A system provides synthesized chest lead signals of a conventional 12 lead electrocardiogram signal set. This feature enables the use of the dimension or measure group without physically creating and managing the contents of the cube so defined. The processor is configured to cause the apparatus to determine a linear phase variation between at least first and second transmissions from first and second transmission points based at least in part on a propagation delay difference between the first and second transmissions, and transmit the phase variation information for at least the first and the second transmissions. The floating electrode includes an intercapacitor node configured to self-adjust to a value less than a working voltage impressed on the stacked capacitor. The auxiliary eyeglass frame also includes a bridge and temporal extensions. The data concerning gaming unit configuration may be copied via an external device, such as a smart storage device or a dumb storage device, copied directly between gaming units or copied via a network storage device of a network that interconnects gaming units.