Sensor device having non-contact charge function and containers having the same
First Claim
1. A sensor device comprising:
- a first antenna formed over a first base for receiving electromagnetic waves transmitted from an external device;
a second antenna formed over the first base and electrically connected to the first antenna;
a third antenna formed over a second base and electromagnetically coupled to the second antenna;
a power storage portion for storing electric power obtained by rectification of electromagnetic waves received by the third antenna; and
a sensor portion formed over the second base and configured to operate with the electric power supplied from the power storage portion,wherein the first base and the second base are separated from each other.
1 Assignment
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Accused Products
Abstract
A first base having a first antenna receiving electromagnetic waves and a second base having a sensor portion are separated. An antenna is provided over each of the first base and the second base such that the antennas are electromagnetically coupled. The first antenna constantly receives electromagnetic waves to generate electromotive force and charges a power storage portion. Since the electric power of the power storage portion is also used for driving of a sensor portion, the sensor portion operates even without communication with the external device. Provision of the first antenna receiving electromagnetic waves and the sensor portion on different bases permits miniaturization of a base having the sensor portion. Further, provision of the power storage portion storing electric power converted from electromagnetic waves received by the antenna enables operating the sensor actively.
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Citations
24 Claims
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1. A sensor device comprising:
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a first antenna formed over a first base for receiving electromagnetic waves transmitted from an external device; a second antenna formed over the first base and electrically connected to the first antenna; a third antenna formed over a second base and electromagnetically coupled to the second antenna; a power storage portion for storing electric power obtained by rectification of electromagnetic waves received by the third antenna; and a sensor portion formed over the second base and configured to operate with the electric power supplied from the power storage portion, wherein the first base and the second base are separated from each other. - View Dependent Claims (3, 9, 13, 17)
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2. A sensor device comprising:
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a first antenna over a first base for receiving electromagnetic waves transmitted from an external device; a power storage portion over the first base for storing electric power obtained by rectification of electromagnetic waves received by the first antenna; a second antenna over the first base for transmitting electric power modified after being supplied from the power storage portion; a third antenna over a second base electromagnetically coupled to the second antenna; and a sensor portion over the second base which operates with electric power obtained by rectification of electromagnetic waves received by the third antenna. - View Dependent Claims (4, 10, 14, 18)
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5. A sensor device comprising:
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a first base provided with an antenna portion for receiving electromagnetic waves transmitted from an external device, a power storage portion for storing electric power obtained by conversion of electromagnetic waves received by the antenna portion, and a first coil antenna; and a second base provided with a sensor portion capable of measuring a physical quantity of an object and a second coil antenna, wherein communication and supply/reception of electric power between the first base and the second base are performed by the first coil antenna and the second coil antenna, which are electromagnetically coupled. - View Dependent Claims (7, 11, 15, 19)
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6. A sensor device comprising:
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a first base provided with an antenna portion for receiving electromagnetic waves transmitted from an external device and a first coil antenna; and a second base including a sensor portion capable of measuring a physical quantity of an object, a power storage portion for storing electric power obtained by conversion of electromagnetic waves received by the antenna portion, and a second coil antenna, and wherein communication and supply/reception of electric power between the first base and the second base are performed by the first coil antenna and the second coil antenna, which are electromagnetically coupled, and wherein the first base and the second base are separated from each other. - View Dependent Claims (8, 12, 16, 20)
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21. A container comprising:
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an antenna on an exterior portion of a main body for receiving electromagnetic waves; a power storage portion on an inner side of the main body for storing electric power obtained by rectification of induced electromotive force generated when the antenna absorbs electromagnetic waves; a central processing unit on the inner side of the main body, which operates with electric power supplied from the power storage portion; and a sensor portion on the inner side of the main body for inputting signals into the central processing unit.
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22. A container comprising:
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an antenna on an exterior portion of a main body for receiving electromagnetic waves; a power storage portion on the exterior portion of the main body for storing electric power obtained by rectification of induced electromotive force generated when the antenna absorbs electromagnetic waves; a central processing unit on the exterior portion of the main body, which operates with electric power supplied from the power storage portion; and a sensor portion on an inner side of the main body, which operates with electric power supplied from the power storage portion.
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23. A container comprising:
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a first base on an exterior of a main body, provided with a first antenna for receiving electromagnetic waves, and a second antenna electrically connected to the first antenna; and a second base on an inner side of the main body, provided with a third antenna electromagnetically coupled to the second antenna, a power storage portion for storing electric power obtained by rectification of induced electromotive force generated by the third antenna, a central processing unit, which operates with electric power supplied from the power storage portion, and a sensor portion for inputting signals into the central processing unit.
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24. A container comprising:
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a first base on an exterior of a main body, provided with a first antenna for receiving electromagnetic waves, a second antenna electrically connected to the first antenna, a power storage portion for storing electric power obtained by rectification of induced electromotive force generated when the first antenna absorbs electromagnetic waves, and a central processing unit, which operates with electric power supplied from the power storage portion; and a second base on an inner side of the main body, provided with a third antenna electromagnetically coupled to the second antenna, a sensor portion which operates with electric power supplied from the power storage portion.
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Specification