Text Segmentation With Zero-Size Characters to Block Copying
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Solution Overview
Problem
Existing methods fail to prevent unauthorized copying of electronic content without inconveniencing users and allowing access to relevant parts before purchase.
Innovation Solution
A method and device that divides text into segments, appends specific characters, generates codes for zero-size output, and transmits programs to user terminals to prevent unauthorized copying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users are allowed to access relevant parts of content before purchase, then user convenience and searchability are improved, but unauthorized copying of the entire content becomes easier
Solution Approach 1:
The patent segments text content into word-level units and applies different processing to different segments. Visible characters are displayed for user convenience, while invisible control characters are embedded in the same segments to prevent copying. This segmentation allows the system to simultaneously provide access to content while protecting it from unauthorized reproduction.
Solution Approach 2:
The patent introduces control characters as an intermediary element between the visible text and the copying mechanism. These control characters are embedded within the text segments but are not visible to users. When copying is attempted, these control characters interfere with the copying process, preventing unauthorized reproduction while not affecting user reading experience.
2Adaptability or versatility
If content is made searchable and accessible to users, then content utility and user satisfaction are improved, but complete copying of content without payment increases
Solution Approach 1:
The patent divides content into searchable word segments that can be individually accessed and searched, maintaining content accessibility and utility. Each segment contains both visible text for searchability and invisible control characters for protection, allowing the system to provide versatile access while preventing complete copying.
Solution Approach 2:
The patent applies different qualities to different parts of the content segments. Visible characters provide searchability and accessibility, while invisible control characters provide protection. This local differentiation allows the same content structure to serve multiple functions: searchability, readability, and anti-copying protection simultaneously.
3Ease of operation
If text is displayed with normal character size for user reading, then readability and user experience are improved, but copying becomes easier
Solution Approach 1:
The patent segments text into word-level units where each segment contains both visible and invisible characters. This segmentation allows the visible portion to be displayed at normal size for readability while the invisible control characters within the same segments prevent copying, resolving the contradiction between readability and copying protection.
Solution Approach 2:
The patent uses invisible control characters as intermediaries embedded within visible text segments. These control characters do not affect the visual display or readability of the text but actively prevent copying attempts. The control characters act as a mediator that allows reading while blocking reproduction.
Data Source
AI summary
Provided are a method and a device for disabling unauthorized copying of content. The device includes a memory that stores divided word segments for each text of the content, and one or more processors that are connected to the memory, and divide received text into word segments and store the word segments in the memory, append a specific character to each divided word segment, generate a code for outputting the specific character to have a character size of ‘0’ on a user terminal, and transmit a program written in a program language including the code to the user terminal.