Patent ID: 7953488

Claim:
A method comprising: receiving a plurality of sensed signals, each of the sensed signals sensed by a respective one of a plurality of sensing configurations during a qualification event; analyzing each of the sensed signals to detect cardiac events during the qualification event; generating qualification information for each of the sensing configurations based on the analysis, the qualification information for each of the sensing configurations indicating whether the sensing configuration is qualified for subsequent cardiac event detection based on an accuracy of the cardiac event detection for that sensing configuration during the qualification event; identifying a first qualified one of the plurality of sensing configurations as a primary sensing configuration and a second qualified one of the plurality of sensing configurations as an alternate sensing configuration; storing the qualification information for at least the alternate sensing configuration; and receiving a signal sensed by the primary sensing configuration subsequent to the qualification event; analyzing the signal received subsequent to the qualification event to detect cardiac events subsequent to the qualification event; and subsequently switching, based on the previously stored qualification information for the alternate sensing configuration, from receiving and analyzing the signal sensed by the primary sensing configuration to receiving and analyzing a signal sensed by the alternate sensing configuration to detect cardiac events.