Moving Picture File Server Segmentation for Transmission Speed
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Solution Overview
Problem
Existing moving picture file transmission systems require significant time and memory resources to transmit files to client terminals, as they need to generate multiple formats for various client models, leading to prolonged waiting times and large memory requirements.
Innovation Solution
A moving picture file transmitting server that converts only the leading segment of a moving picture file to match the client terminal's specifications, allowing for immediate transmission and reducing storage needs, while converting subsequent segments during transmission based on client requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If moving picture files are generated beforehand for every model of client terminal, then the files can be transmitted immediately without conversion time, but a very large number of types of moving picture files must be prepared requiring large memory area
Solution Approach 1:
The patent divides the moving picture file into multiple segments (leading segment and succeeding segments). Only the leading segment is converted and stored in advance for each client terminal model, while succeeding segments are converted on-demand. This segmentation allows immediate transmission of the leading segment while avoiding the need to store all segments in all formats, significantly reducing memory requirements while maintaining fast transmission capability.
2Quantity of substance
If a moving picture file is generated in response to a request from a client terminal, then memory area can be kept small, but considerable time is required before the moving picture file can be transmitted
Solution Approach 1:
The patent performs preliminary conversion and storage of the leading segment for each client terminal model. When a request is received, the leading segment is already prepared and can be transmitted immediately without conversion time. This preliminary action eliminates the waiting time that would otherwise be required to convert the file in response to the request, while keeping memory usage low by only storing the leading segment in multiple formats.
3Adaptability or versatility
If multiple formats of moving picture files are supported and converted to conform to the destination scheme, then compatibility with various client terminals is improved, but the time to generate and transmit the file increases
Solution Approach 1:
The patent applies different quality levels of conversion to different parts of the file. The leading segment is fully converted and optimized for the specific client terminal model, ensuring perfect compatibility. Succeeding segments are converted on-demand based on the client's specifications. This local quality approach ensures format compatibility for the critical leading segment while allowing flexible conversion of succeeding segments, maintaining both compatibility and transmission speed.
Data Source
AI summary
A moving picture suitable for display on a mobile telephone is displayed comparatively quickly. When a moving picture is requested, a leading segment of the moving picture is converted. The leading segment has an amount of data which, after the conversion, is less than the amount of data that is displayable on the mobile telephone that issued the request. A succeeding segment, which can be converted while the leading segment is being transmitted to the mobile telephone and viewed by the user of the mobile telephone, is converted. If there is a request for the succeeding segment after the leading segment is viewed, the conversion of the succeeding segment will be finished by the time of the request for succeeding segment. As a result, the succeeding segment can be transmitted to the mobile telephone quickly, and it can be viewed rapidly.