Zn. Tang et al., DATA-TRANSMISSION FROM AN IMPLANTABLE BIOTELEMETER BY LOAD-SHIFT KEYING USING CIRCUIT CONFIGURATION MODULATOR, IEEE transactions on biomedical engineering, 42(5), 1995, pp. 524-528
Using the reflected impedance property of an inductive couple (transfo
rmer), a modulation method, Load-Shift Keying using Circuit Configurat
ion Modulator (LSK-CCM), was developed to perform data transmission fr
om an implantable telemeter. With a very simple circuit, this method u
tilizes a radio-frequency electromagnetic field induced with a single
pair of coils to transmit power into the implant and data out of it.