Abstract: In accordance with the present invention, there are provided apparatus and methods useful for efficiently subjecting photosensitive materials to a relatively low energy pre-exposure using the electromagnetic energy during the non-imaging portion of the exposure process (i.e., a backscan beam exposure) prior to subjecting such materials to the main imaging exposure (i.e., an imagewise exposure). In a further aspect of the present invention, there are provided combinations and improvements useful for the enhanced imagewise exposure of photosensitive materials. In additional aspects of the present invention, there are provided methods of enhancing the imagewise exposure of photosensitive materials, imagewise exposed photosensitive material made according to such methods, methods for enhancing sensitivity of a photosensitive material for imagewise exposure, and photosensitive materials having enhanced sensitivity for imagewise exposure made according to these methods.

Abstract: An automatic gain control for a digital mobile telephone receiver includes digital-to-analog converters for the I and Q components of an input Gaussian minimum shift-keying signal. The system computes values corresponding to the greater of the two samples of a pair less a fraction of the lesser of the two samples. An average of this value is computed for a multiplicity of symbols and the average is compared with a threshold. If the average is less than the threshold, a gain control value is incremented. If the average exceeds the threshold, alteration in the gain value is inhibited.

Abstract: The invention relates to compounds of the formula (I) ##STR1## and pharmaceutically acceptable salts thereof, wherein Ar, Z and Het are as defined herein. The compounds of formula (I) possess activity as antifungal agents. The invention also relates to pharmaceutical compositions containing said compounds of formula (I) and to methods of treating fungal infections by administering said compounds of formula (I).

Abstract: The photolithography tool of the present invention in its simplest embodiment includes an afocal lens system and a three-dimensional master or mask. The three-dimensional mask is located within the object space of the afocal lens system and is imaged onto a three-dimensional circuit carrier or substrate located within the imaging space of the afocal lens system. By using an afocal lens, with which persons skilled in instrumental optics are familiar, a system can be designed for which the object space is identical to the imaging space for unity magnification. As a result, a mask can be used in which the surface contour and pattern to be imaged is identical to the desired substrate surface and pattern, thereby simplifying mask design.

Abstract: A key handling circuit for a switching matrix having row and column conductors includes bidirectional drives for the row conductors and the column conductors. The row drive and the column drive are in a low conductive condition except when a relevant key switch is activated. The row drive provides a current input for the column drive in one phase of operation and the column drive provides a current input for a row drive in a second phase of operation.

Abstract: A hardware timing system for a cellular telephone comprises a master counter and a slave counter. The slave counter controls timing window generators in synchronism with the time frame of the local base station. The phases of timing frames of other base stations are monitored using the master counter.

Abstract: A method and apparatus for monitoring the density of a flowing fluid and controlling the flow thereof. The apparatus comprises at least one vertical tube, having an inlet at the bottom and an outlet at the top for establishing a fluid flow through the tube. A movable member, having a weight to volume ratio substantially equal to the density of the fluid, is disposed to move freely in the tube between the inlet and outlet, and adapted to close either the inlet or outlet when the density deviates substantially from said ratio. Closing of the inlet or outlet is used to stop the fluid flow.