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Implantable monitor

  • US 6,230,059 B1
  • Filed: 03/17/1999
  • Issued: 05/08/2001
  • Est. Priority Date: 03/17/1999
  • Status: Expired due to Term
First Claim
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1. In an implantable medical device adapted to be implanted in a patient and operated to record electrical signals of the body for later retrieval and review to aid in diagnosing a condition of the patient, a method for recording such data that may be corrupted by ambient electrical noise comprising the steps of:

  • sampling the electrical signals of interest and providing sample values;

    commanding the storage of a sequence of sample values in a storage register from which the sample values can be retrieved for review at a later time; and

    in response to the commanded storage, examining the sequence of sample values to determine if the sequence of sample values is corrupted with noise or is relatively noise free; and

    if the sequence of sample values is determined to be corrupted by noise, storing the sequence of sample values in a storage register designated as a noisy storage register to only receive a sequence of sample values determined to be corrupted by noise;

    or if the sequence of sample values is determined to be relatively noise free, storing the sequence of sample values in a storage register designated as a relatively noise free storage register to only receive sample values determined to be relatively noise free.

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