Content Reproduction Latency Reduction via Header Pre-caching
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Solution Overview
Problem
The existing methods for sharing media contents between devices, such as those with DLNA function, result in delayed reproduction time due to the sequential request and transmission of headers and content data, which prolongs the time required for content reproduction.
Innovation Solution
A method and apparatus where the contents receiving device pre-receives headers from the contents providing device and reproduces selected contents using the already received header and content data, thereby reducing the overall reproduction time by eliminating the need for simultaneous header and data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the contents receiving device sequentially requests and receives headers and contents data from the contents providing device, then the transmission process is simple and reliable, but the reproduction time is delayed
Solution Approach 1:
The patent applies preliminary action by having the contents receiving device receive and store headers of multiple contents in advance before any content is selected. When a content is selected, if its header is already received, the device can immediately start reproduction without waiting for header transmission, thus reducing reproduction time while maintaining a relatively simple communication protocol
2Ease of operation
If the contents receiving device waits for header transmission before reproducing contents, then the communication sequence is simple, but the user experience is degraded due to delay
Solution Approach 1:
The system performs preliminary reception of content headers in the background before user selection. When the user selects a content, the header is likely already received and stored, eliminating the waiting time and providing immediate playback, thus improving user experience without complicating the interaction model
Solution Approach 2:
The patent implements continuous useful action by having the contents receiving device continuously receive and store headers of multiple contents in the background during idle time. This continuous preparatory action ensures that when a content is selected, the header is ready for immediate use, eliminating delays and maintaining smooth continuous operation
Data Source
AI summary
A method and apparatus for shortening a time for a contents receiving device to reproduce contents provided from a contents providing device. The method includes receiving headers of respective contents in advance from a contents providing device, verifying whether a header of selected contents is already received when the corresponding contents are selected, receiving contents data of the selected contents from the contents providing device when the header of the selected contents is already received, and reproducing the selected contents using the received corresponding header and contents data.