Abstract: A satellite navigation method determined the position of the receiver (1) by determining the signal travel time between the satellites (3, 4) and the receiver (1). Either the times of reception by the receiver (1) of the signals from the satellites are determined, both by means of an accurate time reference, in the receiver (1), and based on the signals from the satellites, then compared with each other, or at least two position solutions are determined based on the reception times, by the receiver (1) of signals from the satellites, determined by means of an accurate time reference of the receiver (1) and of at least one signal from the different satellites respectively, then compared with each other.

Abstract: An apparatus for setting the time fuse of a projectile comprising a receiving coil arranged on the axis of the projectile and a transmitting coil device with said coil device comprising ferrite elements extending parallel to the axis of the projectile over a circular-shaped feeding segment. The ferrite elements are enclosed by a flat-strip winding with said flat-strip winding extending substantially parallel to the feeding path of the projectile.

Abstract: A film writer and viewer system operable to reduce the exposure requirements of the writer and thereby extend its life by providing a pre-exposure lamp to increase the density of the film to a first value and by providing an image enhancer on the output of a video camera viewing the film to increase the contrast between the information on the film and the background for subsequent viewing.

Abstract: Electronic detector-array synthesis techniques provide fast, precise and accurate digital control of electronic zoom for electro-optical scanning systems. Exponentially-arrayed detector elements with binary-tree size-synthesis and size-interpolation, coupled with logarithmic size-control, offer optimum implementation efficiencies (hardware minimization). Alternative implementations offer different tradeoffs.

Abstract: In a laser block (10) spokes (26,28,30) and a hub (34) are mechanically worked out resulting in a monolithic integration of a dither device into the laser block.

Abstract: A sensor and control module have a housing with an internally mounted printed circuit board which supports a sensing element located in an outwardly projecting hollow portion formed at the lower part of the housing. The projecting portion is prism-shaped and includes air intake slots at its bottom side to enable external air to reach the element. The upper side of the projecting portion which is adjacent to control elements on the module is sealed. The housing is provided with an internal air passage adjacent to the printed circuit board between the air intake slots and air exit slots at a top side of the housing spaced from the control elements. In one embodiment, the module is a thermostat, and the sensing element is a temperature responsive resistor used to sense air temperature.

Abstract: A ring laser gyro having a triangular-shaped block design (10) includes a cathode (24,26) on each side leg of the triangular-shaped block and one anode (28) on the base leg of the triangular-shaped block. Furthermore, the anode (28) is connected via connecting bores (36,38) to gas reaming bores (30,32) in the corner points of the block in order to pass away ions and electrons of the plasma from mirrors (18,20) arranged in the corner points of the block.

Abstract: A ring laser gyro including two partial gas discharge paths in which by an electrode arrangement an opposite gas discharge is ignited. Outside of the discharge path between the electrodes (24,26) connected to the ignition voltage ion traps (40,42) are provided in order to prevent a gas discharge between those electrodes (FIG. 1).

Abstract: A transmitting/receiving circuit for an acoustic transducer (W1, W2) wherein the transmitting transducer (W1) is sequentially controlled by different modulated carrier frequencies (f1, f2), where the control is first matched to the inherent frequency (f1) of the transducer (W1) and afterwards the control of the transducer (W1) is by a frequency (f2) outside of the inherent frequency. During a signal reception by the receiving transducer (W2), a lock-out of a phase-locking circuit (PLL) is detected, where with an object to be measured is in a near range an active lock-out due to the frequency shift of the reception signal outside a frequency bandwidth of the phase-locking circuit is detected, and where with an object to be measured is in a far range, a passive lock-out is detected due to the fact that the reception signal amplitude falls below a noise level.

Abstract: A method for operating a transmitting/receiving circuit for ultrasonic signals includes the steps of producing a carrier frequency by a voltage-controlled oscillator having an output frequency controlled in accordance with a temperature dependency of an inherent frequency of the transducer, modulating the carrier frequency, applying the modulated carrier frequency in a transmitting mode to energize an ultrasonic transducer to produce ultrasonic transmission signals, switching from the transmitting mode to a receiving mode, applying output signals from the transducer representative of received ultrasonic signals to a phase-locked-loop circuit using the voltage-controlled oscillator whereby the phase-lock-loop circuit is automatically matched to a frequency of the received signals.

Abstract: A running time display for a projectile time fuze uses a digital display visible through a transparent window in a nose of the projectile. The fuze running time can be programmed either electrically by a receiving coil within the nose or manually by a time setting ring on the surface of the nose. To facilitate a running time display during adverse visibility conditions, the display may comprise LED elements with the display elements being intermittently energized to reduce electrical power consumption from a battery powering the time fuze.

Abstract: For passive range metering of moving vehicles a receiver is used having two detectors spaced apart and directed to the path of the vehicle which moves with constant speed and the length of which is known. The receiver measures the pass-through time of the image of the vehicle through the first detector and furthermore measures the traveling time of the image of the vehicle from one detector to the other. The distance E can be calculated by equation ##EQU1## wherein f is the focal distance of the receiver optics, Q.sub.t is the quotient of the measured time values, l is the length of the vehicle.