Forensic Marking Apparatus Binary Content Segmentation
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Solution Overview
Problem
Current forensic marking technologies for digital content are inefficient, causing service delays due to the time-consuming process of inserting forensic marks, and require significant storage space for varying watermark values, leading to potential service disruptions and incorrect demand forecasting.
Innovation Solution
An apparatus and method for generating and serving digital content with forensic marks that include user information by creating pairs of content with binary forensic marks ('0' and '1') inserted in original content, allowing for rapid combination and transmission based on user information at the time of service request, using a forensic marker, content database, and transceiver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If forensic mark is inserted by decoding entire content, inserting mark, and encoding again, then forensic mark insertion is achieved, but processing time becomes excessively long causing service delay
Solution Approach 1:
The patent applies preliminary action by pre-inserting binary forensic marks ('0' and '1') into the original content before any user request. This allows the system to store multiple pre-marked content versions in advance, so when a user requests content, the forensic mark insertion has already been performed previously, eliminating the time-consuming decode-insert-encode process at service time and thus resolving the service delay issue while maintaining forensic mark reliability
Solution Approach 2:
The patent segments the forensic mark insertion process by dividing the content into multiple versions with different binary forensic marks inserted at different positions. Instead of performing one complete decode-insert-encode operation per request, the system pre-segments content into multiple pre-marked versions, allowing rapid selection and delivery based on user information, thereby reducing processing time while ensuring forensic mark reliability
2Ease of operation
If content with different watermark values is stored for frequently requested content, then user convenience is improved, but storage space requirement increases significantly
Solution Approach 1:
The patent applies partial action by inserting only binary forensic marks ('0' and '1') into the content rather than storing complete duplicate versions of content with different watermark values. This partial marking approach provides sufficient user convenience for tracking and identification while dramatically reducing the storage space required compared to storing full content copies for each possible watermark scenario
Solution Approach 2:
The patent uses copying by creating multiple versions of content with different binary forensic marks inserted at different positions. These are simplified copies that contain only the essential forensic marking information rather than full content duplications, enabling the system to provide varied watermark values for user convenience while maintaining efficient storage utilization
Data Source
AI summary
Provided are an apparatus and method for forensic marking of digital content. The apparatus includes a forensic marker configured to generate first content by inserting a first binary forensic mark in original content and second content by inserting a second binary forensic mark in the original content, and when a content service request is generated, combine the first content and the second content on the basis of information about a user who has requested the content service and thereby generate third content in which a forensic mark corresponding to the user information is inserted, a content database configured to store the first and second content, and a transceiver configured to transmit the third content.