Abstract: Pairing information signals are transmitted for a selected period of time after the transceiver powers up. Generally identical heartbeat signals are transmitted by the transceiver for a longer period of time than the pairing information signals. When the monitor receives the pairing information, it will connect to the transceiver; however, if the monitor does not receive a selected number, e.g. 3, of heartbeat signals, it will disconnect from the transceiver and enter a standby mode, whereupon if the required heartbeats are received, the monitor will connect to the transceiver emitting them. Once connected in this manner, the monitor is able to process the tire sensor data relayed by the transceiver.

Abstract: A method for storing digitized electrogram and diagnostic data in a read/write memory of an implantable cardiac therapy device which includes the steps of configuring the memory into first and second memory blocks, configuring the first memory block into a plurality of successive EGM data records for storage of the electrogram data, and the second memory block into a plurality of successive diagnostic data records for storage of the diagnostic data, storing successive electrogram data corresponding to successive EGM trigger events in respective, successive ones of the EGM data records, and, storing successive diagnostic data corresponding to successive diagnostic trigger events in respective, successive ones of the diagnostic data records. The electrogram data is preferably written into the EGM data records in a wraparound, FIFO manner.