Implantable medical device communication system with macro and micro sampling intervals
First Claim
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1. A medical device comprising:
- device circuitry for controlling the operation of the device and for processing data; and
a receiver for sampling energy on a communication channel based on a macro sampling interval and a micro sampling interval, a duration of a series of samples, spaced by the micro sampling interval, being less than the macro sampling interval, the receiver sampling to detect presence of a transmission signal on the communication channel, and to thereafter receive data contained in the transmission signal.
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Abstract
A communication signal is communicated between an implantable medical device including an implant transceiver and an external unit including an external unit transceiver. At least one of the transceivers includes a receiver capable of sampling a communication channel for the communication signal at times based on a macro sampling interval and a micro sampling interval. The sampling includes a series of micro samples. The duration of the series of micro samples is less than the macro sampling interval.
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Citations
28 Claims
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1. A medical device comprising:
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device circuitry for controlling the operation of the device and for processing data; and
a receiver for sampling energy on a communication channel based on a macro sampling interval and a micro sampling interval, a duration of a series of samples, spaced by the micro sampling interval, being less than the macro sampling interval, the receiver sampling to detect presence of a transmission signal on the communication channel, and to thereafter receive data contained in the transmission signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of operating a receiver of a medical device, the method comprising:
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sampling at a first time to determine whether energy is present on a communication channel, the first time based on a macro sampling interval;
sampling at periodic times after the first time with a series of samples to determine if data is about to be transmitted, the periodic times based on a micro sampling interval, wherein a duration of the series of samples is less than the macro sampling interval; and
turning on to receive the data after determining that data is about to be transmitted. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A communication system comprising:
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an implantable medical device including an implant transceiver;
an external unit including an external unit transceiver;
wherein at least one of the transceivers includes a receiver that samples for a communication at times based upon a macro sampling interval and a micro sampling interval, wherein a duration of a series of samples, spaced by the micro sampling interval, is less than the macro sampling interval. - View Dependent Claims (25, 26, 27, 28)
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Specification