A document is covered by a laminate comprising a layer of microspheres over an adhesive layer covering a source image such as a photograph, printed matter, or a bar code arranged on a substrate. The converter comprises an input for receiving an input data stream at a first rate and an FIR filtering stage. The slider bar further incorporates a pyrotechnic lap pretensioner function for exerting pretensioning motion of the lap belt in response to a vehicle impact. Heat sources within a relatively thin layer of hydrocarbon material may be positioned in a staggered pattern near to edges of the layer so that superposition of heat from the heat sources allows a large percentage of the layer to reach a desired temperature.