Inductive power transfer using acoustic or haptic devices
First Claim
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1. A system for inductive power transfer, comprising:
- a first electronic device having a membrane;
a first coil associated with the first electronic device; and
a controller operable to change the first coil between a first mode and a second mode, wherein;
the first coil is operable in the first mode to move the membrane to produce sound using the membrane;
the first coil is operable in the second mode to inductively transmit power wirelessly to a second electronic device, the power received from a power supply physically coupled to the first coil; and
the first electronic device applies current of at least one first frequency to the first coil in the first mode and of at least one second frequency in the second mode.
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Abstract
A first electronic device includes a first coil that is operative in at least two modes. In a first mode, the first coil may be utilized to moves a membrane to produce one or more sound waves, register movement of a membrane to detect one or more sound waves, or generates one or more haptic outputs. In the second mode, the first coil may be used to inductively transmit power to and/or inductively receive power from a second coil included in a second electronic device. In various cases, the second coil may be a dedicated inductive power transmission coil. In other cases, the second coil may be capable of multimode operation similar to the first coil.
123 Citations
20 Claims
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1. A system for inductive power transfer, comprising:
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a first electronic device having a membrane; a first coil associated with the first electronic device; and a controller operable to change the first coil between a first mode and a second mode, wherein; the first coil is operable in the first mode to move the membrane to produce sound using the membrane; the first coil is operable in the second mode to inductively transmit power wirelessly to a second electronic device, the power received from a power supply physically coupled to the first coil; and the first electronic device applies current of at least one first frequency to the first coil in the first mode and of at least one second frequency in the second mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An electronic device, comprising:
- a first coil;
a weight element;
a housing;a mounting mechanism moveably coupling the weight element to the housing; and a controller operable to change the first coil between a first mode and a second mode, wherein; the first coil is operable in the first mode to move the weight element to produce a haptic output via a surface of the housing, the haptic output providing a tactile sensation via the surface; the first coil is operable in the second mode to inductively transmit power to a second electronic device; and
the electronic device applies current of a first frequency to the first coil in the first mode and a second frequency in the second mode.
- a first coil;
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20. A method for inductively transferring power, the method comprising:
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operating a first coil associated with a first electronic device in a first mode wherein the first coil is operable in the first mode to detect sound based on movement of a membrane; and operating the first coil in at least one second mode wherein the first coil is operable in the second mode to inductively transmit power to a second electronic device.
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Specification