## Figure 6: Prototype and Representation of the Synchronization Message

2019-06-11T06:59:34Z (GMT) by
(A) Pacemaker prototype with electrode- and battery connectors and user interface. (B) Schematic representation of the pulse position–modulated synchronization message. The data are modulated as several short pulses, which have a communication frequency ${f}_{c}$ that is favorable for signal transmission. ${f}_{c}$ = communication frequency; PCB = printed circuit board.