Method and apparatus for the suppression of far-field interference signals for implantable device data transmission systems
First Claim
1. An electronic device for non-invasively communicating with an implanted electronic device, comprising:
- a transceiver, including an antenna, a transmitter portion and a receiver portion, said transceiver including means to send data to and receive data from said implanted device; and
said antenna comprising first and second coils arranged in serial phase opposition to suppress far-field interference signals when said transceiver is receiving data from said implanted device.
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Accused Products
Abstract
An electronic device for non-invasively communicating with an implanted device, such as, for example, a cardiac pacemaker. The electronic programming device includes a transceiver having an antenna, a transmitter portion and a receiver portion. The antenna portion is arranged to have two coils arranged in series phase opposition to suppress the effects of far-field interference signals on received near-field signals from the implanted device, when the transceiver is receiving data from the implanted device. The electronic device further includes means to isolate the transmit and receive functions thereof to prevent cancellation of the transmitted signal when the transceiver is in the transmit mode.
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Citations
26 Claims
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1. An electronic device for non-invasively communicating with an implanted electronic device, comprising:
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a transceiver, including an antenna, a transmitter portion and a receiver portion, said transceiver including means to send data to and receive data from said implanted device; and said antenna comprising first and second coils arranged in serial phase opposition to suppress far-field interference signals when said transceiver is receiving data from said implanted device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electronic device, comprising:
a transceiver and an antenna coupled to said transceiver, said antenna comprising;
a first coil and a second coil, said first and second coils being arranged in series phase opposition when said transceiver is receiving data from an implanted device, said arrangement of said first and second coils suppressing far-field interference signals.- View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for suppressing far-field interference signals when non-invasively communicating with an implanted electronic device using an external transceiver, comprising the steps of:
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receiving a signal from said implanted device via an antenna of said transceiver, said antenna comprising a first coil and a second coil, said first and second coils being spatially separated and arranged in serial phase opposition; receiving a first signal on said first coil and a second signal on said second coil; subtracting said first signal and said second signal to obtain a resultant signal, said resultant signal representing data received from said implanted device; and transmitting said resultant signal to a receiver portion of said transceiver. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification