Information Processing Device Content Transmission Method
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Solution Overview
Problem
Existing content distribution systems for cellular phones face challenges in continuous content reproduction due to intermittent connectivity with the management server, limiting legitimate distribution opportunities and user access to contents.
Innovation Solution
An information processing device and method that exchanges communication state information with another device to select optimal content transmission methods based on connectivity to the server, allowing encryption key management and payment processing to facilitate secure and efficient content transfer between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If content distribution requires continuous server connectivity for synchronization, then copyright protection and billing control are improved, but content distribution opportunity and user access are reduced
Solution Approach 1:
The system performs preliminary actions by having the reproduction device connect to the server before content reproduction to receive and store reproduction authority and synchronization information. This advance preparation enables the device to reproduce content offline without continuous server connectivity, thus maintaining copyright protection while enabling distribution opportunities.
Solution Approach 2:
The server acts as an intermediary that provides synchronization information and reproduction authority to the reproduction device. The device uses this intermediary information to autonomously control content reproduction and manage synchronization status without requiring continuous server connection, balancing copyright protection with offline distribution capability.
2Speed
If content is transmitted before payment processing, then distribution speed and user convenience are improved, but security and copyright protection are reduced
Solution Approach 1:
The system performs preliminary payment processing and authentication before content transmission. The reproduction device communicates with the server to complete billing and receive reproduction authority in advance, ensuring security is maintained while enabling fast offline content distribution without requiring authentication during reproduction.
3Ease of operation
If near-field wireless communication is used for direct device-to-device transfer, then ease of operation and distribution efficiency are improved, but control over reproduction authority and billing are reduced
Solution Approach 1:
The server acts as an intermediary that pre-configures reproduction authority information before devices engage in direct near-field communication. This allows simple device-to-device content transfer while the server maintains backend control over reproduction rights, billing status, and authorization, preventing loss of control despite simplified user operation.
Data Source
AI summary
An information processing device includes: an exchange unit configured to exchange information concerning a communication state with, respect to a server using a first communication with another information processing device which becomes the other party of communication in a second communication; and a method selection unit configured to select a transmission/reception method of content data with respect to another information processing device using the second communication based on the information exchanged by the exchange unit in accordance with the communication state of each device with respect to the server using the first communication.