WIRELESS CHARGING AND COMMUNICATION
First Claim
1. An apparatus comprising:
- a power circuit;
a processing circuit configured and arranged to operate in an on state in which the processing circuit is powered by the power circuit, and to operate in a low-power state in which the processing circuit consumes less power than in the on state;
a wireless communication circuit configured and arranged toreceive wireless power signals from a remote device, generate power via the wireless signals, and provide the generated power to the power circuit, andreceive wireless data signals from the remote device, and extract data from the wireless data signals by demodulating the wireless data signals using the generated power; and
a memory access circuit configured and arranged with the processing circuit to consume power at different levels relative to the low-power state, wherein while the processing circuit is in the low-power state, the generated power is used to store the extracted data in memory and to communicate wireless data signals to the remote device and, in response to an indication of transitioning from the low-power state to the on state, the stored extracted data is accessed by the processing circuit using power provided by the power circuit.
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Accused Products
Abstract
Wireless power and data transfer can be implemented for powering and communicating with a variety of devices, in a manner that facilitates device access under such wireless power conditions. As consistent with one or more embodiments, wireless power and data are communicated in an apparatus such as a mobile device having a power circuit (e.g., a battery) that powers a processor under normal operating conditions, and that also operates in a low-power state (e.g., in which the processor is not operating and/or not operating using the power circuit). Power is generated using wireless power signals and used to power the power circuit and to both extract and store data from wireless data signals. With this approach, data can be transferred in a low-power state, and the processor can use the stored data upon transitioning to an on state in which the processor is active and powered by the power circuit/battery.
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Citations
20 Claims
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1. An apparatus comprising:
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a power circuit; a processing circuit configured and arranged to operate in an on state in which the processing circuit is powered by the power circuit, and to operate in a low-power state in which the processing circuit consumes less power than in the on state; a wireless communication circuit configured and arranged to receive wireless power signals from a remote device, generate power via the wireless signals, and provide the generated power to the power circuit, and receive wireless data signals from the remote device, and extract data from the wireless data signals by demodulating the wireless data signals using the generated power; and a memory access circuit configured and arranged with the processing circuit to consume power at different levels relative to the low-power state, wherein while the processing circuit is in the low-power state, the generated power is used to store the extracted data in memory and to communicate wireless data signals to the remote device and, in response to an indication of transitioning from the low-power state to the on state, the stored extracted data is accessed by the processing circuit using power provided by the power circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. For use in a device having a battery and a processing circuit, the device being operable in an on state in which the processing circuit is powered by the battery and being operable in an off state in which the processing circuit is not powered by the battery, an apparatus comprising:
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a wireless communication circuit configured and arranged to receive inductive power from an inductive power source, and while the device is in the off state, use the received inductive power to charge the battery and to extract data from wireless data signals; and a memory access circuit configured and arranged to, while the processing circuit is in the off state, use the generated power to store the extracted data in memory. - View Dependent Claims (16, 17, 18)
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19. For use in an apparatus having a power circuit and a processing circuit that operates in an on state in which the processing circuit is powered by the power circuit, and that operates in a low-power state in which the processing circuit consumes less power than in the on state, a method comprising:
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generating power via wireless power signals from a remote device; providing the generated power to the power circuit; extracting data from wireless data signals received from the remote device by demodulating the wireless data signals using the generated power; while the processing circuit is in the low-power state, using the generated power to store the extracted data in memory; and in the processing circuit, accessing the stored extracted data using power provided by the power circuit, in response to transitioning from the low-power state to the on state. - View Dependent Claims (20)
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Specification