Title :
Two novel techniques for enhancing powering and control of multiple inductively-powered biomedical implants
Author :
Mueller, Jeffrey S. ; Gyurcsik, Ronald S.
Author_Institution :
North Carolina State Univ., Raleigh, NC, USA
Abstract :
Two techniques are presented that are expected to greatly enhance wireless data collection from high-bandwidth biosensors. By steering the aggregate magnetic field from a (near-) orthogonal set of AC-energized coils, selected sensor implants can be powered and communicated with. Communication with individual implants can also be enhanced through half-cycle amplitude modulation. This technique allows bit rates of up to twice the energizing frequency. Initial results and future investigations are discussed
Keywords :
amplitude modulation; biocontrol; biomedical telemetry; biosensors; coils; prosthetic power supplies; AC-energized coils; aggregate magnetic field; biotelemetry; bit rates; communication; control enhancement; energizing frequency; half-cycle amplitude modulation; high-bandwidth biosensors; multiple inductively-powered biomedical implants; near-orthogonal set; powering enhancement; sensor implants; wireless data collection; Aggregates; Amplitude modulation; Biosensors; Bit rate; Coils; Communication system control; Frequency; Implants; Magnetic sensors; Wireless sensor networks;
Conference_Titel :
Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-3583-X
DOI :
10.1109/ISCAS.1997.608708
