image operation process based on an operation input accepted by an operation input acceptance unit to the display image. An inputting face is configured such that a sheet member on which writing corresponding to a writing operation of a stylus can be visually formed can be placed thereon. In addition to a normal stylus, an ink stylus which can form a writing trace visually on a sheet member can be utilized. The hand-written information processing apparatus has a first mode for the normal stylus and a second mode for retaining writing information by the ink stylus into a memory.