Rotation Invariant Optical Identification Tags

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Solution Overview

Problem

Existing identification systems lack the ability to securely and accurately read and authenticate optically encoded tags from varying distances and orientations, making them susceptible to counterfeiting and data capture.

Innovation Solution

The development of rotation and scale invariant optical identification tags using double phase encryption and encoding techniques, where data is encrypted into a two-dimensional white noise matrix and converted to a one-dimensional array, stored in radial vectors or sectors of a circle, allowing for secure and robust decoding and authentication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If optical identification tags are used for remote identification, then identification capability is improved, but susceptibility to counterfeiting and data capture increases

Engineering Contradiction:
Improveidentification accuracyVSAvoidsecurity against counterfeiting
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent combines multiple security mechanisms into a composite identification system: optical encoding with encryption, distortion invariant coding, and authentication protocols. This composite approach creates a security layer that is significantly harder to counterfeit than simple optical tags while maintaining remote identification capability

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent transforms the identification code into distortion-invariant form by encoding it in a way that remains recognizable under rotation, scaling, and other geometric transformations. This parameter transformation allows the system to maintain identification accuracy while the encrypted nature of the transformed code prevents unauthorized copying and counterfeiting

Inventive Principle:
Principle #35Parameter changes

2Reliability

If encryption is applied to the identification code, then security is improved, but decoding complexity increases

Engineering Contradiction:
ImprovesecurityVSAvoiddecoding complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies encryption and distortion invariant encoding to the identification code before it is printed on the tag. This preliminary processing ensures that the code is secure and robust against distortions before deployment, eliminating the need for complex real-time processing during authentication while maintaining high security standards

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If the identification tag must be readable from varying distances and orientations, then adaptability is improved, but measurement precision deteriorates

Engineering Contradiction:
Improvereading distance and orientation rangeVSAvoidcode reading accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent encodes the identification data in a circular or radially symmetric pattern that maintains its structural integrity under rotation and scaling. This geometric encoding allows the tag to be read from various distances and orientations while the distortion-invariant properties ensure that the code remains accurately decodable despite geometric transformations

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The identification code is designed to serve multiple functions simultaneously: it provides unique identification, maintains readability under geometric transformations, and incorporates encryption for security. This multi-functional design allows the same code structure to handle varying reading conditions without sacrificing precision or adding separate systems

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS8155312B2Optical data storage device and method
Publication Date: 2012.04.10 UNIV OF CONNECTICUT
  • US8155312B2 patent drawing
  • US8155312B2 patent drawing
  • US8155312B2 patent drawing

AI summary

A device disclosed herein relates to a rotation invariant data storage device comprising, a data storage device with an optically sensible image, encoded data stored within the sensible image, and a plurality of radial vectors stores the encoded data. The encoded data comprises an image that has been encrypted to a two-dimensional (2-D) white noise matrix and converted to a one-dimensional (1-D) array.