Title :
RF-link for cortical neuroprosthesis
Author :
Gerald, José A B ; Tavares, Gaoçalo ; Piedade, Moisés S. ; Varela, Elísio ; Ribeiro, Ricardo
Author_Institution :
Dept. of Electr. & Comput. Eng., Inst. Superior Tecnico, Lisboa, Portugal
Abstract :
This paper describes an RF-link system suitable for intracortical neuroprosthesis. The wireless coupling minimizes the risk of infection and improves the patient health level. Data and power are transmitted by means of an RF low-coupling transformer. Binary FSK modulation is used in the forward link (from outside to implanted prosthesis) and BPSK is used in the backward link (implanted prosthesis to outside). Experimental results are presented, and important concerns regarding the magnetic coupling are addressed.
Keywords :
coupled circuits; frequency shift keying; high-frequency transformers; neurophysiology; phase shift keying; prosthetics; radio links; 1 MHz; 1 to 2 cm; 100 kbit/s; 35 percent; 50 mW; BPSK; RF low-coupling transformer; RF-link system; binary FSK modulation; implanted prosthesis; infection risk minimization; intracortical neuroprosthesis; magnetic coupling; wireless coupling; Clocks; Couplings; Demodulation; Electrodes; Frequency shift keying; Power amplifiers; Power engineering computing; Prosthetics; Radio frequency; Radiofrequency amplifiers;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465193
