Abstract: A wide band monopulse antenna includes a plurality of contiguous square quad-ridged waveguides arranged in a geometric array. Proper orientation of the array permits connection to circuitry to permit use of the individual waveguides for development of azimuth, elevation and sum pattern signals. Further, orientation of concentric arrays permits extension of the frequency band.

Abstract: A TV monitor includes an antenna coupler capable of selectively coupling the TV receiver being monitored to an antenna or an r.f. oscillator. The oscillator is selectively operated to impose an r.f. signal onto the antenna input of the receiver between successive horizontal blanking periods on an active video line. One probe, connected to the horizontal retrace circuit of the receiver monitors the receiver for an "on " or "off" condition, while another probe, connected to the kinescope circuits of the receiver detects the channel to which the receiver is tuned. By successively stepping the r.f. oscillator through successive frequencies within the bandwidth of individual channels, and by monitoring the kinescope probe for that frequency which compares to that generated, channel identification may be determined.

Abstract: A TV monitor includes an antenna coupler capable of selectively coupling the TV receiver being monitored to an antenna or an r.f. oscillator. The oscillator is selectively operated to impose an r.f. signal onto the antenna input of the receiver between successive horizontal blanking periods on an active video line. One probe, connected to the horizontal retrace circuit of the receiver monitors the receiver for an "on" or "off" condition. A second probe, connected to the kinescope circuits of the receiver, detects the channel to which the receiver is tuned. A third probe, connected to the vertical retrace circuitry, detects the vertical retrace signal to determine when the r.f. signal is to be imposed onto the receiver's antenna input. By successively stepping the r.f. oscillator through successive frequencies within the bandwidth of individual channels, and by monitoring the kinescope probe for that frequency which compares to that generated, channel identification may be determined.

Abstract: A monitoring system for monitoring individual modules includes a central station and a plurality of remote modules connected to said central station by a data channel. Each remote module includes a switch responsive to a fault condition for connecting a passive circuit to said data channel. The central station supplies a monitor signal to which the passive circuit is responsive to supply a fault signal. The central station includes a monitor responsive to the fault signal for impressing an interrogation signal onto the data channel to which the passive circuit is responsive to supply a coded signal indicative of the particular module responding to the fault condition.

Abstract: A circuit board is provided with a plurality of groups of connectors, so disposed and arranged in respect to each other that each group is capable of receiving a chip carrier. A fluid conduit, carrying a coolant, extends through each group so that when the contacts of a chip carrier are assembled to a group of connectors, a circuit chip, having a heat dissipating bar, is in close contact with the conduit. Conductors on each chip make electrical contact to the contacts on the chip carrier. A clip fastener is fastened to the carrier and includes bias means to bias the chip so that electrical connection is established between the chip contacts and the carrier contacts and thermal connection is established between the heat dissipating bar and the conduit.

Abstract: A microcode program sequencer includes first and second registers (herein designated the Q and P registers), each connected to a computer memory to receive addresses therefrom. Control means is provided for each register such that the P register will provide output addresses to a microcode memory, whereas the Q register(s) provide output addresses to the P register. By properly operating the control means, incrementing of addresses from the P register can be accomplished, as well as address jumps and returns, using the Q register. Further, the contents of the Q register may also be incremented in synchronism with the P register, as desired. One feature of the invention resides in a conditional latch circuit which may be selectively operated as a latch or as an OR gate.

Abstract: A conditional latch circuit is selectively operable as a latch or as an OR gate. The circuit comprises an OR gate having at least three inputs, each connected to the output of separate ones of three AND gates. A fourth AND gate has an inverted output connected to an input of two AND gates and a non-inverted output connected to an input of the third AND gate. The output of the OR gate is connected to a second input of the third AND gate. With one input of the fourth AND gate connected to a binary clock source, the circuit will operate as a latch to store binary signals received at the second input of the first and second AND gates when the second input of the fourth AND gate is connected to binary one. When the second input of the fourth AND gate is connected to a binary zero, the circuit will operate as an OR circuit.

Abstract: A phase locked circuit according to the present invention includes means for multiplying a signal to be phase locked by an integer N. A resettable divide counter divides the multiplied signal by N for return to a phase comparator. Reset means operates the resettable counter upon command so that when the input signal to the phase locking circuit is changed (i.e., between two signals each having approximately the same frequency but which may be out of phase), the reset means is operated to reset the divide counter so that the maximum phase error if the signal delivered to the phase comparator is .pi./N radians.

Abstract: Apparatus is provided to determine the relative shift of position of a vehicle carrying a transmitter transmitting at a predetermined frequency. A plurality of receivers are positioned to receive the signal transmitted, and each includes a counter for advancing a count representative of the number of cycles of signal received. A computer receives the counts from the receiver to determine the relative shift of vehicle position. Preferably, a reference transmitter is provided for transmitting a reference signal of predetermined frequency, which, when processed with the signal received from the vehicle, provides a difference or "beat" frequency which provides the basis for cycle counting at a reduced rate.

Abstract: A plasma display panel according to this disclosure comprises a plurality of display elements having a dielectric surface upon which charges may accumulate adjacent a plurality of conductors. The conductors are supported by a single substrate in substantially coplanar arrangement so that charge accumulation occurs at different locations on the dielectric. Specifically disclosed is a serial shift display wherein data to be displayed may be inputed at one edge of the panel for display and serially shifted across the panel by selective application of sustaining signals to selected electrodes. Data may be read out of this panel from the opposite end for recirculation or other purposes.

Abstract: A roller platen imprinter is provided with means for selectively raising and lowering the roller platen for the imprinting and return strokes. The said means includes regions on the platen shaft of different sectional dimensions, together with cam means for axially shifting the support position of the shaft between the portion having the large sectional dimension and the portion having the smaller sectional dimension to selectively raise and lower the platen.

Abstract: Apparatus is provided for forming an absolute address for accessing the memory of a computer in which a plurality of associative registers each containing an associative word are arranged in sequential order, each associative word having an absolute page identifier and a virtual page identifier. Means is provided for comparing the virtual page identifier of the associative words with a virtual page identifier of a job program, and means is provided for sequentially shifting the associative words so that the associative word containing the virtual page identifier which corresponds to the virtual page identifier of the job program is placed in the highest ordered associative register.