Consumable Chip Instruction Circuit for Read-Write Signal Detection
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Solution Overview
Problem
Conventional print imaging devices face challenges in accurately determining whether to perform a reading or writing operation on a consumable chip based on the signal transmitted through the signal line, leading to error responses.
Innovation Solution
An operation instruction generating circuit that includes a powering up and initializing module, an intermediate signal generating module, and an instruction generating module, which can differentiate between current source and voltage source signals to accurately generate reading or writing instructions, facilitating timely and accurate responses from the consumable chip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the print imaging device uses a current source and voltage source to communicate with the consumable chip, then data reading and writing operations can be performed, but the consumable chip cannot accurately determine whether a reading or writing operation is intended, leading to error responses
Solution Approach 1:
The patent applies preliminary action by generating an intermediate signal in advance that indicates the operation type (reading or writing) before the actual data operation occurs. The operation instruction generating circuit creates this intermediate signal based on the input signal characteristics, allowing the consumable chip to identify the intended operation beforehand and respond accurately, thus resolving the ambiguity between reading and writing operations.
2Adaptability or versatility
If the consumable chip responds to both current source and voltage source signals, then versatility is improved, but the response accuracy deteriorates due to inability to distinguish operation intent
Solution Approach 1:
The patent introduces an intermediary element - the operation instruction generating circuit that creates an intermediate signal. This intermediate signal acts as a mediator between the input signal (current or voltage source) and the consumable chip's response mechanism. It translates the physical signal characteristics into a clear operational instruction, enabling the chip to accurately distinguish between reading and writing operations while maintaining compatibility with both signal types.
3Productivity
If the print imaging device uses ADC to detect voltage for reading operations, then data can be read from the consumable chip, but the system cannot reliably distinguish between reading and writing signal types
Solution Approach 1:
The patent applies segmentation by separating the signal processing into distinct functional segments: the operation instruction generating circuit segment that identifies operation type, and the ADC detection segment that performs actual data reading. By segmenting the signal handling process, the system can first determine the operation intent through the intermediate signal and then execute the appropriate detection or writing operation, thus improving both productivity and reliability.
Data Source
AI summary
An operation instruction generating circuit and a consumable chip. The operation instruction generating circuit includes: a power-on initialization module, connected to a signal wire and used for generating an initialization signal according to a signal transmitted by the signal wire; a middle signal generating module, connected to the power-on initialization module and the signal wire and used for combining, according to the initialization signal, the signal transmitted by the signal wire to generate a middle signal; and an instruction generating module, connected to the power-on initialization module and the middle signal generating module and used for generating an operation instruction according to the initialization signal and the middle signal or according to the initialization signal, the middle signal, and the signal transmitted by the signal wire. By the operation instruction generating circuit, the consumable chip is enabled to accurately respond to actions of a printing imaging device in time.