Removable Storage Controller with Replaceable Memory Chips
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Solution Overview
Problem
Current removable storage devices have limited storage capacity and require replacement for increased storage, leading to inconvenience and data security risks during chip replacement, as well as wastage due to the need to discard entire devices even if memory chips are functional.
Innovation Solution
A method for managing data in removable storage devices with replaceable memory chips, involving the reorganization of file systems and the use of disk descriptors to ensure seamless operation and data security, allowing for the expansion and updating of storage capacity while maintaining data integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If memory chips are made replaceable in removable storage devices, then storage capacity can be expanded and updated, but data security and proper operation may be compromised during chip replacement
Solution Approach 1:
The controller performs preliminary actions before chip replacement by detecting whether the storage device is in standby state (no read/write operations) and whether the host system is in sleep mode. Only when both conditions are met does the controller enable chip replacement, preventing data loss during active operations
Solution Approach 2:
The controller continuously monitors the operational state of the storage device and host system, providing feedback signals to determine when chip replacement is safe. The system checks for standby status and sleep mode conditions, and only permits replacement when feedback indicates safe conditions
2Reliability
If entire removable storage device is discarded when any part is damaged, then data security is maintained, but waste increases and convenience decreases
Solution Approach 1:
The storage device is segmented into replaceable memory chips and a non-replaceable controller unit. When chips are damaged, only the chips need replacement rather than the entire device, allowing users to retain the controller and undamaged components
Solution Approach 2:
The system allows recovery of the controller unit and undamaged memory chips by enabling selective replacement of only the damaged chips, rather than discarding the entire storage device
3Ease of operation
If memory chips are replaced without proper file system reorganization, then replacement process is simple, but data loss and malfunction occur
Solution Approach 1:
The controller performs preliminary file system reorganization and parameter updates before chip replacement occurs. This includes rewriting partition information, file allocation tables, and other critical data structures to reflect the new chip configuration, ensuring the file system remains intact after replacement
Data Source
AI summary
The invention provides a method for managing the data in the removable storage device. The method includes: applying or organizing or establishing or re-building the file managing system of the storage medium of said removable storage device according to the uses of said memory chips; and utilizing said file managing system to perform the corresponding processing in said memory chips according to the operation instructions of the host system, which is connected with said file managing system. By applying the method for managing the data in the removable storage device, which the invention provides, the capacity of the removable storage device can be extended, and the storage medium can be updated, thus the data security, the functions and the convenience of the system are increased.