Abstract: A device including a controller, an EMI shield and heater assembly, and an electrically conducting chassis. The EMI shield and heater assembly has a conductive layer and a plurality of conductive input lines. The conductive layer is divided into a plurality of cells, which are connected to adjacent cells via conductive layer material and have a cut in the conductive layer material between adjacent cells. The plurality of conductive input lines are connected to respective of the voltage outputs and electrically contact only a first group of cells. The controller is configured to provide respective voltages to the first group of cells to heat regions of the conductive layer. The electrically conducting chassis is electrically connected to a second group of cells, and electrically isolated from the first group of cells. None of the cells in the first group of cells are adjacent to each other.

Abstract: An EMI-hardened multimedia interface device compatible with high-speed DisplayPort data transmission incorporates coupled isolation transformers on the source and sink sides for transmitting high-pass DisplayPort main data lane signals across a shielded cable assembly. The multimedia interface includes a bidirectional auxiliary data channel with source-side and sink-side isolation transformers. An extended-range EMI hardened interface device may prevent signal loss over longer cable runs by using the transformer in a BALUN configuration and utilizing coaxial cabling and source-side RF amplifiers to boost high-frequency gain. Interface devices may incorporate source-side and sink-side BALUNs or tri-filar RF transformers with AC coupling via serial capacitors to improve efficiency at high frequencies.

Abstract: A system determining whether the shielding on a shielded signal or power cable has been compromised without the need of detaching the cable. A special-made cable is used with a dedicated shielding surveillance conductor and a process for injecting a known current on the shield of the cable and monitoring a voltage on the shielding surveillance conductor.