Patent ID: 6873875

Claim:
An implantable pulse generator, comprising: a first lead having one or more electrodes; a signal sensor coupled to one or more electrodes on the first cardiac lead to sense a first cardiac signal related to a heart; a blanking window initiator coupled to the signal sensor, wherein the blanking window initiator identifies cardiac events in the first cardiac signal, and wherein the blanking interval includes a repeatable noise window blanking interval; and a noise detector coupled to the signal sensor and the blanking window initiator, wherein the noise detector analyzes the first cardiac signal to detect noise identified by a predetermined noise frequency range in the first cardiac signal during the repeatable noise window blanking interval, wherein the blanking window initiator repeats the repeatable noise window blanking interval when the noise detector detects noise in the first cardiac signal during the repeatable noise window blanking interval; and wherein the blanking window initiator identifies sensed cardiac events and paced cardiac events, and wherein the blanking window initiator adjusts the blanking interval to a first overall duration when a paces cardiac event is identified and to a second different overall duration when a sensed cardiac event is identified.