Abstract: There is disclosed herein a method of applying an active electronic countermeasure (ECM) False Target technique against MTI staggered pulse threat radar. This is accomplished by radar circuits which digitally transfer false target arrays grouped about low pulse repetition frequency (PRF) pulses to high PRF pulses, when they are present. The circuits of the invention then phase shift each transferred array with respect to the fundamental system clock rate to achieve proper alignment.

Abstract: D.C. reconstruction of sampled CCD output signals is achieved by subtracting the output current pulses of two CCDs (or subtracting parallel outputs of the same CCD) with a differencing circuit containing two biasing current mirrors, a current sink device and an output capacitor. The two current mirrors are used with each biasing the output of a complementary CCD to positive and acting to mirror the CCD output current. A third current mirror converts the output of one of the CCDs into a current sink. An output capacitor performs subtracting by converting all outputs to voltage and combining the positive biased output of one CCD with the current said output of the second CCD.

Abstract: A circuit consisting of five cascaded binary coded decimal, UP-DOWN circuits with associated gates, a first input causes the counters to count up, at a 10 Mhz rate until any second input, which latches into memory the accumulated time in the counters, and causes the counters to count down at 5 Mhz rate, when the counters reach zero an output pulse, suitable for triggering photo flash strobes is generated.

Abstract: A junction field effect transistor is fabricated in crystalline silicon by using oppositely doped polysilicon as the gate (POSFET). The depletion region of the pn (or np) junction formed at the polysilicon/silicon interface is used as the gate electrode to modulate the current path through the silicon channel from source to drain, the source and drain contacts may either be conventional metal or polysilicon heavily doped of the same conductivity type as the single crystal silicon substrate.

Abstract: A circuit injects the signal from a stable localized oscillator past a pin diode switch through a first circulator to a waveguide, a second circuit injects a noise signal from a generating diode through a second circulator to the first circulator to the waveguide, a switching system causes the diodes to function in a coordinated manner.

Abstract: Microwave integrated circuits are enclosed in metal boxes. As more functions are added to circuits RF moding increases. One method of minimizing RF moding is to place a post in the box. This invention broadens the band of frequencies controlled by the post method by attaching a lossy RF absorbing pellet to the end of the mode suppression post.

Abstract: An automatic eddy current probe is revolved in a hole to be inspected, the output of the probe is divided to provide two signals to a recorder, a filtered signal will indicate the presence or absence of a flaw, a non filtered signal indicates probe position, this is particularly valuable when scanning through several structural layers.

Abstract: An input signal having a frequency is supplied as input to an exclusive `OR` -gate, the signal is sent to a register selected for the number of times the input signal is to be divided, output from the register is sent to an `AND` gate, output from this gate is fed back to the `OR` gate which, after the selected count, inverts the signal to the register resetting the register. Output of the register is an odd function of the input signal.

Abstract: An electrical feedthrough system for pressurized containers comprising a `T` shaped flexible member adapted to pass through an opening in a container and an epoxy used as a secondary seal and support. A conductor passes through the `T` shaped member which maintains a seal around the conductor. Electrical connections are made to terminals at either end of the conductor.