Multi-coil field generation in an electronic contact lens system
First Claim
1. A system, comprising:
- a plurality of wearable conductive coils each configured to generate a corresponding magnetic field that collectively comprise a resulting magnetic field;
an electronic contact lens, comprising;
a power circuit configured to produce power in response to the resulting magnetic field; and
a feedback circuit configured to transmit a power signal representative of the produced power and an orientation signal representative of an orientation of the electronic contact lens; and
a controller electrically coupled to the plurality of conductive coils and configured to receive the power signal and the orientation signal and to drive the plurality of conductive coils based on the received power signal and the orientation signal.
2 Assignments
0 Petitions
Accused Products
Abstract
An augmented reality system includes an electronic contact lens and a plurality of conductive coils to be worn, for instance, around a neck, around an arm, or on a chest of a user. The conductive coils can inductively couple to the electronic contact lens by producing magnetic fields that the electronic contact lens can convert into power. A direction of the resulting magnetic at the electronic contact lens can rotate over time, enabling the electronic contact lens to periodically form a strong inductive coupling with the plurality of conductive coils despite the orientation of the electronic contact lens. The electronic contact lens can also output a feedback signal representative of the power produced at the electronic contact lens or an orientation signal representative of the orientation of the eye, and the magnetic fields produced by the conductive coils can be altered based on the feedback signal or orientation signal.
253 Citations
21 Claims
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1. A system, comprising:
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a plurality of wearable conductive coils each configured to generate a corresponding magnetic field that collectively comprise a resulting magnetic field; an electronic contact lens, comprising; a power circuit configured to produce power in response to the resulting magnetic field; and a feedback circuit configured to transmit a power signal representative of the produced power and an orientation signal representative of an orientation of the electronic contact lens; and a controller electrically coupled to the plurality of conductive coils and configured to receive the power signal and the orientation signal and to drive the plurality of conductive coils based on the received power signal and the orientation signal. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9)
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7. A system, comprising:
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a plurality of wearable conductive coils each configured to generate a corresponding magnetic field that collectively comprise a resulting magnetic field; an electronic contact lens, comprising; a power circuit configured to produce power in response to the resulting magnetic field; and a feedback circuit configured to transmit a power signal representative of the produced power; and a controller electrically coupled to the plurality of conductive coils and configured to receive the power signal and to drive the plurality of conductive coils based on the received power signal by increasing a current within a first of the conductive coils and decreasing a current within a second of the conductive coils.
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10. A method for providing power to an electronic contact lens, comprising:
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providing, by a controller, a drive signal to each of a plurality of wearable conductive coils to produce corresponding magnetic fields that collectively comprise a resulting magnetic field; receiving, by the controller, a power signal representative of power generated by the electronic contact lens in response to the resulting magnetic field, and an orientation signal representative of the orientation of the electronic contact lens in the resulting magnetic field; and adjusting, by the controller, the corresponding magnetic fields produced by the plurality of conductive coils by adjusting the drive signals provided to each of the plurality of conductive coils based on the received power and orientation signals. - View Dependent Claims (11, 12, 13, 14, 16, 17)
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15. A method for providing power to an electronic contact lens, comprising:
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providing, by a controller, a drive signal to each of a plurality of wearable conductive coils to produce corresponding magnetic fields that collectively comprise a resulting magnetic field; receiving, by the controller, a power signal representative of power generated by the electronic contact lens in response to the resulting magnetic field; and adjusting, by the controller, the corresponding magnetic fields produced by the plurality of conductive coils by adjusting the drive signals provided to each of the plurality of conductive coils based on the received power signal, adjusting, by the controller, the corresponding magnetic fields produced by the plurality of conductive coils by adjusting the drive signals provided to each of the plurality of conductive coils based on the received power signal, and wherein adjusting the drive signals comprises increasing a current within a first of the conductive coils and decreasing a current within a second of the conductive coils.
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18. A system, comprising:
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a plurality of wearable conductive coils each configured to generate a corresponding magnetic field that collectively comprise a resulting magnetic field; an electronic contact lens, comprising; a power circuit configured to produce power in response to the resulting magnetic field; and a feedback circuit configured to transmit a power signal if an amount of power produced by the power circuit meets a condition, the power signal indicating the amount of power produced by the power circuit; and a controller electrically coupled to the plurality of conductive coils and configured to receive the power signal and to drive the plurality of conductive coils based on the received power signal. - View Dependent Claims (19, 20, 21)
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Specification