Abstract:
An integrated heat exchanger and power delivery system for high powered electronic modules is disclosed. In one embodiment, the system includes a coolant manifold. The system further includes a heat exchanger and power delivery module. The heat exchanger and power delivery module comprises a plurality of heat exchanger and power delivery elements that are coupled to the coolant manifold. The system furthermore includes a high powered electronic module, wherein the high powered module comprises an array of sub-modules. The array of sub-modules is disposed on the plurality of heat exchanger and power delivery elements. The plurality of heat exchanger and power delivery elements are configured to substantially simultaneously deliver power and extract heat away from the sub-modules.
Abstract:
An optical automatic attitude measurement device for a lightweight portable optical system is disclosed. In one embodiment, a first optical device is configured to provide an attitude beam. A second optical device mechanically coupled to the first optical device to a lose tolerance. The second optical device is configured to provide a reference beam and to receive the attitude beam from the first optical device. The second optical device is further configured to obtain an attitude measurement by computing a differential measurement between the reference beam and the attitude beam in x and y planes at room temperature.
Abstract:
A plurality of modules each including at least a pair of series connected power MOSFETs are configured between a plurality of DC voltage sources, and a plurality output terminals for connection to respective loads, are controlled for selectively applying power to the loads via time delay switching incorporating forward biased intrinsic diodes of the MOSFETs in a given current path during initial application of power to a load, whereby a predetermined period of time after turning on one of the series connected MOSFETs, the associated other MOSFET is turned on to shunt its intrinsic diode for reducing the resistance in the current path to maximize current flow. The configuration of the plurality of power MOSFETs is also controlled for selectively providing bi-directional current flow between said plurality of DC voltage sources.
Abstract:
A system and method of determining a pointing vector using two GPS antennas and a single GPS receiver is disclosed. Two stationary GPS antennas, with a separation preferably less than half of a wavelength {∼100mm) may use a single receiver to determine the pointing vector of the system. Incorporation of a three axis angular rate measurement allows pointing determination during system rotation. Incorporation of three axis gyroscope system allows pointing determination while m motion. The system provides the ability to sense multipath and jamming. Also the system can potentially eliminate the impact and certainly alert the user that the measurement may not be reliable.
Abstract:
A protective ensemble hydration monitor configured to be disposed within a face mask of a protective ensemble is disclosed. In one embodiment, the protective ensemble hydration monitor includes a humidity sensor to detect the users breath within the face mask and output a breath signal based on the detected users breath. Further, the protective ensemble hydration monitor includes a microprocessor coupled to the humidity sensor to receive the breath signal and output a control signal based on a pre-determined humidity threshold value. Furthermore, the protective ensemble hydration monitor includes a vibrator configured to provide a tactile feedback to the user upon receiving the control signal from the microprocessor.
Abstract:
An ergonomic remote control glove for controlling an electronic device in military applications is disclosed. In one embodiment, the ergonomic remote control glove includes at least one motion sensor and a processor communicatively coupled to the at least one motion sensor. Further, the ergonomic remote control glove includes a communication link to connect to the electronic device. The communication link is communicatively coupled to the processor. Furthermore, the ergonomic remote control glove includes a wearable ergonomic glove configured to include the at least one motion sensor, the processor and the communication link. The processor is configured to send one or more control signals to the electronic device via the communication link upon detecting finger motions and/or hand gestures by the motion sensor.
Abstract:
An active display based targeting and weapon siting system for providing focusing and targeting data is disclosed. In one embodiment, the active display based targeting and weapon siting system includes an angled optic device configured to allow a user's line of sight to pass through the angled optic device. Further, the active display based targeting and weapon siting system includes a display module configured to provide images including video images, multi-color images and/or wide boresight adjustment and to direct the images into the user's line of sight through the angled optic device.
Abstract:
Techniques and structure are disclosed for implementing a spatial walk-off compensation mechanism having an integral tilt function. In some embodiments, the mechanism may comprise a tilt-ball mount having an integrated walk-off compensation medium. In some embodiments, the mechanism may be configured to receive an output beam from a non-linear converter (e.g., optical parametric oscillator or OPO) implementing a non-linear medium comprising a bi-refringent material (e.g., zinc germanium phosphide, or ZnGeP 2 ; cadmium silicon phosphide, or CdSiP 2 ). In some embodiments, the walk-off compensation medium may comprise the same material and/or have the same cut as the non-linear medium. In some embodiments, the mechanism may be manually and/or mechanically adjusted/repositioned to reduce beam walk-off and/or to more precisely direct the beam. In some embodiments, the mechanism may be implemented in mid-infrared (MIR) applications. Numerous configurations and variations will be apparent in light of this disclosure.
Abstract:
An asymmetric slotted waveguide and method for fabricating the same. The slotted waveguide is constructed in si!icon-on-insuiator using a Complementary metal-oxide-semiconductor (CMOS) process. One or more wafers can be coated with a photo resist material using a photolithographic process in order to thereby bake the wafers via a post apply bake (PAB) process. An anti-reflective coating (TARC) can be further applied on the wafers and the wafers can be exposed on a scanner for the illumination conditions. After a post exposure bake (FEB), the wafers can be developed in a developer using a puddle develop process. Finally, the printed wafers can be processed using a shrink process to reduce the critical dimension (CD) of the slot and thereby achieve an enhanced asymmetric slotted waveguide that is capable of guiding the optical radiation in a wide range of optical modulation applications using an electro-optic polymer cladding.
Abstract:
What is provided is a system for maintaining acceptable error rates in a MUD- enabled ad-hoc network. In this system the power spread associated with all of the nodes is maintained within the dynamic range of the system, for instance 30 dB. Also, the signal-to-noise ratio at an intended receiver is maintained above a predetermined minimum SNR, for instance above 5 dB. If the dynamic range rule is not met, then the power at the transmitting node is attenuated such that the dynamic range rule is met, checking to see that the minimum SNR rule is also met, or the transmission from this node is pulled. If there is no power control solution, then power aware scheduling is applied. Alternatively, only power aware scheduling is Utilized.