Onsite Signature Verification Using Embedded Reference Samples

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Solution Overview

Problem

Existing signature and handwriting verification technologies face challenges in real-time accuracy and efficiency, particularly in scenarios lacking access to historical authentic samples, making them vulnerable to fraudulent activities.

Innovation Solution

Encoding authentic signatures and handwriting samples directly onto writable documents, using neural networks to transform and embed them as machine-readable codes, enabling real-time comparison and verification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional signature verification methods are used without historical authentic samples, then the system can operate in real-time, but the accuracy and reliability of verification deteriorates

Engineering Contradiction:
Improvereal-time verification speedVSAvoidverification accuracy
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies preliminary action by pre-encoding authentic reference writing samples directly onto the document before the actual writing occurs. This allows the verification system to have immediate access to authentic samples for comparison, eliminating the need to rely on historical databases while maintaining high verification accuracy in real-time.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediary mechanism - a encoding device that embeds reference writing samples onto the document. This intermediary captures and stores authentic writing patterns directly on the document, serving as a local reference that enables accurate real-time verification without external databases.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If reference writing samples are embedded onto documents, then verification accuracy improves, but the device complexity increases

Engineering Contradiction:
Improveverification accuracyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing a multi-functional system where the encoding device can capture writing samples, encode them into compact representations, and embed them directly onto documents. This single device performs multiple functions that would otherwise require separate systems, reducing overall complexity while maintaining verification accuracy.

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

Solution Approach 2:

The patent applies parameter changes by transforming the reference writing samples from their original form into encoded representations with different parameters (compressed, encrypted, or formatted data). This transformation reduces the complexity of storing and processing reference samples while preserving the essential verification characteristics.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If writing samples are captured and stored for verification, then verification reliability improves, but the loss of time in processing increases

Engineering Contradiction:
Improveverification reliabilityVSAvoidprocessing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by capturing and encoding reference writing samples in advance, before they are needed for verification. The samples are pre-processed and stored in an optimized format, so that during actual verification, the system only needs to perform a quick comparison rather than extensive processing, significantly reducing processing time while maintaining reliability.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12387532B1Methods and systems for onsite signature verification
Publication Date: 2025.08.12 PARASCRIPT LLC
  • US12387532B1 patent drawing
  • US12387532B1 patent drawing
  • US12387532B1 patent drawing

AI summary

A method and system for writable document forgery detection that includes encrypting a reference writing sample, compressing the reference writing sample, embedding the reference writing sample onto the writable document, receiving the writable document, the writable document including a handwritten segment, encrypting the handwritten segment of the received writable document, comparing the encrypted reference writing sample to the encrypted handwritten segment, and assessing a likelihood of the encrypted reference writing sample and the encrypted handwritten segment being written by a same person based on the comparison.