Portable computing device peripheral employing fuel cell to recharge battery
First Claim
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1. A peripheral device for a portable computing device, comprising:
- a rechargeable battery;
operating circuitry powered by the rechargeable battery;
a fuel cell coupled to provide charging current to the rechargeable battery; and
battery charging circuitry operatively coupled to the rechargeable battery and the fuel cell to control charging of the rechargeable battery by the fuel cell.
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Abstract
A peripheral device is provided for a portable computing device that includes a rechargeable battery, operating circuitry powered by the rechargeable battery, and a fuel cell coupled to provide charging current to the rechargeable battery. Battery charging circuitry is operatively coupled to the rechargeable battery and the fuel cell to control charging of the rechargeable battery by the fuel cell.
32 Citations
19 Claims
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1. A peripheral device for a portable computing device, comprising:
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a rechargeable battery;
operating circuitry powered by the rechargeable battery;
a fuel cell coupled to provide charging current to the rechargeable battery; and
battery charging circuitry operatively coupled to the rechargeable battery and the fuel cell to control charging of the rechargeable battery by the fuel cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A portable computing device comprising:
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processing circuitry;
a communication interface; and
a peripheral device comprising;
a rechargeable battery;
operating circuitry powered by the rechargeable battery, including communication circuitry for communicating data with the processing circuitry via the communication interface;
a fuel cell coupled to provide charging current to the rechargeable battery; and
battery charging circuitry operatively coupled to the rechargeable battery and the fuel cell to control charging of the rechargeable battery by the fuel cell. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification