Display Apparatus Overlapped Channel Extraction
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Solution Overview
Problem
Display apparatuses struggle to inform users about overlapped broadcasting channels, which have the same content but differ in video format, leading to user inconvenience during channel selection and recording processes, as existing methods for determining overlapped channels are unreliable.
Innovation Solution
A display apparatus equipped with a signal receiver, signal processor, and controller that extracts and processes information about overlapped channels from broadcasting signals, providing users with channel configuration and user interface information to avoid selecting undesired channels and schedule recordings based on channel resolution differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display apparatus stores overlapped channels as tunable channels during automatic channel seeking, then the apparatus can access these channels, but the user experience deteriorates due to repetitive encounters with same content
Solution Approach 1:
The patent extracts overlapped channel information from the broadcasting signal and separates it from the main channel list. By extracting this redundant information, the system can present a filtered channel list to users that excludes overlapped channels, preventing repetitive content encounters while maintaining access capability through the extracted information.
Solution Approach 2:
The patent introduces an intermediary processing layer that receives broadcasting signals, extracts overlapped channel information, and provides processed channel lists to the user interface. This intermediary layer acts as a mediator between the raw signal and the user, transforming the data to improve user experience while preserving access to all channels.
2Loss of information
If the display apparatus determines overlapped channels based on content information, then it can identify duplicate content, but the determination reliability deteriorates due to varying information availability
Solution Approach 1:
The patent replaces unreliable content-based determination with a more reliable signaling mechanism. Instead of analyzing content variations, the system uses dedicated signaling fields in the broadcasting signal that explicitly indicate overlapped channel relationships, providing deterministic and reliable identification.
Solution Approach 2:
The patent changes the approach from content analysis to parameter-based identification by utilizing specific parameters (signaling fields) embedded in the broadcasting signal. This parameter change enables reliable determination of overlapped channels through explicit indicators rather than indirect content comparison.
3Ease of operation
If broadcasting signals include information about overlapped channels, then user convenience improves through informed channel selection, but the signal complexity increases
Solution Approach 1:
The patent implements a universal signaling mechanism that can indicate overlapped channel relationships across different channel types and formats. This multi-functional approach allows a single signaling field structure to handle various overlapped channel scenarios, providing user convenience without proportionally increasing signal complexity.
Data Source
AI summary
A display apparatus and a control method thereof are provided. The display apparatus includes a signal receiver configured to receive a broadcasting signal that includes content of a channel and information about content overlapped channels, a signal processor configured to extract the content and the information about the content overlapped channels from the received broadcasting signal, a display configured to display an image of an extracted content, and a controller configured to perform a control operation based on the extracted information about the content overlapped channels.