摘要:
Power supplied to a particular telemetry system of an implantable device having multiple telemetry systems is managed by a state machine. Power to a transceiver of a device is terminated if the particular telemetry system remains dormant or inactive for a programmable period of time and power to the transceiver is turned on if a particular signal is received by the implantable device.
摘要:
The selection of one communication channel from a plurality of available channels is determined by a state machine. In an automatic selection mode, a first telemetry system has priority over other telemetry systems. A communication session is in progress based on session initiation and termination triggers. An override function allows manual selection of a telemetry system.
摘要:
A system and method for avoiding short-interval paces during pacing mode transitions. The method may be particularly useful in switching to or from a biventricular pacing mode.
摘要:
A system and method for avoiding short-interval paces during pacing mode transitions. The method may be particularly useful in switching to or from a biventricular pacing mode.
摘要:
A system and method for avoiding short-interval paces during pacing mode transitions. The method may be particularly useful in switching to or from a biventricular pacing mode.
摘要:
A far-field radio frequency (RF) telemetry system for communicating with an implantable medical device includes a diversity antenna system. Multi-frame messages each including multiple outgoing data frames are transmitted to the implantable medical device. In response, the implantable medical device transmits response data frames each following one or more of the outgoing data frames, according to a predetermined communication protocol. An antenna control circuit selects an antenna of the diversity antenna system for transmitting the outgoing data frames and/or receiving the response data frames based the quality of signal reception associated with the response data frames.
摘要:
Integrity of a wirelessly telemetered message communicated between an implantable medical device and an external programmer is authenticated by encoding the message. The message is encrypted based on a random number or time stamp and a secret key. The message is authenticated by encryption and decryption or by executing a hash function.
摘要:
Communications with an implantable device are conducted using a physical telemetry link dynamically selected from multiple physical telemetry links based on selected criteria including, for example, bandwidth, security, data throughput, channel availability and reliability.
摘要:
This document discloses, among other things, a telemetry system that controls access to assets of an implantable device as a function of the manner of initiating the communication session or an access code. A tiered hierarchy of assets are associated with corresponding levels of access. A tiered array of security mechanisms are associated with the hierarchy of assets.
摘要:
This document discloses, among other things, a telemetry system that controls access to assets of an implantable device as a function of the manner of initiating the communication session or an access code. A tiered hierarchy of assets are associated with corresponding levels of access. A tiered array of security mechanisms are associated with the hierarchy of assets.