Radio field intensity measurement device, and radio field intensity detector and game console using the same
First Claim
1. A device comprising:
- a circuit comprising a transistor attached to a sheet material;
an antenna electrically connected to the transistor;
a thin film secondary battery electrically connected to the antenna through an anisotropic conductive film or an anisotropic conductive paste;
a display element electrically connected to the circuit,wherein the antenna is configured to convert a received radiowave to an induction signal;
wherein the thin film secondary battery is charged by a direct signal generated from the induction signal.
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Abstract
The present invention provides a radio field intensity measurement device having a display portion with improved visibility, in the case of measuring a weak radiowave from a long distance. In the radio field intensity measurement device, a battery is provided as a power source for power supply and the battery is charged by a received radiowave. When a potential of a signal obtained from the received radiowave is higher than an output potential of the battery, the power is stored in the battery. On the other hand, when the potential of the signal obtained from the received radiowave is lower than the output potential of the battery, power produced by the battery is used as power to drive the radio field intensity measurement device. As an element to display the radio field intensity, a thermochromic element or an electrochromic element is used.
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Citations
15 Claims
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1. A device comprising:
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a circuit comprising a transistor attached to a sheet material; an antenna electrically connected to the transistor; a thin film secondary battery electrically connected to the antenna through an anisotropic conductive film or an anisotropic conductive paste; a display element electrically connected to the circuit, wherein the antenna is configured to convert a received radiowave to an induction signal; wherein the thin film secondary battery is charged by a direct signal generated from the induction signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device comprising:
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a circuit comprising a transistor attached to a sheet material; an antenna electrically connected to the transistor; a thin film secondary battery electrically connected to the antenna through an anisotropic conductive film or an anisotropic conductive paste; a display element electrically connected to the circuit, wherein the antenna is configured to convert a received radiowave to an induction signal, wherein the thin film secondary battery is charged by a direct signal generated from the induction signal, wherein a color of the display element is changed in accordance with a magnitude of the direct signal. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification