Identification system
First Claim
1. An identification system wherein validity between a first unit and a second unit is identified when the first unit is electrically communicated with the second unit,said first unit including:
- means for generating identification code information;
means for calculating, based upon the identification code information, an estimation time required for processing the identification code information in the second unit;
means for measuring an actual time required for completely processing the identification code information in the second unit, andmeans for identifying validity between said first and second units by comparing the actual processing time to the estimation processing time; and
said second unit including;
means for processing the identification code information sent from said first unit.
1 Assignment
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Accused Products
Abstract
An identification system wherein validity between a first unit and a second unit is identified when the first unit is electrically communicated with the second unit. The first unit includes a generator for generating identification code information, a calculator for calculating, based upon the identification code information, an estimation time required for processing the identification code information in the second unit, a time counter for measuring an actual time required for completely processing the identification code information in the second unit, and an unit for identifying validity between said first and second units by comparing the actual processing time to the estimation processing time. The second unit includes at least a processor for processing the identification code information sent from the first unit.
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Citations
14 Claims
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1. An identification system wherein validity between a first unit and a second unit is identified when the first unit is electrically communicated with the second unit,
said first unit including: -
means for generating identification code information; means for calculating, based upon the identification code information, an estimation time required for processing the identification code information in the second unit; means for measuring an actual time required for completely processing the identification code information in the second unit, and means for identifying validity between said first and second units by comparing the actual processing time to the estimation processing time; and said second unit including; means for processing the identification code information sent from said first unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification