Supplying power to a computer accessory from a captured wifi signal
First Claim
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1. A method, executable by a computing accessory, the method comprising:
- capturing a wifi signal from a computing device corresponding to the computing accessory;
determining an amount of energy available, from the wifi signal, to tune a circuit within the computing accessory;
harvesting the energy from the wifi signal; and
powering the computing accessory based on the harvested energy.
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Abstract
Examples herein disclose capturing a wifi signal from a computing device corresponding to a computing accessory and harvesting energy from the captured wifi signal. The examples power the computing accessory based on the harvested energy.
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Citations
11 Claims
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1. A method, executable by a computing accessory, the method comprising:
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capturing a wifi signal from a computing device corresponding to the computing accessory; determining an amount of energy available, from the wifi signal, to tune a circuit within the computing accessory; harvesting the energy from the wifi signal; and powering the computing accessory based on the harvested energy. - View Dependent Claims (2, 3, 4)
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5. A computing accessory comprising:
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an antenna module to capture a wifi signal from a corresponding computing device; a rectifying circuit to convert an analog power associated with the wifi signal from the antenna module to a direct current (DC) voltage; a tuning circuit to match impedance of the antenna module to an expected received power of the wifi signal between 0.01 milliwatts and two milliwatts; and a power management circuit to;
supply the DC voltage to the computing accessory for operation of the computing accessory, wherein the DC voltage is a primary source of power for the computing accessory,wherein the corresponding computing device is a computer configured to receive input from the computing accessory. - View Dependent Claims (6, 7, 8, 9)
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10. A non-transitory machine-readable storage medium comprising instructions that when executed by a processor cause a computing accessory to:
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capture a wifi signal of at least 2.4 gigahertz (GHz) from a computing device corresponding to the computing accessory; determine an amount of energy available, from the wifi signal, to tune a circuit within the computing accessory; convert an analog power extracted from the w fi signal to a direct current (DC) voltage; and utilize the DC voltage as a primary source of power for operation of the computing accessory. - View Dependent Claims (11)
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Specification