The Design and Construction of a Module to Demonstrate a Method for Transmission of Data from a Medical Implant,
Abstract
This report describes methods of powering devices to which only a/c contact can be made and receiving data transmitted back from them. Examples of such devices include medical implants which communicate with the external environment via ultrasound or rf links. Two breadboard systems have been built to demonstrate the techniques. In both the device is powered by picking up an ac inpt and rectifying it. A signal voltage detected by the device is encoded as a frequency, transmitted and decoded. In one case this is performed on a separate channel from that used to power the device. In the other only one channel is used for both signals, and data is transmitted and decoded. In one case this is performed on a separate channel from that used to power the device. In the other only one channel is used for both signals, and data is transmitted by modulating the impedance presented by the device. The resulting modulation of the input signal was picked up by the external circuit and decoded.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1985
- Accession Number
- ADA163750
Entities
People
- I. Morgan
- J. D. Benjamin
Organizations
- Royal Signals and Radar Establishment