Method of transferring power and data via an inductive link
First Claim
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1. A data and power transfer system, comprising:
- a transmitter for transmitting data and power; and
a receiver for receiving the transmitted data and power, wherein data and power is transmitted between said transmitter and said receiver via an electromagnetic induction link.
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Abstract
An apparatus and method for transferring data and power through an electromagnetic induction link is provided. The link operates with high efficiency to allow its use in scenarios with limited available power, such as with a computer'"'"'s USB port. When data is transferred, redundant frequency encoded pulses are used. When power is transferred, a continuous waveform is used, and the-+transferred power may be used to provide power to a variety of devices and components and to recharge batteries.
32 Citations
11 Claims
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1. A data and power transfer system, comprising:
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a transmitter for transmitting data and power; and
a receiver for receiving the transmitted data and power, wherein data and power is transmitted between said transmitter and said receiver via an electromagnetic induction link. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of transferring data and power from one device to another device using an electromagnetic induction link, comprising:
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generating a signal, wherein the signal is a continuous waveform when transferring power and redundant frequency encoded pulses when transferring data;
amplifying the signal;
providing a magnetic field using the amplified signal;
inducing the amplified signal onto the other device;
processing the induced amplified signal, wherein said processing includes rectifying and stabilizing the induced amplified signal to produce a direct current voltage when the signal is a continuous waveform, and creating a series clean digital pulses when the signal is redundant frequency encoded pulses;
charging at least one of a battery and a variety of devices and components using the direct current voltage; and
interpreting information residing in the clean digital pulse.
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8. A method of providing communication between a wireless dental camera and a base station of an intra-oral dental camera system, comprising:
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generating a signal in the base station;
transmitting the generated signal from the base station to the wireless dental camera using an electromagnetic inductive link; and
receiving the signal in the wireless dental camera. - View Dependent Claims (9)
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10. A system for transmitting data and power comprising:
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a generator for generating a signal;
a processor for processing the generated signal; and
a transmitter for transmitted the signal using an electromagnetic induction link, wherein the generated signal is a continuous waveform when power is transmitted and redundant frequency encoded pulses when data is transmitted.
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11. A system for receiving data and power comprising:
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a receiver for receiving a signal transmitted using an electromagnetic induction link;
a charging unit for charging a variety of devices and components when the received signal represents power; and
a signal processor for processing the received signal when the received signal represents data.
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Specification