Joseph E. Bange,Allan T. Koshiol,Karen M. Kramer,Paul Holmquist,Thomas J. Harris
申请号:
US13682263
公开号:
US20130090705A1
申请日:
2012.11.20
申请国别(地区):
US
年份:
2013
代理人:
摘要:
A telemetry system is presented for enabling wireless 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 wireless communication 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.