Cartridge Memory Segmentation for Refill Wear Reduction
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Solution Overview
Problem
Reusable cartridges with memory face data storage issues due to frequent rewriting, leading to memory deterioration, as initial value data is rewritten each time the cartridge is refilled, causing defects in data storage.
Innovation Solution
A memory system with a first type storage area for each one-time use period and a second type storage area for the entire use period, where each one-time use period has multiple individual areas for different data storage, reducing memory deterioration by spreading data writing across these areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If initial value data is rewritten into the memory each time the cartridge is refilled, then the data storage function is maintained, but the memory deteriorates due to frequent rewritings
Solution Approach 1:
The memory is divided into multiple storage areas (first storage area, second storage area, third storage area) that can be selectively used. Different storage areas are employed depending on whether the cartridge is in initial use or refill scenarios, thereby distributing the wear across multiple regions rather than continuously rewriting the same location.
Solution Approach 2:
The system pre-configures multiple storage areas and establishes a determination mechanism that selects appropriate storage areas before rewriting operations occur. This preliminary setup allows the system to avoid frequent rewritings of the same memory location by anticipating refill scenarios and using alternative storage areas.
2Device complexity
If the same storage area is used for all use periods, then the memory structure is simple, but the memory deteriorates due to repeated rewritings in the same area
Solution Approach 1:
The memory is segmented into multiple functional storage areas with distinct purposes: first storage area for initial use, second storage area for refill scenarios, and third storage area as backup or alternative. This segmentation increases structural complexity but significantly improves reliability by distributing rewrite operations across multiple areas.
Solution Approach 2:
Different storage areas are assigned different qualities or characteristics based on their intended use. The first storage area is optimized for initial data storage, while the second and third areas are designed to handle refill scenarios. This local differentiation allows each area to be optimized for its specific function, improving overall reliability.
3Ease of operation
If a single storage area is used for the entire cartridge lifecycle, then the memory management is simple, but the memory cannot withstand multiple refill cycles
Solution Approach 1:
The memory management system is segmented into multiple storage areas that can be independently managed. The determination mechanism selectively activates appropriate storage areas based on cartridge usage status, enabling the system to support multiple refill cycles while maintaining manageable complexity through automated selection logic.
Solution Approach 2:
The memory management approach is made dynamic by implementing a determination mechanism that adapts storage area selection based on real-time cartridge usage conditions. This dynamic behavior allows the system to transition between different storage areas as the cartridge moves through its lifecycle, thereby supporting multiple refill cycles while maintaining ease of operation through automated adaptation.
Data Source
AI summary
A memory includes: a first type storage area used in a one-time use period from when a liquid is filled into a cartridge to when consumption of the liquid is completed; and a second type storage area used in an entire use period of the cartridge, which is a set of one-time use periods, in which the first type storage area has a plurality of individual areas in which a different area is used in each one-time use period.