Semiconductor device
First Claim
Patent Images
1. A semiconductor device comprising:
- a booster antenna;
a signal processing circuit;
a battery;
a first antenna circuit to receive a first signal through the booster antenna and transmit a second signal for transmitting data stored in the signal processing circuit through the booster antenna; and
a second antenna circuit to receive a third signal for charging the battery, wherein the second antenna circuit is operationally connected to the battery through the signal processing circuit.
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Abstract
The present invention provides a battery as a power supply for supplying power in the RFID, and another antenna for charging the battery, in addition to an antenna which transmits and receives individual information to and from outside as a means for supplying power to the battery.
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Citations
13 Claims
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1. A semiconductor device comprising:
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a booster antenna;
a signal processing circuit;
a battery;
a first antenna circuit to receive a first signal through the booster antenna and transmit a second signal for transmitting data stored in the signal processing circuit through the booster antenna; and
a second antenna circuit to receive a third signal for charging the battery, wherein the second antenna circuit is operationally connected to the battery through the signal processing circuit. - View Dependent Claims (7, 8, 9, 12, 13)
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2. A semiconductor device comprising:
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a booster antenna;
a signal processing circuit;
a battery;
a first antenna circuit to receive a first signal and transmit a second signal for transmitting data stored in the signal processing circuit; and
a second antenna circuit to receive a third signal for charging the battery through the booster antenna, wherein the second antenna circuit is operationally connected to the battery through the signal processing circuit.
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3. A semiconductor device comprising:
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a booster antenna;
a signal processing circuit;
a battery;
a first antenna circuit to receive a first signal through the booster antenna and transmit a second signal for transmitting data stored in the signal processing circuit through the booster antenna; and
a second antenna circuit to receive a third signal for charging the battery from a charger including an antenna circuit through the booster antenna, wherein the second antenna circuit is operationally connected to the battery through the signal processing circuit.
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4. A semiconductor device comprising:
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a booster antenna;
a signal processing circuit;
a battery;
a first antenna circuit to receive a first signal and transmit a second signal for transmitting data stored in the signal processing circuit between a reader/writer and the first antenna through the booster antenna; and
a second first antenna circuit to receive a third signal for charging the battery, wherein the second antenna circuit is operationally connected to the battery through the signal processing circuit.
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5. A semiconductor device comprising:
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a booster antenna;
a signal processing circuit;
a battery;
a first antenna circuit to receive a first signal and transmit a second signal for transmitting data stored in the signal processing circuit between a reader/writer and the first antenna; and
a second antenna circuit to receive a third signal for charging the battery from a charger including an antenna circuit through the booster antenna, wherein the second antenna circuit is operationally connected to the battery through the signal processing circuit.
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6. A semiconductor device comprising:
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a booster antenna;
a signal processing circuit;
a battery;
a first antenna circuit to receive a first signal and transmit a second signal for transmitting data stored in the signal processing circuit between a reader/writer and the first antenna through the booster antenna; and
a second antenna circuit to receive a third signal for charging the battery from a charger including an antenna circuit through the booster antenna, wherein the second antenna circuit is operationally connected to the battery through the signal processing circuit.
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10. A semiconductor device comprising:
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a first antenna circuit;
a second antenna circuit;
a signal processing circuit;
a battery;
a first antenna circuit to receives a first signal and transmit a second signal for transmitting data stored in the signal processing circuit; and
a second antenna circuit to receive a third signal for charging the battery, wherein the second antenna circuit is operationally connected to the battery through the signal processing circuit; and
wherein a relation of 0.5 m<
M<
1.5 m is satisfied, where a frequency of a signal which is received by the first antenna circuit is set M (M is a positive number) and a frequency of a signal which is received by the second antenna circuit is set m (m is a positive number).
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11. A semiconductor device comprising:
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a first antenna circuit;
a second antenna circuit;
a signal processing circuit;
a battery;
a first antenna circuit to receive a first signal and receive a second signal for transmitting data stored in the signal processing circuit between a reader/writer and the first antenna circuit; and
a second antenna circuit to receive a third signal for charging the battery from a charger including an antenna circuit, wherein the second antenna circuit is operationally connected to the battery through the signal processing circuit; and
wherein a relation of 0.5 m<
M<
1.5 m is satisfied, where a frequency of a signal which is received by the first antenna circuit is set M (M is a positive number) and a frequency of a signal which is received by the second antenna circuit is set m (m is a positive number).
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Specification