Device with dual power sources
First Claim
1. A method comprising:
- at a wearable device that includes;
at least one sensor,a primary power supply configured to harvest radio frequency (RF) radiation received from an external reader and use the harvested RF radiation to power the at least one sensor, andan auxiliary power supply configured to harvest energy other than that received from the external reader and use the harvested energy to supply power to the at least one sensor,receiving a signal indicative of an availability of the auxiliary power supply to provide power to the wearable device;
responsive to receiving the signal, the wearable device enabling the auxiliary power supply; and
the wearable device operating the auxiliary power supply to supply power to the at least one sensor.
3 Assignments
0 Petitions
Accused Products
Abstract
A wearable device includes a sensor, auxiliary electronics, a primary power supply configured to harvest radio frequency (RF) radiation received from an external reader and use the harvested RF radiation to power the sensor, and an auxiliary power supply configured to harvest energy other than that received from the external reader and use the harvested energy to supply power to the sensor and/or the auxiliary electronics. The external reader may supply less power in response to operation of the auxiliary power supply. Additionally or alternatively, in response to a determination that the auxiliary power supply is unable to supply power, the wearable device may disable all auxiliary electronics but for the sensor. In response to a determination that the primary power supply is unable to supply power but the auxiliary power supply is able to supply power, the wearable device may retain operating parameters in the memory storage unit using the auxiliary power supply.
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Citations
23 Claims
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1. A method comprising:
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at a wearable device that includes; at least one sensor, a primary power supply configured to harvest radio frequency (RF) radiation received from an external reader and use the harvested RF radiation to power the at least one sensor, and an auxiliary power supply configured to harvest energy other than that received from the external reader and use the harvested energy to supply power to the at least one sensor, receiving a signal indicative of an availability of the auxiliary power supply to provide power to the wearable device; responsive to receiving the signal, the wearable device enabling the auxiliary power supply; and the wearable device operating the auxiliary power supply to supply power to the at least one sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wearable device comprising:
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a sensor; an antenna; auxiliary electronics, including a memory storage unit; a first power supply configured to harvest radio frequency (RF) radiation received at the antenna from an external reader and use the harvested RF radiation to supply power to the sensor and the auxiliary electronics; a second power supply configured to harvest energy other than that received from the external reader and use the harvested energy to supply power to the sensor and the auxiliary electronics; and a controller electrically connected to the first power supply and the second power supply, the controller being configured to; enable the second power supply in response to a determination that the second power supply is able to supply power, disable all auxiliary electronics but for the sensor in response to a determination that the second power supply is unable to supply power, and retain operating parameters in the memory storage unit using the second power supply in response to a determination that the first power supply is unable to supply power but the second power supply is able to supply power. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A non-transitory computer readable medium (CRM) having instructions stored thereon that, when executed by one or more processors associated with a wearable device, cause the wearable device to perform operations, the operations comprising:
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receiving a signal indicative of an availability of an auxiliary power supply to provide power to the wearable device, the wearable device including; at least one sensor, a primary power supply configured to harvest radio frequency (RF) radiation received from an external reader and use the harvested RF radiation to power the at least one sensor, and an auxiliary power supply configured to harvest energy other than that received from the external reader and use the harvested energy to supply power to the at least one sensor; responsive to receiving the signal, enabling the auxiliary power supply; and operating the auxiliary power supply to supply power to the at least one sensor. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification