Semiconductor device
First Claim
1. A semiconductor device comprising:
- a signal processing circuit;
a first antenna circuit operationally connected to the signal processing circuit;
a second antenna circuit operationally connected to the signal processing circuit; and
a battery operationally connected to the signal processing circuit,wherein the first antenna circuit receives a first signal, and transmits a second signal for transmitting data stored in the signal processing circuit;
the second antenna circuit receives a third signal for charging the battery; and
the first signal and the third signal have different wavelengths from each other.
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Accused Products
Abstract
An object is to provide a semiconductor device including an RFID which can transmit/receive individual information without a change of a battery accompanied by deterioration over time of the battery as a drive power source, and to which driving power can be supplied to keep a favorable transmission/reception state of the individual information even when an external electromagnetic wave is not sufficient. The semiconductor device includes a signal processing circuit, a first antenna circuit and a second antenna circuit operationally connected to the signal processing circuit, and a battery operationally connected to the signal processing circuit, in which the first antenna circuit transmits/receives a signal for transmitting data stored in the signal processing circuit; the second antenna circuit receives a signal for charging the battery; and a signal received by the first antenna circuit and a signal received by the second antenna circuit have different wavelengths.
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Citations
49 Claims
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1. A semiconductor device comprising:
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a signal processing circuit; a first antenna circuit operationally connected to the signal processing circuit; a second antenna circuit operationally connected to the signal processing circuit; and a battery operationally connected to the signal processing circuit, wherein the first antenna circuit receives a first signal, and transmits a second signal for transmitting data stored in the signal processing circuit; the second antenna circuit receives a third signal for charging the battery; and the first signal and the third signal have different wavelengths from each other. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A semiconductor device comprising:
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a signal processing circuit; a first antenna circuit operationally connected to the signal processing circuit; a second antenna circuit operationally connected to the signal processing circuit; and a battery operationally connected to the signal processing circuit, wherein the first antenna circuit receives a first signal from a reader/writer, and transmit a second signal to the reader/writer for transmitting data stored in the signal processing circuit; the second antenna circuit receives an external radio signal for charging the battery from; and the first signal and the external radio signal have different wavelengths from each other. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A semiconductor device comprising:
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a signal processing circuit; a first antenna circuit operationally connected to the signal processing circuit; a second antenna circuit operationally connected to the signal processing circuit; a battery operationally connected to the signal processing circuit; and a booster antenna, wherein the first antenna circuit receives a first signal from a reader/writer through the booster antenna, and transmits a second signal through the booster antenna for transmitting data stored in the signal processing circuit; the second antenna circuit receives a external radio signal for charging the battery from an external radio signal; and the first signal and the external radio signal have different wavelengths from each other. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A semiconductor device comprising:
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a signal processing circuit; a first antenna circuit which is operationally connected to the signal processing circuit; a plurality of second antenna circuits; a battery which is operationally connected to the signal processing circuit; and a booster antenna, wherein the first antenna circuit is a circuit that transmits/receives to/from a reader/writer a signal for transmitting data stored in the signal processing circuit; the second antenna circuit is a circuit that receives a signal for charging the battery from an external radio signal through the booster antenna; and a signal received by the first antenna circuit and a signal received by the second antenna circuit have different wavelengths. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A semiconductor device comprising:
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a first signal processing circuit; a second signal processing circuit; a first antenna circuit which is operationally connected to the first signal processing circuit; a second antenna circuit which is operationally connected to the second signal processing circuit; and a battery which is operationally connected to the first signal processing circuit and the second signal processing circuit, wherein the first antenna circuit is a circuit that transmits/receives a signal for transmitting data stored in the first signal processing circuit; the second antenna circuit is a circuit that receives a signal for charging the battery; and a signal received by the first antenna circuit and a signal received by the second antenna circuit have different wavelengths. - View Dependent Claims (26, 27, 28, 29, 30)
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31. A semiconductor device comprising:
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a first signal processing circuit; a second signal processing circuit; a first antenna circuit which is operationally connected to the first signal processing circuit; a second antenna circuit which is operationally connected to the second signal processing circuit; and a battery which is operationally connected to the first signal processing circuit and the second signal processing circuit, wherein the first antenna circuit is a circuit that transmits/receives to/from a reader/writer a signal for transmitting data stored in the first signal processing circuit; the second antenna circuit is a circuit that receives a signal for charging the battery from an external radio signal; and a signal received by the first antenna circuit and a signal received by the second antenna circuit have different wavelengths. - View Dependent Claims (32, 33, 34, 35, 36)
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37. A semiconductor device comprising:
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a first signal processing circuit; a second signal processing circuit; a first antenna circuit which is operationally connected to the first signal processing circuit; a second antenna circuit which is operationally connected to the second signal processing circuit; a battery which is operationally connected to the first signal processing circuit and the second signal processing circuit; and a booster antenna, wherein the first antenna circuit is a circuit that transmits/receives to/from a reader/writer through the booster antenna a signal for transmitting data stored in the first signal processing circuit; the second antenna circuit is a circuit that receives a signal for charging the battery from an external radio signal; and a signal received by the first antenna circuit and a signal received by the second antenna circuit have different wavelengths. - View Dependent Claims (38, 39, 40, 41, 42)
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43. A semiconductor device comprising:
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a first signal processing circuit; a second signal processing circuit; a first antenna circuit which is operationally connected to the first signal processing circuit; a plurality of second antenna circuits which are operationally connected to the second signal processing circuit; a battery which is operationally connected to the first signal processing circuit and the second signal processing circuit; and a booster antenna, wherein the first antenna circuit is a circuit that transmits/receives to/from a reader/writer a signal for transmitting data stored in the first signal processing circuit; the second antenna circuit is a circuit that receives a signal for charging the battery from an external radio signal through the booster antenna; and a signal received by the first antenna circuit and a signal received by the second antenna circuit have different wavelengths. - View Dependent Claims (44, 45, 46, 47, 48, 49)
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Specification