Patent ID: 8046079

Claim:
A system, comprising: an implantable medical device including: a therapy module; and an implant telemetry module; and an external system, including: a programming module; and an external telemetry module, wherein the implant telemetry module and the external telemetry module each include a telemetry circuit including: an antenna; a transceiver coupled to the antenna, the transceiver adapted to transmit over a plurality of channels each representing a predetermined frequency band for data transmission between the implantable medical device and the external system; and a telemetry controller coupled to the transceiver, the telemetry controller adapted to control a channel hopping process including detecting failure of a communication session on a first frequency, synchronously scanning a subset of available channels included in a synchronous scan list for a response from the implantable medical device when the failure is detected, resuming the communication session with the implantable medical device after receiving a response, on a second frequency on which the response was received, and asynchronously scanning available channels when no response is received during synchronous scanning.