Blu-ray Key Event Capture Module Override
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Solution Overview
Problem
Blu-ray disc players lack a straightforward method to capture and override playback key events in movie titles, particularly in the 'Movie Title' mode, where non-default key strokes are prohibited by user operation masks, limiting user interaction and experience during playback.
Innovation Solution
A system and method that captures playback key events by receiving user operations, notifying users of potential adverse consequences for overriding default behaviors, and instructing the user event manager to override these behaviors, utilizing a key event capture module to manage and control key strokes within the Blu-ray disc player's BD-J mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user operation masks are used to prohibit non-default key strokes during playback, then content protection and default playback behavior are maintained, but user interaction flexibility and ability to perform specific operations are limited
Solution Approach 1:
The system dynamically adjusts the user operation mask based on the current playback state and user needs. The key event capture module can temporarily override prohibited key events when specific conditions are met, allowing the system to switch between restrictive and permissive modes as needed, thus resolving the contradiction between maintaining content protection and enabling user flexibility
Solution Approach 2:
The key event capture module acts as an intermediary between the user operation mask and the key event processing system. It captures key events that would otherwise be prohibited, evaluates them against additional criteria, and selectively allows them to pass through, thereby enabling flexible user interaction while maintaining the overall content protection framework
2Reliability
If default key stroke behavior is strictly enforced, then content protection and intended playback flow are maintained, but user experience and ability to perform specific operations are reduced
Solution Approach 1:
The system changes the operational parameters of key events by capturing them and modifying their processing state. The key event capture module alters the default prohibited state to an allowed state under specific conditions, enabling users to perform operations like seeking or skipping while maintaining protection for critical content sections
Solution Approach 2:
The system performs preliminary evaluation of key events before they are fully processed. The capture module pre-intercepts key events and assesses whether they should be allowed based on playback state, user preferences, and content protection requirements, making informed decisions before the actual playback action occurs
3Adaptability or versatility
If key events are captured and overridden, then user interaction flexibility is improved, but system complexity and potential for unintended behavior increase
Solution Approach 1:
The key event capture module implements feedback mechanisms that monitor playback state and user actions, using this information to make intelligent decisions about which key events to override. The system continuously evaluates the consequences of allowing or blocking key events and adjusts its behavior accordingly, preventing unintended outcomes while maintaining flexibility
Data Source
AI summary
Capturing playback key events to override a default behavior of key strokes during playback, includes: receiving a user operation initiated by a user; receiving a notice that a non-default behavior of the key strokes is being masked; notifying the user that there are adverse consequences of overriding the default behavior of the key strokes; and overriding the default behavior of the key strokes. Keywords include User Operation Mask Table and Playback Key Events.