|
Match
|
Document |
Document Title |
|
|
7602339 |
Method and system for extensible position location
A method and system for extensible positioning that uses a primary reference node at a known first position and a secondary reference node at a second position, where a range is measured between...
|
|
|
7595755 |
Distance estimation
A method for estimating the distance between a transmitter and a receiver, the transmitter being arranged to transmit a signal as a series of bursts, and the carrier frequency of each burst being...
|
|
|
7592956 |
Wireless transmitter location determining system and related methods
A location determining system for a wireless transmitter is carried by a platform movable relative to the wireless transmitter. The location determining system may include an antenna, and a...
|
|
|
7579990 |
Method and system for estimating the location of a wireless terminal from a received signal strength
A first estimated location of a target terminal to be estimated in its location is obtained based on information derived from radio signals for location estimation and also locations of anchor...
|
|
|
7570213 |
Method and apparatus for detecting and locating intrusion in a wireless network
Method and apparatus for locating an intruding radio frequency signal in a wireless network. Relative distance measurements are computed between pairs of receivers from a plurality of receivers to...
|
|
|
7564404 |
Determining precise direction and distance to a satellite radio beacon
The present invention discloses a device and method for precisely determining the direction and distance to a satellite radio beacon. In one embodiment, the disclosed device is used for SAR (search...
|
|
|
7548517 |
Method and apparatus for determining the location of a node in a wireless system
A location technique is utilized where channel-model parameters are originally estimated prior to location taking place. Location then takes place using a first set of known-located nodes, and the...
|
|
|
7545261 |
Passive method and apparatus for alerting a driver of a vehicle of a potential collision condition
The present invention discloses a vehicular collision alert system ( 100 ) which receives signals ( 104 ) from devices ( 102 ) commonly associated with vehicular use. The direction ( 308 ) of the...
|
|
|
7541978 |
Antenna-assisted two-point positioning system
An antenna-assisted two-point positioning system for positioning a mobile device is disclosed. The antenna-assisted two-point positioning system comprises a first wireless communication module...
|
|
|
7528776 |
Beacon-assisted precision location of untethered client in packet networks
A novel beacon-based position location technique for efficient location discovery of untethered clients in packet networks is disclosed. The position location technique utilizes the...
|
|
|
7515103 |
Measuring distance using wireless communication
A method of estimating the distance between a first wireless communication terminal and a second wireless communication terminal includes: receiving a signal at the first terminal, processing the...
|
|
|
7495614 |
System and method for multipath mitigation using clustered positioning signals
A diversity system for positioning systems is disclosed, whereby a plurality of positioning signals, which are transmitted and/or are received from substantially the same location, are received and...
|
|
|
7463194 |
Method for reducing radio ranging errors due to clock frequency offsets
A method reduces errors in two-way ranging between transceivers due to a frequency offset. A first transceiver measures a time C A1 between transmitting a request frame and receiving a reply...
|
|
|
7450069 |
Ranging system and method
A system and method for estimating the range between two devices performs two or more ranging estimates with subsequent estimates performed using a clock that is offset in phase with respect to a...
|
|
|
7451059 |
True azimuth and north finding method and system
A method and a system are recited for obtaining a true azimuth heading for correcting a coarse azimuth heading measured from an observation position to a specific selected target by operating a...
|
|
|
7443342 |
Reception time determining apparatus and distance measuring apparatus using the same
The invention provides a reception time determining apparatus which can measure reception time to a high accuracy, without expanding an occupied bandwidth, and a distance measuring apparatus which...
|
|
|
7389114 |
Estimating the location of inexpensive wireless terminals by using signal strength measurements
A system is disclosed that enables the estimation of the location of a wireless terminal in a wireless network. The illustrative embodiment works without requiring modifications to be made to the...
|
|
|
7383053 |
Position estimation of transceivers in communication networks
This invention provides a system and method using wireless communication interfaces coupled with statistical processing of time-of-flight data to locate by position estimation unknown wireless...
|
|
|
7372405 |
Position location using digital video broadcast television signals
Apparatus to determine the position of a user terminal, the apparatus having corresponding methods and computer-readable media, comprises a receiver to receive, at the user terminal, a wireless...
|
|
|
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...
|
|
|
7362270 |
System and method to perform network node localization training using a mobile node
A method and system for determining a location of at least one stationary node of a wireless network, which includes providing a predetermined path within a geographic space of the wireless...
|
|
|
7358899 |
Distance estimation in a communication system
The present invention relates to estimation of the distance between stations that communicate in a communication system over a radio interface. In the system at least one of the stations transmits...
|
|
|
7359038 |
Passive determination of ground target location
Ground targets can be passively identified on uneven terrain from an observation point elevation above a known reference point, a line-of-sight inclination angle, an azimuth angle and a digital...
|
|
|
7339526 |
Synchronizing ranging signals in an asynchronous ranging or position system
In a local positioning system, the land-based transmitters include free running oscillators or oscillators free of clock synchronization with any remote oscillator. A reference receiver receives...
|
|
|
7339524 |
Analog decorrelation of ranging signals
In a local positioning system, a receiver is adapted for receiving signals from a land-based transmitter. The receiver includes an analog decorrelator for decorrelating the transmitted spread...
|
|
|
7327314 |
Two-way ranging between radio transceivers
A method estimates a distance between transceivers in a wireless communications network. A first time interval T is set in a transmitter and a receiver. A signal is transmitted from the transmitter...
|
|
|
7312753 |
Mobile terminal positioning system
There is provided a radio base station apparatus which is capable of increasing the probability of detection of a first path even if a radio transmission path fluctuates due to fading or the like,...
|
|
|
7308276 |
Method for locating mobile units based on received signal strength ratio
Location of mobile units in a wireless local area network is based on use of signal strength ratios and other criteria. In one embodiment absolute value of signal strength is used to derive a...
|
|
|
7298323 |
Apparatus and method for locating user equipment using global positioning system and dead reckoning
An apparatus and method for locating a UE using a GPS and a dead-reckoning sensor are disclosed. At an initial time, the UE calculates its initial position and the initial position of a serving...
|
|
|
7292187 |
Determining a position of at least one beacon in a location system
A position for a beacon in a location system is determined based on distances measured from positions in a local coordinate system for the location system and from intersection points of circles....
|
|
|
7272404 |
Position acquisition
A first transceiver ( 4, 30 ) can position itself by forming an ad hoc network ( 20 ) of transceivers which assist the first transceiver in acquiring its position. A dedicated infrastructure such...
|
|
|
7269424 |
Mobile terminal implementing a ranging signal receiver and method
Mobile terminal implementing a ranging signal receiver and method. Means are provided to incorporate ranging signal reception capability into a mobile terminal (such as a UMTS terminal)...
|
|
|
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...
|
|
|
7262733 |
Method of estimating the location of a device
Methods of providing an estimate of the location of a first device are discloses comprising the steps of determining the location of a separately housed, second device located near to the first...
|
|
|
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...
|
|
|
7239277 |
Method and system for extensible position location
A method and system for extensible positioning that uses a primary reference node at a known first position and a secondary reference node at a second position, where a range is measured between...
|
|
|
7209751 |
System and method for proximity motion detection in a wireless network
Systems and Methods are described for determining proximity motion of a mobile wireless device around a fixed target node. The present invention provides a method of regressively analyzing the...
|
|
|
7205938 |
Wireless node location mechanism responsive to observed propagation characteristics of wireless network infrastructure signals
A wireless node location mechanism that dynamically adapts to changes to a surrounding physical environment that affect the propagation of radio signals. The wireless node location mechanism...
|
|
|
7203500 |
Apparatus and associated methods for precision ranging measurements in a wireless communication environment
An apparatus and associated methods to provide precision ranging measurements in an ultrawideband (UWB) wireless communication system are generally described. In this regard, according to one...
|
|
|
7187327 |
Method and system for determining the position of an object
A method and system for determining the location of an object. The system may implement a number of sensors at different locations that are positioned to receive a transmitted or reflected signal...
|
|
|
7155201 |
Method and network for emergency call services
A method and network provide mobile information for emergency calls based on mobile position during a call in progress. As soon as an Emergency Services Call is invoked, the Mobile Station position...
|
|
|
7151490 |
System and method for estimating separation distance between impulse radios using impulse signal amplitude
A method and system are provided for locating an impulse radio. Impulse radio signals are communicated between a first impulse radio and a plurality of second impulse radios. A received signal...
|
|
|
7116272 |
Direction and distance finder for locating distress signals
The present invention relates to a system and method for locating the direction and distance to a RF signal source from an avalanche beacon to find an avalanche victim. The system and method...
|
|
|
7106203 |
Self-activating system and method for alerting when an object or a person is left unattended
A system and method use a wireless tether comprising a transmitter and a receiver to alert a caregiver that an object has been left unattended. A detector senses the presence of the object, usually...
|
|
|
7099676 |
System and method for location and motion detection in a home wireless network
A method and system for determining location and/or motion for one or more wireless devices communicating at short range (i.e. less than about 30 feet) with other wireless devices on a wireless...
|
|
|
7065325 |
Self calibration of signal strength location system
A system for locating mobile units in a data communications system based on signal strength measurements of mobile unit transmissions is calibrated for variations in mobile unit transmitter power...
|
|
|
7064711 |
Method for iterative determination of distance between receiving station and transmitting station and also calculating unit and computer software product
Information received by a calculating unit via a signal from a transmitting station to a receiving station is provided with a code, a number of integral multiples of the code coming into the...
|
|
|
7061428 |
Frequency hopping range estimation with low power consumption
An arrangement comprising a master unit and one or more slave units, where the master sends out bursts, at specified intervals, in a frequency hopping manner, with each burst being at a different...
|
|
|
7042395 |
Method of providing an estimate of a location
A method of providing an estimate of the location of first and second devices MS 1 , MS 2 comprising the steps of obtaining at least one range measurement from the first device MS 1 to a known...
|
|
|
7026983 |
Location data diffusion and location discovery
A location discovery method using location data items that originate at known locations (X,Y) and are passed to, and diffused between, entities (A,B) by short-range communication. Each location...
|