OTP and RW Storage Segmentation for Data Archiving
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Solution Overview
Problem
Data processing systems in mobile devices face limitations in storage capacity, cost, and physical size, particularly due to the inefficiencies in utilizing one-time programmable (OTP) and rewriteable (RW) storage, where OTP storage capacity is lost when modified, and there is a need to optimize storage management to balance cost and flexibility.
Innovation Solution
A memory controller manages storage by performing an information archive operation, transferring less frequently accessed data from RW to OTP storage when capacity is low, and implementing a conditional OTP write operation based on access history and file characteristics to optimize storage usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If OTP storage is used to reduce cost, then storage cost is reduced, but storage capacity is lost when data is modified
Solution Approach 1:
The storage system is segmented into two distinct types: OTP storage for cost-effective static data and RW storage for flexible frequently-accessed data. This segmentation allows each storage type to be optimized for its specific use case, resolving the contradiction between cost reduction and capacity retention.
Solution Approach 2:
The system dynamically manages data placement between OTP and RW storage based on access patterns. Frequently accessed data is automatically moved to RW storage, while infrequently accessed data remains in OTP storage, making the storage allocation adaptive and optimizing both cost and capacity utilization.
2Adaptability or versatility
If RW storage capacity is increased to maintain flexibility, then data flexibility is improved, but physical size and cost increase
Solution Approach 1:
By segmenting the storage system into OTP and RW portions, the patent enables a compact physical design where only the necessary RW capacity is provisioned for flexible data, while OTP provides cost-effective bulk storage, thereby reducing overall physical size while maintaining flexibility.
Solution Approach 2:
The dynamic data migration capability allows the system to adapt RW storage allocation based on actual usage patterns, ensuring that physical RW storage capacity is optimized to match real flexibility requirements rather than provisioning for maximum potential flexibility.
3Volume of stationary object
If OTP storage capacity is reduced to decrease physical size, then device size is reduced, but storage capacity loss increases when modification is needed
Solution Approach 1:
Segmenting storage into OTP and RW types allows the system to minimize OTP capacity while maintaining overall storage efficiency. Frequently accessed data is placed in RW storage, reducing the amount of data that would otherwise occupy OTP space and be lost upon modification.
Solution Approach 2:
The dynamic management system proactively identifies data suitable for archiving to OTP storage based on access patterns, ensuring that only truly static data occupies OTP space. This minimizes information loss when OTP capacity is constrained, as the system continuously optimizes data placement.
Data Source
AI summary
An information storage arrangement that combines rewriteable storage with one-time programmable (OTP) storage is managed in a manner that makes judicious use of the OTP storage. It is therefore possible to exploit the economic advantage associated with OTP storage, while also avoiding storage capacity losses that would otherwise be associated with OTP storage.