Context-Dependent Multi-Angle Navigation for Digital Versatile Discs
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Solution Overview
Problem
Current DVD navigation techniques lack the ability to provide contextually dependent interactivity and unique audio and sub-picture data for parallel, synchronized audio-visual streams, resulting in identical button appearances and functionalities across different angles.
Innovation Solution
A method that detects navigation data packets to modify highlight properties and data payloads within audio-visual streams, allowing content authors to embed unique interactive elements and content across streams, enabling seamless switching and alternate content presentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multi-angle navigation is implemented with identical HLI across all streams, then seamless switching between streams is achieved, but contextual interactivity and unique content per angle are lost
Solution Approach 1:
The patent applies local quality by allowing different highlight properties (HLI) for different angle streams. Each stream can have customized button appearances, locations, and functionalities specific to that angle, while still maintaining the overall multi-angle navigation structure. This enables contextually relevant interactivity for each angle without sacrificing seamless switching capability.
2Adaptability or versatility
If unique HLI properties are assigned to each stream, then contextual interactivity is improved, but system complexity increases
Solution Approach 1:
The patent segments the navigation data structure into separate HLI components for each angle stream. By dividing the navigation information into angle-specific segments, the system can manage unique interactive properties for each stream independently. This segmentation approach organizes the complexity into manageable units while preserving the ability to switch between angles seamlessly.
3Stability of the object's composition
If identical sub-picture and audio data are used across all streams, then data consistency is maintained, but content flexibility and viewer engagement are reduced
Solution Approach 1:
The patent enables different sub-picture and audio data to be associated with different angle streams. Each angle can have customized subtitles, graphical elements, and audio tracks that are specific to that viewing angle. This local differentiation maintains data consistency within each stream while providing content flexibility across multiple angles, enhancing viewer engagement.
Data Source
AI summary
Selection of an audio-visual stream from among a plurality of streams occurs by first detecting a navigation packet within at least one stream that provides information concerning the stream, as well as those streams in lie in synchronism therewith. From the navigation packet, a determination is made which other streams lie in synchronism with the one stream, which audio and sub-picture data packets exist in each stream, and as well as which highlight information properties exist for selecting among the synchronized streams. At least one of the audio data packets, sub-picture data packets, or highlight information properties undergoes modification in accordance with information about at least one other synchronized stream to allow display of a viewer selectable button or the like to select among the synchronized streams and/or be presented with differing audio and/or sub-picture contents with each stream.