Ultrasonic Multiplexing Network for Implantable Medical Devices
First Claim
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1. A system for transmitting data ultrasonically through biological tissue comprising:
- a network comprising a plurality of nodes, at least a portion of the nodes implantable within a body;
a first node implantable in the body and comprising an ultrasonic transducer and a transmitter, and a second node comprising an ultrasonic receiver;
the transmitter at the first node including an orthogonal frequency division multiplex (OFDM) signal generator operative to encode an input information bit stream on orthogonal subcarriers for transmission as an ultrasonic signal through the body to the ultrasonic receiver at the second node; and
the ultrasonic receiver at the second node operative to decode the ultrasonic signal received from the first node to recover the information bit stream.
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Abstract
A system and method for transmitting data ultrasonically through biological tissue employs a network of a plurality of nodes, at least a portion of the nodes implantable within the biological tissue. At least one implanted node includes a transmitter having an orthogonal frequency division multiplex signal generator to encode an ultrasonic signal for transmission through the biological tissue to an ultrasonic receiver at another node.
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Citations
25 Claims
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1. A system for transmitting data ultrasonically through biological tissue comprising:
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a network comprising a plurality of nodes, at least a portion of the nodes implantable within a body; a first node implantable in the body and comprising an ultrasonic transducer and a transmitter, and a second node comprising an ultrasonic receiver; the transmitter at the first node including an orthogonal frequency division multiplex (OFDM) signal generator operative to encode an input information bit stream on orthogonal subcarriers for transmission as an ultrasonic signal through the body to the ultrasonic receiver at the second node; and the ultrasonic receiver at the second node operative to decode the ultrasonic signal received from the first node to recover the information bit stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for transmitting data ultrasonically through biological tissue comprising:
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at a first node implanted in a body, encoding an information bit stream on orthogonal subcarriers using an orthogonal frequency division multiplexing modulation scheme; transmitting the encoded signal through biological tissue; and at a second node, receiving the encoded signal and decoding the signal to recover the information bit stream. - View Dependent Claims (25)
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Specification