Abstract: A method and apparatus for communicating digital data on a bus arrangement is provided. The bus arrangement includes one or more encoding circuits, decoding circuits, and transmission mediums. Each encoding circuit includes a digital-to-analog converter circuit communicatively coupled to a multi-phase analog encoding circuit. Each decoding circuit corresponds to a respective encoding circuit and includes a multi-phase analog decoding circuit communicatively coupled to an analog-to-digital converter circuit, and a multiplexing circuit communicatively coupled to the analog-to-digital converter circuit. Each respective encoding circuit and a corresponding decoding circuit is communicatively coupled by a transmission medium. Digital data is converted to at least one analog signal and encoded upon a radio frequency carrier signal. The carrier signal is transmitted to a destination where it is decoded and the digital data reconstituted.

Abstract: A damping device with a top element, a bottom element, and a viscoelastic element between the top and bottom elements. The damping device exerts significant shear displacement across the viscoelastic element upon deflecting. The damping device may have first and second ends and an intermediate portion between the first and second ends. The damping device may have a generally longitudinal extension with an elevation in the direction of the top element in the intermediate portion. The elevation may have a substantially V-shape when the damping device is unloaded. A system in accordance with the principles of the present invention including a system cabinet, a plurality of carriers mounted in the system cabinet for receiving hard disk drives, and a plurality of damping devices according to the invention mounted between the carriers and the system cabinet.