Imaging Cartridge Chip Serial Number Switching via Volatile Memory
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Solution Overview
Problem
Existing imaging cartridge chips face challenges in switching serial numbers in real-time due to limited response time and stringent bus timing of imaging devices, leading to illegitimacy issues and resource waste.
Innovation Solution
The imaging cartridge chip incorporates a communication module, non-volatile data storage for multiple serial numbers, and a volatile temporary data storage module with multiple units, allowing for rapid switching of serial numbers between volatile storage areas without relying on non-volatile memory loading, thus avoiding bus timing constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If serial number switching is performed by loading from non-volatile memory, then serial number data can be stored permanently, but the switching speed is limited by bus timing and cannot be real-time
Solution Approach 1:
The patent divides the storage system into two segments: non-volatile memory for permanent storage and volatile memory for fast access. This segmentation allows the system to maintain both reliability (through non-volatile storage) and speed (through volatile memory switching) by assigning different functions to each memory type.
Solution Approach 2:
The patent performs preliminary action by pre-loading serial number data from non-volatile memory into volatile memory before it is needed for switching. This ensures that when switching is required, the data is already in fast memory, enabling real-time switching without the delay of loading from non-volatile memory during the critical moment.
2Duration of action of moving object
If multiple serial numbers are stored in non-volatile memory, then legitimacy verification can continue after depletion, but the switching operation requires extra response time that conflicts with bus timing
Solution Approach 1:
The patent introduces volatile memory as an intermediary between non-volatile memory and the serial number output. This intermediary allows rapid switching operations without directly accessing non-volatile memory during the switching moment, thus avoiding the time loss associated with non-volatile memory access while still maintaining access to multiple serial numbers.
3Quantity of substance
If serial number switching is delayed until power-up or between instructions, then non-volatile memory can be used for storage, but real-time switching during communication is not possible
Solution Approach 1:
The patent adds a temporal dimension to the storage hierarchy by using volatile memory for immediate switching needs while maintaining non-volatile memory for permanent storage. This creates a two-layer time structure where fast switching occurs in the volatile layer and persistent storage occurs in the non-volatile layer, enabling both real-time adaptability and long-term data retention.
Data Source
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AI summary
An imaging cartridge chip, an imaging cartridge, and a method for switching imaging cartridge chip serial number. The imaging cartridge chip includes a communication module; a non-volatile data storage module for storing at least two different serial numbers; a volatile temporary data storage module including at least two temporary data storage units; and a control module. The control module is configured to load different serial numbers into corresponding temporary data storage units; to send a serial number in a selected temporary data storage unit to the imaging device; to determine whether the serial number sent to the imaging device passes a legitimacy verification of the imaging device; and when the serial number sent to the imaging device does not pass the legitimacy verification, to send a serial number in another temporary data storage unit to the imaging device.