Non-Volatile Logic Module Using Bipolar Resistive Memory
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Solution Overview
Problem
Logic modules lose output data during power supply failures, whether accidental or deliberate, which can disrupt operations and result in data loss.
Innovation Solution
A logic module incorporating a bipolar resistive memory system that allows for the saving and restoration of signals, utilizing a combination of ohmic resistance and bipolar resistive memory elements with a common electrode, enabling three operating modes: inactive, save, and restore, to maintain data integrity during power interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power supply is continuously maintained to preserve output data, then data integrity is improved, but energy consumption increases
Solution Approach 1:
The patent applies preliminary action by saving the output data to non-volatile memory elements (first and second elements) before power supply failure occurs. The logic module proactively stores data in these memory elements during normal operation, so that when power is cut, the data is already preserved and can be restored without requiring continuous power supply to maintain data integrity.
Solution Approach 2:
The patent uses non-volatile memory elements (first element and second element) as intermediaries between the logic circuit output and the power supply system. These memory elements act as a buffer that decouples the data storage function from the power supply status, allowing data to be preserved during power interruptions and restored when power returns, thus solving the contradiction between data integrity and energy consumption.
2Use of energy by moving object
If power supply is cut to reduce consumption, then energy consumption is reduced, but data is lost
Solution Approach 1:
The system performs preliminary data saving to non-volatile memory elements before power supply cutoff. The logic module is configured to transfer output data to the first and second elements during normal operation, ensuring that when power is deliberately cut to reduce consumption, the data has already been preserved in the non-volatile memory and can be restored after power recovery.
Solution Approach 2:
Non-volatile memory elements serve as intermediary storage between the logic circuit and the power supply system. These intermediaries maintain data persistence independent of power supply status, enabling the system to cut power for energy savings while the intermediaries preserve the data, preventing information loss during power interruptions.
3Reliability
If non-volatile memory elements are added to save data, then data persistence is improved, but device complexity increases
Solution Approach 1:
The patent merges the data storage function with the existing logic module output structure by integrating first and second non-volatile memory elements directly into the output path. The memory elements are connected to receive the output signal from the logic circuit, combining the logic function and storage function in a unified structure, thereby reducing overall system complexity compared to adding separate storage systems.
Solution Approach 2:
The non-volatile memory elements serve multiple functions: they act as data storage elements during power interruptions, as restoration elements when power returns, and as part of the normal output path during powered operation. This multi-functionality reduces the need for separate dedicated storage components, thereby managing device complexity while achieving data persistence.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The logic module effectively saves and restores signals during power cuts, ensuring data persistence and reducing global consumption by allowing deliberate power reduction while maintaining operational functionality.
Implementation Method 1
a bipolar resistive memory (or bipolar memory point) means a memory with a bipolar operation during which a first voltage may be applied to it to change from a high resistance OFF state to a low resistive ON state, and a second voltage may be applied to it with a polarity different from the polarity of the first voltage, to change from the low resistive ON state to the high resistance OFF state
Data Source
AI summary
A logic module includes a device for implementing a logic function the device including at least one input and at least one output, the output at least partially representing the result of the logic function; at least one first element including at least one resistance state, at least one second element formed by a bipolar resistive memory; the first element and the second element having a common electrode connected to the output.