Digital Broadcast Receiving Apparatus for Integrated 2D and 3D Services
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current digital broadcast systems do not provide an integrated service for 2D and 3D images, making it difficult for users to seamlessly switch between these formats and lack signaling for channels offering 3D services within 2D channels, hindering user convenience.
Innovation Solution
A digital broadcast receiving method and apparatus that includes a demultiplexing unit, a PSIP/PSI processor, and an output formatting unit to extract and format 3D and 2D service information from digital broadcast signals, allowing for the selection and display of integrated 2D and 3D image services by signaling 3D channels related to 2D channels and vice versa.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 3D image service is provided separately from 2D image service, then 3D image quality is maintained, but user convenience deteriorates due to inability to quickly switch between services
Solution Approach 1:
The patent merges 2D and 3D image services into a single integrated service provided through one channel. The broadcast signal includes both 2D video streams and 3D video streams (left and right view streams) multiplexed together, allowing users to switch between 2D and 3D modes without changing channels or losing service context. This resolving the contradiction by maintaining service quality while enabling convenient switching.
Solution Approach 2:
The patent makes the broadcast channel universal by enabling it to provide multiple service types (2D and 3D) through a single channel. The receiving device can selectively decode and output either 2D or 3D images from the same channel based on user preference, making the channel multi-functional and eliminating the need for separate dedicated channels for each service type.
2Adaptability or versatility
If signaling for 3D channels related to 2D channels is implemented, then service integration is improved, but system complexity increases
Solution Approach 1:
The patent segments the video service into distinct 2D video streams and 3D video streams (left view and right view) within the same broadcast channel. Each stream is independently encoded and multiplexed, allowing the receiving device to selectively decode only the required streams based on whether 2D or 3D output is desired. This segmentation enables service integration while keeping processing manageable through selective decoding.
Solution Approach 2:
The patent introduces service information signaling as an intermediary that carries metadata about the available 2D and 3D services within a channel. This signaling provides the receiving device with knowledge of service availability and characteristics without requiring complex analysis of the video streams themselves, simplifying the integration process while maintaining adaptability.
3Loss of information
If users check program guide information in advance, then awareness of 3D services is achieved, but time consumption increases
Solution Approach 1:
The patent implements preliminary action by embedding service information signaling within the broadcast stream itself, providing real-time information about available 2D and 3D services. This allows users to immediately know what services are available on each channel without needing to consult separate program guides or perform advance checking, as the information is continuously provided with the broadcast content.
Data Source
AI summary
A digital broadcast receiving apparatus for providing an integrated service of a 2D image and a 3D image. The apparatus comprising a demultiplexing unit configured to demultiplex a received digital broadcast signal; a PSIP or PSI/SI processor configured to extract at least any one of 3D service information related to a 2D image channel or service and 2D service information related to a 3D image channel or service from the demultiplexed digital broadcast signal; a decoder configured to decode an extension view video stream and a base view video stream from the demultiplexed digital broadcast signal; and an output formatting unit configured to format the extension view video stream and the base view video stream based on at least any one of the 3D service information and the 2D service information.