Closed-loop downlink telemetry and method for implantable medical device

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United States of America Patent

PATENT NO

5324315

SERIAL NO

08106495

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Abstract

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A closed loop system for attaining premium telemetry performance for vector field electromagnetically coupled telemetry systems. The disclosed system utilizes a linear ramped envelope for downlink RF bursts, resulting in a detected pulse width in the implanted device which is proportional to the downlink detection margin. The detected pulse width, when uplink telemetered to an external programming unit allows the programming unit to generate a telemetry status feedback signal for the user positioning the programming head with respect to the implant site. Feedback based upon both uplink and downlink signal strength in especially advantageous in dual-coil systems where there are distinct and unique coupling coefficients for uplink and downlink.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DUTHLER, REED A.MINNEAPOLIS, MN21
MEDTRONIC, INC.MINNEAPOLIS, MN5440

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Grevious, John J Minneapolis, MN 22 1496

Cited Art Landscape

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