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"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Application No. | Application Title | Issue Date |
| 20120032855 | HIGH-RESOLUTION RANGING AND LOCATION FINDING USING MULTICARRIER SIGNALS The invention relates to methods and systems for accurate ranging and geo-locationing using coherent multicarrier (CM) signals and based on a high-resolution estimation of a receiver timing offset in a signal receiver that receives ranging CM signals. A transmitter tran... | 02/09/2012 |
| 20110298664 | SYSTEMS AND METHODS FOR USING A SATELLITE POSITIONING SYSTEM TO DETECT MOVED WLAN ACCESS POINTS The disclosed subject matter generally relates to hybrid positioning systems and methods and, more specifically, systems and methods of detecting moved WLAN assess points using a wireless local area network based positioning system (WLAN-PS) and a satellite-based positi... | 12/08/2011 |
| 20110298663 | SYSTEMS AND METHODS FOR USING A SATELLITE POSITIONING SYSTEM TO DETECT MOVED WLAN ACCESS POINTS The disclosed subject matter generally relates to hybrid positioning systems and methods and, more specifically, systems and methods of detecting moved WLAN assess points using a wireless local area network based positioning system (WLAN-PS) and a satellite-based positi... | 12/08/2011 |
| 20110260923 | SYSTEM AND METHOD FOR POSITIONING USING SIGNAL TRANSMIT POWER AND SIGNAL RECEIVE PACKET ERROR RATIO A system and method for positioning using signal transmit power, SNR of the signal receiving unit, signal receive PER or PLR, and distance relationship between the signal source and receiving unit. The system includes a ranging signal transmitting unit and receiving uni... | 10/27/2011 |
| 20110248887 | GEOLOCATION LEVERAGING SPOT BEAM OVERLAP A method and system are disclosed for providing an estimate of a location of a user receiver device. The method and system involve emitting from at least one vehicle at least one spot beam on Earth, and receiving with the user receiver device a signal from at least one ... | 10/13/2011 |
| 20110232585 | Radial-shape wireless dog fence system and method A radial-shaped wireless fence system is provided that contains one or more dogs in a user-defined area without the need for a physical fence or underground wire. The system includes a base unit and at least one collar, and is easy to set up and use. Through improved fi... | 09/29/2011 |
| 20110187599 | Technique For Effectively Communicating Location Information In A Wireless Communication Service In providing a wireless location communication service including a location based service to a user of a mobile device, the mobile device sends information concerning a location of the device relative to a given position in a wireless communication system. The given pos... | 08/04/2011 |
| 20110187600 | SYSTEM AND METHOD FOR MEASUREMENT OF DISTANCE TO A TAG BY A MODULATED BACKSCATTER RFID READER Distance to a modulated backscatter tag is measured with a RFID reader that measures changes in phase with frequency of modulated backscattered RF signals. Measured distances are linked to a specific tag. The effects of other sources of reflected and interfering signals... | 08/04/2011 |
| 20110148714 | Near Field Electromagnetic Location System and Method A system and method for determining a position of a locus comprising a locator device for disposition at the locus; the locator device configured for receiving an electromagnetic signal from a beacon device, the locator device receiving at a distance from the beacon dev... | 06/23/2011 |
| 20110140970 | BASE STATION DEVICE AND DISTANCE MEASURING METHOD Provided are a distance measuring device and a distance measuring method which can easily distinguish a reflected signal from a desired tag from an unnecessary wave so as to improve the distance measuring accuracy even when IR-UWB is used for measuring a distance. The m... | 06/16/2011 |
| 20110140969 | Method And System For Hybrid Positioning Using Partial Distance Information The present invention provides a method and system for positioning one or more anchor nodes or one or more non-anchor nodes in one or more communication networks. A non-anchor node may be in communication with two or more anchor nodes. The method comprises determining t... | 06/16/2011 |
| 20110102266 | WIRELESS PROXIMITY PROBE AND METHOD OF OPERATING SAME A proximity probe, for use in determining a distance to a probe target, includes a first antenna configured to wirelessly receive a radio-frequency signal at a first predetermined frequency and a converter configured to convert the received signal to a driving signal an... | 05/05/2011 |
| 20110095946 | METHOD AND SYSTEM FOR ENHANCING A LOCATION SERVER REFERENCE DATABASE THROUGH ROUND-TRIP TIME (RTT) MEASUREMENTS A mobile device in a cellular communication network collects three or more round-trip time (RTT) measurements for a single active cell. The collected RTT measurements are transmitted to a location server. The location server uses the transmitted RTT measurements to calc... | 04/28/2011 |
| 20110074634 | WIRELESS POSITIONING METHOD AND APPARATUS A wireless positioning method of a receiver is provided. Signals are received from a plurality of transmitters, propagation taps of the plurality of transmitters received from the plurality of transmitters are determined, respectively, the distance between the receiver ... | 03/31/2011 |
| 20110074632 | WIRELESS POSITIONING METHOD AND APPARATUS A wireless positioning method of a receiver is provided. Signals are received from a plurality of transmitters, propagation taps of the plurality of transmitters received from the plurality of transmitters are determined, respectively, the distance between the receiver ... | 03/31/2011 |
| 20110001668 | REBROADCASTING METHOD AND SYSTEM FOR NAVIGATION SIGNALS A “synchrolite” or rebroadcasting device allows GPS or GNSS navigation signals received at one or several locations to be processed at a separate location. The signals received by the synchrolite are added to a pilot tone and then encoded with a superimposed spread-... | 01/06/2011 |
| 20100321245 | MULTIBAND TRANSCEIVER AND POSITIONING SYSTEM USING THE TRANSCEIVER The present invention comprising: a first local oscillator for generating a first frequency; a second local oscillator for generating a second frequency; phase-difference setting means for setting a first phase difference between a transmission signal and an output of t... | 12/23/2010 |
| 20100283683 | POSITION INFORMATION DETECTION SYSTEM AND POSITION INFORMATION DETECTION METHOD An object of the present invention is to achieve a position information detection system with high precision when an obstruction and a reflective object exist. A position information detection system includes a reader/writer whose position is known, a first RF chip whos... | 11/11/2010 |
| 20100283682 | CLOCK PHASE RANGING METHODS AND SYSTEMS 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 prior estimate. The subsequent estimate allows estimate uncertainties due ... | 11/11/2010 |
| 20100245174 | POSITIONING DEVICE AND PROGRAM RECORDING STORAGE MEDIUM FOR POSITIONING A positioning device includes: a device body; a direction change detecting section that detects whether a traveling direction of the device body has been changed based on a detection of an azimuth with respect to reference axes preset in the device body; and an absolute... | 09/30/2010 |
| 20100149031 | SYSTEM AND METHOD FOR DETERMINING FORGED RADIO FREQUENCY MEASUREMENTS A system and method for determining whether a wireless device has transmitted one or more forged radio frequency (“RF”) measurements. A first set of signals from a plurality of RF sources may be received at a wireless device and transmitted to a location determining... | 06/17/2010 |
| 20100035546 | LOCATING REFERENCE NODES FOR POSITIONING DEVICES IN A WIRELESS NETWORK A method for matching an actual device in a wireless network to a corresponding device indicated in a plan (1) of such devices is provided. The method is suitable for initiating the commissioning process for a lighting control network (2) or an automated h... | 02/11/2010 |
| 20090212995 | DISTRIBUTED ITERATIVE MULTIMODAL SENSOR FUSION METHOD FOR IMPROVED COLLABORATIVE LOCALIZATION AND NAVIGATION A computer implemented method for fusing position and range measurements to determine the position of at least one node of a plurality of distributed nodes is disclosed. The method includes (a) measuring the position of at least one node; (b) computing an estimate of th... | 08/27/2009 |
| 20090201208 | 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 receiver coupled to the antenna. The location determining system may also includ... | 08/13/2009 |
| 20090055123 | DISTANCE BASED ASSOCIATION FOR ULTRA WIDE BAND (UWB) WIRELESS PERSONAL AREA NETWORK (PAN) DEVICES Methods and wireless communication device for associating UWB (Ultra Wide Band) WPAN devices through the processing of ranging information. Ranging information represents the distance between a device and another device. Devices can automatically determine whether assoc... | 02/26/2009 |
| 20080246651 | DISTANCE MEASUREMENT IN A RADIO COMMUNICATION ARRANGEMENT A radio communication arrangement including a plurality of transceivers and a distance measurement managing circuit. The distance measurement managing circuit is situated in a communication layer higher than the physical layer, is coupled with the plurality of transceiv... | 10/09/2008 |
| 20080158062 | 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 the secondary reference node and the primary reference node. The second pos... | 07/03/2008 |
| 20080129599 | Systems and methods for locating targets using digital elevation model survey points A method for determining the position of a target using digital terrain elevation data survey points and a corresponding target locating system are described. The method includes selecting at least two surveyed reference points from the digital terrain elevation data, d... | 06/05/2008 |
| 20080100505 | Method For Determing Positional Data An aspect of the invention relates to a method for determining positional data of at least one node of a network, said network comprising a number of nodes, whereby the positional data refers to an internal coordinate system. The method comprises the following steps: a)... | 05/01/2008 |
| 20070257839 | 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 network, prior to localization, moving a mobile node along the predetermined pat... | 11/08/2007 |
| 20070229356 | Devices, systems and method of determining the location of mobile personnel A locator system to be associated with a mobile person includes a receiver to receive ultra-wide bandwidth signals and a transmitter to transmit ultra-wide bandwidth signals. The transmitter is adapted to transmit ultra-wide bandwidth signals, and the receiver is adapte... | 10/04/2007 |
| 20070200759 | 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 prior estimate. The subsequent estimate allows estimate uncertainties due ... | 08/30/2007 |
| 20070063896 | Troposphere corrections for ground based positioning systems Troposphere corrections are provided in a land based transmitter-positioning system. Troposphere delays correct ranges based on X- or ISM-band carrier ranging signals with a modulation rate of the code of at least about 30 MHz. Ground based transmitters transmit non-GPS... | 03/22/2007 |
| 20070057840 | Methods and systems using relative sensing to locate targets A method for determining a position of a target is described that includes establishing a reference target position and a measuring location position and measuring a range to the target, an azimuth angle to the target, and an elevation angle to the target. The reference... | 03/15/2007 |
| 20070013584 | Methods, systems and devices for determining the location of a mobile device based on simulcast communication signals A method for determining a position of a mobile device may include receiving a communication signal at the mobile device simulcast from a plurality of transmitters. One of the plurality of transmitters is identified based on information obtained from the received simulc... | 01/18/2007 |
| 20070008220 | 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 orthogonal frequency-division multiplexing (OFDM) signal comprising a scatte... | 01/11/2007 |
| 20060250305 | 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 from the object. Also disclosed is a system and method of calculating obje... | 11/09/2006 |
| 20060214848 | 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 near-field electromagnetic (NFE) wireless transmitter having a settable operatin... | 09/28/2006 |
| 20060197704 | 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 received signal including performing a demodulation operation to produce a... | 09/07/2006 |
| 20060125693 | 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. The circles each have a center point of one of the positions in the local ... | 06/15/2006 |
