A telemetry system is presented for enabling radio-frequency (RF) communications between an implantable medical device and an external device in a manner which reduces the power requirements of the implantable device by duty cycling its RF circuitry. A wakeup scheme for the implantable device is provided in which the external device transmits a data segment containing a repeating sequence of special wakeup characters in order to establish a communications session with the implantable device. The wakeup scheme may be designed to operate in the context of a handshaking protocol for collision avoidance.
申请公布号
EP1732645(A1)
申请公布日期
2006.12.20
申请号
EP20050737578
申请日期
2005.04.07
申请人
CARDIAC PACEMAKERS, INC.
发明人
BANGE, JOSEPH, E.;KOSHIOL, ALLAN, T.;KRAMER, KAREN, M.;HOLMQUIST, PAUL;HARRIS, THOMAS, J.