Barcode Evaluation Device for Display Readability Verification
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Solution Overview
Problem
Current technologies do not provide a means to quantitatively verify whether a barcode displayed on a terminal screen is readable with a barcode scanner, leading to costly and time-consuming actual tests across various terminal and scanner models, especially due to diverse screen specifications and short product cycles.
Innovation Solution
A barcode evaluation device and system that assesses the suitability of a barcode for display and readability based on its specifications and those of the image display and reading devices without actual display or reading, allowing for the generation of barcode images optimized for specific devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If actual display and reading tests are conducted across various terminal and scanner models, then verification accuracy is improved, but verification cost and time increase significantly
Solution Approach 1:
The patent performs preliminary evaluation of barcode displayability and readability by comparing barcode specifications (module width, dot count) against terminal screen specifications (pixel density, display size) and scanner specifications (reading width, minimum resolution) before actual display and reading. This preliminary specification matching avoids the need for extensive actual testing across multiple device models, significantly reducing verification time while maintaining accuracy.
Solution Approach 2:
The patent creates a virtual model of the evaluation process by using specification data to simulate and evaluate barcode compatibility without physically displaying and reading the barcode on actual devices. This copying approach replaces expensive and time-consuming physical tests with computational evaluation based on specification comparisons.
2Measurement precision
If barcode specifications are optimized for one terminal model, then reading accuracy with that model is improved, but compatibility with other models deteriorates
Solution Approach 1:
The patent creates a universal evaluation method that assesses barcode compatibility across multiple terminal and scanner models simultaneously by comparing specifications against predefined ranges. The system determines whether a barcode meets the requirements of various device types without needing to optimize separately for each model, achieving both accuracy and broad compatibility.
Solution Approach 2:
The patent uses parameter ranges and thresholds to evaluate barcode specifications. By defining acceptable ranges for module width, dot count, and other parameters based on scanner minimum resolution and reading width specifications, the system determines compatibility without requiring exact optimization for each device model. This parameter-based approach enables adaptability across diverse models.
Data Source
AI summary
A barcode evaluation device is configured to conduct an evaluation, which involves determining whether or not a barcode image is displayable on an image display device and determining whether or not the barcode image is readable with a barcode reading device. The evaluation is conducted based on specifics of the barcode image, specifications of the image display device, and specifications of the barcode reading device without actually displaying and reading the barcode image.