Wireless sensor device
First Claim
Patent Images
1. A sensor device comprising:
- a substrate comprising an antistatic film;
a circuit comprising a plurality of semiconductor elements over the substrate;
an antenna electrically connected to the circuit over the substrate;
a sensor provided over the substrate and electrically connected to the circuit; and
a flexible secondary battery over the substrate and electrically connected to the circuit and the antenna,wherein the sensor device is configured to be implanted in a living body.
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Abstract
A wireless sensor device capable of constant operation without replacement of batteries. The wireless sensor device is equipped with a rechargeable battery and the battery is recharged wirelessly. Radio waves received at an antenna circuit are converted into electrical energy and stored in the battery. A sensor circuit operates with the electrical energy stored in the battery, and acquires information. Then, a signal containing the information acquired is converted into radio waves at the antenna circuit, whereby the information can be read out wirelessly.
56 Citations
21 Claims
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1. A sensor device comprising:
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a substrate comprising an antistatic film; a circuit comprising a plurality of semiconductor elements over the substrate; an antenna electrically connected to the circuit over the substrate; a sensor provided over the substrate and electrically connected to the circuit; and a flexible secondary battery over the substrate and electrically connected to the circuit and the antenna, wherein the sensor device is configured to be implanted in a living body. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A sensor device comprising:
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a substrate comprising an antistatic film; a circuit comprising a plurality of semiconductor elements over the substrate; an antenna electrically connected to the circuit over the substrate; a sensor provided over the substrate and electrically connected to the circuit; and a flexible secondary battery over the substrate, wherein the antenna is configured to receive radio waves and to transmit information wirelessly, wherein the flexible secondary battery is configured to store electrical energy obtained from the radio waves received by the antenna, and wherein the sensor device is configured to be implanted in a living body. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A sensor device comprising:
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a substrate comprising an antistatic film; a circuit comprising a plurality of semiconductor elements over the substrate; a first antenna; a second antenna; a sensor provided over the substrate and electrically connected to the circuit; and a flexible secondary battery over the substrate, wherein the first antenna is configured to receive radio waves, wherein the second antenna is configured to receive a signal and to transmit information wirelessly, wherein the flexible secondary battery is configured to store electrical energy obtained from the radio waves received by the first antenna, and wherein the sensor device is configured to be implanted in a living body. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification