Digital Receiver PVR Module for 3D Video Stream Processing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Digital receivers face difficulties in processing 3D content, particularly in switching between 2D and 3D modes and supporting Full Resolution Per Eye for 3D streams, leading to user inconvenience.
Innovation Solution
A digital receiver configuration that includes a Personal Video Recorder (PVR) module capable of receiving, processing, and outputting 3D video streams by adding timestamps, creating index files, and decoding 3D video data to support various PVR functions such as 2D/3D switching and trick play, utilizing system information and 3D PVR support data within the digital broadcast signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the digital receiver processes 3D content with Full Resolution Per Eye using dual video streams, then the video quality is improved, but the device complexity increases due to the need for separate processing of base layer and enhancement layer streams
Solution Approach 1:
The patent segments the 3D video stream into base layer and enhancement layer components, processing them separately through the PVR module. This allows Full Resolution Per Eye to be achieved by maintaining distinct processing paths for each layer, improving video quality while managing complexity through modular segmentation of the video stream handling
Solution Approach 2:
The PVR module is designed with multi-functionality to handle both 2D and 3D content processing, as well as multiple playback modes (normal playback, trick play, pause, etc.). This universal design allows the same hardware infrastructure to support diverse 3D content processing requirements without requiring separate dedicated systems for each function
2Adaptability or versatility
If the digital receiver supports PVR functions for 3D streams, then the functionality is improved, but the ease of operation deteriorates due to the complexity of managing 3D-specific parameters and switching between modes
Solution Approach 1:
The system implements automatic mode switching based on the type of content being played back. The PVR module automatically determines whether to operate in 2D or 3D mode based on the input stream characteristics, eliminating the need for manual user configuration and simplifying operation while maintaining full 3D PVR functionality
3Adaptability or versatility
If the digital receiver implements 2D/3D switching capability, then the adaptability is improved, but the reliability deteriorates due to potential switching errors and user inconvenience
Solution Approach 1:
The system incorporates feedback mechanisms that monitor the playback state and content characteristics to automatically adjust between 2D and 3D modes. This feedback-driven approach ensures reliable mode switching by continuously adapting to the actual content being processed, preventing switching errors and maintaining operational reliability
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to a digital receiver and a method for processing contents in the digital receiver. A digital receiver for 3D service according to one embodiment of the present invention comprises: a receiving unit which receives a 3D video base stream and system information including PVR support information of the 3D video base stream; a download module which adds a time-stamp to the 3D video base stream, and controls to configure and store an index file including information for PVR function performance of the 3D base stream, which is extracted from the PVR support information; a PVR module including an upload module which uploads the stored 3D video base stream on the basis of at least one of the index file and time-stamp values; a decoder which decodes the uploaded 3D video base stream; a formatter which formats the decoded 3D video data according to an output format; and an output unit which outputs the formatted 3D video data.