Abstract: A paper attribute detector for use in combination with a strip chart recorder includes a paper web having a plurality of connected pages. Each of the pages has electronically scannable indicia preferably on an unrecorded side of the paper. In the preferred embodiment, the indicia are realized in bar code form and are used to encode various attributes such as page number, paper quality, paper sensitivity, and so on. Indicia scanning means are provided for detecting the page indicia as the paper web travels through the recorder. In the preferred embodiment, the scanning means includes one or more electro-optical sensors. The indicia may be aligned parallel to or transverse the travel direction of the web.

Abstract: A display resolution enhancement technique which provides a means for prioritizing and displaying overlapping images on a display based on the intensity levels of each respective image for each display element.

Abstract: A switch assembly including a base member and at least one pair of conductors provided on the base member which are to be electrically connected. An outer baffle extends over the base member and the conductors and is comprised of a conical wall having a key formed at the apex thereof and an outward flaring pad at the bottom thereof for engagement with the base member, the outer baffle including a recess beneath the key opening toward the base member. An inner baffle is dimensioned to be positioned within the outer baffle and includes a conical wall having a plug at the apex thereof and a pad formed at the bottom thereof. The plug is dimensioned to be received within the recess of the outer baffle such that the conical walls of the outer baffle and the inner baffle are symmetrical about a common axis. The pad on the inner baffle is spaced a predetermined distance above the base. A conductive element is provided on the inner baffle to electrically connect the conductors when the outer baffle collapses.