Magnonic Active Ring Memory Parallel Read-Out

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Solution Overview

Problem

Existing magnetic memory devices can only read out one magnetic bit at a time, limiting the speed of large magnetic database searches.

Innovation Solution

The development of active ring circuits that combine electric and magnonic parts, allowing for parallel read-out and processing of magnetic bits through spin waves, which can propagate through multiple routes in a magnonic matrix.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If traditional magnetic memory devices are used, then device complexity is low, but read-out speed is limited to one bit at a time

Engineering Contradiction:
Improveread-out speedVSAvoiddevice complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The memory device is divided into multiple independent magnetic bits arranged in an array, where each bit can be read out simultaneously through separate waveguide paths. This segmentation enables parallel read-out of multiple bits, increasing read-out speed from sequential (one bit at a time) to parallel (multiple bits simultaneously).

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Spin waves are introduced as an intermediary carrier to transfer magnetic bit information from the magnetic bits through waveguide paths to detection elements. This intermediary mechanism enables non-contact, parallel read-out of multiple magnetic bits simultaneously, overcoming the limitation of traditional sequential read-out methods.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Speed

If parallel read-out is implemented, then read-out speed increases, but power consumption increases

Engineering Contradiction:
Improveread-out speedVSAvoidpower consumption
Core Design Contradiction:
SpeedVSUse of energy by moving object

Solution Approach 1:

The system uses periodic oscillation of spin waves at a resonant frequency to enable parallel read-out. By tuning the detection elements to resonate at a specific frequency, the system can read multiple bits simultaneously using periodic spin wave oscillations, achieving high-speed read-out while maintaining controlled power consumption through resonant enhancement.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system changes the frequency parameter of the read-out signal to match the resonant frequency of the spin wave system. By adjusting the operating frequency to coincide with the natural oscillation frequency of the magnetic bits and waveguides, the system achieves enhanced read-out efficiency and speed while optimizing power consumption through resonant coupling.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12340856B2Magnonic active ring memory and logic
Publication Date: 2025.06.24 RGT UNIV OF CALIFORNIA
  • US12340856B2 patent drawing
  • US12340856B2 patent drawing
  • US12340856B2 patent drawing

AI summary

An electronic device and associated methods including magnonic and electronic circuitry are disclosed. In one example, an array of magnonic elements are interconnected to form a network of spin wave paths, and an electronic pathway is connected to the network of spin wave paths to form a ring circuit.