Electronic circuit for contactless tag, and contactless tag
First Claim
Patent Images
1. An electronic circuit for a contactless tag, comprising:
- a transceiving device having an antenna coil; and
means for switching between a state where the antenna coil forms a resonance circuit of the transceiving device and a state where the antenna coil forms a booster circuit.
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Accused Products
Abstract
An electronic circuit for a contactless tag includes a transceiving device having an antenna coil and a circuit changeover switch that switching between a state where the antenna coil forms a resonance circuit of the transceiving device and a state where the antenna coil forms a booster circuit.
28 Citations
20 Claims
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1. An electronic circuit for a contactless tag, comprising:
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a transceiving device having an antenna coil; and
means for switching between a state where the antenna coil forms a resonance circuit of the transceiving device and a state where the antenna coil forms a booster circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electronic circuit for a contactless tag, comprising:
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a transceiving device having an antenna coil; and
a circuit changeover switch that switching between a state where the antenna coil forms a resonance circuit of the transceiving device and a state where the antenna coil forms a booster circuit. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for manufacturing an electronic circuit system for a contactless tag, comprising:
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bringing a transceiving device into close proximity to a reader/writer for data communication;
providing an antenna coil that resonates according to power supplied from the reader/writer when brought into close proximity with the reader/writer; and
switching between a state where the antenna coil forms a resonance circuit of the transceiving device and a state where the antenna coil forms a booster circuit.
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Specification