Sheet Recognition Unit Detecting Optical and Magnetic Security Features
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Solution Overview
Problem
Existing sheet recognition technologies cannot effectively detect security elements that combine both optical variable and magnetic features, as they either fail to detect the optical variable feature or the magnetic feature.
Innovation Solution
A sheet recognition unit equipped with both optical and magnetic sensors, along with a determination unit that compares optical and magnetic information to identify the presence of optical variable and magnetic features in the same region, ensuring accurate authentication of sheets with integrated security elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only a magnetic sensor is used to detect security elements, then magnetic features can be detected, but optical variable features cannot be detected
Solution Approach 1:
The patent combines a magnetic sensor and an optical sensor into a single sheet feature detector device. The magnetic sensor detects magnetic features while the optical sensor detects optical variable features, and both detection results are integrated to comprehensively identify security elements on sheets.
Solution Approach 2:
The sheet feature detector is designed with multi-functional capability to detect both magnetic features and optical variable features using separate specialized sensors. This universal detection system can identify various types of security elements with different properties through a single integrated device.
2Measurement precision
If only an optical sensor is used to detect security elements, then optical variable features can be detected, but magnetic features cannot be detected
Solution Approach 1:
The patent combines a magnetic sensor and an optical sensor into a single sheet feature detector device. The magnetic sensor detects magnetic features while the optical sensor detects optical variable features, and both detection results are integrated to comprehensively identify security elements on sheets.
Solution Approach 2:
The sheet feature detector is designed with multi-functional capability to detect both magnetic features and optical variable features using separate specialized sensors. This universal detection system can identify various types of security elements with different properties through a single integrated device.
3Adaptability or versatility
If separate sensors for optical and magnetic features are used, then both features can be detected, but the complexity of the device increases
Solution Approach 1:
The patent combines a magnetic sensor and an optical sensor into a single sheet feature detector device. The magnetic sensor detects magnetic features while the optical sensor detects optical variable features, and both detection results are integrated to comprehensively identify security elements on sheets.
4Measurement precision
If multiple sensors are integrated to detect both optical and magnetic features, then detection accuracy improves, but the device becomes more complex
Solution Approach 1:
The patent combines a magnetic sensor and an optical sensor into a single sheet feature detector device. The magnetic sensor detects magnetic features while the optical sensor detects optical variable features, and both detection results are integrated to comprehensively identify security elements on sheets.
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
Enables the reliable detection and authentication of sheets containing both optical variable and magnetic features, distinguishing genuine from counterfeit sheets by confirming the co-presence of these features in the same region.
Implementation Method 1
the optical sensor is configured to detect optical information of a sheet
Implementation Method 2
the magnetic sensor is configured to detect magnetic information of a sheet
Data Source
Figure 1~2B
Figure 3A~3B
Figure 4A~4B
AI summary
Provided are a sheet recognition unit, a sheet handling device, and a sheet recognition method which can detect a security element having both an optical variable feature and a magnetic feature. The sheet recognition unit is for recognizing a sheet with a security element having an optical variable feature and a magnetic feature. The sheet recognition unit includes: an optical sensor configured to detect optical information of a sheet; a magnetic sensor configured to detect magnetic information of a sheet; and a determination unit configured to determine whether or not an optical variable feature and a magnetic feature are present in the same region of a sheet based on optical information of the sheet detected by the optical sensor and magnetic information of the sheet detected by the magnetic sensor.