Power generation necklaces that mitigate energy absorption in the human body
First Claim
1. A system comprising:
- a necklace comprising;
a driver circuit comprising a first signal generator to generate a first alternating current (AC) electrical signal and a second signal generator to generate a second AC electrical signal having a same frequency as the first AC electrical signal; and
a plurality of conductive loops extending along a band of the necklace and including a first conductive loop and a second conductive loop concentric with the first conductive loop, the first conductive loop being driven by the first AC signal and the second conductive loop being driven by the second AC signal to provide wireless power to a remote device via inductive coupling.
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Accused Products
Abstract
An augmented reality system including a necklace and a contact lens display can be used to project information from the contact lens display onto the retina of the wearer'"'"'s eye. In one example, the necklace generates a time-varying magnetic field (TVMF) that provides energy and information to the contact lens display via inductive coupling. The necklace can be configured to minimize the amount of energy absorbed by the body of the wearer while maintaining power transfer to the contact lens display. In one example, the necklace includes multiple conductive coils generating constructively interfering TVMs to effectively transmit energy while reducing the amount of energy absorbed by the human body. In another example, the necklace includes a parasitic coil generating a destructively interfering TVMF and a magnetic shield to effectively transmit energy while reducing the amount of energy absorbed by the human body.
237 Citations
20 Claims
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1. A system comprising:
a necklace comprising; a driver circuit comprising a first signal generator to generate a first alternating current (AC) electrical signal and a second signal generator to generate a second AC electrical signal having a same frequency as the first AC electrical signal; and a plurality of conductive loops extending along a band of the necklace and including a first conductive loop and a second conductive loop concentric with the first conductive loop, the first conductive loop being driven by the first AC signal and the second conductive loop being driven by the second AC signal to provide wireless power to a remote device via inductive coupling. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system comprising
a necklace comprising: -
a driver circuit to generate at least one alternating current (AC) electrical signal; and a plurality of conductive loops extending along a band of the necklace and including a first conductive loop and a second conductive loop concentric with the first conductive loop, the first conductive loop driven by the AC electrical signal to provide wireless power to a remote device via inductive coupling; and
the second conductive loop comprising a parasitic loop inductively coupled to the first conducive loop. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification