Spherical Holographic Storage Reducing Mechanical Latency
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Solution Overview
Problem
Conventional holographic storage equipment with flat, transparent disks requires complex electromechanical devices for data access, leading to latency, heat buildup, and potential errors due to extensive mechanical movement.
Innovation Solution
A curved holographic storage sphere with an optical assembly that minimizes travel by orienting from a central location, reducing mechanical movement and heat generation, and optimizing data access times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flat holographic storage disk is used with conventional electromechanical devices, then data can be stored and retrieved, but mechanical movement causes latency, heat buildup, and wear
Solution Approach 1:
The patent applies spheroidality by replacing the conventional flat holographic storage disk with a spherical storage medium. This curvature allows the optical assembly to access data from a central position, eliminating the need for extensive mechanical travel along the disk surface. The spherical geometry enables direct optical access to any data location through angular positioning, dramatically reducing access latency and mechanical wear while improving storage reliability.
Solution Approach 2:
The patent substitutes the conventional electromechanical positioning system with an optical assembly that uses angular orientation for data access. Instead of mechanical devices traveling along the disk surface, the optical system uses beam steering and angular positioning to access data locations on the spherical medium. This replacement eliminates mechanical movement-related latency, heat buildup, and wear, while maintaining data retrieval capability.
2Ease of operation
If electromechanical devices traverse long distances to access data locations on a flat disk, then data can be accessed, but mechanical movement generates heat and wear
Solution Approach 1:
The spherical storage medium enables the optical assembly to access any data location from a central position through angular positioning. This eliminates the need for electromechanical devices to traverse long distances along the disk surface, significantly reducing mechanical movement and associated heat generation. The curved geometry allows direct optical access without extensive mechanical travel, improving ease of operation while minimizing temperature rise.
Solution Approach 2:
The patent replaces the electromechanical positioning system with an optical beam steering system that uses angular orientation for data access. This substitution eliminates mechanical movement that generates heat and wear, while maintaining efficient data access capability. The optical system achieves data access through beam direction control rather than mechanical translation, thereby reducing thermal effects.
3Quantity of substance
If a flat holographic storage disk is used, then data can be stored, but complex electromechanical devices are required for data access
Solution Approach 1:
The spherical storage medium geometry simplifies the data access mechanism by allowing the optical assembly to position itself centrally and access any data location through angular orientation. This eliminates the need for complex electromechanical positioning devices required by flat disks, while maintaining the ability to store and access large quantities of data. The curved surface enables simpler mechanical or optical positioning systems.
Solution Approach 2:
The patent substitutes complex electromechanical positioning devices with an optical assembly that uses beam steering and angular positioning for data access. This substitution dramatically reduces device complexity while maintaining storage capacity. The optical system achieves data access through directional control of light beams rather than complex mechanical translation and positioning mechanisms.
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 configuration reduces latency and mechanical stress, enhancing data access efficiency and storage capacity while minimizing heat generation and wear, thus improving storage reliability.
Implementation Method 1
the laser beam source emits a beam of laser light
Implementation Method 2
The spatial light modulator encodes a data pattern within the signal beam... The signal beam and the reference beam then intersect each other at a relatively-narrow location of the holographic storage disk. Photosensitive material within the holographic storage disk reacts to the intersection of these beams and, as a result, stores the data pattern three-dimensionally as layered digital pages (i.e., a hologram) at that location.
Implementation Method 3
a flat, transparent, holographic storage disk remains stationary during the writing and reading process... during the reading process, light from one side of the holographic storage disk shines on a hologram within the disk (i.e., layered digital pages) and a sensor on the other side of the disk reads the refracted light to re-construct the data pattern
Data Source
AI summary
An optical storage system includes a frame (e.g., a rack-mount drawer), an environmental assembly (e.g., a power and cooling subsystem) supported by the frame, and a set of optical storage devices coupled to the environmental assembly. Each optical storage device has a base, a storage medium (e.g., a sphere-shaped holographic data storage structure) disposed on the base, and an optical assembly coupled to the base. The storage medium has a curved surface configured to store data in a digital manner thereon. The optical assembly is configured to optically write the data to and read the data from the curved surface of the storage medium.