Abstract: An improved radar system and method for detecting targets is described. The system employs a sliding window range indicator which non-coherently integrates multiple contiguous range cells to reconstruct target cross sections. The invention has particular applicability to large targets.

Abstract: A method identifies a moving object by first transmitting a signal at a predetermined frequency. An unknown object reflects the signal, and the reflected signal is detected. Frequencies of the reflected signal are modulated according to motion of the unknown object. General features are extracted from the reflected signal, and the features are used by a statistical classifier to identify the unknown object.

Abstract: Disclosed is a radar system which comprises an AD conversion unit for converting an analog signal obtained from an antenna into a digital signal, a frequency analysis unit for performing a frequency analysis of the digital signal converted by the AD conversion unit, a time-frequency analysis unit for performing a time-frequency analysis of the digital signal converted by the AD conversion unit, and a target detection unit for detecting a target based on a signal of which the frequency analysis is performed by the frequency analysis unit and a signal of which the time-frequency analysis is performed by the time-frequency analysis unit.

Abstract: An improved system is provided for aiming a shotgun-based or other countermeasure system so as to be able to countermeasure incoming rockets or projectiles. In one embodiment a shotgun aimed and controlled by the subject system projects a pattern of pellets to intercept a rocket-propelled grenade or incoming projectile. The fire control system uses a CW two-tone monopulse radar to derive range and angle of arrival within 150 milliseconds, with range and angle of arrival measurements having approximately twice the accuracy of prior CW two-tone monopulse radars. The improvement derives from using all of the information in the returned radar beams and is the result of the recognition that one can use the Sum and Difference signals to assemble a two-by-two Rank One matrix that permits using singular value decomposition techniques to generate range and angle of arrival matrices in which all available information is used and in which noise is eliminated.

Abstract: In an radar apparatus according to the present invention, any change detected in the characteristic of a receiver circuit is corrected during normal operation or at the time of an initial adjustment before shipment from factory and, furthermore, any change occurring in the characteristic due to aging or temperature variations in the operating environment is corrected as needed. In the radar apparatus which includes a plurality of receiver circuit systems to correspond with a plurality of receiving antennas, channel signals ch1 and ch2 having the same characteristics are generated by the switching operation of a second switch from a received channel signal received by an antenna selected by a first switch, and the thus generated signals are input to the respective receiver circuit systems. Any change in characteristic is detected by comparing signal level and phase between the channel signals converted from analog to digital.

Abstract: Computer software for testing the performance a Joint Advanced Missile Instrumentation Time-Space-Position Information Unit (JTU). The computer software is utilized for Functional, Acceptance and Qualification test of the JTU. The software has the capability of bench test the JTU and field testing the JTU to verify and document functionality of the JTU prior to use of the JTU in an operational environment.

Abstract: Disclosed is a method and apparatus for determining the relative position of a mobile unit that moves from an initial location to a plurality of successive positions. The mobile unit receives signals from a plurality of navigation satellites and tracks the carrier phases of the signals during movement. For each of the received signals, carrier phase increments are calculated over a plurality of epochs. Anomalous carrier phase increments are determined and eliminated from further calculations. The non-eliminated carrier phase increments are then used to calculate coordinate increments for each of the time epochs. If, after elimination, the remaining number of carrier-phase increments is less than a threshold for a particular epoch, then coordinate increments for the particular epoch may be extrapolated using data from prior epochs. In various embodiments, least squares method and Kalman filtering may be used to calculate the coordinate increments.

Abstract: A system and method is provided for monitoring and possibly controlling radio frequency power levels within GNSS signal distribution networks. With respect to GNSS signal distribution networks that re-radiate the GNSS signal, limiting GNSS signals to an intended area is described.

Abstract: A system and method for controlling and storing sensitive information on a global positioning system (GPS) device are provided. The system includes a locational information module for determining location information of the device; an encryption module for encrypting the location information; a processing module for storing the encrypted location information in a storage module; and an input module for inputting a code string for decrypting the location information. Information inputted to and/or generated by the device will be encrypted on the storage module. The storage module can be in any form currently available including optical media, or various types of removable memory cards or cartridges. Furthermore, the storage module may be internal memory and the GPS device may further include a transmission module or connection, e.g., hardwire or wireless, to port the information to a computer.

Abstract: Systems and methods are disclosed for automated notification systems. A representative method, among others, can be summarized by the following steps: monitoring travel data in connection with a mobile thing (MT) that is destined to pickup or deliver an item or service at a stop location; causing initiation of a notification communication session with a personal communications device (PCD) based upon the travel data; and during the notification communication session, enabling a party associated with the PCD to change one or more tasks associated with the pickup or delivery. A representative system, among others, comprises a computer or other automated system that is programmed or designed to perform the foregoing steps.

Abstract: A multi-band, multi-port antenna includes at least one patch radiating element and at least one ring radiating element, that are operative within different frequency bands, on a common conductive layer.

Abstract: A dual-band patch antenna with a slot structure is disclosed. The dual-band patch antenna comprises a metal-work antenna including a rectangular (patch) radiator on which an L-shaped slot structure is formed; two shorting strips and vertically shorted to a conductive ground plane formed on a base board; and a feeding means inserted into the base board. When the dual-band patch antenna is operated at about 2.45 GHz and about 5.4 GHz, good radiation pattern and antenna gain are obtained for being applicable to IEEE802.11b/g/alj or Bluetooth specifications.

Abstract: An antenna module includes a substrate with at least a first antenna on one side while at least a second antenna on the other side of the substrate so that both sides of the antenna module are able to radiate signals. Therefore, the effective angular coverage of the antenna module is enlarged and the performance of the embedded wireless network device is improved.

Abstract: This invention is a miniaturized microstrip antenna, which consists of one antenna element and one feeding structure. The antenna element is the first metal pattern printed on the first dielectric layer to radiate or receive electromagnetic wave at a specific frequency band. The feeding structure is used to deliver signals to or from the antenna element. The first metal pattern consists of two sets of parallel wires, with one set perpendicular to the other. The geometrical parameters of the first metal pattern determine the specific frequency band of electromagnetic wave to be radiated or received.

Abstract: A monopole antenna is disclosed. The monopole antenna comprises a base board, a first substantially L-shaped conductor, a first ground plane, a second substantially L-shaped conductor, a second ground plane and a feeding strip, and the monopole antenna further has a plurality of evenly-distributed through holes penetrating the base board from the first substantially L-shaped conductor to the second substantially L-shaped conductor. When the monopole antenna is operated at about 2.4-2.5 GHz, good radiation patterns and antenna gain are obtained for being applicable to IEEE802.11b/g specifications.

Abstract: A system and method for an electronically scanned antenna is provided in which phase shifters are deposited en masse along with other electronically scanned antenna components on a wafer scale substrate using a thin film process. Alternative wafer scale sizes may be utilized to furnish a required antenna aperture area. Significant processing costs for radar and communication systems are saved utilizing the present invention as compared with contemporary discrete phase shifters that are individually mounted on an antenna. In an aspect, the phase shifter is made up of a base electrode, a barium strontanate titanate (BST) ferroelectric varactor and a top electrode. The BST ferroelectric material is a voltage variable dielectric, which generates a radiation phase. The radiation phase is regulated by a phase shifter control. The radiation phase generates an electromagnetic field about a radiating element and electromagnetic radio waves are radiated from the radiating element.

Abstract: An omni direction antenna comprising a substrate having a first side and a second side with a first conductor coupled to the first side of the substrate and a second conductor coupled to the second side of the substrate is provided. The first and second conductors comprise wide elements substantially aligned over narrow elements. The antenna further has a terminating element shorting the first and second conductors. A feed element is coupled to the first side wide element, the feed element comprising at least one transmission line, at least one impedance matching element, and at least one ground plane substantially aligned with the at least one transmission line.

Abstract: This document represents and describes an antenna for a wireless communication terminal with at least one essentially planar radiating element, wherein at least one section of the radiating element is folded in a waving to meandering fashion. According to the invention, the folded section of the radiating element is three-dimensionally double-folded by folding lengthwise in at least two directions arranged at an angle (W) in relation to each other (R1; R2). Such a three-dimensional antenna structure creates an antenna which, while maintaining the external dimensions of a typical planar radiating element, has a significantly lower space requirement. The antenna according to the invention is therefore especially suitable for installation in highly miniaturized devices such as mobile phones.

Abstract: There is provided an antenna device for use with a portable terminal, which can be used in different frequency bands by combining antenna characteristics. Whip antenna 1 is electrically connected to power feeder 3 through contact member 5, and resonates in a UHF band or higher when extended. Coiled antenna 2 is electrically connected to power feeder 3 through frequency filter 4 mounted on device board 10. Frequency filter 4 is set to a low impedance in a VHF band to supply electric power to coiled antenna 2. With this arrangement, external whip antenna 1 is excited in the UHF band or higher, and built-in coiled antenna 2 is mainly excited in the VHF band. The antenna device is thus capable of sending or receiving radio waves in a wide frequency band.

Abstract: A wireless device (100) includes a first circuit board (102), a second circuit board (104), and a distributed load (106) having an inductive coupling (112) and a capacitive coupling (114). The inductive coupling (112) and the capacitive coupling (114) form a parallel resonance at predefined frequencies of interest. The second circuit board (104) includes an antenna (116) for receiving and transmitting radio waves.

Abstract: A telecommunications appliance having at least one display (13) which is arranged in a housing (14), is mounted on a holder and is held such that it can be positioned flexibly, starting from an attachment point, by means of a plastically deformable metallic rod (4), and having a receiving antenna which is connected to an antenna input of the housing (14), is designed in order to reduce the complexity for connecting cables such that the metallic rod (4) is electrically connected to the antenna input and forms at least a part of the receiving antenna.

Abstract: Control knob comprising a mobile part (3) capable of being actuated manually and linked with an electromechanical transducer (7). The knob also comprises a metal surface (15) arranged in the vicinity of the mobile part and means to measure the capacitance of the metal surface so that the presence of a finger in the vicinity of the mobile part can be detected.

Abstract: A switching unit which switches the sub antenna, which is for performing diversity reception in cooperation with the main antenna for transmission and reception, from functioning as an antenna to functioning as a parasitic element, or from functioning as a parasitic element to functioning as an antenna, is provided; the main antenna and the sub antenna are provided to be spaced a predetermined distance apart so that multiple resonance can be generated by electromagnetic coupling, and the sub antenna is made to function as a parasitic element to generate multiple resonance, widening the frequency band width within which the main antenna can transmit and receive a radio wave.

Abstract: A coil antenna structure includes a first magnetic component extending in the thickness direction of a tabular primary casing. A second magnetic component and a third magnetic component, which are magnetically connected to the first magnetic component, are disposed on the first principal surface side and the second principal surface side of the primary casing, respectively. The first magnetic component is provided with a coil component surrounding it. In this manner, a U-shaped magnetic path is provided at an end portion of the primary casing so as to detour around a substrate defining an internal conductor. Likewise, a U-shaped magnetic path including fourth to sixth magnetic components is provided in a secondary casing defining a clamshell type casing together with the primary casing so as to detour around a substrate defining as an internal conductor.

Abstract: There is provided a vehicle antenna device having a high connection reliability and mounted simply. A vehicle antenna device comprise a film antenna unit 1 in which an emission conductor pattern 3 is formed on a resin film 2 and a power feeding terminal 4 is exposed to a tongue part 2a; an insulating casing 6 having slits 6a and 6b for inserting the tongue part 2a and an opening 6c for inserting a coaxial cable 20, and installed in the vicinity of the film antenna unit 1; and a circuit substrate 7 which is housed and retained within the casing 6, and connected to the power feeding terminal 4 and the coaxial cable 20, wherein the tongue part is loaded within the casing 6 by passing the tongue part 2a through any one of both slits 6a and 6b, and a an electrode pin 9 connected electro-mechanically to the circuit substrate 7 is pressure-contacted to the power feeding terminal 4 within the casing 6.

Abstract: To provide a compact and low-cost glass antenna in which an antenna position can be easily recognized by emitting a light near the antenna position, and thus a passerby or the like can easily grasp the position when he or she holds up a tag. The glass antenna has plate-like glasses 11A and 11B, antennas 12A and 12B provided on the plate-like glasses 11A and 11B, and a light emitting unit 16a that is provided so as at least a part thereof to be overlapped with the antennas as seen from the direction that the antennas 12A and 12B are directed, and scatters the light guided by the plate-like glasses 11A and 11B to emit light in the vicinity of the antenna.

Abstract: An RFID system that provides an RFID tag comprising a plurality of RFID loop antennas operatively connected to an RFID chip.

Abstract: A three-axis antenna positioner has an X-Y over azimuth configuration, and includes an azimuth drive assembly, an X-axis drive assembly, and a Y-axis drive assembly. Each drive assembly is independently operable. The azimuth drive assembly imparts 540° azimuthal rotational motion to an antenna about an azimuth axis. The X-axis drive assembly rotates the antenna about a horizontal X-axis at elevation angles between ?90° and +90°. The Y-axis drive assembly rotates the antenna about a Y-axis at elevation complement angles between ?2° and +105°. The azimuth axis, the X-axis, and the Y-axis all intersect at a common intersection point, and are mutually orthogonal. A controller operates each drive assembly so as to minimize antenna tracking velocity and acceleration. Each drive assembly may include dual drives, and may be operated in a bias drive mode to substantially eliminate backlash.

Abstract: A controller is configured to operate an antenna positioner, which positions an antenna to track a moving object during a pass, in dual operational modes. The controller determines a maximum expected elevation angle during the pass. The controller de-activates the azimuth drive assembly and activates the x-axis drive assembly and the y-axis drive assembly, if the maximum expected elevation angle is greater than or equal to a predetermined angle. The controller de-activates the x-axis drive assembly, and activates the azimuth drive assembly and the y-axis drive assembly, if the maximum expected elevation angle is less than the predetermined angle.

Abstract: An antenna alignment tool has a housing. A mounting system attaches the housing to the antenna. A compass is attached to the housing. A level may also be attached to the housing.

Abstract: A motorized antenna positioning mechanism in a portable microwave communication unit for use as a ground station in a satellite communication system. The antenna positioner has compact and low profile azimuth wire drive mechanics, azimuth and polarization angle sensors that are not affected by slippage and backlash, and an elevation drive mechanism which neutralizes the pressure on the motor axis due to the weight of the parabolic antenna.

Abstract: The invention relates to apparatus for receiving digital data signals which are transmitted via a satellite transmission system over a given frequency range. The apparatus includes a receiving horn with a throat and a waveguide. The diameter of the throat is greater than that which would be conventionally chosen, and typically greater than the exit aperture of the waveguide, which allows phase and amplitude to be matched and tracking of the (V) and (H) components of received signals across a given frequency range.

Abstract: A dual-band or single-band dipole antenna comprises a first radiating unit, a second radiating unit, and a coaxial cable. The first radiating unit includes a first hollow cylinder and a first side wall. In this case, the first side wall, which is disposed on one end of the first hollow cylinder, has a protrusion portion, a first hole, and at least one groove. The first hole is disposed in the protrusion portion, and the groove is disposed on the protrusion portion. The second radiating unit includes a second hollow cylinder and a second side wall. The second side wall is disposed on one end of the second hollow cylinder. The coaxial cable includes a central conductor and an outer conductor. The central conductor is electrically connected to the first radiating unit through the first hole, and the outer conductor is electrically connected to the second radiating unit.

Abstract: A triangle dipole antenna includes a first substrate, a first radiating part, and a second radiating part. The first substrate has a first surface and a second surface, which is opposite to the first surface. In this case, the first surface has a first feeding point and the second surface has a first grounding. The first radiating part is triangular and disposed on the first surface of the first substrate. The first radiating part has a first interior angle electrically connected to the first feeding point. The second radiating part is triangular and disposed on the second surface of the first substrate. The second radiating part has a second interior angle electrically connected to the first grounding.

Abstract: A dipole antenna includes a substrate, a first radiating member and a second radiating member. The substrate has a first surface and a second surface opposite to the first surface. The first radiating member and the second radiating member are symmetrically disposed on the first surface and the second surface of the substrate, and electrically connected to a grounding point and a feeding point, respectively. The first radiating member has a first radiating part, a second radiating part and a third radiating part, which are respectively disposed on the first surface and the second surface of the substrate and electrically connected to one another. The second radiating member has a fourth radiating part, a fifth radiating part and a sixth radiating part, which are respectively disposed on the first surface and the second surface of the substrate and are electrically connected to one another.

Abstract: A high-performance portable microwave communication unit, consists of a directional antenna, RF transceiver and high-speed data/video processing unit for use in terrestrial point-to-point communications or as a ground station in a satellite communication system. For transportation, the unit is disassembled, folded down and stowed in two airline-checkable hard-shell cases. Each case can be equipped with shoulder straps such that it can be carried like a backpack, a set of wheels so it can be rolled, attached to a MOLLE frame so that it can be carried as a backpack and which allows attachment of accessories. The cases and their interiors have been designed to provide protection for the communication unit, while the construction of the unit itself involves novel mechanical features that allow for compact stowage as well as for rapid disassembly and assembly.

Abstract: A RFID transponder having a microchip or integrated circuit, an impedance-matching structure and a resonant structure mounted on at least one substrate and connected to each other by an electric field.

Abstract: A metadisplay comprising a plurality of subdisplays, each subdisplay comprising a microdisplay for displaying a subimage, and FTFOB having an FTFOB entrance end and an FTFOB exit end, wherein said entrance end is optically coupled to said microdisplay for transmitting said subimage from said entrance end to said exit end, whereby said exit end provides a subdisplay face with said subimage.

Abstract: Described is the outputting of a representation of complex state or other information to an output mechanism, such as computer program state data, in which the output of the state information is configurable. The state information is conveyable via the output mechanism, which may be an auxiliary display device, such as at least one LED and/or luminescent strip, and which may be viewed from a large distance relative to text and graphics displays, and/or remotely on a peripheral device. Logic receives state data from a data source such as an application program, and applies configuration data such as rules and/or user defined preferences to selectively control the output to be conveyed. Various state data may be conveyed via differing colors, differing numbers of LEDs illuminated, differing brightness, differing color intensity, differing hue and/or differing flash/pulse patterns. State information that is output is updatable when some state change occurs.

Abstract: Disclosed is a method of displaying multimedia content using a plug-in in a mobile communication terminal equipped with a WAP (Wireless Application Protocol) browser, including: receiving multimedia content during displaying a WAP page; and blending the WAP page with the multimedia content and displaying the multimedia content and the WAP page on different layers.

Abstract: A display system is disclosed. The display system includes a processor. The display system also includes a first display device having a first display surface and receiving display data from the processor. The display system also includes a second displayed device having a display area smaller then the first display device and moveable over the surface of the first display device. The display system also includes a sensor in communication with the processor and communicating location data to the processor. The location data is representative of the relative location of the first display to the second display. Further still, the display system includes a program running on the processor and providing display data to the first and second display devices. The display data is provided to the second display device based on the location data.

Abstract: An entertainment system includes a housing adapted for being mounted within a seat of a vehicle and a media unit housed within the housing and pivotably coupled to the housing. The housing includes at least one of a groove formed within a sidewall of the housing adapted to engage a movable latch of the media unit, a first flexible member provided on a sidewall of the housing to engage a portion of the media unit for snapping the media unit into place within the housing, or a second flexible member disposed in a face of the housing to provide a spring force on the media unit in a direction away from the housing.

Abstract: A two panel type color display device is disclosed, comprising a buffer memory storing RGB information corresponding to one frame—herein, the RGB information contains the intensity of red, green, and blue colors of (the number of vertical line pixels)×(the number of horizontal line pixels) pixels constituting one frame—; an image processor accessing the RGB information stored in the buffer memory and extracting therefrom fixed color image information corresponding to a fixed color light and a plurality of variable color image information corresponding to a plurality of variable color lights; a color-fixed panel modulating the fixed color light according to the fixed color image information and outputting the modulated fixed color light; a color-variable panel modulating the corresponding variable color lights according to the plurality of variable color image information and outputting the modulated variable color lights sequentially; a fixed color light source providing the fixed color light to the color-fix

Abstract: An apparatus for driving an interlaced plasma display panel (PDP), including a delay device, an image upper and lower edge detection device, an image border processing device, an image processing and analog control loop. The delay device receives an image signal, delays the image signal for two fields and outputs the delayed image signal. The image upper and lower edge detection device receives and analyzes the image signal, outputs the image upper and lower edge positions, saves and provides the odd field upper and lower edge data of the image signal. The image border processing device outputs the image signal after border processing according to the delayed image signal, the image upper and lower edge positions, the odd field upper and lower data. The image processing and analog control loop outputs a driving signal according to the image signal after border processing and the image upper and lower edge positions.

Abstract: In order to realize a display having good contrast and stable addressing by using a gas discharge display device having a screen of a three-electrode surface discharge structure having a characteristics that a counter discharge start voltage is higher than a surface discharge start voltage, prior to starting of initialization of an electrified state as canceling of setting of addressing that was performed last, positive charge is formed between opposed electrodes so that a discharge can be generated easily in the addressing after the initialization, and the initialization is performed so that the formed positive charge does not vanish.

Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a timing controller. The timing controller controls a duration of a rising period of at least one sustain pulse supplied to electrodes during a sustain period of at least one subfield of a plurality of subfields to be different from a duration of a rising period of sustain pulses supplied to the electrodes during sustain periods of the remaining subfields. Further, the timing controller controls a duration of a rising period of at least one of a plurality of sustain pulses supplied to the electrodes during a sustain period of at least one subfield of the plurality of subfields to be different from a duration of a rising period of the remaining sustain pulses supplied to the electrodes.

Abstract: The present invention relates to a plasma display panel, and more particularly, to an apparatus for energy recovery of a plasma display panel.

Abstract: Provided are a plasma display panel and a driving method thereof. The plasma display panel comprises a first display electrode provided in a front substrate, a second display electrode provided in a direction intersecting with the first display electrode in a rear substrate, and an address electrode provided in parallel with the second display electrode in the rear substrate.

Abstract: A plasma display apparatus and a method of driving the same are disclosed. When the plasma display apparatus is driven by dividing a frame into a plurality of subfields, a portion of all scan electrodes is scanned during an address period of at least one of the plurality of subfields.

Abstract: A plasma display apparatus is provided. The plasma display apparatus includes a first substrate, a second substrate, first and second electrodes formed on the first substrate, and a sustain driver for applying a sustain pulse to at least one of the first and second electrodes. The sustain pulse applied to at least one of the first and second electrodes has intermediate pulses having two or more shape between the first and last pulses. According to the plasma display apparatus, pulses of various shapes are applied to a plasma display panel (PDP) in a sustain period so that it is possible to adaptively improve energy efficiency, a sustain voltage margin, and a brightness characteristic.