Broadcast Receiver Output Protection for High-Resolution Content
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Solution Overview
Problem
Current television receivers struggle to provide high-value added functions, particularly in handling high-resolution and high-definition video content distribution and broadband network environments, despite existing data broadcasting capabilities.
Innovation Solution
A broadcast receiving apparatus equipped with a receiving unit, interface, and control unit that determines output states based on control information including copy control, video resolution, and transmission characteristics to apply output protection when necessary, enhancing functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data broadcasting receiving function is utilized or extended, then functionality is improved, but ability to provide high-value added television receiver capable of satisfying high-resolution and broadband network demands deteriorates
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting output protection levels based on multiple parameters including video resolution, transmission characteristics, copy control information, and protection requirements. The control unit evaluates these parameters and changes the output protection state accordingly, enabling the system to adapt to different content types and distribution scenarios, thereby providing high-value added functions while maintaining compatibility with existing data broadcasting capabilities
Solution Approach 2:
The patent implements dynamics by making the output protection state changeable rather than fixed. The control unit continuously monitors content parameters and dynamically adjusts the output protection level through the interface unit. This dynamic adaptation allows the television receiver to optimize its functionality for different content scenarios, resolving the contradiction between maintaining broad functionality and delivering high-value added performance
2Reliability
If output protection is applied to protect content, then content security is improved, but output flexibility and adaptability to different content environments deteriorates
Solution Approach 1:
The patent resolves this contradiction by implementing a dynamic output protection mechanism. The control unit evaluates multiple parameters including video resolution, transmission characteristics, and copy control information to determine the appropriate protection level. This allows the system to apply strong protection when needed for security while maintaining flexibility to adjust or reduce protection for content that requires different handling, thus balancing content security with output flexibility
Solution Approach 2:
The system changes the output protection parameter based on evaluated content parameters. When high-definition content with specific transmission characteristics is detected, the control unit adjusts the output protection level appropriately. This parameter-based adaptation ensures that content security requirements are met while maintaining the ability to adapt to diverse content environments and distribution scenarios
Data Source
AI summary
A digital broadcast receiving apparatus capable of executing a function with a higher added value is provided. A broadcast receiving apparatus configured to receive contents includes: a receiving unit configured to receive the contents; an interface through which the contents received by the receiving unit are outputted; and a control unit configured to control an output state of the contents from the interface. The control unit is configured to determine an output state of the contents from the interface in accordance with a combination of control information indicating a copy control state of the contents, control information for specifying whether protection is required or not when the contents are to be outputted, information indicating resolution of video of the contents, and information indicating transmission characteristics of the video of the contents, which are received by the receiving unit together with the contents.