Quotables
"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7667649 | Detection of time of arrival of CDMA signals in a wireless location system In a Wireless Location System (WLS) deployed in connection with a CDMA-based wireless communications system, Location Measurement Units are used to collect multi-path corrupted radio signaling for use in time difference of arrival (TDOA) and hybrid positioning metho... | 02/23/2010 |
| 7636062 | Location device and system using UWB and non-UWB signals A portable location device for use in a location system, the device comprising a transmitter for transmitting ultra-wideband signals, a receiver for receiving non-ultra-wideband signals and a control unit coupled to the receiver for controlling the operation of the ... | 12/22/2009 |
| 7626546 | Methods and systems for detection and location of multiple emitters Systems and methods for detection and geolocation of multiple emitters that are emitting RF signal energy on a common frequency, and that may be implemented to separate, geolocate, and/or determine the number of emitters (e.g., radio users) emitting on a common RF f... | 12/01/2009 |
| 7612717 | ULB location system for rescuing avalanche victims A method for locating a UWB transmitter, without a previously-set reference, using at least one first set of at least three UWB searching transceivers, including first, second, and third transceivers. The method a) synchronizes the three UWB searching transceivers, ... | 11/03/2009 |
| 7598911 | Method and system for positioning mobile units based on angle measurements A method and system for positioning mobile units using angle measurements taken by neighboring mobile units is disclosed. A selected mobile unit and mobile units in the vicinity of the selected mobile unit are selectively instructed to measure and report information... | 10/06/2009 |
| 7576695 | Multilateration enhancements for noise and operations management Multilateration techniques are used to provide accurate aircraft tracking data for aircraft on the ground and in the vicinity of an airport. From this data, aircraft noise and operations management may be enhanced. Aircraft noise may be calculated virtually using tr... | 08/18/2009 |
| 7561105 | Emitter locating using time-difference-of-arrival (TDOA) techniques The present invention provides a method of selecting receiving pairs from a set of at least three receivers that may be used to localize an emitter. This involves identifying the set of at least three receivers to be used to localize the emitter. An isochron may be ... | 07/14/2009 |
| 7557754 | Method for use in a multilateration system and a multilateration system Groupings of receivers for determining a target location by a multilateration system are selected to give the best geometric dilution of precision result by eliminating the receiver that makes the greatest contribution to such dilution. In this way the groups to be ... | 07/07/2009 |
| 7551138 | Method and apparatus for signal tracking utilizing universal algorithm A method and apparatus for signal tracking utilizing a universal algorithm is disclosed. The method and apparatus generally include acquiring a signal measurement corresponding to a signal, forming a measurement matrix utilizing the acquired signal measurement, and ... | 06/23/2009 |
| 7551139 | Multi-platform precision passive location of continuous wave emitters An apparatus comprises a first sensor mounted on a first platform for sampling a first portion of a continuous waveform occurring in a time window and for producing a first signal sample, a second sensor mounted on a second platform for sampling a second portion of ... | 06/23/2009 |
| 7545326 | Wireless tracking system and method with multipath error mitigation A system (50) and method (300) for providing multipath error mitigation for real-time wireless tracking of an object (100) is disclosed herein. A plurality of sensor readings are obtained from a tag (60) attached to an object (100)... | 06/09/2009 |
| 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 comprising first antennas, a second wireless communication module compris... | 06/02/2009 |
| 7535420 | Method and apparatus for signal tracking utilizing universal algorithm Embodiments of the present invention provide a method and apparatus for signal tracking utilizing a universal algorithm. The method and apparatus generally include acquiring a signal measurement corresponding to a signal emitted from an emitter, forming a measuremen... | 05/19/2009 |
| 7515105 | Method for mapping machine rooms and locating machines within machine rooms A system and method automatically maps computer center rooms and locates data center components within computer centers. Radio triangulation is used to determine the locations and, optionally, orientation, of machines within a computer center. ... | 04/07/2009 |
| 7498986 | Methods and systems for locating actuators for improvised explosive devices A method for determining the location of an actuating device is described. The method includes receiving transmissions from the actuator utilizing a plurality of multiple channel receiving devices, determining a direction to the actuator based on the signals receive... | 03/03/2009 |
| 7492316 | Wireless time reference system and method Instead of normalizing time reference of independent spatially-located clocks using a reference tag transmission from known location, the present invention uses an interarrival time interval between a pulse pair of UWB pulses as a timing metric. Thus, a method of sy... | 02/17/2009 |
| 7471245 | Method and apparatus for estimating geolocations Methods and apparatus operable to estimate the geolocation of a signal emitter. In some embodiments, the methods comprise acquiring collection data from a plurality of collector elements, computing a plurality of candidate geolocations from the acquired collection d... | 12/30/2008 |
| 7463195 | Position location using global positioning signals augmented by broadcast television signals A method, apparatus, and computer-readable media for determining the position of a user terminal comprises receiving at the user terminal a broadcast television signal from a television signal transmitter; determining a first pseudo-range between the user terminal a... | 12/09/2008 |
| 7453400 | Multiplatform TDOA correlation interferometer geolocation A radio geolocation system is described in which a plurality of moving platforms such as aircraft concurrently receive a signal from a remote transmitter and the geolocation of the transmitter is determined. At each platform every thirty seconds a plurality of sampl... | 11/18/2008 |
| 7433652 | Electro-magnetic propagation modeling A generalized framework is disclosed in which a wide variety of propagation models can be cast in a matrix-based format using arbitrary matrix coefficients. Casting propagation models in the matrix-based framework enables efficient computer implementation and calcul... | 10/07/2008 |
| 7429951 | System and method for enhancing the accuracy of a location estimate A method for enabling a system to enhance the accuracy of a location estimate modifies weights in a weight matrix associated with receiver station measurements in parallel with successive refinements of the location estimate. In a typical location estimation scenari... | 09/30/2008 |
| 7427952 | Augmentation of commercial wireless location system (WLS) with moving and/or airborne sensors for enhanced location accuracy and use of real-time overhead imagery for identification of wireless device locations Mobile LMUs can be used in a Wireless Location System to provide detection coverage in areas lacking adequate receiver coverage. The mobile LMUs can be used to detect the radio frequency (RF) transmissions from wireless handsets and devices over a period of time to ... | 09/23/2008 |
| 7423589 | Method for localising at least one emitter The invention relates to a method of localization of one or more sources, said source or sources being in motion relative to a network of sensors, the method comprising a step of separation of the sources in order to identify the direction vectors associated with th... | 09/09/2008 |
| 7424402 | System and method for making synchronized signal measurements at spaced apart locations A system and method is disclosed which allows for the simultaneous capturing of signals at a plurality of diverse locations. In one embodiment, all transmissions received at each location are recorded for a period of time and after that period of time the recorded t... | 09/09/2008 |
| 7421212 | Detecting and locating pulses using a Bragg cell Detecting a pulse of a signal includes receiving the signal and a light beam. The signal drives a spatial light modulator to modulate the light beam, where the complex amplitude of the modulated light beam is proportional to the signal current. The modulated light b... | 09/02/2008 |
| 7420510 | Location and tracking of people with combined use of RF infrastructure and dead reckoning modules A system for tracking persons and other assets in a structure, having a multi-function tracking tag and a network of fixed RF receivers forming a gateway array. The location of the person being tracked is calculated by a computer using an algorithm that weights each... | 09/02/2008 |
| 7411548 | Reference beacon identification using transmission sequence characteristics A method and apparatus for encoding information in a reference beacon signal for use in a time-difference-of-arrival/frequency-difference-of-arrival (TDOA/FDOA) geolocation system. Information is encoded in the reference beacon signal using variations in the times a... | 08/12/2008 |
| 7411551 | System and method for asynchronous wireless positioning by ordered transmission Disclosed is a wireless positioning system and method that can perform a high-precision position tracking. The wireless positioning system includes a target device that is an object of wireless positioning, beacon devices and a processing unit. The beacon devices tr... | 08/12/2008 |
| 7406320 | Method and system for location estimation in wireless networks A system and method for locating a wireless device in one or more wireless networks within a selected geographic region. The method includes generating a computer model of a selected geographic region including a layout and inputting information associated with one ... | 07/29/2008 |
| 7382286 | System and method for the correlation of multiple data feeds A method of receiving a first set of target data points from a first data feed and receiving a second set of target data points from a second data feed arrangement. Comparing a time variable included in the target data points from the first set to the time variable ... | 06/03/2008 |
| 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 points connected to a terminal station by wireless communication are co... | 05/27/2008 |
| 7375683 | Use of geo-stationary satellites to augment wide area multilateration synchronization The present invention improves WAMLAT Timing Availability by using timing from one or more of a variety of sources. These sources include unaugmented SATNAV timing, from GPS or/and GALILEO, GEO timing from pseudo SATNAV signals, additional GEO timing for non SATNAV ... | 05/20/2008 |
| 7372386 | Parallel digital-to-analog-converter A method for performing parallel digital-to-analog conversion of an n-bit digital input data signal at a frequency of fs including receiving the n-bit digital input data signal; generating M−1 delayed input data signals, M being the number of parallel c... | 05/13/2008 |
| 7366492 | Method and system for mobile location detection using handoff information Methods and systems for mobile station location detection. A mobile station measures signal strength of each of a set of signals associated with the mobile station, then determines whether a number of signals in the set is less than a predetermined threshold. Based ... | 04/29/2008 |
| 7363126 | Core area territory planning for optimizing driver familiarity and route flexibility Route planning methods for use by a package delivery service provider are disclosed that satisfy a stochastic daily demand while taking advantage of drivers' route familiarity over time. A model for estimating the value of driver familiarity is disclosed along with ... | 04/22/2008 |
| 7358862 | Radiosonde system, radiosonde system receiver and signal processing method in a radiosonde receiver This publication discloses a radiosonde system, a radiosonde system receiver and a signal processing method for use in a radiosonde system. The radiosonde system comprises at least one radiosonde (1) with means for acquisition of position and/or weather data ... | 04/15/2008 |
| 7359719 | Radio positioning systems The invention described relates to a radio positioning system primarily for a mobile telephone network, in which a list of offsets in time, phase, frequency, or derivatives thereof, or their equivalents expressed as offsets in distance or derivatives thereof, of a p... | 04/15/2008 |
| 7355514 | Method and system for locating a dependent A method and system for locating a dependent by a guardian entity at a locality using RFID technology is disclosed. A RFID tag is situated with the dependent and a plurality of RFID reader devices capable of communicating with the RFID tag are distributed about the ... | 04/08/2008 |
| 7356494 | Robust wireless communications system architecture and asset management applications performed thereon A robust wireless communications system operable to provide communications for mobile wireless devices. The wireless communications system generally includes a management computing system, wireless infrastructure, and mobile wireless devices. The wireless infrastruc... | 04/08/2008 |
| 7356580 | Plug and play sensor integration for a process module A process chamber with a computer system that controls the process chamber is connected to one or more sensors, which are used to monitor the process in the process chamber. The sensors are connected to the computer system in a client/server relationship, in a way t... | 04/08/2008 |