Consumable product and device for identifying the same
First Claim
1. A device for identifying consumable products comprising a main unit including an electronic circuit, and a consumable product detachably connected to the main unit, wherein the consumable product includes a property-varying analog element whose analog value of electric property continuously varies when connected to the main unit and applied with electricity, and the main unit includes an electricity-applying portion for applying the electricity to the property-varying analog element of the consumable product, and a detecting portion for detecting the varying electric property of the property-varying analog element, which is applied with the electricity by the electricity-applying portion, wherein in the state that the consumable product is connected, the detecting portion of the main unit detects the time-varying electric property of the property-varying analog element of the consumable product, and identifies whether the consumable product is an authorized product or a substandard product based on the detected electric property.
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0 Petitions
Accused Products
Abstract
A device for identifying consumable products comprises a main unit including an electronic circuit, and a consumable product detachably connected to the main unit. The consumable product includes a property-varying analog element whose analog value of electric property continuously varies when connected to the main unit and applied with a current. The main unit includes a current-applying portion for applying the current to the property-varying analog element of the consumable product, and a detecting portion for detecting the varying electric property of the property-varying analog element, which is applied with the current by the current-applying portion. With this device, the in the state that the consumable product is connected to the main unit, the detecting portion of the main unit detects the time-varying electric property of the property-varying analog element of the consumable product, and identifies whether the consumable product is an authorized product or a substandard product based on the detected electric property.
12 Citations
21 Claims
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1. A device for identifying consumable products comprising a main unit including an electronic circuit, and a consumable product detachably connected to the main unit, wherein
the consumable product includes a property-varying analog element whose analog value of electric property continuously varies when connected to the main unit and applied with electricity, and the main unit includes an electricity-applying portion for applying the electricity to the property-varying analog element of the consumable product, and a detecting portion for detecting the varying electric property of the property-varying analog element, which is applied with the electricity by the electricity-applying portion, wherein in the state that the consumable product is connected, the detecting portion of the main unit detects the time-varying electric property of the property-varying analog element of the consumable product, and identifies whether the consumable product is an authorized product or a substandard product based on the detected electric property.
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21. A consumable product detachably connected to a main unit including an electronic circuit comprising a property-varying analog element whose analog value of electric property continuously varies when connected to the main unit and applied with electricity, wherein
in the state that the consumable product is connected to the main unit, the time-varying electric property of the property-varying analog element of the consumable product is detected by the main unit, and the consumable product is identified whether an authorized product or a substandard product based on the detected electric property.
Specification