Display Apparatus Channel Switching Timing Adjustment
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Solution Overview
Problem
Mobile phones experience increased memory load and delayed channel switching when switching between digital TV channels due to the need for buffering and synchronization processes, leading to a heavy load and long waiting times for users.
Innovation Solution
A display apparatus that decodes and displays a predetermined reference frame immediately after channel selection, rather than waiting for the original timing indicated by the time information attached to the frame, allowing for earlier display of the selected channel video.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile phone buffers and synchronizes all channels before channel switching, then the channel switching reliability is improved, but the waiting time increases significantly
Solution Approach 1:
The patent applies preliminary action by performing synchronization and buffering operations in advance for the currently viewed channel and potentially adjacent channels before channel switching is needed. This allows the system to have channel data ready when switching occurs, reducing the waiting time while maintaining reliability through pre-prepared synchronized data.
2Ease of operation
If the mobile phone buffers data for all channels, then the channel switching smoothness is improved, but the memory load increases
Solution Approach 1:
The patent applies local quality by differentiating the buffering strategy based on channel characteristics and switching patterns. Instead of uniformly buffering all channels, the system selectively buffers data for the current channel and potentially adjacent channels that are more likely to be switched to, optimizing memory usage while maintaining smooth switching for commonly accessed channels.
Solution Approach 2:
The patent applies partial action by buffering only the necessary portion of channel data rather than complete data for all channels. The system buffers data for the current channel and selectively buffers additional channels based on switching probability, reducing overall memory load while maintaining adequate buffering for smooth switching operations.
3Reliability
If the mobile phone executes synchronization processing and data interpretation before channel switching, then the digital broadcasting reception reliability is improved, but the channel switching speed decreases
Solution Approach 1:
The patent applies preliminary action by executing synchronization processing and data interpretation in advance for the current channel and potentially adjacent channels before channel switching occurs. This pre-processing ensures that when channel switching is initiated, the necessary synchronization and interpretation work has already been completed or is in progress, maintaining reliability while improving switching speed.
Data Source
AI summary
Provided is a display method which can avoid the load increase and display rapidly the video of the selected channel. The display method includes adjusting a timing, in which a video is displayed based on a predetermined reference frame received and decoded at first after channel selection, toward shifting earlier than a time originally displaying the video based on a time information attached to the reference frame.