Electronic Pen Invisible Code Pattern Media Identification
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Solution Overview
Problem
Current writing information processing systems lack efficient methods for accurately capturing and processing user input on printed documents, particularly in terms of identifying unique media and tracking writing positions, while ensuring high-density information recording and error correction.
Innovation Solution
A writing information processing system that includes an electronic pen with an operation status detector and a visible light generator, which uses infrared light to read invisible code pattern images embedded on printed documents, and a terminal device to acquire and display the writing information, enabling unique media identification and precise writing position tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If invisible code pattern images are embedded on printed documents to enable unique media identification, then media identification accuracy is improved, but the complexity of the printing system increases
Solution Approach 1:
The patent uses invisible code pattern images that become visible when processed by the electronic pen's reading mechanism. The codes are embedded in the printed document but remain invisible to the naked eye, changing state only when interacted with by the electronic pen system, thus enabling identification without adding visible complexity to the document appearance.
Solution Approach 2:
The electronic pen serves as an intermediary device between the printed document and the information processing system. It reads the invisible code patterns embedded in the document and converts them into detectable signals, mediating the interaction without requiring direct complex processing in the printing system itself.
2Measurement precision
If infrared light is used to read invisible code pattern images, then writing position tracking precision is improved, but energy consumption increases
Solution Approach 1:
The electronic pen uses periodic infrared light emission to read code patterns. Instead of continuous illumination, the system employs pulsed or periodic light activation, which reduces energy consumption while maintaining sufficient reading precision for tracking writing positions accurately.
Solution Approach 2:
The system optimizes the infrared light parameters (intensity, duration, frequency) to achieve the minimum necessary for accurate code reading. By dynamically adjusting these parameters based on the reading requirements and environmental conditions, the system maintains precision while minimizing energy expenditure.
3Quantity of substance
If high-density information is recorded on printed documents, then information capacity is improved, but the difficulty of detecting and measuring increases
Solution Approach 1:
The patent replaces traditional optical scanning methods with an electronic pen-based reading system that uses infrared light and electronic detection. This substitution enables the system to detect high-density information patterns that would be difficult or impossible to measure using conventional mechanical or optical methods, thereby increasing information capacity without proportionally increasing detection difficulty.
Solution Approach 2:
The electronic pen serves multiple functions: it writes on the document, reads the invisible code patterns, and processes the information. This multi-functionality allows the system to handle high-density information recording and detection within a single integrated device, reducing the complexity of separate detection systems that would be needed for conventional methods.
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
The system effectively records and displays user input with high accuracy, ensuring reliable identification of printed documents and precise tracking of writing positions, while maintaining a high information density and error correction capability.
Implementation Method 1
The writing information generating device includes a visible light generator. The visible light generator generates visible light representing the detected current operation status
Data Source
AI summary
A writing information processing system includes a writing information generating device and an information processing device. The writing information generating device generates writing information relating to a user's writing operation on a medium. The information processing device acquires the writing information from the writing information generating device and stores the writing information. The writing information generating device includes an operation status detector and a visible light generator. The operation status detector detects a current operation status of the writing information generating device. The visible light generator generates visible light representing the detected current operation status of the writing information generating device.