Contents Transfer System Using Pre-Compression to Reduce Download Time
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Solution Overview
Problem
The existing contents rental system faces challenges in user convenience and availability due to long download times for high-definition movie content, which limits the number of users and poses financial risks for rental shops, as well as user dissatisfaction with prolonged download times.
Innovation Solution
A contents transfer system that uses a transmitter to compress and transmit content via a network to a terminal, which outputs the content to portable recording media, incorporating encryption for security and efficient compression algorithms like MPEG2, MPEG4, and H.264 to reduce download time and increase user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If contents are downloaded from server to HDD, then user convenience and availability are improved, but download time becomes excessively long for high-definition movies
Solution Approach 1:
The system performs preliminary compression of contents using efficient compression algorithms (MPEG2, MPEG4, H.264) before transmission. This pre-compression action reduces the data size that needs to be transferred, thereby shortening the download time while maintaining user convenience in accessing contents.
Solution Approach 2:
The invention changes the parameter of data compression ratio by employing advanced compression algorithms. By transforming the contents into a more compressed format before transmission, the system reduces the amount of data to be transferred over the network, directly addressing the long download time issue while preserving ease of operation.
2Quantity of substance
If rental shops use HDD-based rental system, then capacity is increased, but acquisition of sufficient users becomes difficult due to long download times
Solution Approach 1:
The system changes the compression parameter to achieve higher compression ratios, which reduces the transmission time for contents. This makes the rental service more attractive to users, thereby improving user acquisition rate while maintaining the high storage capacity advantage of HDD-based systems.
Solution Approach 2:
The invention replaces the mechanical transfer method (direct file copying) with a more efficient process that incorporates advanced compression algorithms during transmission. This substitution reduces the time required for contents delivery, making the service more productive and attractive to potential users.
3Manufacturing precision
If uncompressed or lightly compressed contents are transmitted, then content quality is maintained, but transmission time and download time increase significantly
Solution Approach 1:
The system optimizes compression parameters to achieve the best balance between quality and compression ratio. By carefully adjusting compression settings, the system maintains acceptable content quality while significantly reducing transmission time, thus resolving the contradiction between quality preservation and fast delivery.
Data Source
AI summary
A contents transfer system which includes a transmitter for transmitting a compressed contents via a network, and a terminal for inputting the contents transmitted from the transmitter via the network and outputting the input contents to a recording/reproducing media according to user's specification. A user can acquire the contents within the recording/reproducing media.