BD-ROM Playback Path Selection via User Age Register
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Solution Overview
Problem
Existing parental control technologies for movie works are limited in expansibility, as they rely on fixed age groups defined by rating systems, making it labor-intensive to implement playback control changes based on user development or other criteria.
Innovation Solution
A recording medium with a digital stream and a control program that selects playback paths using a status register value indicating the user's age, allowing for programmatic parental control and adaptable playback paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If parental control is implemented using fixed rating levels, then viewing control over extreme scenes is achieved, but adaptability to different user development stages is lost
Solution Approach 1:
The patent changes the control parameter from fixed rating levels to variable user age values. The playback control unit selects playback paths based on the user's age rather than predetermined rating levels, enabling dynamic adaptation as users grow. This parameter change allows the system to accommodate different development stages while maintaining a unified control mechanism.
Solution Approach 2:
The patent creates a universal parental control system that can handle multiple types of content restrictions through a single age-based mechanism. Instead of requiring separate control procedures for different content types (extreme scenes, learning materials, etc.), the system uses one unified age-based selection process that works across all content categories, improving versatility without adding complexity.
2Adaptability or versatility
If multiple playback paths are recorded for different rating levels, then viewing control is achieved, but labor for implementing additional control procedures increases
Solution Approach 1:
The patent implements a universal control procedure that uses user age as a single criterion for selecting among multiple playback paths. This unified approach replaces the need for separate control procedures for different content types, reducing implementation labor while maintaining the ability to handle diverse playback control requirements through one standardized mechanism.
Solution Approach 2:
By changing the control parameter to user age, the system can manage multiple playback paths with a single selection criterion. This allows the system to accommodate various content types (extreme scenes, educational materials, etc.) using one age-based selection process, thereby reducing the labor required to implement and maintain multiple separate control procedures.
3Ease of operation
If extreme video images are shown as they are, then purchaser demands are met, but friction with sensible people increases
Solution Approach 1:
The patent segments the video content into multiple playback paths with different levels of extreme content. The playback control unit selects the appropriate path based on user age, allowing younger users to view moderated versions while older users can access the original extreme content. This segmentation resolves the conflict by providing age-appropriate content to different user groups simultaneously.
Solution Approach 2:
The playback control unit acts as an intermediary that automatically selects appropriate playback paths based on user age. This intermediary function resolves the conflict between showing extreme content and protecting sensitive viewers by automatically filtering content based on age, eliminating the need for manual intervention while satisfying both purchaser demands and sensible people's concerns.
Data Source
AI summary
The present invention is a BD-ROM having AVClips and PlayList information pieces, which are playback paths for the AVClips, recorded thereon. In addition, the BD-ROM also has multiple playback paths and dynamic scenarios recorded thereon. The dynamic scenarios instruct a playback device to play a digital stream using the playback paths. The dynamic scenarios include selection procedures (IF-statement blocks) which cause the playback device to compare a constant and a register-stored value indicating a user's age set on the playback device, (PSR(13)), and to select a playback path from among the multiple playback paths according to the result of the comparison.