Authenticity Detection Using Segmented Current Measurement
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Solution Overview
Problem
Existing systems face challenges in accurately determining the authenticity of appurtenance devices with similar patterns of current consumption rates, leading to potential erroneous identification of unauthorized products as authorized ones.
Innovation Solution
An information processing device with circuitry to measure current consumption, identify pause and operation periods, and calculate average values for comparison with expected values to determine authenticity, using multiple target periods to reduce variability and enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current consumption rate patterns are used to determine authenticity, then unauthorized products can be identified, but erroneous identification occurs when products have similar consumption patterns
Solution Approach 1:
The operational period is divided into multiple distinct time periods (first time period with first processing block operating, second time period with second processing block operating, etc.). By segmenting the measurement into these distinct periods, the system captures unique current consumption characteristics for each processing block's operation, enabling more precise authenticity determination and reducing erroneous identification of unauthorized products with similar overall consumption patterns.
2Measurement precision
If multiple time periods are measured for authenticity determination, then accuracy improves, but measurement time and complexity increase
Solution Approach 1:
The system pre-defines multiple time periods and their corresponding expected current consumption values before performing authenticity determination. By having the measurement framework prepared in advance with specific time periods and expected values established, the system can efficiently conduct multi-period measurements without requiring complex real-time analysis, thus improving accuracy while minimizing additional measurement time.
Data Source
AI summary
A circuitry is configured to calculate a measured average value based on measured current values obtained in a target period for determination, and determine whether a memory device is an authorized or an unauthorized product, based on a comparison result between a measured average value and a reference average value.