A cross-chamber refractory period with an adaptively adjusted sensing threshold for use by a cardiac pacemaker is disclosed. In response to a cross-chamber event, the sensing threshold of a sensing channel is raised to an adaptively adjusted cross-chamber maximum refractory value. The cross-chamber maximum...http://www.google.de/patents/US20040127947?utm_source=gb-gplus-sharePatent US20040127947 - Adaptive sensing threshold for cross-chamber refractory period
