Volatile Memory Browsing Terminal for Secure Content Erasure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing browsing terminals face security issues due to the potential for unlawful redistribution of contents data, especially when lost, as they often store data in non-volatile memory, making it difficult to prevent unauthorized access and complicating fee-charging systems.
Innovation Solution
The browsing terminal uses volatile memory to store contents data, which is automatically erased when the secondary battery runs out, ensuring that data is deleted after a day, thereby enhancing security and simplifying fee-charging processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If contents data is stored in non-volatile memory, then data retention is improved, but security against unlawful redistribution deteriorates
Solution Approach 1:
The patent changes the storage medium parameter from non-volatile memory to volatile memory. This parameter change ensures that contents data is automatically erased when power is removed, preventing unlawful redistribution while maintaining data retention during active use through the volatile memory's characteristics
Solution Approach 2:
The patent employs volatile memory as a temporary, disposable storage medium for contents data. The data has a limited lifetime tied to the power supply state, being automatically destroyed when power is removed, thus preventing permanent storage and unlawful redistribution while serving its purpose during active browsing
2Reliability
If authentication and encryption systems are employed, then security is improved, but device complexity deteriorates
Solution Approach 1:
The patent extracts the security mechanism from complex authentication/encryption systems and implements it through the inherent characteristics of volatile memory. The security function is achieved by simply storing data in volatile memory that automatically erases on power loss, eliminating the need for separate authentication servers, encryption modules, and related complex infrastructure
3Productivity
If fee-charging according to both charging amount and download amount is implemented, then revenue control is improved, but processing complexity deteriorates
Solution Approach 1:
The patent merges the fee-charging mechanisms into a single unified system based on charging amount. By implementing volatile memory storage, the system automatically prevents unauthorized downloads, eliminating the need for separate download-amount tracking and simplifying the fee-charging process to depend only on charging amount
Data Source
AI summary
To provide a browsing terminal and the like with high security, which can effectively prevent contents data stored in a terminal from being stolen unlawfully by a third party even if the terminal is accidentally lost. The browsing terminal includes: a receiving part for receiving contents data; a volatile memory for storing the received contents data; a display device with a memory function, which displays the contents data stored in the volatile memory; and a secondary battery for supplying power to the volatile memory and the display device.