METHOD AND APPARATUS FOR SENSING AND TRANSMITTING A BODY CHARACTERISTIC OF A HOST

摘要

A passive transponder (104) including an integrated sensor (132) is disclose d. The transponder receives an interrogation signal from a scanner (100), and i s operable to transmit identification information and body characteristic information to a scanner. The scanner is operable to receive the identification and body characteristic information and display (120) and/or store the information. The sensor (140) is integrated into the transponder. If temperature is to be sensed, the transponder determines the temperature of t he host using the temperature dependent characteristics of the P-N junction of the integrated circuit.