METHOD AND APPARATUS FOR ENERGY HARVEST FROM A PROXIMITY COUPLING DEVICE
First Claim
Patent Images
1. A proximity integrated circuit card (PICC), comprising:
- a resonant circuit to receive magnetic energy from an external source;
a rectifier to convert the magnetic energy received at the resonant circuit to a voltage energy;
a capacitor to receive and store the voltage energy from the rectifier; and
a BLE radio to electrically communicate with the capacitor and to be powered by the voltage energy stored in the capacitor.
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Accused Products
Abstract
The disclosure generally relates to a method and apparatus for energy harvest from a proximity coupling device (PCD) by a proximity integrated circuit card. In one embodiment, the PICC includes an integrated BLE. The BLE may be exclusively charged by the external magnetic field received from the PCD. The PCD may be configured to detect when the PICC is nearby and increase its duty cycle to thereby increase the magnetic field imposed on the PICC. The PICC may include circuitry to receive and convert the magnetic field to electric potential or voltage. The voltage may be store at a capacitor for BLE'"'"'s usage.
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Citations
16 Claims
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1. A proximity integrated circuit card (PICC), comprising:
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a resonant circuit to receive magnetic energy from an external source; a rectifier to convert the magnetic energy received at the resonant circuit to a voltage energy; a capacitor to receive and store the voltage energy from the rectifier; and a BLE radio to electrically communicate with the capacitor and to be powered by the voltage energy stored in the capacitor. - View Dependent Claims (2, 3, 4, 5)
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6. A tangible machine-readable non-transitory storage medium that contains instructions, which when executed by one or more processors result in performing operations comprising:
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discovering a proximity integrated circuit card (PICC) within a magnetic field range of a proximity coupling device (PCD); identifying the discovered PICC as having a communication platform powered by the harvested energy; increasing duty cycle of the PCD to expose the PICC to increased magnetic field; resuming default duty cycle when the PICC is outside of the magnetic field range of the PCD. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A proximity coupling device (PCD) comprising one or more processors and circuitry, the circuitry including:
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a first logic to discover a proximity integrated circuit card (PICC) within a magnetic field range of a proximity coupling device (PCD); a second logic to determine the discovered PICC as having a Bluetooth Low Energy (BLE) radio; a third logic to increase duty cycle of the PCD to expose the PICC to increased magnetic field and to resume a default duty cycle when the PICC is outside of the magnetic field range of the PCD. - View Dependent Claims (13, 14, 15, 16)
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Specification