Contactless cell apparatus
First Claim
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1. A cell apparatus which emits and receives AC power via magnetic field resonance coupling to an external device, comprising:
- a secondary cell;
a cell interface to interface with the secondary cell;
a first circuit to generate, by discharging the secondary cell in a discharging mode, a magnetic field to induce an AC current in the external device when the cell apparatus is inserted into a cell apparatus accommodating section of the external device, and to generate, in a charging mode to charge the cell, an AC current from a magnetic field received from the external device;
a conversion circuit to generate, in the charging mode, a charge signal from the AC current generated in the first circuit, the conversion circuit supplying the charge signal to the cell interface;
a frequency generator to generate, in the discharging mode, an AC current from a discharge signal received from the cell interface, the frequency generator supplying the AC current to the first circuit;
an input device to receive a selection of the charging mode and the discharging mode;
circuitry configured to generate a control signal based on the selection; and
a switching circuit to couple, based on the control signal, the cell interface to the conversion circuit and the conversion circuit to the first circuit in the charging mode, and couple the cell interface to the frequency generator and the frequency generator to the first circuit in the discharging mode,wherein the cell apparatus accommodating section of the external device is formed in a hinge portion thereof to accommodate a single cell apparatus.
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Abstract
A cell apparatus that emits and receives AC power via magnetic field resonance includes a cell interface and a circuit to generate a magnetic field when emitting the AC power and to generate an AC current when exposed to a magnetic field from an external device. The cell apparatus also includes a switch or sensor to determine whether a charging mode or a discharging mode is active. Because the cell apparatus emits and receives AC power via magnetic field resonance, it can be charged and discharge without electrical contact with another device.
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Citations
29 Claims
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1. A cell apparatus which emits and receives AC power via magnetic field resonance coupling to an external device, comprising:
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a secondary cell; a cell interface to interface with the secondary cell; a first circuit to generate, by discharging the secondary cell in a discharging mode, a magnetic field to induce an AC current in the external device when the cell apparatus is inserted into a cell apparatus accommodating section of the external device, and to generate, in a charging mode to charge the cell, an AC current from a magnetic field received from the external device; a conversion circuit to generate, in the charging mode, a charge signal from the AC current generated in the first circuit, the conversion circuit supplying the charge signal to the cell interface; a frequency generator to generate, in the discharging mode, an AC current from a discharge signal received from the cell interface, the frequency generator supplying the AC current to the first circuit; an input device to receive a selection of the charging mode and the discharging mode; circuitry configured to generate a control signal based on the selection; and a switching circuit to couple, based on the control signal, the cell interface to the conversion circuit and the conversion circuit to the first circuit in the charging mode, and couple the cell interface to the frequency generator and the frequency generator to the first circuit in the discharging mode, wherein the cell apparatus accommodating section of the external device is formed in a hinge portion thereof to accommodate a single cell apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A cell apparatus which emits and receives AC power via magnetic field resonance coupling to an external device, comprising:
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a cell to store an electric charge; a first circuit to generate, by discharging of the cell in a discharging mode, a magnetic field to induce an AC current in the external device when the cell apparatus is inserted into a cell apparatus accommodating section of the external device, and to generate, in a charging mode to charge the cell, an AC current from a magnetic field received from the external device; a conversion circuit to generate, in the charging mode, a charge signal from the AC current generated in the first circuit, the conversion circuit supplying the charge signal to the cell; and a frequency generator to generate, in the discharging mode, an AC current from a discharge signal received from the cell, the frequency generator supplying the AC current to the first circuit; an input device to receive a selection of the charging mode and the discharging mode; circuitry configured to generate a control signal based on the selection; and a switching circuit to couple, based on the control signal, the cell to the conversion circuit and the conversion circuit to the first circuit in the charging mode, and couple the cell to the frequency generator and the frequency generator to the first circuit in the discharging mode, wherein the cell apparatus accommodating section of the external device is formed in hinge portion thereof to accommodate a single cell. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A cell apparatus which emits and receives AC power via magnetic field resonance coupling to an external device, comprising:
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means for interfacing with a cell; means for generating, through discharge of the cell in a discharging mode, a magnetic field to induce an AC current in the external device when the cell apparatus is inserted into a cell apparatus accommodating section of the external device; means for generating, in a charging mode to charge the cell, a first AC current from a magnetic field received from the external device; means for generating, in the charging mode, a charge signal from the first AC current generated, the charge signal being supplied to the means for interfacing; and means for generating, in the discharging mode, a second AC current from a discharge signal received via the means for interfacing, the second AC current being supplied to the means for generating a magnetic field; means for receiving a selection of the charging mode and the discharging mode; means for generating a control signal based on the selection; means for coupling, based on the control signal, the means for interfacing to the means for generating the charge signal and the means for generating the charge signal to the means for generating the first AC current in the charging mode; and means for coupling, based on the control signal, the means for interfacing to the means for generating the second AC current and the means for generating the second AC current to the means for generating the magnetic field in the discharging mode, wherein the cell apparatus accommodating section of the external device is formed in a hinge section thereof to accommodate a single cell apparatus. - View Dependent Claims (24, 25, 26, 27, 28)
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29. A cell apparatus which emits and receives AC power via contactless coupling to an external device, comprising:
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a cell interface to interface with a cell; a first circuit to generate, by discharge of the cell in a discharging mode, an AC current in the external device when the cell apparatus is inserted into a cell apparatus accommodating section of the external device, and to generate, in a charging mode to charge the cell, an AC current via contactless coupling to the external device; a conversion circuit to generate, in the charging mode, a charge signal from the AC current generated in the first circuit, the conversion circuit supplying the charge signal to the cell interface; and a frequency generator to generate, in the discharging mode, an AC current from a discharge signal received from the cell interface, the frequency generator supplying the AC current to the first circuit; an input device to receive a selection of the charging mode and the discharging mode; circuitry configured to generate a control signal based on the selection; and a switching circuit to couple, based on the control signal, the cell interface to the conversion circuit and the conversion circuit to the first circuit in the charging mode, and couple the cell interface to the frequency generator and the frequency generator to the first circuit in the discharging mode, wherein the cell apparatus accommodating section of the external device is formed in a hinge portion thereof to accommodate a single cell.
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Specification