Content Transmission Authentication Timer Mechanism
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Solution Overview
Problem
Existing content transmission technologies over networks lack effective copy protection mechanisms, allowing unauthorized copying and use beyond personal ranges, especially when content is transmitted between devices within the same home using LANs.
Innovation Solution
Implementing a content transmission apparatus and reception apparatus with authentication and encryption mechanisms, including a timer to ensure secure authentication and limit content transmission based on predetermined criteria, preventing unauthorized copying by measuring time intervals and statistical processing to verify legitimate connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If content is transmitted over a network between devices in the same home, then content accessibility and convenience are improved, but copyright protection and prevention of unauthorized copying deteriorate
Solution Approach 1:
The system performs preliminary authentication between transmission and reception apparatus before content transmission begins. The authentication process verifies device identities and establishes secure communication channels in advance, ensuring that only authorized devices can receive content. This preliminary security measure is integrated into the network transmission protocol, allowing convenient content sharing while maintaining copyright protection.
2Reliability
If authentication and encryption mechanisms are implemented for content transmission, then copyright protection is improved, but system complexity and processing overhead increase
Solution Approach 1:
The authentication and encryption mechanisms are designed as universal components that can be integrated into various types of digital devices (set-top boxes, personal computers, portable devices) without requiring device-specific custom implementations. The system uses standardized authentication protocols and encryption algorithms that work across different device types, reducing overall system complexity while maintaining robust copyright protection.
Solution Approach 2:
The system introduces an intermediary authentication module that mediates between the content source and reception devices. This intermediary component handles the complex authentication and key management processes, shielding end users from complexity while ensuring secure content transmission. The intermediary acts as a trusted third party that simplifies the overall system architecture.
3Reliability
If timer-based authentication verification is used to prevent unauthorized copying, then security against illegal copying is improved, but transmission time and processing delay increase
Solution Approach 1:
The timer-based authentication verification performs only the essential minimum checks needed to prevent unauthorized copying, rather than comprehensive verification of all possible security parameters. The system uses timeout thresholds that are set to the minimum necessary duration to ensure security while avoiding excessive delays. This partial verification approach provides adequate protection against illegal copying while maintaining efficient content transmission.
Data Source
AI summary
A copyright of a content is protected by preventing creation of illegal copies of the content and the content is prevented from being transmitted beyond a range of personal use in a process to transmit the content through a LAN.Before transmission of a content, a content transmission apparatus and a content reception apparatus perform a determination of authentication information available in a predetermined command accompanying authentication information, or an authentication determination based on a time until reception of a response to a predetermined command request accompanying predetermined authentication information. If the authentication is unsuccessful, the requested content is not transmitted to the content reception apparatus. With such arrangement, it is possible to effectively protect a copyright when a content is transmitted by way of a network.