Abstract: An apparatus and method for enhancing the signal-to-noise ratio of an input signal which divides the input signal into a plurality of divided signals of equal power, introduces a delay into a corresponding one of the plurality of divided signals, mixes together pairs of the plurality of delayed divided signals, and sums the mixed signals. The apparatus and method of the present invention may be employed in a signal detector to improve the sensitivity of the signal detector.

Abstract: An electroluminescent display includes a transparent electrode (4) and a metal assist structure (6) formed over a portion of the transparent electrode (6) such that the metal assist structure (6) is in electrical contact with the transparent electrode (4). The metal assist structure (6) includes a first refractory metal layer (10), a primary conductor layer (12) formed on the first refractory metal layer (10), and a second refractory metal layer (14) formed on the primary conductor layer (12). The first and second refractory metal layers (10, 14) are capable of protecting the primary conductor layer (12) from oxidation when the electroluminescent display is annealed to activate a phosphor layer (18). In an alternate embodiment, an electroluminescent display includes a substrate (2) and a metal electrode (22) formed on the substrate (2).

Abstract: Apparatus for separating individual flat articles of random thickness from one end of a stack of such articles and delivering separated articles, on command, to a transport device. Included in the apparatus is a pick-off device having a friction surface drivable in a direction of article delivery and oriented to engage an exposed surface on one article at the one end of the stack and advance the one article in the direction of delivery, an anti-doubling device for restricting advancing movement of other articles by the pick-off device, a delivery device having a drivable friction nip for pulling a separated article from the pick-off device in the direction of article delivery, and a control system for operating the pick-off device and the delivery device to position each separated article in the friction nip in readiness for delivery, on command, to the transport device.