Invention Grant
US07696883B2 Resonance tag, method of reversibly changing resonance characteristics of resonance circuit, and capacitive element
失效
共振标签，可逆地改变谐振电路的谐振特性的方法以及电容元件
- Patent Title: Resonance tag, method of reversibly changing resonance characteristics of resonance circuit, and capacitive element
- Patent Title (中): 共振标签，可逆地改变谐振电路的谐振特性的方法以及电容元件
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Application No.: US11665483Application Date: 2006-01-16
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Publication No.: US07696883B2Publication Date: 2010-04-13
- Inventor: Takayuki Sumida , Tadahiko Hirai
- Applicant: Takayuki Sumida , Tadahiko Hirai
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2005-009071 20050117
- International Application: PCT/JP2006/300906 WO 20060116
- International Announcement: WO2006/075800 WO 20060720
- Main IPC: G08B13/14
- IPC: G08B13/14
Abstract:
In a resonance tag provided with a resonance circuit composed of a capacitive element and an inductive element, the capacitive element is characterized by having a condition under which the capacitance of the capacitive element is reversibly changed by a voltage applied to the resonance circuit and anther condition under which the capacitance of the capacitive element is irreversibly changed by another voltage applied to the resonance circuit.
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