Apparatus for high speed data communication between an external

Details Apparatus for high speed data communication between an external Apparatus for high speed data communication between an external

1993-05-05

1995-01-24

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

128903, 607 60, A61N 137

Patent

active

053839129

ABSTRACT:
A method of communicating data between an external device and an implantable medical device wherein a first pulse is transmitted as electromagnetic energy from one device to the other, is received and stored as electrostatic energy in the second device and, after a delay period representing data to be communicated, the stored energy is released and transmitted as electromagnetic energy back to the first device. A communications circuit in the implantable device for accomplishing the method includes an antenna coil, a non-linear electronic component in circuit communication with the antenna coil, a storage capacitor in circuit communication with the antenna coil and non-linear electronic component for storing energy received by the antenna coil, and a switch for selectively connecting the charged storage capacitor and the antenna coil to discharge the charge stored in the capacitor into the antenna coil.

REFERENCES:
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patent: 4172459 (1979-10-01), Hepp
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patent: 4528987 (1985-07-01), Slocum
patent: 4561443 (1985-12-01), Hogrefe et al.
patent: 4941201 (1990-07-01), Davis

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