Telemetry system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 7, 1986
Grant Date -
N/A
app pub date -
Mar 23, 1984
filing date -
Mar 23, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A telemetry system is provided for communicating with an implanted pacer. A patient's coil is positioned on the patient substantially overlying the implanted pacer. An FM oscillator generates a waveform which varies in frequency and amplitude in response to the telemetry signals from the implanted pacer. The varying frequency generated by the oscillator may be utilized to determine the proximity of the patient's coil with respect to the implanted pacer. An analog signal is generated that has a parameter which varies in inverse proportion to the proximity of the coil to the pacer. The varying waveform generated by the oscillator may also be used to reconstruct telemetry signals that are generated by a tank circuit that is contained in the pacer. An automatic gain control circuit is used to provide a corrected gain notwithstanding the position of the patient's coil with respect to the implant.
First Claim
Family
International Classification(s)
- Non-US Classification not provided for expired patents
Cited Art Landscape
Patent Citation Ranking
- Citation Ranking not provided for expired patents
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