Multimedia Receiving Apparatus Synchronizing Time Codes
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Solution Overview
Problem
Existing broadcasting networks face challenges in transmitting high-data-size content such as 3D, multi-angle, and ultra-high definition (UHD) content due to bandwidth limitations, and synchronizing multimedia data from different transmission networks is difficult due to mismatched system clocks.
Innovation Solution
A receiving apparatus and method that synchronizes multimedia data from different paths by using time codes and time stamp information, processing streams from both broadcasting networks and IP networks, and correcting time stamp information to render synchronized video frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple independent encoders are used to transmit data through different transmission networks, then the ability to transmit content through diverse networks is improved, but synchronization between the data streams deteriorates due to mismatched system clocks
Solution Approach 1:
The patent introduces a synchronization signal as an intermediary element that is transmitted alongside the multimedia data streams. This synchronization signal acts as a mediator between the independent encoders, providing a common time reference that enables the receiving apparatus to align and synchronize the asynchronous streams from different transmission networks.
Solution Approach 2:
The patent changes the timing parameter of the received data streams by adjusting their presentation time stamps based on the synchronization signal. This parameter adjustment allows the system to compensate for the clock mismatches between different encoders and achieve proper synchronization despite the independent encoding processes.
2Ease of manufacture
If existing broadcasting networks are used to transmit high-data-size content, then cost is reduced by reusing existing equipment, but bandwidth limitations make transmission of high-data-size content difficult
Solution Approach 1:
The patent segments the content transmission into two parts: reference multimedia data is transmitted through the existing broadcasting network, while additional multimedia data is transmitted through a different network path. This segmentation allows the system to leverage the cost-effective existing broadcasting infrastructure for part of the transmission while using alternative paths for the remaining data, effectively overcoming the bandwidth limitation of a single network.
Data Source
AI summary
Method and apparatus for processing multimedia data received via different networks by synchronizing time stamps of video frames of multimedia data received via the different networks using time codes in the multimedia data.