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7612708 |
RF system for tracking objects
A system for tracking an object in space for position, comprises a transponder device connectable to the object. The transponder device has one or several transponder aerial(s) and a transponder...
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7602329 |
Systems and methods of tracking and/or avoiding harm to certain devices or humans
The present invention relates to systems and methods of tracking and/or avoiding harm to certain devices or humans. According to one exemplary embodiment, a method of tracking individual assets may...
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7592944 |
System and method for intrusion detection using a time domain radar array
A system and method for highly selective intrusion detection using a sparse array of ultra wideband (UWB) radars. Two or more UWB radars are arranged in a sparse array around an area to be...
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7590720 |
Systems and methods for locating geographical regions of mobile computer users
System and methods for locating a mobile computing unit are described. In some cases the systems and/or methods determine a geographical region in which a mobile computing unit is located using...
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7580995 |
Systems and methods for locating mobile computer users in a wireless network
System and methods for locating a computer user are described wherein the computer either periodically updates a network server with its location, or updates the network server when asked by the...
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7573418 |
Tag communication apparatus, control method for tag communication apparatus, computer readable medium for tag communication control and tag communication control system
A direction estimating section estimates the incoming direction of a radio wave from an RFID tag in each of antennas. A position calculating section calculates the position of the RFID tag on the...
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7573419 |
Method and system for unambiguous angle resolution of a sparse wide-band antenna array
The present inventive concept for bistatic or monostatic radar utilization discloses a method and a system for unambiguous angle resolution of a sparse wide-band array antenna by utilizing an ultra...
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7558851 |
Locating a mobile computing unit
System and methods for locating a mobile computing unit are described. In some cases the systems and/or methods determine, at a mobile computing unit, the mobile computing unit's absolute...
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7548731 |
Method to reduce power consumption of static wireless beacons and cost of infrastructure
The present invention provides for reducing power consumption of a positioning system having wireless beacons. A wireless transmitter static beacon is provided, which has a known position, signal...
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7545311 |
Method and system for predicting air-to-surface target missile
A method and system for predicting a trajectory of an air-to-surface target missile is provided, including detecting a plurality of echo wave signals from the target missile through a plurality of...
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7545312 |
Target detection device and its detection method
This invention relates to a target detection device and its detection method, comprising: a transmitting unit for transmitting a detecting pulse to detect target which then reflects the detecting...
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7541968 |
System and method for detecting an intruder using impulse radio technology
An intrusion detection system and method are provided that can utilize impulse radio technology to detect when an intruder has entered a protection zone. In addition, the intrusion detection system...
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7515090 |
High-frequency position/path sensor for detecting the approach of an object and method for detecting the approach of an object
A high-frequency position/path sensor for detecting the approach of an object, with a detection range in a near field, which comprises a high-frequency transmitter and a high-frequency receiver, is...
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7515874 |
Directivity optimization for short-range wireless mobile communication systems
The present invention provides a short-range wireless mobile communication system with a first terminal and a mobile terminal that are each adapted for transmitting and receiving an information...
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7479891 |
Device for rescue and safety for swimming pools and leisure parks
A rescue and safety device for swimming-pools and amusement parks, consisting of a wristband containing a cardiac-arrest detector, a panic button, a location device and, optionally, a water...
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7466262 |
Positioning system with a sparse antenna array
In one embodiment of a positioning system, a transmit element is configured to transmit at least one electromagnetic pulse having a carrier signal frequency. An antenna array with a plurality of...
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7427945 |
Positioning system with co-polarized and cross-polarized mapping
A local positioning system using co-polarized and cross-polarized radar mapping is provided. In one embodiment of the method, at least a first electromagnetic pulse having a first polarization is...
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7423580 |
Method and system of three-dimensional positional finding
The present invention is an RF system and methods for finding a target T in three dimensional space configured to have a transponder disposed on the target T, a monitoring unit configured as a...
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7417581 |
System and method for intrusion detection using a time domain radar array
A system and method for highly selective intrusion detection using a sparse array of time modulated ultra wideband (TM-UWB) radars. Two or more TM-UWB radars are arranged in a sparse array around...
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7385551 |
Polarization sensitive synthetic aperture radar system and method for local positioning
A positioning system includes a passive, isotropic reflecting landmark at a fixed position and a device. The device transmits an electromagnetic pulse having a circular polarization and receives a...
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7379744 |
Positioning system, positioning method, and positioning server
To provide a positioning system, a positioning method, and a positioning server, which are capable of improving accuracy in detection of a position. In a positioning system, three or more access...
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7379015 |
First responder positioning apparatus
A positioning system for tracking the location of a first responder emergency worker. The system includes mobile enabler units and a personnel badge having a ranging transponder. Two enabler units...
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7375675 |
Method and system for multiple target class data recording, processing and display for over-the-horizon radar
A method and apparatus are disclosed that enable an over-the-horizon-radar (OTHR) system to detect and track multiple target classes simultaneously, where target classes are defined by the speed...
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7369941 |
Collision detection system and method of estimating target crossing location
A collision detection system and method of estimating a crossing location are provided. The system includes a first sensor for sensing an object in a field of view and sensing a first range defined...
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7345582 |
Methods for detecting, computing and disseminating location information of weapons of mass destruction
The present invention relates systems and methods to determine the location information of a signal made from a radioactive device or hazardous material. The system employs multiple radiation...
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7345621 |
Real-time multistatic radar signal processing system and method
A real-time signal processing engine robustly detects, localizes, tracks and classifies ground targets based on radar signals from a multistatic radar system. The system differentiates between...
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7333049 |
Waveform ambiguity optimization for bistatic radar operation
A radar transmitter is at a first location on a moving platform and illuminates a target with a sequence of frequency modulated radar pulses. The frequency modulated pulses are linear frequency...
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7327306 |
RF system for tracking objects
A system for tracking an object in space for position, comprises a transponder device connectable to the object. The transponder device has one or several transponder aerial(s) and a transponder...
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7321330 |
Ball measuring apparatus
The present invention provides a ball measuring apparatus capable of measuring a trajectory of a ball from a hitting position to a landing position, the landing position and a stop position. A ball...
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7315275 |
Positioning system with intentional multi-path signal
A positioning system includes a device, having an antenna and a reflector with a known position proximate to the antenna, that transmits at least an electromagnetic pulse having a carrier signal...
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7304609 |
Hybrid wireless ranging system and associated methods
A wireless ranging system includes a first wireless unit and a second wireless unit spaced therefrom. The first wireless unit may include a time-of-arrival (TOA) wireless transmitter, and a...
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7298255 |
Sensory systems employing non-uniformly spaced waveguide sensors for determining orientation and rotational speed of objects
A sensory system for determining the orientation of an object, wherein the sensory system includes a plurality of non-uniformly spaced waveguide sensors or array(s) of waveguide sensors. The...
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7295158 |
System and method for real time effects automation
An effects automation system for generating control data for the control of effects devices, based on the relative position of a mobile target. The system uses stationary receivers and stationary...
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7295154 |
Vehicle obstacle warning radar
A method for detecting an object using a transmitting antenna and an array of receiving antennas. The method comprises the step of transmitting a signal from the transmitting antenna. The magnitude...
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7292179 |
Instantaneous passive range finding
A method and apparatus for use in determining the range in a single time sample from a platform to a target are disclosed. The method includes receiving radiation emanating from the target at two...
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7275431 |
Vehicle mounted system for detecting objects
A method for object detection using vehicle-mounted sensors is provided, the sensing ranges of which sensors overlap at least partially. In this context, signals of at least two sensors having...
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7277046 |
Single transmit multi-receiver modulation radar, multi-modulation receiver and method
A single transmit multi-receiver modulation radar modulates radar return signals received through an associated receive-signal path with one of a plurality of differing modulation waveforms having...
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7268723 |
System and method for locating targets using measurements from a space based radar
A system and method for determining a position of a target within an acceptable tolerance using an iterative approach. A airborne or space-based measuring device is used to measure an estimated...
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7263369 |
Distance determination method for use by devices in a wireless network
The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network...
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7257413 |
Dynamic location almanac for wireless base stations
A system and method of dynamically updating an almanac of base stations with wireless phones that are controlled by end users. First, second, and third location information are received...
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7250901 |
Synthetic aperture radar system and method for local positioning
A positioning system includes a passive, isotropic reflecting landmark at a fixed position and a device. The device transmits an electromagnetic pulse having a circular polarization and receives a...
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7248882 |
Distance determination apparatus for use devices in a wireless network
The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network...
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7205930 |
Instantaneous 3—D target location resolution utilizing only bistatic range measurement in a multistatic system
A multistatic radar has a radar transmitter for illuminating a target with a radar signal. The target reflects the radar signal to three separate radar receivers, each performing a bistatic range...
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7170441 |
Target localization using TDOA distributed antenna
This invention is a system and method of locating a target using distributed antenna. The antenna consists of several receiving elements in known locations. At least one of the receiving elements...
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7151480 |
Method and system of triangulating an object
A method and a system of triangulating an object by means of at least two sensors. Each sensor is placed in a respective local reference system. Each of the at least two sensors at least provide a...
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7148839 |
Operational bistatic radar system synchronization
A bistatic radar has a radar transmitter at a first location on a moving platform having a motion and a radar receiver at a second location, remote from the first location. The transmitter...
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7142147 |
Method and apparatus for detecting, locating, and identifying microwave transmitters and receivers at distant locations
Methods and apparatuses for detecting, locating, and identifying microwave transmitters and receivers at distant locations are disclosed. First and second electromagnetic beams at first and second...
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7138941 |
In-situ calibration of radar frequency measurement
Frequency calibration of a bi-static type of radar system is performed by positioning radar transmitter and receiver in spaced relation to each other over a targeted seawater surface from which...
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7129886 |
System and method for detecting an intruder using impulse radio technology
An intrusion detection system and method are provided that can utilize impulse radio technology to detect when an intruder has entered a protection zone. In addition, the intrusion detection system...
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7129830 |
Methods and systems for providing security
A security system is described which includes a base station, at least one calibration unit and at least one sensor module having at least one sensor therein. The calibration unit is configured to...
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