A wireless data system constructed of SAW-based receiver/transmitter and its applications to medical cares

The present paper describes a wireless data system dedicated to medical cares by employing SAW-based receiver and transmitter. In order to realize the portability as well as to lower the power consumption, an ASIC architecture is additionally devised to implement the intermittent drive and the communication protocol, by means of which the wireless data system can admit portable monitoring facilities in medical cares, i.e. the wandering prevention of patients with senile dementia and the 24-hour observation of portable electrocardiographs.