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Receiver employing digital filtering for use with an implantable medical device

  • US 6,223,083 B1
  • Filed: 04/16/1999
  • Issued: 04/24/2001
  • Est. Priority Date: 04/16/1999
  • Status: Active Grant
First Claim
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1. A receiver for a modulated analog telemetry signal transmitted from a body implantable medical device, comprising:

  • an antenna;

    an amplifier directly coupled to the antenna to provide an unfiltered signal representative of the modulated analog telemetry signal;

    a demodulator circuit coupled to the amplifier, the demodulator circuit demodulating the unfiltered signal to produce a digital information signal; and

    a digital filter, coupled to the demodulator, that removes high frequency content of the digital information signal to produce a filtered digital information signal.

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