Patent ID: 8692206

Claim:
An implantable radiation sensing transponder, comprising: an x-ray radiation sensor device operable to detect a transcutaneously received x-ray radiation stimulus; an exposure determination device including one or more memory devices having radiation exposure information stored thereon, the exposure determination device configured to record cumulative exposure information based on the transcutaneously received x-ray radiation stimulus, compare at least one measurand output from the x-ray radiation sensor device indicative of the x-ray radiation exposure event to the radiation exposure information, generate user-specific lifetime exposure data based on the comparison, and report one or more parameters from the user-specific lifetime exposure data when the transcutaneously received x-ray radiation stimulus meets or exceeds a target range; a speech recognition module operably coupled to the exposure determination device, the speech recognition module including circuitry that causes the system to change between a transmit state and a receive state responsive to one or more audio inputs; and an interrogation interface operably coupled to the exposure determination device.