Systems and methods for passive radio enabled power gating for a body mountable device
AssigneeVerily Life Sciences LLC
InventorWilliam Biederman
Life of this patent
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Abstract
Systems and methods for passive radio enabled power gating for a body mountable device are disclosed. In one embodiment, a system for power gating includes: a power supply; a Near Field Communication (NFC) antenna to receive NFC signals; a Radio Frequency (RF) rectifier electrically coupled to the NFC antenna to generate a current based on a signal received from the NFC antenna; and an electronic switch coupled between the power supply and a sensor, wherein the RF rectifier is further coupled to the switch to apply the current to the switch to change a state of the switch.
Claims22
A system for power gating comprising:
- a power supply;
- a Near Field Communication (NFC) antenna to receive NFC signals;
- a Radio Frequency (RF) rectifier electrically coupled to the NFC antenna to generate a current based on a signal received from the NFC antenna;
- a sensor terminal adapted to electrically couple to a sensor;
- and
- an electronic switch coupled between the power supply and the sensor terminal to control electrical connection between the power supply in the sensor terminal, wherein the RF rectifier is further coupled to the electronic switch to apply the current to the electronic switch to change a state of the electronic switch.
A method for power gating comprising:
- receiving a Near Field Communication (NFC) signal using a NFC antenna;
- converting the NFC signal to a current;
- and
- applying the current to an electronic switch positioned to interrupt current flow between a power supply and a load, the electronic switch opened or closed by the current.
A single use wearable glucose sensor comprising:
- a power supply;
- a Near Field Communication (NFC) antenna for receiving NFC signals;
- a Radio Frequency (RF) rectifier electrically coupled to the NFC antenna to generate a current based on a signal received from the NFC antenna;
- a blood glucose sensor;
- a processor coupled to the blood glucose sensor, the processor to:
- store sensor data received from the blood glucose sensor;
- transmit the sensor data to a remote device using the NFC antenna;
- and
- an electronic switch coupled between the power supply and the processor, wherein the RF rectifier is further coupled to the electronic switch to apply the current to the electronic switch to provide power from the power supply to the processor.
Dependencies are inferred from the claim text.