Abstract: The system for a collapsible direction finding antenna. The antenna comprising a rigid central portion and a plurality of foldable arms. The antenna is aerial/kite lifted once launched from a tube to provide increased line of sight above a surface. The antennas being launchable from a UUV, a user in the field, and the like. The antenna being a full azimuth direction finding antenna. In some cases, operating at a wide matched frequency of 1 to 6 GHz.

Abstract: The system and method of retractable solar arrays for underwater vehicles. In some cases, the retractable solar arrays for underwater vehicles contain anti-biofouling mechanisms. The retractable solar arrays may extend in a linear or a fan-like manner. In some cases, the solar array may be wrapped around the outside of the underwater vehicle or within a cylindrical housing. In some cases the solar array is a single flexible member with a series of connected panels.

Abstract: A system and method for protecting boot and recovery area of a flash memory in order to meet GMR requirements in radio system is disclosed. When the Core Engine Modem is installed in the factory test equipment, LOCK signal on the PoP module is logic high. At this time, the flash will be unlocked, and the boot and recovery code is written. The boot and recovery sectors will then be locked and the user area of the flash is left unlocked. When installed in the GLS DICE-T, LOCK signal on the PoP module is logic low. At this time, the flash device will ignore block lock commands, which prevent the unlocking of the protected sectors. The write enable signal from the GVA can now be utilized to enable writing to the user area of the flash despite of protecting boot and recovery areas.

Abstract: In an embodiment, a coordinate determiner is operable to identify at least first and second surfaces that each approximately intersect an object, and to determine at least two approximate coordinates of the object from the first and second surfaces, where at least one of the surfaces is nonplanar. For example, if the coordinate determiner is disposed on a fighter jet having at least to short-baseline-interferometers (SBIs), then two surfaces may be the surfaces of two cones having two of the SBIs as respective vertices, the object may be a close-in target, and the coordinate determiner may determine the azimuth and elevation of the target from the cone surfaces. Furthermore, the coordinate determiner or another computation unit onboard the jet may determine the slant range of the target from the elevation and the altitude of the jet.

Abstract: A dual path ring oscillator core includes three dual path inverters, each having a first inverter and a second inverter. Within the first inverter, one transistor is coupled to a first output of a previous dual path inverter, while another transistor is coupled to a second output of the previous dual path inverter. Within the second inverter, one transistor is coupled to the second output of the previous dual path inverter, while another transistor is coupled to the previous dual path inverter's first output. A first and a final dual path inverter are analogously coupled. A transient pulse will not propagate through successive dual path inverter stages. A dual to single path converter is coupled to receive signals output by the final dual path inverter. If a transient signal appears at a dual to single path converter input, stray output node capacitance maintains a correct output signal value.