Abstract: Systems and methods are provided for advanced persistent threat detection on a network. The method includes capturing data packets from a network and performing layered session decoding on the captured packets. Metadata is extracted from the decoded packets and is stored for analysis. Analysis of the metadata is used to detect advanced persistent threats on the network. The system includes a network and a processor coupled to the network. The processor is configured to capture data packets from the network and perform layered session decoding on the captured packets. Metadata is extracted by the processor and stored in a memory coupled to the processor. The metadata may then be analyzed to detect advanced persistent threats on the network.

Abstract: Systems and methods are provided to automatically determine a position of a reticle of a rifle scope or other telescope that provides a visual image to an eye of a viewer. A near-infrared or other illuminating light is generated and applied to illuminate the reticle of the telescope. The illuminated image of the reticle is optically transmitted to a camera or other detector that captures an image of the reticle. Processing electronics then automatically determine the position of the reticle based upon the position of the illuminated image of the reticle within the captured image. Appropriate feedback about the determined position of the reticle or any other information may be displayed in the visual image provided by the telescope.

Abstract: The invention comprises methods for filling holes in printed wiring boards and printed wiring boards produced by these methods. The methods involve plating metal conductors inside the holes of the printed wiring boards while protecting the conducting surfaces of the printed wiring boards from being plated using photoresist film. The side surfaces of a printed wiring board are covered with photoresist. The photoresist is exposed to developing light, except the photoresist covering the holes on one side of the board is masked to prevent exposure of the holes to the developing light. The undeveloped photoresist covering the holes is removed. The board is subjected to a plating process, which deposits conductive materials in the holes, but the photoresist on the conducting surfaces of the board prevents conductive materials to be plated on the surfaces of the board.

Abstract: An optical sensing system includes a transmitter assembly for generating a generated signal having a frequency in an optical wavelength. An optical sensing fiber is coupled to the transmitter assembly for receiving the generated signal and producing a reflected signal from backscattering of the generated signal. The system also includes a receiver assembly coupled to the optical sensing fiber for receiving the reflected signal. The system further includes a controller in communication with the receiver assembly for determining environmental effects imposed on the optical sensing fiber based on characteristics of the reflected signal.

Abstract: A system and method for rotating a source image by a first non-zero angle is provided. The method includes: defining a template for the source image, the template representing a rotation of the source image about an axis of the source image by second angle, where the second angle is the negative of the first non-zero angle; determining overlap between the template and the source image; separating the template into a plurality of strips covering at least the area of overlap; and for each strip: indentifying an initial pixel in the source image within the strip and storing the image data of the initial pixel; storing the image data of all remaining pixels within both the strip and the overlap in a database format in which the all remaining pixels is defined by a Y and X offset from the initial pixel.

Abstract: The present invention relates to an apparatus and method for the encryption and decryption of optically transmitted data, and more particularly to the encryption and decryption of optical data transmitted and received using only optical components. Because only optical components are used, the encryption and decryption is independent of the data rate of the optical signal. The apparatus may include an encryption device that operates by receiving and combining both an unencrypted optical signal as well as a delayed optical signal that is based on the unencrypted optical signal. An optical delay may be configured in a number of different ways and may be used for delaying the unencrypted optical signal. The apparatus may further include a decryption device that receives and combines an encrypted optical signal as well as a delayed optical signal that is based on the encrypted optical signal.

Abstract: A method for aligning a plurality of sub-apertures of a multiple-aperture imaging system including, but not limited to, identifying one sub-aperture to serve as a reference sub-aperture, actuating the reference sub-aperture in a series of piston steps of a known amount, collecting data relating to each image of a plurality of images of a point object, each image corresponding to a respective piston step, compiling the data into a three-dimensional data cube, detecting a plurality of fringes positioned within the three-dimensional data cube, determining the relative location of each sub-aperture of the plurality of sub-apertures based on a location of each fringe of the plurality of fringes within the three-dimensional data cube, and actuating a piston associated with at least one sub-aperture based, at least in part, on the relative location to move the at least one sub-aperture into alignment with another sub-aperture and repeating with each remaining sub-aperture until all sub-apertures are at substantially

Abstract: A telemetry system is described in which a plurality of channels are coupled to a bus. A control subsystem controls the channels so that one of the channels presents to the bus during its designated time period a channel characteristic. The control subsystem interrogates in the analog domain each of the channels during its designated time period, and forms a signal representative of the channel characteristic. The control subsystem may combine one or more of the signals into a digital packet, and transmit the same via transceiver over a wireless network. The channels may be contained within a submersible enclosure and displaced at intervals along the bus, thereby forming an array for monitoring waterborne threats. The array may lie along an ocean floor, may be towed by a marine vehicle, or may suspended from a deployable buoy containing the control subsystem, transceiver, and a remote power source. The array may further comprise a defensive countermeasure deployable responsive to detecting a threat.

Abstract: A global positioning system (GPS) receiver that is configured to rapidly acquire GPS signals in space applications and a method for rapidly acquiring GPS signals in space applications is disclosed. In an embodiment, the GPS receiver includes, but is not limited to, a GPS signal acquisition component comprising a time domain correlation module. The GPS signal acquisition component is adapted to acquire a GPS signal by receiving data from the GPS signal and processing the data to detect the GPS signal.

Abstract: Systems and methods are provided to automatically determine a position of a reticle of a rifle scope or other telescope that provides a visual image to an eye of a viewer. A near-infrared or other illuminating light is generated and applied to illuminate the reticle of the telescope. The illuminated image of the reticle is optically transmitted to a camera or other detector that captures an image of the reticle. Processing electronics then automatically determine the position of the reticle based upon the position of the illuminated image of the reticle within the captured image. Appropriate feedback about the determined position of the reticle or any other information may be displayed in the visual image provided by the telescope.

Abstract: An interposer lead provides a connection between an integrated circuit and a circuit board. The interposer lead includes a first leg for interfacing with the circuit board. The interposer lead also includes a second leg disposed generally parallel to the first leg for interfacing with an IC electrical lead extending from the integrated circuit. A connecting portion operatively connects the first leg and the second leg. The interposer lead further includes a lip extending non-parallel from the second leg for limiting movement of the IC electrical lead on the second leg.

Abstract: A method is provided for connecting an integrated circuit to a surface of a printed wiring board. The integrated circuit includes lead contacts and leadless contact pads. A first solder paste is applied to the leadless contact pads of the integrated circuit, and preformed conductive pieces are placed on the first solder paste. The preformed conductive pieces are slugs that have, for example, a cylindrical shape or a rectangular cross-section. The preformed conductive pieces are heated and brought into electrical contact with the leadless contact pads. The lead contacts are formed into gull wings. The bases of the preformed conductive pieces are generally aligned in a plane, and the bases of the gull wings are substantially coplanar with the plane such that they collectively generally define a contact plane.

Abstract: A system and method for rotating a source image by a first non-zero angle is provided. The method includes: defining a template for the source image, the template representing a rotation of the source image about an axis of the source image by second angle, where the second angle is the negative of the first non-zero angle; determining overlap between the template and the source image; separating the template into a plurality of strips covering at least the area of overlap; and for each strip: indentifying an initial pixel in the source image within the strip and storing the image data of the initial pixel; storing the image data of all remaining pixels within both the strip and the overlap in a database format in which the all remaining pixels is defined by a Y and X offset from the initial pixel.

Abstract: A method for preparing an integrated circuit for connection to a surface, the integrated circuit including lead contacts and leadless contacts, is provided. The method includes providing the integrated circuit, applying a first solder paste to the leadless contacts, forming solder balls on the applied solder paste, heating the solder balls, thereby removing at least a portion of the first solder paste and bringing the solder balls into electrical contact with the leadless contacts, the base of the solder balls being generally aligned in a plane, and bending the lead contacts into gull wings, with the base of the gull wings being substantially coplanar with the plane. The base of the gull wings and the base of the at least one of the solder balls collectively generally define a contact plane for potential future contact with the surface.

Abstract: An interferometer and method for interferometric analysis are provided. The methodology includes generating first and second light beams from a light source, interacting the first light beam with an object under inspection, forming, from light emanating from the object under inspection in response to the interacting, an image of the light source on an image sensor, projecting the second light beam on the image on the image sensor, the combination of the light emanating from the object under inspection and the second light beam forming a collective image on the image sensor, applying a Fourier transform to the collective image formed on the image sensor, thereby forming a phase image, and isolating a wavefront map of the object under inspection from within the phase image.

Abstract: A cable and corresponding method for making a cable are provided. The cable includes an outer jacket of polyethylene surrounding a plurality of conductive wires. Each one of the plurality of insulated conductive wires comprises a conductive core and an insulating layer surrounding the conductive core, the insulating layer being made of cross-linked polyethylene.

Abstract: A mounted polarizer and corresponding assembly method is provided. The mounted polarizer includes a substrate, and a polarizer with a plurality of parallel wires mounted on a supporting base. An epoxy binds the polarizer to the substrate, such that the plurality of parallel wires is mounted between the substrate and the supporting base, and the epoxy is in direct contact with the plurality of wires. The substrate, the epoxy and the supporting base all have a substantially matching refractive index. The mounted polarizer substantially transmits one polarization of light, and substantially blocks transmission of another polarization of light.

Abstract: A method for preparing an integrated circuit for connection to a surface, the integrated circuit including lead contacts and leadless contacts, is provided. The method includes providing the integrated circuit, applying a first solder paste to the leadless contacts, forming solder balls on the applied solder paste, heating the solder balls, thereby removing at least a portion of the first solder paste and bringing the solder balls into electrical contact with the leadless contacts, the base of the solder balls being generally aligned in a plane, and bending the lead contacts into gull wings, with the base of the gull wings being substantially coplanar with the plane. The base of the gull wings and the base of the at least one of the solder balls collectively generally define a contact plane for potential future contact with the surface.

Abstract: A digital demodulation method for a quadrature amplitude modulated signal uses a phase locked loop to generate a local carrier signal. The phase locked loop uses a feedback signal derived from one or more demodulated signals of interest. The loop has a filter characteristic with a stop band within the information bandwidth(s) of the information signal(s). The preferred method generates an error signal from DC components of in-phase and quadrature-phase baseband signals. DC components are preferably isolated using a low-latency, AC rejection filter.

Abstract: A system for connecting circuit boards is provided. A plurality of overlapping spaced apart circuit boards have a plurality of conductive pins passing through holes in the circuit boards. A connector includes a flexible sheet insulator and a plurality of conductive surfaces separated and supported by the flexible insulator. At least one of the conductive surfaces has a hole there through and a bent compliant lead extending there from. The hole engages one of the pins, and the complaint lead connects to one of the circuit boards.