Abstract: The present invention relates to a discontinuous business form construction created preferably from differential substrates that have been provided with one or more removable elements such as cards, labels, tags and differential substrates. The form construction is desirably a composite form having at least first and second discrete portions or segments one of which carries one or more removable elements and the other of which provides an information carrying portion. The form construction of the present invention is produced in such a manner so that when a series of the forms are placed into a stack, such as in a tray that supplies forms to a printing station or a laser printer, there is no significant pad lean. That is, the stack of forms retains a relatively square, rectangular or cube shaped as opposed to one having a sloped configuration, a high end and a low end, due to differential thicknesses between the two portions of the construction.

Abstract: The construction of the present invention is suitable for use as a document carrier and is particularly adapted for the transporting of negotiable instruments such as checks and other items that are used to transfer funds, credits or the like through automated processing equipment such as readers, scanners, copiers and the like. The assembly of the present invention includes an internal pocket that is created through the use of a pair of translucent sheets affixed about an opening created in a standard format sheet, such as a sheet having a dimension of 8½? by 11?.

Abstract: The present invention is directed toward a substantially planar business communication assembly that has one or more ablated recesses or depressions which are created through the use of electromagnetic radiation. The assembly preferably includes first and second portions that are joined to one another to form a composite construction. The business form is typically provided with an ablated depression in one of the two portions. The depression has a depth that is sufficient such that when a removable element is placed within the depression the surface of the removable element is substantially planar with the surface of at least one of the surfaces of the portions used to make up the assembly.

Abstract: The operating speed and dynamic input range of a digital FIR filter are markedly improved by encoding the signal by powers of two and using the thus encoded signal to shift (rather than multiply) the coefficient at each tap of the filter. A multiplexed shifter for simultaneously shifting all digits of the coefficient is also disclosed.

Abstract: A vacuum dewar for infrared detectors is disclosed, in which unitary Kovar leads are used to reduce heat load and improve reliability and ruggedness. The Kovar leads are encapsulated in the glass walls of the hollow stem which carries the sensor array and supplies cryogenic fluid for cooling the array. The Kovar leads extend throughout the entire length of the stem to form both the electrical feed-through and the contact points at each end of the stem for the attachment of wire leads or cables, and to form a reinforcing structure for the stem. A fabrication method is also disclosed, in which a unitary Kovar leadframe is held under tension while two concentric glass tubes, between which the leadframe is vacuum-sandwiched, are fused together to form a stem encapsulating continuous Kovar leads throughout its length, while preventing excessive oxidation of the Kovar leads.