Abstract: A vision measuring machine includes a stage for supporting a workpiece, an image capturing device movable relative to the stage, and a laser ranging module directed towards the stage. The laser ranging module is capable of emitting a laser beam to the workpiece to form a laser spot on the workpiece surface, and determining a distance between the laser spot and the laser ranging module.

Abstract: Disclosed is a complex multifunction system of a frequency band (130 dBm) frequency extension modulation of a GPS terminal in a life jacket which is used when there is an accident at sea, at a ship or at an airplane. The system comprises a body including a front plate which transmits and receives a frequency transferred from the GPS terminal in a life jacket in a process of introducing and sharing a coupling scheme with interspace-VLBI in frequency band 130 dBm, and a rear plate which is in contact with a tag of an HDX frequency extension modulation; a head unit for attaching a iris on a head of the body and supporting a frequency propagation amplification transmission of a microstrip fetch antenna; and a location based service (LBS) attached to a middle portion of the front plate of the body or a head unit, having a function of transmitting an emergency rescue signal and converting the signal into a multi-language voice information service.

Abstract: An optical sight includes an outer barrel unit, an objective lens unit, an ocular lens unit, a magnification unit, a range-finding module, and a display unit. The objective lens and the ocular lens unit are mounted to front and rear ends of the outer barrel unit, respectively. The magnification unit is disposed between the objective lens unit and the ocular lens unit. The range-finding module is disposed on the magnification unit, and includes a light emitter, a light receiver, and a micro processing unit. The display unit is disposed in the outer barrel unit, and includes a seat mounted adjustably between the magnification unit and the ocular lens unit, and a transparent display secured to the seat and coupled electrically to the micro processing unit. The transparent display has an aiming indicator, and a message indicator for visual indication of a range calculated by the micro processing unit.

Abstract: An apparatus includes a radio receiver, a GPS receiver and a semiconductor package. The semiconductor package contains both the radio receiver and the GPS receiver.

Abstract: The invention relates to a device and a method wherein tunable transmitters and detectors (receivers) are integrated into a non-linear detection system and a narrow-band signal having a variable frequency is used. The scanable frequency range should be between 10-100 MHz. The frequency acceptance range for the second and third harmonic is adjusted according to the transmit frequency.

Abstract: A radar high frequency module having at least one distance piece mounted at the flat top wall of the shielding cover for supporting the shielding cover on the printed circuit board without mechanical contact of the downwardly extending side walls of the shielding cover with the printed circuit board to allow alignment of a rod antenna to a patch antenna arranged on the printed circuit board with greater precision. The side walls may be fixed to the printed circuit board by a conductive adhesive.

Abstract: A receiver in receipt of a plurality of pseudo noise codes, where each of the pseudo noise codes originates from a GPS transmitter and a plurality of chips make up each pseudo noise code with an offset between 511 chips before a pseudo noise code boundary and 512 chips after the pseudo noise code boundary, and a local clock having an error of less than 0.5 ms relative to a GPS time and synchronized to a GPS signal that is able to be decoded with a decoder connected to the receiver and the local clock and by simultaneously solving the four pseudo range equations for at least four GPS transmitters a determination of the location of the receiver occurs.

Abstract: Systems and methods are provided that employ one or more mirrors to harvest laser beams emitted by a physical rangefinder within a region of interest that would otherwise not intersect an object within the region of interest. The mirrors redirect the harvested beams back within the region of interest, creating one or more virtual rangefinders that supplement the physical rangefinder. The location of the virtual rangefinders is symmetric to the position of the physical rangefinder about the plane of the mirror and along the line normal to the mirror passing through the physical rangefinder. The virtual rangefinders, which operate synchronously with the physical rangefinder, thus provide a view of the object(s) from an angle different from that of the physical rangefinder.

Abstract: A coherent imaging system for producing high resolution images is provided. A coherent radiation source module produces two radiation beams, each at a different instance. An optical component directs the first radiation beam towards a target at a first angle to produce a first return beam, and also produces a first reference beam. Another optical component directs the second radiation beam towards the target at a second angle to produce a second return beam, and also produces a second reference beam. An aperture collects the first return beam and the second return beam. A detector module produces two coherent images based on interference between the return beams and the reference beams. The detector module also combines the first coherent image and the second coherent image to produce a high resolution coherent image, which has a resolution higher than a resolution of the first coherent image or the second coherent image.

Abstract: Systems and methods for tracking a remote source and monitoring and controlling the angular orientation of an antenna array, including a first antenna portion and a second antenna portion, are provided, including a sum-difference structure coupled to a first output of the first antenna portion and a second output of the second antenna portion, where the sum-difference structure provides both a sum power signal and a difference power signal, and where both the sum power signal and the difference power signal have associated RSSI values generated by an RSSI circuit. Systems and methods provided herein further include a sum-delta processor configured to utilize the RSSI values to generate an off-bore-sight angle of the antenna array relative to a position of a transmitting radiofrequency signal source.

Abstract: Systems and methods for facilitating a first response mission at an incident scene, such as an accident site, a natural or human-made disaster site, or any other first response site. One system is for locating a plurality of portable modules at an incident scene. The system comprises a plurality of receivers transportable to the incident scene. The system also comprises a processing entity configured to: determine a location of a first one of the portable modules based on first data derived from a wireless signal transmitted by the first one of the portable modules and received by at least three receivers of the plurality of receivers; and determine a location of a second one of the portable modules based on the location of the first one of the portable modules and second data derived from a wireless signal transmitted by the second one of the portable modules and received by the first one of the portable modules.

Abstract: A radioterminal includes a wireless communications transceiver, a GPS receiver and a controller. The controller is configured to authorize at least one other radioterminal to receive geographic position information of the radioterminal, to activate the GPS receiver to obtain a measure of a geographic position of the radioterminal and to activate the wireless communications transceiver to transmit the measure of the geographic position of the radioterminal to the at least one other radioterminal that was authorized, responsive to a rate of change of position of the radioterminal. Related methods also are described.

Abstract: A method for concentrating radio frequency (RF) radiation on an object located in proximity to a reflector includes the steps of: selecting a target reflector and a level of power for conveying to the target reflector by reradiation from the target reflector, determining a resonance profile of the target reflector, the resonance profile including at least one resonant frequency of the target reflector, selecting a transmission profile matching the resonance profile, the transmission profile comprising the at least one resonant frequency, and transmitting RF radiation in accordance with the transmission profile towards the target reflector.

Abstract: In an antenna positioning method for a communication device that performs communication using a plurality of antennas positioned on a straight line, the method has a first step of measuring radiation pattern characteristics of each antenna, a second step of detecting a direction in which fluctuation of the radiation pattern characteristics of each antenna is large, and a third step of positioning each antenna in the communication device so that the direction in which the characteristic fluctuation is large matches the straight line direction.

Abstract: A global navigation satellite system (GNSS) enabled mobile device may be operable to monitor and determine counts at which autoblank signals are asserted over time intervals corresponding to consecutive time windows during the RF interference mitigation process using autoblanking. The GNSS enabled mobile device may be operable to disable the generation of a blank signal when the count may be greater than a particular count threshold at the end of the time window. The GNSS enabled mobile device may be operable to enable the generation of a blank signal when the count may be less than or equal to a particular count threshold at the end of the time window. The blank signals may be used to blank the processing of the received GNSS signals.

Abstract: The invention relates to a calculation device providing means for estimating an indication of integrity of a satellite navigation system, including a means for estimating in real time, by measuring data calculated by the navigation system, an indication of integrity of the system with respect to very low-probability location errors, the device including a means for receiving data calculated by the location system, a means for estimating a model of distribution of location errors, a means for estimating parameters characterizing the distribution model, a calculation means applying the extreme values theory as a function of the parameters characterizing the distribution model enabling the modeling of the distribution of very low-probability location errors, a means for estimating in real time an indication of integrity for very low-probability location errors, and a means for transmitting in real time an indication of integrity.

Abstract: A disclosed vehicle control device includes a first ionospheric state information receiving unit receiving information of a predicted ionospheric state at a time point later than a current time point; a second ionospheric state information receiving unit receiving information of an ionospheric state at the current time point; an ionospheric delay error estimating unit estimating an ionospheric delay error by correcting a first ionospheric delay error based on a second ionospheric delay error, the first ionospheric delay error being derived based on the first ionospheric state information, and the second ionospheric delay error being derived based on the second ionospheric state information; and a positioning unit locating a position of a moving body based on a receiving result of a radio wave from a satellite and the estimated ionospheric delay error.

Abstract: In a positioning system comprising a position information transmitter that transmits a position information signal containing position information indicative of a position as a signal compatible with a satellite positioning signal transmitted from an artificial satellite and a communication terminal that when receiving the satellite positioning signal, finds a current position of the communication terminal by finding a position of the artificial satellite and that when receiving the position information signal, finds a current position of the communication terminal based on the position information, the position information transmitter transmits the position information signal containing a boundary flag that determines which of the satellite positioning signal or the position information signal each of correlators of the communication terminal is to receive, and the communication terminal sets which of the satellite positioning signal or the position information signal each of the correlators is to receive ba

Abstract: The invention is generally related to the estimation of position and orientation of an object with respect to a local or a global coordinate system using reflected light sources. A typical application of the method and apparatus includes estimation and tracking of the position of a mobile autonomous robot. Other applications include estimation and tracking of an object for position-aware, ubiquitous devices. Additional applications include tracking of the positions of people or pets in an indoor environment. The methods and apparatus comprise one or more optical emitters, one or more optical sensors, signal processing circuitry, and signal processing methods to determine the position and orientation of at least one of the optical sensors based at least in part on the detection of the signal of one or more emitted light sources reflected from a surface.

Abstract: A radar system is disclosed, which comprises an orthogonal frequency division multiplexing (OFDM) modem and a frequency scanning antenna. In transmit, the OFDM modem modulates radar waveforms and the frequency scanning antenna radiates the OFDM modulated radio frequency (RF) energy. In receive mode, the frequency scanning antenna captures the echoes and the OFDM modem demodulates the echoes. Directionality of the frequency scanning antenna is dependent upon RF carrier frequency. In other features, the radar system further comprises a transmit/receive (T/R) module that up-converts and amplifies the OFDM modulation, and outputs the amplified signal to the frequency scanning antenna. The T/R module amplifies and down-converts a received RF echo from the frequency scanning antenna and outputs the down-converted echo to the OFDM modem. A plurality of scanning angles are measured simultaneously.