3D Optical Memory Multiplex Recording for Authentication Data
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Solution Overview
Problem
Conventional 2D memory technologies require additional data recording whenever authentication data is updated, leading to inefficiencies in data recording and authentication processes due to increased comparison times with growing storage data, and lack the capability for high-precision and rapid data recording and restoration.
Innovation Solution
The use of 3D optical memory that splits recording and restoration light into multiple components, allowing for multiplex recording and restoration of storage data through varying waveforms, wavelengths, phases, and light source rotations, enabling parallel processing across different directions and coordinates within the 3D optical memory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If 2D memory is used to store authentication data, then data can be stored, but additional data recording is required whenever authentication data is updated
Solution Approach 1:
The patent transitions from 2D memory to 3D optical memory, utilizing the third dimension (depth) to store multiple authentication data sets simultaneously at different spatial locations and focal depths. This dimensional expansion allows multiple data versions to coexist without requiring sequential overwriting, thereby eliminating the time loss associated with additional recording operations.
Solution Approach 2:
The patent implements a hierarchical storage structure where authentication data are nested at different focal planes within the 3D optical memory. Multiple authentication data sets are stored concentrically or layeredly, with each layer accessible through focal adjustment. This nesting allows efficient retrieval of any authentication data version without requiring complete re-recording.
2Adaptability or versatility
If more authentication data is stored in 2D memory, then authentication coverage increases, but comparison time increases proportionally
Solution Approach 1:
By storing authentication data in 3D space with multiple focal planes, the system can rapidly switch between different data sets through focal adjustment rather than sequential access. This spatial organization enables parallel or near-parallel comparison capabilities, as multiple authentication templates are accessible simultaneously at different depths, dramatically reducing comparison time while increasing capacity.
Solution Approach 2:
The patent segments authentication data into distinct spatial regions and focal planes within the 3D memory. This segmentation allows the system to divide and conquer the comparison task by activating only relevant data segments based on authentication requirements, rather than processing the entire data set sequentially, thus reducing comparison time while maintaining high capacity.
3Manufacturing precision
If conventional 2D optical memory is used, then data recording is possible, but high-precision multiplex recording cannot be achieved
Solution Approach 1:
The patent utilizes 3D optical memory with controlled focal planes to achieve multiplex recording. By recording data at different focal depths and spatial coordinates, the system creates highly precise, multi-layered data structures. The third dimension provides an additional degree of freedom for data separation and retrieval, enabling high-precision multiplex recording that cannot be achieved in 2D space.
Solution Approach 2:
The patent employs multiple recording parameters including wavelength, phase, amplitude, and focal position to encode and differentiate multiple data sets within the 3D memory. By varying these optical parameters, the system achieves high-precision multiplex recording where each data set is distinguishable through its unique parameter combination, significantly enhancing recording precision while managing device complexity through systematic parameter control.
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
This approach enables high-precision, rapid, and convenient data recording and authentication by utilizing 3D optical memory for multiplex data storage and retrieval, reducing the need for additional data recording during updates and enhancing authentication efficiency.
Implementation Method 1
splits recording and restoration light into multiple components
Implementation Method 2
multiplex recording and restoration of storage data through varying waveforms, wavelengths, phases, and light source rotations
Implementation Method 3
enabling parallel processing across different directions and coordinates within the 3D optical memory
Data Source
AI summary
A data recording apparatus and method using three dimensional (3D) optical memory and an authentication apparatus and method using 3D optical memory are provided. The data recording apparatus includes a recording excitation light splitting unit, a condition storage unit, and a data recording unit. The recording excitation light splitting unit splits recording excitation light into first split light and second split light. The condition storage unit stores recording conditions including information about the waveforms, wavelengths and phases of the split light and information about an arrangement of reflection mirrors configured to reflect the split light. The data recording unit records storage data by making the split light incident on the 3D optical memory through the reflection mirrors under the recording conditions.