Optical Medium Dual-Layer Information Embedding

Solution Overview

Problem

Existing optical media management systems face challenges in accurately reading embedded information at startup, as embedded information is either permanently stored in the data layer, making it inflexible, or printed on the outer protective coat, which is susceptible to damage and obscured by size limitations.

Innovation Solution

A method and system that embeds two separate sets of information on different layers of an optical medium, aligned at a fixed reference point, allowing an optical drive to read both sets during initialization, with one set in the data layer and the other on the protective layer, using techniques like stamping, ink marking, or encoding to ensure readability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If embedded information is permanently stored in the data layer by stamping, then durability and protection from damage is improved, but production flexibility deteriorates since each optical medium must have the same embedded information

Engineering Contradiction:

Improvedurability of embedded informationVSAvoidproduction flexibility

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The embedded information is segmented into two separate sets: first embedded information in the data layer and second embedded information on the protective coat. This segmentation allows each layer to serve different purposes - the data layer provides durability while the protective coat enables individual customization, resolving the contradiction between reliability and adaptability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The solution moves from a single-layer embedding approach to a multi-layer approach, utilizing the vertical dimension of the optical medium. By embedding information in both the data layer and the protective coat layer, the system achieves both durability (from the data layer) and flexibility (from the protective coat layer modifications).

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If embedded information is laser cut or ink marked on the outer protective coat, then production flexibility is improved allowing individual printing, but durability deteriorates as the information is susceptible to damage and obscured

Engineering Contradiction:

Improveproduction flexibilityVSAvoiddurability of embedded information

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The embedded information is segmented into two separate sets: first embedded information in the data layer and second embedded information on the protective coat. This segmentation allows each layer to serve different purposes - the data layer provides durability while the protective coat enables individual customization, resolving the contradiction between reliability and adaptability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The solution moves from a single-layer embedding approach to a multi-layer approach, utilizing the vertical dimension of the optical medium. By embedding information in both the data layer and the protective coat layer, the system achieves both durability (from the data layer) and flexibility (from the protective coat layer modifications).

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Ease of manufacture

If a single set of embedded information is used on optical media, then manufacturing simplicity is improved, but adaptability deteriorates as individual identification becomes difficult

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidindividual identification capability

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The embedded information is segmented into two separate sets: first embedded information in the data layer and second embedded information on the protective coat. This segmentation allows each layer to serve different purposes - the data layer provides durability while the protective coat enables individual customization, resolving the contradiction between reliability and adaptability.

Inventive Principle:

Principle #1Segmentation

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 enhances flexibility and durability by allowing individual identification of each optical medium while ensuring accurate reading of embedded information, even as storage densities increase with blue laser systems.

Implementation Method 1

allows retrieval of information by reflection of a focused laser against the altered material to measure the reflected light characteristics

Methodology Applied

Scientific EffectReflection: Reflection

Implementation Method 2

an optical medium stores information by altering the reflective qualities of a data layer material directly with recordable media, or indirectly by the creation of a master for stamped media, with a focused laser

Methodology Applied

Scientific EffectLaser heating: Laser

Data Source

PatentUS7596069B2Optical medium aligned information system and method

Publication Date: 2009.09.29 DELL PROD LP

AI summary

Separate sets of optical medium identification information are embedded in separate aligned layers of the optical medium to allow an optical drive to initiate use of the optical medium with information from both layers. For instance, a first set of identification information is embedded in the data layer of the optical medium and a second set of identification information is embedded on the protective surface layer of the optical medium. The first and second sets of information align so that a mixed signal is provided when the optical medium is initially inserted in the optical drive with the optical drive reading the separate sets of information while the read head is at a single location.