Abstract: A base station (10) for mobile radio telecommunications systems comprises a radio frame set (11), an amplifier frame (12) and an antenna interface frame (13) connected to transmit and receive antennas (22 and 23). The radio frame set (11) comprises a radio channel frame (14) including a radio control complex (31), a plurality of radio channel units (54) and a plurality of digital interface circuits (57) for interconnecting the base station to a remote mobile telephone switching office. A time division multiplexed bus (53), connected to the radio control complex (31), the radio channel units (54) and the interface circuits (57), is used for selectively connecting, under the control of the radio control complex (31), any radio channel unit (54) to any digital interface circuit (57). Such a radio channel arrangement is capable of handling analog, as well as, digital radio channel units while exhibiting greater capacity, easier maintenance and upgrade, and substantially increased flexibility (FIG. 3).

Abstract: A technique for moving and presenting an article to a work station is described. A plurality of articles, loaded onto a conveyor system, are moved so that a leading article is positioned at a pick-up and elevating station (46). A separating mechanism (44) is activated to lift (via 90, 91) from the conveyor system (42) all of the articles which trail the leading article, and to move them a predetermined distance behind and away from the elevating station (46). Next, the leading article is elevated above the plane of the conveyor system in order to facilitate its removal therefrom (FIG. 3).

Abstract: A component module (15, 70), adapted for piggyback mounting on an IC Dip (51,81), preferably incorporates a decoupling capacitor (18, 44, 74), with opposite end electrodes (23, 24), encapsulated within a molded housing (21, 72) of preferably parallelepiped configuration. The electrodes are uniquely connected to only two of preferably four rectangularly shaped terminals (26-29, 76-79) that project downwardly from different corners of the housing. The terminals, as well as an optional heat sink (61) are preferably formed out of a strip stock carrier (33). The two capacitor-connected terminals (27, 29 and 77, 79) are uniquely diagonally disposed and spaced, for a decoupling application, so as to respectively engage the battery and ground leads of a standard pin-out DIP (51, 81). The other two diagonally disposed component module terminals (26, 28 or 76, 78) are electrically isolated from the capacitor, being employed only to facilitate the mounting of the module on an associated DIP.

Abstract: A method and an apparatus for continuously patterning a photosensitive tape or foil wherein a master pattern and the tape or foil are synchronously coupled. An optical system comprising a plano-convex lens, a concave spherical mirror, and a pair of right-angle prisms is optically-coupled between the master pattern and the tape or foil for projecting an image of the pattern onto the tape. The optical system is such that the movement of the image is in the same direction as the movement of the tape. The apparatus is such that patterning can take place through projecting an image on one or on both sides of the tape. Alternatively, projecting an image on one side of the tape and contact printing of a pattern on the other side of the tape is also made possible by the apparatus.

Abstract: An improved low-noise microwave amplifier comprises a circuit arrangement coupled in parallel with a GaAs FET amplifying stage for reducing transmission loss in case of dc power failure or amplifying stage failures. The circuit arrangement comprises two microwave circulators and a microwave isolator connected therebetween.

Abstract: An improved Range Extender with Gain (REG) comprises a floating loop current detector, a new dial pulse reshaper and a new control logic circuit. The loop current detector is powered by means of a floating power supply which renders the detector insensitive to spurious common-mode subscriber loop currents. The dial pulse reshaper comprises logic gates with two feedback paths for regenerating minimum make and break periods. The control logic circuit for controlling the relays in the REG is an asynchronous logic circuit particularly designed to avoid conventional differentiation circuits and timing problems associated with Automatic Number Identification.

Abstract: A method and an apparatus for cutting insulating material (e.g., quartz) having a conductive layer on the surface thereof includes the use of a thin copper wire having diamond particles imbedded therein. The wire is moved in a direction perpendicular to the surface of the material. A source of potential is coupled between the wire and the layer, and a liquid solution is supplied between the wire and the conductive layer resulting in electro-erosion of portions of the layer proximate to the wire. A tension sensor detects wire displacements at the quartz cutting site and controls a wire-to-layer gap detector which in turn interrupts the displacement of the insulating material.