Cartridge Chip Primary Backup Storage Segmentation
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Solution Overview
Problem
In print imaging devices, existing cartridge chips lack the ability to record operations performed by the device without access restrictions, leading to potential errors and inability to provide auxiliary information during maintenance, while maintaining the uniqueness of stored information.
Innovation Solution
A cartridge chip with a primary storage area and a backup storage area, where instructions are processed to write data to the primary area and update the backup area according to a preset rule, allowing unrestricted recording of operations while ensuring data uniqueness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access restrictions are imposed on the cartridge chip to maintain information uniqueness, then information security is improved, but the ability to record operations is reduced
Solution Approach 1:
The cartridge chip memory is divided into multiple storage areas with different access permissions (read-only area, read/write area, write-once area). This segmentation allows simultaneous implementation of information security (through restricted areas) and operation recording (through permitted areas), resolving the contradiction between access restrictions and recording capability.
2Loss of information
If the cartridge chip allows unrestricted writing, then operation recording capability is improved, but information uniqueness is compromised
Solution Approach 1:
Different regions of the cartridge chip memory are assigned different access qualities and permissions. The read-only area maintains strict information uniqueness, while the read/write area allows flexible operation recording. This local differentiation resolves the contradiction by applying appropriate access control to different functional regions.
3Reliability
If multiple storage areas with access restrictions are used, then information security is improved, but device complexity is increased
Solution Approach 1:
The memory is segmented into distinct areas with clear access control rules, which simplifies the management of information security compared to implementing complex access control logic across a unified memory space. The segmentation provides a straightforward method to enforce security requirements while maintaining implementability.
Data Source
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AI summary
The present invention provides a storage medium, a data processing method and a cartridge chip using same. The cartridge chip includes a primary storage area and a backup storage area. The data processing method includes: determining whether a received instruction is a read instruction or a write instruction; and if the received instruction is a write instruction, writing, according to an address included in the write instruction, data carried in the write instruction to a location to which the address points in the primary storage area, and determining, according to a preset rule, whether data in the backup storage area needs to be updated. According to the storage medium, the data processing method and the cartridge chip using same provided in the present invention, each piece of written information can be recorded in the primary storage area in time. To ensure the uniqueness of information in the cartridge chip, information in the backup storage area is updated only when the preset rule is met. In this way, operations performed by a print imaging device on the cartridge chip can be unrestrictedly recorded, and the uniqueness of the information in the cartridge chip can be ensured.