Electric power charge and discharge system
First Claim
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1. A device comprising:
- a battery;
a charge switching circuit;
an antenna electrically connectable to the battery through the charge switching circuit; and
a connector electrically connectable to the battery through the charge switching circuit,wherein the charge switching circuit is configured to select an electrical connection of the battery to either one of the antenna or the connector;
wherein the battery is configured to be charged by first electric power from an external power supply source through the connector in a first state and by second electric power from the antenna in a second state, andwherein the second electric power from the antenna is generated by receiving an external electromagnetic wave in an external space.
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Abstract
An electric power charge and discharge system for an electronic device having a battery, by which the electronic device can be used for a long period of time. In a wireless communication device including a wireless driving portion including a first battery and a wireless charging portion including a second battery, the first battery is charged by electric power from a fixed power supply and the second battery is charged by using electromagnetic waves existing in an external space. Further, the first battery and the second battery are discharged alternately, and during a period in which the first battery is discharged, the second battery is charged.
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Citations
38 Claims
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1. A device comprising:
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a battery; a charge switching circuit; an antenna electrically connectable to the battery through the charge switching circuit; and a connector electrically connectable to the battery through the charge switching circuit, wherein the charge switching circuit is configured to select an electrical connection of the battery to either one of the antenna or the connector; wherein the battery is configured to be charged by first electric power from an external power supply source through the connector in a first state and by second electric power from the antenna in a second state, and wherein the second electric power from the antenna is generated by receiving an external electromagnetic wave in an external space.
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2. A device comprising:
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a battery; a charge switching circuit; an antenna electrically connectable to the battery through the charge switching circuit; and a connector electrically connectable to the battery through the charge switching circuit, wherein the battery is configured to be charged by first electric power from an external power supply source through the connector when the first electric power from the external power supply source is supplied to the connector and by second electric power from the antenna when the first electric power from the external power supply source is not supplied to the connector, and wherein the second electric power from the antenna is generated by receiving an external electromagnetic wave in an external space. - View Dependent Claims (3, 4, 5)
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6. A wireless communication device comprising:
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an internal circuit; a first battery; an antenna electrically connectable to the first battery and to the internal circuit; and a connector electrically connectable to the first battery and to the internal circuit, wherein the first battery is configured to be charged by first electric power from an external power supply source through the connector when the first electric power from the external power supply source is supplied to the connector and by second electric power from the antenna when the first electric power from the external power supply source is not supplied to the connector, wherein the internal circuit is configured to be operated by the first electric power from the external power supply source when the first electric power from the external power supply source is supplied to the connector and by third electric power from the first battery when the first electric power from the external power supply source is not supplied to the connector, and wherein the second electric power from the antenna is generated by receiving an external electromagnetic wave in an external space. - View Dependent Claims (7, 8, 9, 10)
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11. A wireless communication device comprising:
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an internal circuit; a first battery; a charge switching circuit; a power supply switching circuit; an antenna electrically connectable to the first battery through the charge switching circuit and to the internal circuit through the power supply switching circuit; and a connector electrically connectable to the first battery through the charge switching circuit and to the internal circuit through the power supply switching circuit, wherein the charge switching circuit is configured to be operated so that the first battery is charged by first electric power from an external power supply source through the connector when the first electric power from the external power supply source is supplied to the connector and by second electric power from the antenna when the first electric power from the external power supply source is not supplied to the connector, wherein the power supply switching circuit is configured to be operated so that the internal circuit is operated by the first electric power from the external power supply source when the first electric power from the external power supply source is supplied to the connector and by third electric power from the first battery when the first electric power from the external power supply source is not supplied to the connector, and wherein the second electric power from the antenna is generated by receiving an external electromagnetic wave in an external space. - View Dependent Claims (12, 13, 14, 15)
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16. A wireless communication device comprising:
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an internal circuit; a first battery; a first antenna electrically connectable to the internal circuit; a second antenna electrically connectable to the first battery and to the internal circuit; and a connector electrically connectable to the first battery and to the internal circuit, wherein the first battery is configured to be charged by first electric power from an external power supply source through the connector when the first electric power from the external power supply source is supplied to the connector and by second electric power from the second antenna when the first electric power from the external power supply source is not supplied to the connector, wherein the internal circuit is configured to be operated by the first electric power from the external power supply source when the first electric power from the external power supply source is supplied to the connector and by third electric power from the first battery when the first electric power from the external power supply source is not supplied to the connector, wherein the second electric power from the second antenna is generated by receiving an external electromagnetic wave in an external space, and wherein the first antenna is configured to receive a wireless communication signal for operating the internal circuit. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A wireless communication device comprising:
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an internal circuit; a wireless charging portion; an antenna included in the wireless charging portion and electrically connectable to the internal circuit; and a connector electrically connectable to the wireless charging portion and to the internal circuit, wherein the wireless charging portion is configured to charge a battery by first electric power from an external power supply source through the connector when the first electric power from the external power supply source is supplied to the connector and by second electric power from the antenna when the first electric power from the external power supply source is not supplied to the connector, wherein the internal circuit is configured to be operated by the first electric power from the external power supply source when the first electric power from the external power supply source is supplied to the connector and by third electric power from the battery when the first electric power from the external power supply source is not supplied to the connector, and wherein the second electric power from the antenna is generated by receiving an external electromagnetic wave in an external space. - View Dependent Claims (24, 25, 26)
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27. A driving method for a device, wherein the device comprising a battery, an antenna electrically connectable to the battery, and a connector electrically connectable to the battery, the driving method comprising the steps of:
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charging the battery by first electric power from an external power supply source through the connector when the first electric power from the external power supply source is supplied to the connector; charging the battery by second electric power from the antenna when the first electric power from the external power supply source is not supplied to the connector. - View Dependent Claims (28, 29)
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30. A driving method for a wireless communication device, wherein the wireless communication device comprising an internal circuit, a battery, an antenna electrically connectable to the battery and the internal circuit, and a connector electrically connectable to the battery and the internal circuit, the driving method comprising the steps of:
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when first electric power from an external power supply source is supplied to the connector; operating the internal circuit by the first electric power from the external power supply source through the connector; and charging the battery by the first electric power from the external power supply source through the connector; when the first electric power from the external power supply source is not supplied to the connector; charging the battery by second electric power from the antenna; and operating the internal circuit by third electric power from the battery. - View Dependent Claims (31, 32)
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33. A driving method for a wireless communication device, wherein the wireless communication device comprising an internal circuit, a battery, a charge switching circuit, a power supply switching circuit, an antenna electrically connectable to the battery and the internal circuit, and a connector electrically connectable to the battery and the internal circuit, the driving method comprising the steps of:
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when first electric power from an external power supply source is supplied to the connector; operating the internal circuit by the first electric power from the external power supply source through the connector; and charging the battery by the first electric power from the external power supply source through the connector; when the first electric power from the external power supply source is not supplied to the connector; operating the charge switching circuit so that the battery is charged by second electric power from the antenna; charging the battery by the second electric power from the antenna; operating the power supply switching circuit so that the internal circuit is operated by third electric power from the battery; and operating the internal circuit by the third electric power from the battery. - View Dependent Claims (34, 35)
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36. A driving method for a wireless communication device, wherein the wireless communication device comprising an internal circuit, a battery, a first antenna electrically connectable to the internal circuit, a second antenna electrically connectable to the battery and to the internal circuit and a connector electrically connectable to the battery and the internal circuit, the driving method comprising the steps of:
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when first electric power from an external power supply source is supplied to the connector; operating the internal circuit by the first electric power from the external power supply source through the connector and in accordance with a wireless communication signal received by the first antenna; and charging the battery by the first electric power from the external power supply source through the connector; when the first electric power from the external power supply source is not supplied to the connector; charging the battery by second electric power from the second antenna; and operating the internal circuit by third electric power from the battery and in accordance with the wireless communication signal received by the first antenna. - View Dependent Claims (37, 38)
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Specification